Clean up fake colors and add missing Bambu Lab colors

- Add migration 023: delete 67 fake colors, rename IronGray typo, add 16 missing real colors from spreadsheet
- Fix frontend color mappings: remove typo duplicates, rename Silk prefixed colors to match catalog
- Add Translucent Teal, Phantom Blue, Mystic Magenta mappings
- Remove non-existent ABS GF, TPU 95A HF entries
- Update tests for corrected color names

.gitea/workflows/deploy.yml

@@ -13,65 +13,100 @@ env:
   NEXT_PUBLIC_MATOMO_SITE_ID: "7"
 
 jobs:
-  deploy:
+  # ── Job 1: Change Detection ──────────────────────────────────────────
+  detect:
     runs-on: ubuntu-latest
+    outputs:
+      frontend: ${{ steps.changes.outputs.frontend }}
+      api: ${{ steps.changes.outputs.api }}
+      migrations: ${{ steps.changes.outputs.migrations }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          fetch-depth: 2
+          fetch-depth: 0
 
-      - name: Detect changes
+      - name: Detect changes since last deploy
         id: changes
         run: |
-          FRONTEND_CHANGED=false
+          # Find the latest deploy tag
-          API_CHANGED=false
+          LAST_TAG=$(git tag -l 'deploy-*' --sort=-creatordate | head -n 1)
 
-          if git diff --name-only HEAD~1 HEAD | grep -qvE '^api/'; then
+          if [ -z "$LAST_TAG" ]; then
-            FRONTEND_CHANGED=true
+            echo "No deploy tag found — deploying everything"
+            echo "frontend=true" >> $GITHUB_OUTPUT
+            echo "api=true" >> $GITHUB_OUTPUT
+            echo "migrations=true" >> $GITHUB_OUTPUT
+            exit 0
           fi
 
-          if git diff --name-only HEAD~1 HEAD | grep -qE '^api/'; then
+          echo "Last deploy tag: $LAST_TAG"
-            API_CHANGED=true
+          DIFF_FILES=$(git diff --name-only "$LAST_TAG"..HEAD)
+          echo "Changed files since $LAST_TAG:"
+          echo "$DIFF_FILES"
+
+          FRONTEND=false
+          API=false
+          MIGRATIONS=false
+
+          if echo "$DIFF_FILES" | grep -qvE '^(api/|database/)'; then
+            FRONTEND=true
+          fi
+          if echo "$DIFF_FILES" | grep -qE '^api/'; then
+            API=true
+          fi
+          if echo "$DIFF_FILES" | grep -qE '^database/migrations/'; then
+            MIGRATIONS=true
           fi
 
-          echo "frontend=$FRONTEND_CHANGED" >> $GITHUB_OUTPUT
+          echo "frontend=$FRONTEND" >> $GITHUB_OUTPUT
-          echo "api=$API_CHANGED" >> $GITHUB_OUTPUT
+          echo "api=$API" >> $GITHUB_OUTPUT
-          echo "Frontend changed: $FRONTEND_CHANGED"
+          echo "migrations=$MIGRATIONS" >> $GITHUB_OUTPUT
-          echo "API changed: $API_CHANGED"
+          echo "Frontend: $FRONTEND | API: $API | Migrations: $MIGRATIONS"
+
+  # ── Job 2: Frontend Deploy ───────────────────────────────────────────
+  deploy-frontend:
+    runs-on: ubuntu-latest
+    needs: detect
+    if: needs.detect.outputs.frontend == 'true'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
 
-      # ── Frontend Deploy ──────────────────────────────────────────────
       - name: Setup Node.js
-        if: steps.changes.outputs.frontend == 'true'
         uses: actions/setup-node@v4
         with:
           node-version: 20
 
       - name: Install dependencies
-        if: steps.changes.outputs.frontend == 'true'
         run: npm ci
 
       - name: Security check & tests
-        if: steps.changes.outputs.frontend == 'true'
         run: |
           npm run security:check
           npm test -- --passWithNoTests
 
       - name: Build Next.js
-        if: steps.changes.outputs.frontend == 'true'
         run: npm run build
 
+      - name: Verify build output
+        run: |
+          if [ ! -d "out" ]; then
+            echo "ERROR: out/ directory not found after build"
+            exit 1
+          fi
+          echo "Build output verified: $(find out -type f | wc -l) files"
+
       - name: Setup AWS
-        if: steps.changes.outputs.frontend == 'true' || steps.changes.outputs.api == 'true'
         run: |
           pip3 install -q --break-system-packages awscli
           aws configure set aws_access_key_id "${{ secrets.AWS_ACCESS_KEY_ID }}"
           aws configure set aws_secret_access_key "${{ secrets.AWS_SECRET_ACCESS_KEY }}"
-          aws configure set region eu-central-1
+          aws configure set region ${{ env.AWS_REGION }}
 
       - name: Deploy to S3 & invalidate CloudFront
-        if: steps.changes.outputs.frontend == 'true'
         run: |
+          # HTML files — no cache
           aws s3 sync out/ s3://$S3_BUCKET/ \
             --delete \
             --exclude "*" \
@@ -79,9 +114,11 @@ jobs:
             --cache-control "public, max-age=0, must-revalidate" \
             --content-type "text/html"
 
+          # Next.js assets — immutable
           aws s3 sync out/_next/ s3://$S3_BUCKET/_next/ \
             --cache-control "public, max-age=31536000, immutable"
 
+          # Everything else — 24h cache
           aws s3 sync out/ s3://$S3_BUCKET/ \
             --exclude "*.html" \
             --exclude "_next/*" \
@@ -91,20 +128,161 @@ jobs:
             --distribution-id ${{ secrets.CLOUDFRONT_DISTRIBUTION_ID }} \
             --paths "/*"
 
-      # ── API Deploy ───────────────────────────────────────────────────
+  # ── Job 3: API & Migrations Deploy ──────────────────────────────────
-      - name: Deploy API via SSM
+  deploy-api:
-        if: steps.changes.outputs.api == 'true'
+    runs-on: ubuntu-latest
+    needs: detect
+    if: needs.detect.outputs.api == 'true' || needs.detect.outputs.migrations == 'true'
+    steps:
+      - name: Setup AWS
         run: |
+          pip3 install -q --break-system-packages awscli
+          aws configure set aws_access_key_id "${{ secrets.AWS_ACCESS_KEY_ID }}"
+          aws configure set aws_secret_access_key "${{ secrets.AWS_SECRET_ACCESS_KEY }}"
+          aws configure set region ${{ env.AWS_REGION }}
+
+      - name: Run database migrations
+        if: needs.detect.outputs.migrations == 'true'
+        run: |
+          cat > /tmp/migrate-params.json << 'PARAMS'
+          {"commands":["set -e","cd /tmp","rm -rf repo.tar.gz filamenteka","curl -sf -o repo.tar.gz https://git.demirix.dev/dax/Filamenteka/archive/main.tar.gz","tar xzf repo.tar.gz","docker exec filamenteka-api rm -rf /database","docker cp filamenteka/database filamenteka-api:/database","docker cp filamenteka/api/migrate.js filamenteka-api:/app/migrate.js","rm -rf repo.tar.gz filamenteka","docker exec filamenteka-api ls /database/schema.sql /database/migrations/","docker exec -w /app filamenteka-api node migrate.js"]}
+          PARAMS
+          CMD_ID=$(aws ssm send-command \
+            --region $AWS_REGION \
+            --instance-ids "$INSTANCE_ID" \
+            --document-name "AWS-RunShellScript" \
+            --parameters file:///tmp/migrate-params.json \
+            --query "Command.CommandId" --output text)
+
+          echo "Migration SSM command: $CMD_ID"
+
+          # Poll for completion (max 2 minutes)
+          for i in $(seq 1 24); do
+            sleep 5
+            STATUS=$(aws ssm get-command-invocation \
+              --command-id "$CMD_ID" \
+              --instance-id "$INSTANCE_ID" \
+              --query "Status" --output text 2>/dev/null || echo "Pending")
+
+            echo "Attempt $i: $STATUS"
+
+            if [ "$STATUS" = "Success" ]; then
+              echo "Migrations completed successfully"
+              aws ssm get-command-invocation \
+                --command-id "$CMD_ID" \
+                --instance-id "$INSTANCE_ID" \
+                --query "StandardOutputContent" --output text
+              break
+            elif [ "$STATUS" = "Failed" ] || [ "$STATUS" = "Cancelled" ] || [ "$STATUS" = "TimedOut" ]; then
+              echo "Migration failed with status: $STATUS"
+              aws ssm get-command-invocation \
+                --command-id "$CMD_ID" \
+                --instance-id "$INSTANCE_ID" \
+                --query "StandardErrorContent" --output text
+              exit 1
+            fi
+          done
+
+          if [ "$STATUS" != "Success" ]; then
+            echo "Migration timed out after 2 minutes"
+            exit 1
+          fi
+
+      - name: Deploy server.js
+        id: deploy
+        run: |
+          cat > /tmp/deploy-params.json << 'PARAMS'
+          {"commands":["set -e","docker exec filamenteka-api cp /app/server.js /app/server.js.backup","curl -sf -o /tmp/server.js https://git.demirix.dev/dax/Filamenteka/raw/branch/main/api/server.js","docker cp /tmp/server.js filamenteka-api:/app/server.js","rm -f /tmp/server.js","docker restart filamenteka-api","echo API deployed and restarted"]}
+          PARAMS
+          CMD_ID=$(aws ssm send-command \
+            --region $AWS_REGION \
+            --instance-ids "$INSTANCE_ID" \
+            --document-name "AWS-RunShellScript" \
+            --parameters file:///tmp/deploy-params.json \
+            --query "Command.CommandId" --output text)
+
+          echo "Deploy SSM command: $CMD_ID"
+
+          for i in $(seq 1 24); do
+            sleep 5
+            STATUS=$(aws ssm get-command-invocation \
+              --command-id "$CMD_ID" \
+              --instance-id "$INSTANCE_ID" \
+              --query "Status" --output text 2>/dev/null || echo "Pending")
+
+            echo "Attempt $i: $STATUS"
+
+            if [ "$STATUS" = "Success" ]; then
+              echo "API deploy completed"
+              break
+            elif [ "$STATUS" = "Failed" ] || [ "$STATUS" = "Cancelled" ] || [ "$STATUS" = "TimedOut" ]; then
+              echo "API deploy failed with status: $STATUS"
+              aws ssm get-command-invocation \
+                --command-id "$CMD_ID" \
+                --instance-id "$INSTANCE_ID" \
+                --query "StandardErrorContent" --output text
+              exit 1
+            fi
+          done
+
+          if [ "$STATUS" != "Success" ]; then
+            echo "API deploy timed out"
+            exit 1
+          fi
+
+      - name: Health check
+        id: health
+        run: |
+          echo "Waiting for API to be ready..."
+          for i in $(seq 1 6); do
+            HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" https://api.filamenteka.rs/api/filaments || echo "000")
+            echo "Health check attempt $i: HTTP $HTTP_CODE"
+
+            if [ "$HTTP_CODE" = "200" ]; then
+              echo "API is healthy"
+              exit 0
+            fi
+            sleep 5
+          done
+
+          echo "Health check failed after 6 attempts"
+          exit 1
+
+      - name: Rollback on failure
+        if: failure() && steps.deploy.outcome == 'success'
+        run: |
+          echo "Rolling back to server.js.backup..."
+          cat > /tmp/rollback-params.json << 'PARAMS'
+          {"commands":["docker exec filamenteka-api sh -c 'if [ -f /app/server.js.backup ]; then cp /app/server.js.backup /app/server.js; fi'","docker restart filamenteka-api","echo Rollback complete"]}
+          PARAMS
           aws ssm send-command \
             --region $AWS_REGION \
             --instance-ids "$INSTANCE_ID" \
             --document-name "AWS-RunShellScript" \
-            --parameters 'commands=[
+            --parameters file:///tmp/rollback-params.json \
-              "cd /home/ubuntu/filamenteka-api",
-              "cp server.js server.js.backup",
-              "curl -o server.js https://git.demirix.dev/dax/Filamenteka/raw/branch/main/api/server.js",
-              "sudo systemctl restart node-api",
-              "sudo systemctl status node-api"
-            ]' \
             --output json
-          echo "API deploy command sent via SSM"
+          echo "Rollback command sent"
+
+  # ── Job 4: Tag Successful Deploy ────────────────────────────────────
+  tag-deploy:
+    runs-on: ubuntu-latest
+    needs: [detect, deploy-frontend, deploy-api]
+    if: >-
+      always() &&
+      needs.detect.result == 'success' &&
+      (needs.deploy-frontend.result == 'success' || needs.deploy-frontend.result == 'skipped') &&
+      (needs.deploy-api.result == 'success' || needs.deploy-api.result == 'skipped') &&
+      !(needs.deploy-frontend.result == 'skipped' && needs.deploy-api.result == 'skipped')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+          token: ${{ github.token }}
+
+      - name: Create deploy tag
+        run: |
+          TAG="deploy-$(date -u +%Y%m%d-%H%M%S)"
+          git tag "$TAG"
+          git push origin "$TAG"
+          echo "Tagged successful deploy: $TAG"

CLAUDE.md

@@ -48,14 +48,14 @@ scripts/deploy-frontend.sh    # Manual frontend deploy to S3/CloudFront
 
 ### Frontend (Next.js App Router)
 - `/app/page.tsx` — Public filament inventory table (home page)
-- `/app/upadaj/` — Admin panel: login, `/dashboard` (filament CRUD), `/colors` (color management), `/requests` (customer color requests)
+- `/app/upadaj/` — Admin panel: login, `/dashboard` (filament CRUD), `/colors` (color management), `/customers` (customer management), `/sales` (sales recording), `/requests` (customer color requests), `/analytics` (revenue/inventory dashboards)
 - `/src/services/api.ts` — Axios instance with auth interceptors (auto token injection, 401/403 redirect)
 - `/src/data/bambuLabColors.ts` — Primary color-to-hex mapping with gradient support (used by `ColorCell` component)
 - `/src/data/bambuLabColorsComplete.ts` — Extended color database grouped by finish type (used by filters)
 
 ### API (`/api/server.js`)
 Single-file Express server running on EC2 (port 80). All routes inline.
-- Endpoints: `/api/login`, `/api/filaments`, `/api/colors`, `/api/sale/bulk`, `/api/color-requests`
+- Endpoints: `/api/login`, `/api/filaments`, `/api/colors`, `/api/customers`, `/api/sales`, `/api/color-requests`, `/api/analytics/*`
 - Auth: JWT tokens with 24h expiry, single admin user (password from `ADMIN_PASSWORD` env var)
 
 ### Database (PostgreSQL on RDS)
@@ -64,13 +64,15 @@ Key schemas and constraints:
 ```
 filaments: id, tip (material), finish, boja (color), refill, spulna, kolicina, cena, sale_*
 colors: id, name, hex, cena_refill (default 3499), cena_spulna (default 3999)
+customers: id, name, phone (unique), city, notes, created_at
+sales: id, customer_id (FK→customers), total_amount, notes, created_at + sale_items join table
 color_requests: id, color_name, message, contact_name, contact_phone, status
 ```
 
 **Critical constraints:**
 - `filaments.boja` → FK to `colors.name` (ON UPDATE CASCADE) — colors must exist before filaments reference them
 - `kolicina = refill + spulna` — enforced by check constraint
-- Migrations in `/database/migrations/` with sequential numbering (currently up to `020_`)
+- Migrations in `/database/migrations/` with sequential numbering (currently up to `023_`)
 
 ## Key Patterns
 
@@ -86,7 +88,7 @@ color_requests: id, color_name, message, contact_name, contact_phone, status
 3. Optionally add to `src/data/bambuLabColorsComplete.ts` finish groups
 
 ### API Communication
-- Service modules in `src/services/api.ts`: `authService`, `colorService`, `filamentService`, `colorRequestService`
+- Service modules in `src/services/api.ts`: `authService`, `colorService`, `filamentService`, `colorRequestService`, `customerService`, `saleService`, `analyticsService`
 - Auth token stored in localStorage with 24h expiry
 - Cache busting on filament fetches via timestamp query param
 

__tests__/data/bambuLabColors.test.ts

@@ -33,9 +33,9 @@ describe('Bambu Lab Colors Data', () => {
       });
     });
 
-    it('should have Unknown fallback color', () => {
+    it('should return fallback for unknown colors', () => {
-      expect(bambuLabColors).toHaveProperty('Unknown');
+      const result = getFilamentColor('NonExistentColor');
-      expect(bambuLabColors.Unknown.hex).toBe('#CCCCCC');
+      expect(result.hex).toBe('#CCCCCC');
     });
   });
 

__tests__/data/bambuLabColorsComplete.test.ts

@@ -15,15 +15,15 @@ describe('Bambu Lab Colors Complete Data', () => {
   });
 
   it('should have matte colors', () => {
-    expect(bambuLabColors).toHaveProperty('Matte Black');
+    expect(bambuLabColors).toHaveProperty('Matte Ivory White');
-    expect(bambuLabColors).toHaveProperty('Matte White');
+    expect(bambuLabColors).toHaveProperty('Matte Charcoal');
-    expect(bambuLabColors).toHaveProperty('Matte Red');
+    expect(bambuLabColors).toHaveProperty('Matte Scarlet Red');
   });
 
   it('should have silk colors', () => {
-    expect(bambuLabColors).toHaveProperty('Silk White');
+    expect(bambuLabColors).toHaveProperty('Aurora Purple');
-    expect(bambuLabColors).toHaveProperty('Silk Black');
+    expect(bambuLabColors).toHaveProperty('Phantom Blue');
-    expect(bambuLabColors).toHaveProperty('Silk Gold');
+    expect(bambuLabColors).toHaveProperty('Mystic Magenta');
   });
 
   it('should have valid hex colors', () => {
@@ -40,12 +40,12 @@ describe('Bambu Lab Colors Complete Data', () => {
   it('should have finish categories', () => {
     expect(colorsByFinish).toHaveProperty('Basic');
     expect(colorsByFinish).toHaveProperty('Matte');
-    expect(colorsByFinish).toHaveProperty('Silk');
+    expect(colorsByFinish).toHaveProperty('Silk+');
     expect(colorsByFinish).toHaveProperty('Metal');
     expect(colorsByFinish).toHaveProperty('Sparkle');
     expect(colorsByFinish).toHaveProperty('Glow');
-    expect(colorsByFinish).toHaveProperty('Transparent');
+    expect(colorsByFinish).toHaveProperty('Translucent');
-    expect(colorsByFinish).toHaveProperty('Support');
+    expect(colorsByFinish).toHaveProperty('CF');
   });
 
   it('should return valid hex for getColorHex', () => {

__tests__/ui-features.test.ts

@@ -47,20 +47,17 @@ describe('UI Features Tests', () => {
     const adminDashboardPath = join(process.cwd(), 'app', 'dashboard', 'page.tsx');
     const adminContent = readFileSync(adminDashboardPath, 'utf-8');
 
-    // Check for material select dropdown
+    // Check for material select dropdown (now generated from catalog)
-    expect(adminContent).toContain('<option value="PLA">PLA</option>');
+    expect(adminContent).toContain('getMaterialOptions()');
-    expect(adminContent).toContain('<option value="PETG">PETG</option>');
+    expect(adminContent).toContain('Izaberi tip');
-    expect(adminContent).toContain('<option value="ABS">ABS</option>');
   });
 
-  it('should have admin header with navigation', () => {
+  it('should have admin sidebar and header', () => {
     const adminDashboardPath = join(process.cwd(), 'app', 'dashboard', 'page.tsx');
-
     const dashboardContent = readFileSync(adminDashboardPath, 'utf-8');
 
-    // Check for admin header
+    // Check for admin sidebar and header
-    expect(dashboardContent).toContain('Admin');
+    expect(dashboardContent).toContain('AdminSidebar');
-    expect(dashboardContent).toContain('Nazad na sajt');
     expect(dashboardContent).toContain('Odjava');
   });
 

api/server.js

@@ -385,6 +385,420 @@ app.delete('/api/color-requests/:id', authenticateToken, async (req, res) => {
   }
 });
 
+// ==========================================
+// Customer endpoints (admin-only)
+// ==========================================
+
+app.get('/api/customers', authenticateToken, async (req, res) => {
+  try {
+    const result = await pool.query('SELECT * FROM customers ORDER BY name');
+    res.json(result.rows);
+  } catch (error) {
+    console.error('Error fetching customers:', error);
+    res.status(500).json({ error: 'Failed to fetch customers' });
+  }
+});
+
+app.get('/api/customers/search', authenticateToken, async (req, res) => {
+  try {
+    const { q } = req.query;
+    if (!q) return res.json([]);
+    const result = await pool.query(
+      `SELECT * FROM customers WHERE name ILIKE $1 OR phone ILIKE $1 ORDER BY name LIMIT 10`,
+      [`%${q}%`]
+    );
+    res.json(result.rows);
+  } catch (error) {
+    console.error('Error searching customers:', error);
+    res.status(500).json({ error: 'Failed to search customers' });
+  }
+});
+
+app.get('/api/customers/:id', authenticateToken, async (req, res) => {
+  try {
+    const { id } = req.params;
+    const customerResult = await pool.query('SELECT * FROM customers WHERE id = $1', [id]);
+    if (customerResult.rows.length === 0) {
+      return res.status(404).json({ error: 'Customer not found' });
+    }
+    const salesResult = await pool.query(
+      `SELECT s.*,
+        (SELECT COUNT(*) FROM sale_items si WHERE si.sale_id = s.id) as item_count
+       FROM sales s WHERE s.customer_id = $1 ORDER BY s.created_at DESC`,
+      [id]
+    );
+    res.json({ ...customerResult.rows[0], sales: salesResult.rows });
+  } catch (error) {
+    console.error('Error fetching customer:', error);
+    res.status(500).json({ error: 'Failed to fetch customer' });
+  }
+});
+
+app.post('/api/customers', authenticateToken, async (req, res) => {
+  const { name, phone, city, notes } = req.body;
+  if (!name) return res.status(400).json({ error: 'Name is required' });
+  try {
+    const result = await pool.query(
+      'INSERT INTO customers (name, phone, city, notes) VALUES ($1, $2, $3, $4) RETURNING *',
+      [name, phone || null, city || null, notes || null]
+    );
+    res.json(result.rows[0]);
+  } catch (error) {
+    if (error.code === '23505') {
+      return res.status(409).json({ error: 'Customer with this phone already exists' });
+    }
+    console.error('Error creating customer:', error);
+    res.status(500).json({ error: 'Failed to create customer' });
+  }
+});
+
+app.put('/api/customers/:id', authenticateToken, async (req, res) => {
+  const { id } = req.params;
+  const { name, phone, city, notes } = req.body;
+  try {
+    const result = await pool.query(
+      `UPDATE customers SET name = $1, phone = $2, city = $3, notes = $4, updated_at = CURRENT_TIMESTAMP
+       WHERE id = $5 RETURNING *`,
+      [name, phone || null, city || null, notes || null, id]
+    );
+    if (result.rows.length === 0) return res.status(404).json({ error: 'Customer not found' });
+    res.json(result.rows[0]);
+  } catch (error) {
+    console.error('Error updating customer:', error);
+    res.status(500).json({ error: 'Failed to update customer' });
+  }
+});
+
+// ==========================================
+// Sale endpoints (admin-only)
+// ==========================================
+
+app.post('/api/sales', authenticateToken, async (req, res) => {
+  const client = await pool.connect();
+  try {
+    await client.query('BEGIN');
+    const { customer, items, notes } = req.body;
+
+    if (!customer || !customer.name) {
+      await client.query('ROLLBACK');
+      return res.status(400).json({ error: 'Customer name is required' });
+    }
+    if (!items || items.length === 0) {
+      await client.query('ROLLBACK');
+      return res.status(400).json({ error: 'At least one item is required' });
+    }
+
+    // Find-or-create customer by phone
+    let customerId;
+    if (customer.phone) {
+      const existing = await client.query(
+        'SELECT id FROM customers WHERE phone = $1', [customer.phone]
+      );
+      if (existing.rows.length > 0) {
+        customerId = existing.rows[0].id;
+        // Update name/city if provided
+        await client.query(
+          `UPDATE customers SET name = $1, city = COALESCE($2, city), notes = COALESCE($3, notes), updated_at = CURRENT_TIMESTAMP WHERE id = $4`,
+          [customer.name, customer.city, customer.notes, customerId]
+        );
+      }
+    }
+    if (!customerId) {
+      const newCust = await client.query(
+        'INSERT INTO customers (name, phone, city, notes) VALUES ($1, $2, $3, $4) RETURNING id',
+        [customer.name, customer.phone || null, customer.city || null, customer.notes || null]
+      );
+      customerId = newCust.rows[0].id;
+    }
+
+    // Process items
+    let totalAmount = 0;
+    const saleItems = [];
+
+    for (const item of items) {
+      const { filament_id, item_type, quantity } = item;
+      if (!['refill', 'spulna'].includes(item_type)) {
+        await client.query('ROLLBACK');
+        return res.status(400).json({ error: `Invalid item_type: ${item_type}` });
+      }
+
+      // Get filament with stock check
+      const filamentResult = await client.query(
+        'SELECT f.*, c.cena_refill, c.cena_spulna FROM filaments f JOIN colors c ON f.boja = c.name WHERE f.id = $1 FOR UPDATE',
+        [filament_id]
+      );
+      if (filamentResult.rows.length === 0) {
+        await client.query('ROLLBACK');
+        return res.status(400).json({ error: `Filament ${filament_id} not found` });
+      }
+
+      const filament = filamentResult.rows[0];
+      if (filament[item_type] < quantity) {
+        await client.query('ROLLBACK');
+        return res.status(400).json({
+          error: `Insufficient stock for ${filament.boja} ${item_type}: have ${filament[item_type]}, need ${quantity}`
+        });
+      }
+
+      // Determine price (apply sale discount if active)
+      let unitPrice = item_type === 'refill' ? (filament.cena_refill || 3499) : (filament.cena_spulna || 3999);
+      if (filament.sale_active && filament.sale_percentage > 0) {
+        unitPrice = Math.round(unitPrice * (1 - filament.sale_percentage / 100));
+      }
+
+      // Decrement inventory
+      const updateField = item_type === 'refill' ? 'refill' : 'spulna';
+      await client.query(
+        `UPDATE filaments SET ${updateField} = ${updateField} - $1, kolicina = kolicina - $1, updated_at = CURRENT_TIMESTAMP WHERE id = $2`,
+        [quantity, filament_id]
+      );
+
+      totalAmount += unitPrice * quantity;
+      saleItems.push({ filament_id, item_type, quantity, unit_price: unitPrice });
+    }
+
+    // Insert sale
+    const saleResult = await client.query(
+      'INSERT INTO sales (customer_id, total_amount, notes) VALUES ($1, $2, $3) RETURNING *',
+      [customerId, totalAmount, notes || null]
+    );
+    const sale = saleResult.rows[0];
+
+    // Insert sale items
+    for (const si of saleItems) {
+      await client.query(
+        'INSERT INTO sale_items (sale_id, filament_id, item_type, quantity, unit_price) VALUES ($1, $2, $3, $4, $5)',
+        [sale.id, si.filament_id, si.item_type, si.quantity, si.unit_price]
+      );
+    }
+
+    await client.query('COMMIT');
+
+    // Fetch full sale with items
+    const fullSale = await pool.query(
+      `SELECT s.*, c.name as customer_name, c.phone as customer_phone
+       FROM sales s LEFT JOIN customers c ON s.customer_id = c.id WHERE s.id = $1`,
+      [sale.id]
+    );
+    const fullItems = await pool.query(
+      `SELECT si.*, f.tip as filament_tip, f.finish as filament_finish, f.boja as filament_boja
+       FROM sale_items si JOIN filaments f ON si.filament_id = f.id WHERE si.sale_id = $1`,
+      [sale.id]
+    );
+    res.json({ ...fullSale.rows[0], items: fullItems.rows });
+  } catch (error) {
+    await client.query('ROLLBACK');
+    console.error('Error creating sale:', error);
+    res.status(500).json({ error: 'Failed to create sale' });
+  } finally {
+    client.release();
+  }
+});
+
+app.get('/api/sales', authenticateToken, async (req, res) => {
+  try {
+    const page = parseInt(req.query.page) || 1;
+    const limit = parseInt(req.query.limit) || 50;
+    const offset = (page - 1) * limit;
+
+    const countResult = await pool.query('SELECT COUNT(*) FROM sales');
+    const total = parseInt(countResult.rows[0].count);
+
+    const result = await pool.query(
+      `SELECT s.*, c.name as customer_name, c.phone as customer_phone,
+        (SELECT COUNT(*) FROM sale_items si WHERE si.sale_id = s.id) as item_count
+       FROM sales s LEFT JOIN customers c ON s.customer_id = c.id
+       ORDER BY s.created_at DESC LIMIT $1 OFFSET $2`,
+      [limit, offset]
+    );
+    res.json({ sales: result.rows, total });
+  } catch (error) {
+    console.error('Error fetching sales:', error);
+    res.status(500).json({ error: 'Failed to fetch sales' });
+  }
+});
+
+app.get('/api/sales/:id', authenticateToken, async (req, res) => {
+  try {
+    const { id } = req.params;
+    const saleResult = await pool.query(
+      `SELECT s.*, c.name as customer_name, c.phone as customer_phone, c.city as customer_city
+       FROM sales s LEFT JOIN customers c ON s.customer_id = c.id WHERE s.id = $1`,
+      [id]
+    );
+    if (saleResult.rows.length === 0) return res.status(404).json({ error: 'Sale not found' });
+
+    const itemsResult = await pool.query(
+      `SELECT si.*, f.tip as filament_tip, f.finish as filament_finish, f.boja as filament_boja
+       FROM sale_items si JOIN filaments f ON si.filament_id = f.id WHERE si.sale_id = $1 ORDER BY si.created_at`,
+      [id]
+    );
+    res.json({ ...saleResult.rows[0], items: itemsResult.rows });
+  } catch (error) {
+    console.error('Error fetching sale:', error);
+    res.status(500).json({ error: 'Failed to fetch sale' });
+  }
+});
+
+app.delete('/api/sales/:id', authenticateToken, async (req, res) => {
+  const client = await pool.connect();
+  try {
+    await client.query('BEGIN');
+    const { id } = req.params;
+
+    // Get sale items to restore inventory
+    const itemsResult = await client.query('SELECT * FROM sale_items WHERE sale_id = $1', [id]);
+    if (itemsResult.rows.length === 0) {
+      await client.query('ROLLBACK');
+      return res.status(404).json({ error: 'Sale not found' });
+    }
+
+    // Restore inventory for each item
+    for (const item of itemsResult.rows) {
+      const updateField = item.item_type === 'refill' ? 'refill' : 'spulna';
+      await client.query(
+        `UPDATE filaments SET ${updateField} = ${updateField} + $1, kolicina = kolicina + $1, updated_at = CURRENT_TIMESTAMP WHERE id = $2`,
+        [item.quantity, item.filament_id]
+      );
+    }
+
+    // Delete sale (cascade deletes sale_items)
+    await client.query('DELETE FROM sales WHERE id = $1', [id]);
+    await client.query('COMMIT');
+    res.json({ success: true });
+  } catch (error) {
+    await client.query('ROLLBACK');
+    console.error('Error deleting sale:', error);
+    res.status(500).json({ error: 'Failed to delete sale' });
+  } finally {
+    client.release();
+  }
+});
+
+// ==========================================
+// Analytics endpoints (admin-only)
+// ==========================================
+
+function getPeriodInterval(period) {
+  const map = {
+    '7d': '7 days', '30d': '30 days', '90d': '90 days',
+    '6m': '6 months', '1y': '1 year', 'all': '100 years'
+  };
+  return map[period] || '30 days';
+}
+
+app.get('/api/analytics/overview', authenticateToken, async (req, res) => {
+  try {
+    const interval = getPeriodInterval(req.query.period);
+    const result = await pool.query(
+      `SELECT
+        COALESCE(SUM(total_amount), 0) as revenue,
+        COUNT(*) as sales_count,
+        COALESCE(ROUND(AVG(total_amount)), 0) as avg_order_value,
+        COUNT(DISTINCT customer_id) as unique_customers
+       FROM sales WHERE created_at >= NOW() - $1::interval`,
+      [interval]
+    );
+    res.json(result.rows[0]);
+  } catch (error) {
+    console.error('Error fetching analytics overview:', error);
+    res.status(500).json({ error: 'Failed to fetch analytics' });
+  }
+});
+
+app.get('/api/analytics/top-sellers', authenticateToken, async (req, res) => {
+  try {
+    const interval = getPeriodInterval(req.query.period);
+    const result = await pool.query(
+      `SELECT f.boja, f.tip, f.finish,
+        SUM(si.quantity) as total_qty,
+        SUM(si.quantity * si.unit_price) as total_revenue
+       FROM sale_items si
+       JOIN filaments f ON si.filament_id = f.id
+       JOIN sales s ON si.sale_id = s.id
+       WHERE s.created_at >= NOW() - $1::interval
+       GROUP BY f.boja, f.tip, f.finish
+       ORDER BY total_qty DESC LIMIT 10`,
+      [interval]
+    );
+    res.json(result.rows);
+  } catch (error) {
+    console.error('Error fetching top sellers:', error);
+    res.status(500).json({ error: 'Failed to fetch top sellers' });
+  }
+});
+
+app.get('/api/analytics/inventory-alerts', authenticateToken, async (req, res) => {
+  try {
+    const result = await pool.query(
+      `SELECT f.id, f.boja, f.tip, f.finish, f.refill, f.spulna, f.kolicina,
+        COALESCE(
+          (SELECT SUM(si.quantity)::float / GREATEST(EXTRACT(EPOCH FROM (NOW() - MIN(s.created_at))) / 86400, 1)
+           FROM sale_items si JOIN sales s ON si.sale_id = s.id
+           WHERE si.filament_id = f.id AND s.created_at >= NOW() - INTERVAL '90 days'),
+          0
+        ) as avg_daily_sales
+       FROM filaments f
+       WHERE f.kolicina <= 5
+       ORDER BY f.kolicina ASC, f.boja`
+    );
+    const rows = result.rows.map(r => ({
+      ...r,
+      avg_daily_sales: parseFloat(r.avg_daily_sales) || 0,
+      days_until_stockout: r.avg_daily_sales > 0
+        ? Math.round(r.kolicina / r.avg_daily_sales)
+        : null
+    }));
+    res.json(rows);
+  } catch (error) {
+    console.error('Error fetching inventory alerts:', error);
+    res.status(500).json({ error: 'Failed to fetch inventory alerts' });
+  }
+});
+
+app.get('/api/analytics/revenue-chart', authenticateToken, async (req, res) => {
+  try {
+    const interval = getPeriodInterval(req.query.period || '6m');
+    const group = req.query.group || 'month';
+    const truncTo = group === 'day' ? 'day' : group === 'week' ? 'week' : 'month';
+
+    const result = await pool.query(
+      `SELECT DATE_TRUNC($1, created_at) as period,
+        SUM(total_amount) as revenue,
+        COUNT(*) as count
+       FROM sales
+       WHERE created_at >= NOW() - $2::interval
+       GROUP BY DATE_TRUNC($1, created_at)
+       ORDER BY period`,
+      [truncTo, interval]
+    );
+    res.json(result.rows);
+  } catch (error) {
+    console.error('Error fetching revenue chart:', error);
+    res.status(500).json({ error: 'Failed to fetch revenue chart' });
+  }
+});
+
+app.get('/api/analytics/type-breakdown', authenticateToken, async (req, res) => {
+  try {
+    const interval = getPeriodInterval(req.query.period);
+    const result = await pool.query(
+      `SELECT si.item_type,
+        SUM(si.quantity) as total_qty,
+        SUM(si.quantity * si.unit_price) as total_revenue
+       FROM sale_items si
+       JOIN sales s ON si.sale_id = s.id
+       WHERE s.created_at >= NOW() - $1::interval
+       GROUP BY si.item_type`,
+      [interval]
+    );
+    res.json(result.rows);
+  } catch (error) {
+    console.error('Error fetching type breakdown:', error);
+    res.status(500).json({ error: 'Failed to fetch type breakdown' });
+  }
+});
+
 app.listen(PORT, () => {
   console.log(`Server running on port ${PORT}`);
 });

app/dashboard/page.tsx

@@ -7,70 +7,40 @@ import { Filament } from '@/src/types/filament';
 import { trackEvent } from '@/src/components/MatomoAnalytics';
 import { SaleManager } from '@/src/components/SaleManager';
 import { BulkFilamentPriceEditor } from '@/src/components/BulkFilamentPriceEditor';
-// Removed unused imports for Bambu Lab color categorization
+import { AdminSidebar } from '@/src/components/AdminSidebar';
+import {
+  getFinishesForMaterial,
+  getColorsForMaterialFinish,
+  catalogIsSpoolOnly,
+  catalogIsRefillOnly,
+  getMaterialOptions,
+} from '@/src/data/bambuLabCatalog';
 import '@/src/styles/select.css';
 
-// Colors that only come as refills (no spools)
+// Catalog-driven helpers
-const REFILL_ONLY_COLORS = [
+const isSpoolOnly = (finish?: string, type?: string, color?: string): boolean => {
-  'Beige',
+  if (!type || !finish) return false;
-  'Light Gray',
+  if (color) return catalogIsSpoolOnly(type, finish, color);
-  'Yellow',
+  // If no specific color, check if ALL colors in this finish are spool-only
-  'Orange',
+  const colors = getColorsForMaterialFinish(type, finish);
-  'Gold',
+  return colors.length > 0 && colors.every(c => c.spool && !c.refill);
-  'Bright Green',
-  'Pink',
-  'Magenta',
-  'Maroon Red',
-  'Purple',
-  'Turquoise',
-  'Cobalt Blue',
-  'Brown',
-  'Bronze',
-  'Silver',
-  'Blue Grey',
-  'Dark Gray'
-];
-
-// Helper function to check if a filament is spool-only
-const isSpoolOnly = (finish?: string, type?: string): boolean => {
-  return finish === 'Translucent' || finish === 'Metal' || finish === 'Silk+' || finish === 'Wood' || (type === 'PPA' && finish === 'CF') || type === 'PA6' || type === 'PC';
 };
 
-// Helper function to check if a filament should be refill-only
 const isRefillOnly = (color: string, finish?: string, type?: string): boolean => {
-  // If the finish/type combination is spool-only, then it's not refill-only
+  if (!type || !finish || !color) return false;
-  if (isSpoolOnly(finish, type)) {
+  return catalogIsRefillOnly(type, finish, color);
-    return false;
-  }
-  // Translucent finish always has spool option
-  if (finish === 'Translucent') {
-    return false;
-  }
-  // Specific type/finish/color combinations that are refill-only
-  if (type === 'ABS' && finish === 'GF' && (color === 'Yellow' || color === 'Orange')) {
-    return true;
-  }
-  if (type === 'TPU' && finish === '95A HF') {
-    return true;
-  }
-  // All colors starting with "Matte " prefix are refill-only
-  if (color.startsWith('Matte ')) {
-    return true;
-  }
-  // Galaxy and Basic colors have spools available (not refill-only)
-  if (finish === 'Galaxy' || finish === 'Basic') {
-    return false;
-  }
-  return REFILL_ONLY_COLORS.includes(color);
 };
 
-// Helper function to filter colors based on material and finish
+const getFilteredColors = (
-const getFilteredColors = (colors: Array<{id: string, name: string, hex: string, cena_refill?: number, cena_spulna?: number}>, type?: string, finish?: string) => {
+  colors: Array<{id: string, name: string, hex: string, cena_refill?: number, cena_spulna?: number}>,
-  // PPA CF only has black color
+  type?: string,
-  if (type === 'PPA' && finish === 'CF') {
+  finish?: string
-    return colors.filter(color => color.name.toLowerCase() === 'black');
+) => {
-  }
+  if (!type || !finish) return colors;
-  return colors;
+  const catalogColors = getColorsForMaterialFinish(type, finish);
+  if (catalogColors.length === 0) return colors;
+  const catalogNames = new Set(catalogColors.map(c => c.name.toLowerCase()));
+  return colors.filter(c => catalogNames.has(c.name.toLowerCase()));
 };
 
 interface FilamentWithId extends Filament {
@@ -80,22 +50,6 @@ interface FilamentWithId extends Filament {
   boja_hex?: string;
 }
 
-// Finish options by filament type
-const FINISH_OPTIONS_BY_TYPE: Record<string, string[]> = {
-  'ABS': ['GF', 'Bez Finisha'],
-  'PLA': ['85A', '90A', '95A HF', 'Aero', 'Basic', 'Basic Gradient', 'CF', 'FR', 'Galaxy', 'GF', 'Glow', 'HF', 'Marble', 'Matte', 'Metal', 'Silk Multi-Color', 'Silk+', 'Sparkle', 'Tough+', 'Translucent', 'Wood'],
-  'TPU': ['85A', '90A', '95A HF'],
-  'PETG': ['Basic', 'CF', 'FR', 'HF', 'Translucent'],
-  'PC': ['CF', 'FR', 'Bez Finisha'],
-  'ASA': ['Bez Finisha'],
-  'PA': ['CF', 'GF', 'Bez Finisha'],
-  'PA6': ['CF', 'GF'],
-  'PAHT': ['CF', 'Bez Finisha'],
-  'PPA': ['CF'],
-  'PVA': ['Bez Finisha'],
-  'HIPS': ['Bez Finisha']
-};
-
 export default function AdminDashboard() {
   const router = useRouter();
   const [filaments, setFilaments] = useState<FilamentWithId[]>([]);
@@ -360,8 +314,10 @@ export default function AdminDashboard() {
 
   return (
     <div className="min-h-screen bg-gray-50 dark:bg-gray-900 transition-colors">
-      {/* Main Content - Full Screen */}
+      <div className="flex">
-      <div className="w-full">
+        <AdminSidebar />
+        {/* Main Content */}
+        <div className="flex-1">
           <header className="bg-white dark:bg-gray-800 shadow transition-colors">
             <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-4 lg:py-6">
               <div className="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-4">
@@ -401,24 +357,6 @@ export default function AdminDashboard() {
                     filaments={filaments}
                     onUpdate={fetchFilaments}
                   />
-                  <button
-                    onClick={() => router.push('/upadaj/colors')}
-                    className="flex-1 sm:flex-initial px-3 sm:px-4 py-2 bg-purple-500 text-white rounded hover:bg-purple-600 text-sm sm:text-base"
-                  >
-                    Boje
-                  </button>
-                  <button
-                    onClick={() => router.push('/upadaj/requests')}
-                    className="flex-1 sm:flex-initial px-3 sm:px-4 py-2 bg-indigo-500 text-white rounded hover:bg-indigo-600 text-sm sm:text-base"
-                  >
-                    Zahtevi
-                  </button>
-                  <button
-                    onClick={() => router.push('/')}
-                    className="flex-1 sm:flex-initial px-3 sm:px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600 text-sm sm:text-base"
-                  >
-                    Nazad na sajt
-                  </button>
                   {mounted && (
                     <button
                       onClick={() => setDarkMode(!darkMode)}
@@ -686,6 +624,7 @@ export default function AdminDashboard() {
           </table>
         </div>
           </main>
+        </div>
       </div>
     </div>
   );
@@ -710,7 +649,7 @@ function FilamentForm({
     finish: filament.finish || (filament.id ? '' : 'Basic'), // Default to Basic for new filaments
     boja: filament.boja || '',
     boja_hex: filament.boja_hex || '',
-    refill: isSpoolOnly(filament.finish, filament.tip) ? 0 : (filament.refill || 0),  // Store as number
+    refill: isSpoolOnly(filament.finish, filament.tip, filament.boja) ? 0 : (filament.refill || 0),  // Store as number
     spulna: isRefillOnly(filament.boja || '', filament.finish, filament.tip) ? 0 : (filament.spulna || 0), // Store as number
     kolicina: filament.kolicina || 0,  // Default to 0, stored as number
     cena: '', // Price is now determined by color selection
@@ -787,9 +726,9 @@ function FilamentForm({
       });
     } else if (name === 'tip') {
       // If changing filament type, reset finish if it's not compatible
-      const newTypeFinishes = FINISH_OPTIONS_BY_TYPE[value] || [];
+      const newTypeFinishes = getFinishesForMaterial(value);
       const resetFinish = !newTypeFinishes.includes(formData.finish);
-      const spoolOnly = isSpoolOnly(formData.finish, value);
+      const spoolOnly = isSpoolOnly(formData.finish, value, formData.boja);
       // If changing to PPA with CF finish and current color is not black, reset color
       const needsColorReset = value === 'PPA' && formData.finish === 'CF' && formData.boja.toLowerCase() !== 'black';
       setFormData({
@@ -810,7 +749,7 @@ function FilamentForm({
     } else if (name === 'finish') {
       // If changing to Translucent finish, enable spool option and disable refill
       const refillOnly = isRefillOnly(formData.boja, value, formData.tip);
-      const spoolOnly = isSpoolOnly(value, formData.tip);
+      const spoolOnly = isSpoolOnly(value, formData.tip, formData.boja);
       // If changing to PPA CF and current color is not black, reset color
       const needsColorReset = formData.tip === 'PPA' && value === 'CF' && formData.boja.toLowerCase() !== 'black';
       setFormData({
@@ -887,17 +826,9 @@ function FilamentForm({
             className="custom-select w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100 focus:outline-none focus:ring-2 focus:ring-blue-500"
           >
             <option value="">Izaberi tip</option>
-            <option value="ABS">ABS</option>
+            {getMaterialOptions().map(mat => (
-            <option value="ASA">ASA</option>
+              <option key={mat} value={mat}>{mat}</option>
-            <option value="PA6">PA6</option>
+            ))}
-            <option value="PAHT">PAHT</option>
-            <option value="PC">PC</option>
-            <option value="PET">PET</option>
-            <option value="PETG">PETG</option>
-            <option value="PLA">PLA</option>
-            <option value="PPA">PPA</option>
-            <option value="PPS">PPS</option>
-            <option value="TPU">TPU</option>
           </select>
         </div>
 
@@ -911,7 +842,7 @@ function FilamentForm({
             className="custom-select w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100 focus:outline-none focus:ring-2 focus:ring-blue-500"
           >
             <option value="">Izaberi finiš</option>
-            {(FINISH_OPTIONS_BY_TYPE[formData.tip] || []).map(finish => (
+            {getFinishesForMaterial(formData.tip).map(finish => (
               <option key={finish} value={finish}>{finish}</option>
             ))}
           </select>
@@ -991,9 +922,9 @@ function FilamentForm({
             min="0"
             step="1"
             placeholder="3499"
-            disabled={isSpoolOnly(formData.finish, formData.tip)}
+            disabled={isSpoolOnly(formData.finish, formData.tip, formData.boja)}
             className={`w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md ${
-              isSpoolOnly(formData.finish, formData.tip)
+              isSpoolOnly(formData.finish, formData.tip, formData.boja)
                 ? 'bg-gray-100 dark:bg-gray-600 cursor-not-allowed'
                 : 'bg-white dark:bg-gray-700'
             } text-green-600 dark:text-green-400 font-bold focus:outline-none focus:ring-2 focus:ring-green-500`}
@@ -1025,7 +956,7 @@ function FilamentForm({
         <div>
           <label className="block text-sm font-medium mb-1 text-gray-700 dark:text-gray-300">
             Refil
-            {isSpoolOnly(formData.finish, formData.tip) && (
+            {isSpoolOnly(formData.finish, formData.tip, formData.boja) && (
               <span className="text-xs text-gray-500 dark:text-gray-400 ml-2">(samo špulna postoji)</span>
             )}
           </label>
@@ -1037,9 +968,9 @@ function FilamentForm({
             min="0"
             step="1"
             placeholder="0"
-            disabled={isSpoolOnly(formData.finish, formData.tip)}
+            disabled={isSpoolOnly(formData.finish, formData.tip, formData.boja)}
             className={`w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md ${
-              isSpoolOnly(formData.finish, formData.tip)
+              isSpoolOnly(formData.finish, formData.tip, formData.boja)
                 ? 'bg-gray-100 dark:bg-gray-600 cursor-not-allowed'
                 : 'bg-white dark:bg-gray-700'
             } text-gray-900 dark:text-gray-100 focus:outline-none focus:ring-2 focus:ring-blue-500`}

app/page.tsx

@@ -91,6 +91,40 @@ export default function Home() {
 
   return (
     <div className="min-h-screen bg-gray-50 dark:bg-gray-900 transition-colors">
+      {/* Full-screen notice overlay - remove after March 8 */}
+      <div className="fixed inset-0 z-50 flex items-center justify-center bg-gradient-to-br from-gray-950 via-gray-900 to-gray-950 px-6 overflow-hidden">
+        {/* Subtle background glow */}
+        <div className="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 w-[600px] h-[600px] bg-amber-500/5 rounded-full blur-3xl" />
+
+        <div className="relative max-w-xl w-full text-center space-y-10">
+          <img
+            src="/logo.png"
+            alt="Filamenteka"
+            className="h-32 sm:h-44 w-auto mx-auto drop-shadow-2xl"
+            onError={(e) => { (e.currentTarget as HTMLImageElement).style.display = 'none'; }}
+          />
+
+          <div className="space-y-6">
+            <div className="inline-flex items-center gap-2 px-4 py-1.5 bg-amber-500/10 border border-amber-500/20 rounded-full">
+              <span className="w-2 h-2 bg-amber-400 rounded-full animate-pulse" />
+              <span className="text-amber-400 text-sm font-medium tracking-wide uppercase">Obaveštenje</span>
+            </div>
+
+            <h1 className="text-3xl sm:text-4xl font-bold text-white tracking-tight">
+              Privremena pauza
+            </h1>
+
+            <p className="text-lg sm:text-xl text-gray-400 leading-relaxed max-w-md mx-auto">
+              Trenutno primamo porudžbine samo od postojećih kupaca. Redovna prodaja se vraća nakon <span className="text-amber-400 font-semibold">8. marta</span>.
+            </p>
+          </div>
+
+          <div className="pt-6 border-t border-white/5">
+            <p className="text-gray-600 text-sm">Hvala na razumevanju</p>
+          </div>
+        </div>
+      </div>
+
       <header className="bg-gradient-to-r from-blue-50 to-orange-50 dark:from-gray-800 dark:to-gray-900 shadow-lg transition-all duration-300">
         <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-3 sm:py-4">
           <div className="flex flex-col sm:flex-row items-center justify-between gap-3 sm:gap-0">

app/upadaj/analytics/page.tsx

@@ -0,0 +1,427 @@
+'use client'
+
+import { useState, useEffect, useCallback } from 'react';
+import { useRouter } from 'next/navigation';
+import { analyticsService } from '@/src/services/api';
+import type { AnalyticsOverview, TopSeller, RevenueDataPoint, InventoryAlert, TypeBreakdown } from '@/src/types/sales';
+import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, ResponsiveContainer, BarChart, Bar, PieChart, Pie, Cell, Legend } from 'recharts';
+import { AdminSidebar } from '@/src/components/AdminSidebar';
+
+type Period = '7d' | '30d' | '90d' | '6m' | '1y' | 'all';
+
+const PERIOD_LABELS: Record<Period, string> = {
+  '7d': '7d',
+  '30d': '30d',
+  '90d': '90d',
+  '6m': '6m',
+  '1y': '1y',
+  'all': 'Sve',
+};
+
+const PERIOD_GROUP: Record<Period, string> = {
+  '7d': 'day',
+  '30d': 'day',
+  '90d': 'week',
+  '6m': 'month',
+  '1y': 'month',
+  'all': 'month',
+};
+
+function formatRSD(value: number): string {
+  return new Intl.NumberFormat('sr-RS', {
+    style: 'currency',
+    currency: 'RSD',
+    minimumFractionDigits: 0,
+    maximumFractionDigits: 0,
+  }).format(value);
+}
+
+export default function AnalyticsDashboard() {
+  const router = useRouter();
+  const [mounted, setMounted] = useState(false);
+  const [darkMode, setDarkMode] = useState(false);
+  const [period, setPeriod] = useState<Period>('30d');
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+
+  const [overview, setOverview] = useState<AnalyticsOverview | null>(null);
+  const [topSellers, setTopSellers] = useState<TopSeller[]>([]);
+  const [revenueData, setRevenueData] = useState<RevenueDataPoint[]>([]);
+  const [inventoryAlerts, setInventoryAlerts] = useState<InventoryAlert[]>([]);
+  const [typeBreakdown, setTypeBreakdown] = useState<TypeBreakdown[]>([]);
+
+  // Initialize dark mode
+  useEffect(() => {
+    setMounted(true);
+    const saved = localStorage.getItem('darkMode');
+    setDarkMode(saved !== null ? JSON.parse(saved) : true);
+  }, []);
+
+  useEffect(() => {
+    if (!mounted) return;
+    localStorage.setItem('darkMode', JSON.stringify(darkMode));
+    if (darkMode) document.documentElement.classList.add('dark');
+    else document.documentElement.classList.remove('dark');
+  }, [darkMode, mounted]);
+
+  // Check authentication
+  useEffect(() => {
+    if (!mounted) return;
+    const token = localStorage.getItem('authToken');
+    const expiry = localStorage.getItem('tokenExpiry');
+    if (!token || !expiry || Date.now() > parseInt(expiry)) {
+      window.location.href = '/upadaj';
+    }
+  }, [mounted]);
+
+  const fetchData = useCallback(async () => {
+    try {
+      setLoading(true);
+      setError('');
+      const [overviewData, topSellersData, revenueChartData, alertsData, breakdownData] = await Promise.all([
+        analyticsService.getOverview(period),
+        analyticsService.getTopSellers(period),
+        analyticsService.getRevenueChart(period, PERIOD_GROUP[period]),
+        analyticsService.getInventoryAlerts(),
+        analyticsService.getTypeBreakdown(period),
+      ]);
+      setOverview(overviewData);
+      setTopSellers(topSellersData);
+      setRevenueData(revenueChartData);
+      setInventoryAlerts(alertsData);
+      setTypeBreakdown(breakdownData);
+    } catch (err) {
+      setError('Greska pri ucitavanju analitike');
+      console.error('Analytics fetch error:', err);
+    } finally {
+      setLoading(false);
+    }
+  }, [period]);
+
+  useEffect(() => {
+    fetchData();
+  }, [fetchData]);
+
+  const handleLogout = () => {
+    localStorage.removeItem('authToken');
+    localStorage.removeItem('tokenExpiry');
+    router.push('/upadaj');
+  };
+
+  const PIE_COLORS = ['#22c55e', '#3b82f6'];
+
+  const getStockRowClass = (alert: InventoryAlert): string => {
+    if (alert.days_until_stockout === null) return '';
+    if (alert.days_until_stockout < 7) return 'bg-red-50 dark:bg-red-900/20';
+    if (alert.days_until_stockout < 14) return 'bg-yellow-50 dark:bg-yellow-900/20';
+    return 'bg-green-50 dark:bg-green-900/20';
+  };
+
+  if (!mounted) {
+    return (
+      <div className="min-h-screen bg-gray-50 dark:bg-gray-900 flex items-center justify-center">
+        <div className="text-gray-600 dark:text-gray-400">Ucitavanje...</div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="min-h-screen bg-gray-50 dark:bg-gray-900 transition-colors">
+      <div className="flex">
+        <AdminSidebar />
+
+        {/* Main Content */}
+        <div className="flex-1">
+          <header className="bg-white dark:bg-gray-800 shadow transition-colors">
+            <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-6">
+              <div className="flex justify-between items-center">
+                <div className="flex items-center gap-4">
+                  <img
+                    src="/logo.png"
+                    alt="Filamenteka"
+                    className="h-20 sm:h-32 w-auto drop-shadow-lg"
+                  />
+                  <h1 className="text-3xl font-bold text-gray-900 dark:text-white">Analitika</h1>
+                </div>
+                <div className="flex gap-4 flex-wrap">
+                  <button
+                    onClick={() => router.push('/')}
+                    className="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600"
+                  >
+                    Nazad na sajt
+                  </button>
+                  {mounted && (
+                    <button
+                      onClick={() => setDarkMode(!darkMode)}
+                      className="px-4 py-2 bg-gray-200 dark:bg-gray-700 text-gray-800 dark:text-gray-200 rounded hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+                      title={darkMode ? 'Svetla tema' : 'Tamna tema'}
+                    >
+                      {darkMode ? '\u2600\uFE0F' : '\uD83C\uDF19'}
+                    </button>
+                  )}
+                  <button
+                    onClick={handleLogout}
+                    className="px-4 py-2 bg-red-500 text-white rounded hover:bg-red-600"
+                  >
+                    Odjava
+                  </button>
+                </div>
+              </div>
+            </div>
+          </header>
+
+          <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+            {error && (
+              <div className="mb-4 p-4 bg-red-50 dark:bg-red-900/20 text-red-800 dark:text-red-400 rounded">
+                {error}
+              </div>
+            )}
+
+            {/* Period Selector */}
+            <div className="mb-6 flex gap-2">
+              {(Object.keys(PERIOD_LABELS) as Period[]).map((p) => (
+                <button
+                  key={p}
+                  onClick={() => setPeriod(p)}
+                  className={`px-4 py-2 rounded font-medium transition-colors ${
+                    period === p
+                      ? 'bg-blue-500 text-white'
+                      : 'bg-white dark:bg-gray-800 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 shadow'
+                  }`}
+                >
+                  {PERIOD_LABELS[p]}
+                </button>
+              ))}
+            </div>
+
+            {loading ? (
+              <div className="flex items-center justify-center py-20">
+                <div className="text-gray-600 dark:text-gray-400">Ucitavanje analitike...</div>
+              </div>
+            ) : (
+              <>
+                {/* Overview Cards */}
+                <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mb-8">
+                  <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                    <h3 className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-1">Prihod</h3>
+                    <p className="text-2xl font-bold text-gray-900 dark:text-white">
+                      {overview ? formatRSD(overview.revenue) : '-'}
+                    </p>
+                  </div>
+                  <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                    <h3 className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-1">Broj prodaja</h3>
+                    <p className="text-2xl font-bold text-gray-900 dark:text-white">
+                      {overview ? overview.sales_count : '-'}
+                    </p>
+                  </div>
+                  <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                    <h3 className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-1">Prosecna vrednost</h3>
+                    <p className="text-2xl font-bold text-gray-900 dark:text-white">
+                      {overview ? formatRSD(overview.avg_order_value) : '-'}
+                    </p>
+                  </div>
+                  <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                    <h3 className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-1">Jedinstveni kupci</h3>
+                    <p className="text-2xl font-bold text-gray-900 dark:text-white">
+                      {overview ? overview.unique_customers : '-'}
+                    </p>
+                  </div>
+                </div>
+
+                {/* Revenue Chart */}
+                <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6 mb-8">
+                  <h2 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">Prihod po periodu</h2>
+                  <div className="h-80">
+                    {mounted && revenueData.length > 0 ? (
+                      <ResponsiveContainer width="100%" height="100%">
+                        <LineChart data={revenueData}>
+                          <CartesianGrid strokeDasharray="3 3" stroke={darkMode ? '#374151' : '#e5e7eb'} />
+                          <XAxis
+                            dataKey="period"
+                            stroke={darkMode ? '#9ca3af' : '#6b7280'}
+                            tick={{ fontSize: 12 }}
+                          />
+                          <YAxis
+                            stroke={darkMode ? '#9ca3af' : '#6b7280'}
+                            tickFormatter={(value) => formatRSD(value)}
+                            tick={{ fontSize: 12 }}
+                          />
+                          <Tooltip
+                            // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                            formatter={((value: number) => [formatRSD(value), 'Prihod']) as any}
+                            contentStyle={{
+                              backgroundColor: darkMode ? '#1f2937' : '#ffffff',
+                              border: `1px solid ${darkMode ? '#374151' : '#e5e7eb'}`,
+                              borderRadius: '0.5rem',
+                              color: darkMode ? '#f3f4f6' : '#111827',
+                            }}
+                          />
+                          <Line
+                            type="monotone"
+                            dataKey="revenue"
+                            stroke="#3b82f6"
+                            strokeWidth={2}
+                            dot={{ fill: '#3b82f6', r: 4 }}
+                            activeDot={{ r: 6 }}
+                          />
+                        </LineChart>
+                      </ResponsiveContainer>
+                    ) : (
+                      <div className="flex items-center justify-center h-full text-gray-500 dark:text-gray-400">
+                        Nema podataka za prikaz
+                      </div>
+                    )}
+                  </div>
+                </div>
+
+                {/* Charts Row */}
+                <div className="grid grid-cols-1 lg:grid-cols-2 gap-8 mb-8">
+                  {/* Top Sellers */}
+                  <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                    <h2 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">Najprodavanije boje</h2>
+                    <div className="h-80">
+                      {mounted && topSellers.length > 0 ? (
+                        <ResponsiveContainer width="100%" height="100%">
+                          <BarChart data={topSellers} layout="vertical" margin={{ left: 20 }}>
+                            <CartesianGrid strokeDasharray="3 3" stroke={darkMode ? '#374151' : '#e5e7eb'} />
+                            <XAxis type="number" stroke={darkMode ? '#9ca3af' : '#6b7280'} tick={{ fontSize: 12 }} />
+                            <YAxis
+                              type="category"
+                              dataKey="boja"
+                              stroke={darkMode ? '#9ca3af' : '#6b7280'}
+                              tick={{ fontSize: 11 }}
+                              width={120}
+                              tickFormatter={(value: string, index: number) => {
+                                const seller = topSellers[index];
+                                return seller ? `${value} (${seller.tip})` : value;
+                              }}
+                            />
+                            <Tooltip
+                              // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                              formatter={((value: number) => [value, 'Kolicina']) as any}
+                              contentStyle={{
+                                backgroundColor: darkMode ? '#1f2937' : '#ffffff',
+                                border: `1px solid ${darkMode ? '#374151' : '#e5e7eb'}`,
+                                borderRadius: '0.5rem',
+                                color: darkMode ? '#f3f4f6' : '#111827',
+                              }}
+                            />
+                            <Bar dataKey="total_qty" fill="#8b5cf6" radius={[0, 4, 4, 0]} />
+                          </BarChart>
+                        </ResponsiveContainer>
+                      ) : (
+                        <div className="flex items-center justify-center h-full text-gray-500 dark:text-gray-400">
+                          Nema podataka za prikaz
+                        </div>
+                      )}
+                    </div>
+                  </div>
+
+                  {/* Type Breakdown */}
+                  <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                    <h2 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">Refill vs Spulna</h2>
+                    <div className="h-64">
+                      {mounted && typeBreakdown.length > 0 ? (
+                        <ResponsiveContainer width="100%" height="100%">
+                          <PieChart>
+                            <Pie
+                              data={typeBreakdown}
+                              dataKey="total_qty"
+                              nameKey="item_type"
+                              cx="50%"
+                              cy="50%"
+                              outerRadius={80}
+                              // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                              label={({ name, percent }: any) => `${name} (${((percent ?? 0) * 100).toFixed(0)}%)`}
+                            >
+                              {typeBreakdown.map((_, index) => (
+                                <Cell key={`cell-${index}`} fill={PIE_COLORS[index % PIE_COLORS.length]} />
+                              ))}
+                            </Pie>
+                            <Tooltip
+                              // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                              formatter={((value: number, name: string) => [
+                                `${value} kom | ${formatRSD(typeBreakdown.find(t => t.item_type === name)?.total_revenue ?? 0)}`,
+                                name,
+                              ]) as any}
+                              contentStyle={{
+                                backgroundColor: darkMode ? '#1f2937' : '#ffffff',
+                                border: `1px solid ${darkMode ? '#374151' : '#e5e7eb'}`,
+                                borderRadius: '0.5rem',
+                                color: darkMode ? '#f3f4f6' : '#111827',
+                              }}
+                            />
+                            <Legend />
+                          </PieChart>
+                        </ResponsiveContainer>
+                      ) : (
+                        <div className="flex items-center justify-center h-full text-gray-500 dark:text-gray-400">
+                          Nema podataka za prikaz
+                        </div>
+                      )}
+                    </div>
+                  </div>
+                </div>
+
+                {/* Inventory Alerts */}
+                <div className="bg-white dark:bg-gray-800 shadow rounded-lg p-6">
+                  <h2 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">Upozorenja za zalihe</h2>
+                  {inventoryAlerts.length > 0 ? (
+                    <div className="overflow-x-auto">
+                      <table className="min-w-full divide-y divide-gray-200 dark:divide-gray-700">
+                        <thead className="bg-gray-50 dark:bg-gray-900">
+                          <tr>
+                            <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Boja</th>
+                            <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Tip</th>
+                            <th className="px-4 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Finish</th>
+                            <th className="px-4 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Refill</th>
+                            <th className="px-4 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Spulna</th>
+                            <th className="px-4 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Kolicina</th>
+                            <th className="px-4 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Pros. dnevna prodaja</th>
+                            <th className="px-4 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">Dana do nestanka</th>
+                          </tr>
+                        </thead>
+                        <tbody className="divide-y divide-gray-200 dark:divide-gray-700">
+                          {inventoryAlerts.map((alert) => (
+                            <tr key={alert.id} className={getStockRowClass(alert)}>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100">{alert.boja}</td>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100">{alert.tip}</td>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100">{alert.finish}</td>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100 text-right">{alert.refill}</td>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100 text-right">{alert.spulna}</td>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100 text-right font-medium">{alert.kolicina}</td>
+                              <td className="px-4 py-3 text-sm text-gray-900 dark:text-gray-100 text-right">
+                                {alert.avg_daily_sales > 0 ? alert.avg_daily_sales.toFixed(1) : 'N/A'}
+                              </td>
+                              <td className="px-4 py-3 text-sm text-right font-medium">
+                                {alert.days_until_stockout !== null ? (
+                                  <span className={
+                                    alert.days_until_stockout < 7
+                                      ? 'text-red-600 dark:text-red-400'
+                                      : alert.days_until_stockout < 14
+                                      ? 'text-yellow-600 dark:text-yellow-400'
+                                      : 'text-green-600 dark:text-green-400'
+                                  }>
+                                    {Math.round(alert.days_until_stockout)}
+                                  </span>
+                                ) : (
+                                  <span className="text-gray-500 dark:text-gray-400">N/A</span>
+                                )}
+                              </td>
+                            </tr>
+                          ))}
+                        </tbody>
+                      </table>
+                    </div>
+                  ) : (
+                    <p className="text-gray-500 dark:text-gray-400">Sve zalihe su na zadovoljavajucem nivou.</p>
+                  )}
+                </div>
+              </>
+            )}
+          </main>
+        </div>
+      </div>
+    </div>
+  );
+}

app/upadaj/colors/page.tsx

@@ -5,6 +5,7 @@ import { useRouter } from 'next/navigation';
 import { colorService } from '@/src/services/api';
 import { bambuLabColors, getColorHex } from '@/src/data/bambuLabColorsComplete';
 import { BulkPriceEditor } from '@/src/components/BulkPriceEditor';
+import { AdminSidebar } from '@/src/components/AdminSidebar';
 import '@/src/styles/select.css';
 
 interface Color {
@@ -188,26 +189,7 @@ export default function ColorsManagement() {
   return (
     <div className="min-h-screen bg-gray-50 dark:bg-gray-900 transition-colors">
       <div className="flex">
-        {/* Sidebar */}
+        <AdminSidebar />
-        <div className="w-64 bg-white dark:bg-gray-800 shadow-lg h-screen">
-          <div className="p-6">
-            <h2 className="text-xl font-bold text-gray-900 dark:text-white mb-6">Admin Panel</h2>
-            <nav className="space-y-2">
-              <a
-                href="/dashboard"
-                className="block px-4 py-2 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
-              >
-                Filamenti
-              </a>
-              <a
-                href="/upadaj/colors"
-                className="block px-4 py-2 bg-blue-100 dark:bg-blue-900 text-blue-700 dark:text-blue-300 rounded"
-              >
-                Boje
-              </a>
-            </nav>
-          </div>
-        </div>
 
         {/* Main Content */}
         <div className="flex-1">
@@ -388,10 +370,24 @@ export default function ColorsManagement() {
       
       {/* Edit Modal */}
       {editingColor && (
-        <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 p-4">
+        <div
-          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl max-w-md w-full max-h-[90vh] overflow-auto">
+          className="fixed inset-0 bg-black/60 backdrop-blur-sm flex items-center justify-center z-50 p-4"
+          onClick={() => setEditingColor(null)}
+        >
+          <div
+            className="bg-white dark:bg-gray-800 rounded-xl shadow-2xl border border-gray-200 dark:border-gray-700 max-w-md w-full max-h-[90vh] overflow-auto"
+            onClick={(e) => e.stopPropagation()}
+          >
+            <div className="flex justify-between items-center p-6 pb-0">
+              <h3 className="text-xl font-bold text-gray-900 dark:text-white">Izmeni boju</h3>
+              <button
+                onClick={() => setEditingColor(null)}
+                className="text-gray-400 hover:text-gray-600 dark:hover:text-gray-300 text-2xl leading-none"
+              >
+                &times;
+              </button>
+            </div>
             <div className="p-6">
-              <h3 className="text-xl font-bold mb-4 text-gray-900 dark:text-white">Izmeni boju</h3>
               <ColorForm
                 color={editingColor}
                 onSave={(color) => {
@@ -495,7 +491,7 @@ function ColorForm({
               readOnly={isBambuLabColor}
               pattern="^#[0-9A-Fa-f]{6}$"
               placeholder="#000000"
-              className={`flex-1 px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100 focus:outline-none focus:ring-2 focus:ring-blue-500 ${isBambuLabColor ? 'bg-gray-100 dark:bg-gray-900 cursor-not-allowed' : ''}`}
+              className={`flex-1 px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md text-gray-900 dark:text-gray-100 focus:outline-none focus:ring-2 focus:ring-blue-500 ${isBambuLabColor ? 'bg-gray-100 dark:bg-gray-900 cursor-not-allowed' : 'bg-white dark:bg-gray-700'}`}
             />
           </div>
           {isBambuLabColor && (

app/upadaj/customers/page.tsx

@@ -0,0 +1,634 @@
+'use client'
+
+import { useState, useEffect, useCallback } from 'react';
+import { useRouter } from 'next/navigation';
+import { customerService } from '@/src/services/api';
+import { Customer, Sale } from '@/src/types/sales';
+import { AdminSidebar } from '@/src/components/AdminSidebar';
+
+interface CustomerWithSales extends Customer {
+  sales?: Sale[];
+  total_purchases?: number;
+}
+
+export default function CustomersManagement() {
+  const router = useRouter();
+  const [customers, setCustomers] = useState<CustomerWithSales[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+  const [searchTerm, setSearchTerm] = useState('');
+  const [expandedCustomerId, setExpandedCustomerId] = useState<string | null>(null);
+  const [expandedSales, setExpandedSales] = useState<Sale[]>([]);
+  const [loadingSales, setLoadingSales] = useState(false);
+  const [editingCustomer, setEditingCustomer] = useState<Customer | null>(null);
+  const [editForm, setEditForm] = useState<Partial<Customer>>({});
+  const [saving, setSaving] = useState(false);
+  const [darkMode, setDarkMode] = useState(false);
+  const [mounted, setMounted] = useState(false);
+  const [showAddModal, setShowAddModal] = useState(false);
+  const [addForm, setAddForm] = useState({ name: '', phone: '', city: '', notes: '' });
+  const [addError, setAddError] = useState('');
+  const [addSaving, setAddSaving] = useState(false);
+
+  // Initialize dark mode
+  useEffect(() => {
+    setMounted(true);
+    const saved = localStorage.getItem('darkMode');
+    if (saved !== null) {
+      setDarkMode(JSON.parse(saved));
+    } else {
+      setDarkMode(true);
+    }
+  }, []);
+
+  useEffect(() => {
+    if (!mounted) return;
+    localStorage.setItem('darkMode', JSON.stringify(darkMode));
+    if (darkMode) {
+      document.documentElement.classList.add('dark');
+    } else {
+      document.documentElement.classList.remove('dark');
+    }
+  }, [darkMode, mounted]);
+
+  // Check authentication
+  useEffect(() => {
+    if (!mounted) return;
+    const token = localStorage.getItem('authToken');
+    const expiry = localStorage.getItem('tokenExpiry');
+    if (!token || !expiry || Date.now() > parseInt(expiry)) {
+      window.location.href = '/upadaj';
+    }
+  }, [mounted]);
+
+  // Fetch customers
+  const fetchCustomers = useCallback(async () => {
+    try {
+      setLoading(true);
+      const data = await customerService.getAll();
+      setCustomers(data);
+    } catch (err) {
+      setError('Greska pri ucitavanju kupaca');
+      console.error('Fetch error:', err);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    fetchCustomers();
+  }, [fetchCustomers]);
+
+  // Search customers
+  const filteredCustomers = customers.filter((customer) => {
+    if (!searchTerm) return true;
+    const term = searchTerm.toLowerCase();
+    return (
+      customer.name.toLowerCase().includes(term) ||
+      (customer.phone && customer.phone.toLowerCase().includes(term)) ||
+      (customer.city && customer.city.toLowerCase().includes(term))
+    );
+  });
+
+  // Toggle expanded row to show purchase history
+  const handleToggleExpand = async (customerId: string) => {
+    if (expandedCustomerId === customerId) {
+      setExpandedCustomerId(null);
+      setExpandedSales([]);
+      return;
+    }
+
+    setExpandedCustomerId(customerId);
+    setLoadingSales(true);
+    try {
+      const data = await customerService.getById(customerId);
+      setExpandedSales(data.sales || []);
+    } catch (err) {
+      console.error('Error fetching customer sales:', err);
+      setExpandedSales([]);
+    } finally {
+      setLoadingSales(false);
+    }
+  };
+
+  // Edit customer
+  const handleStartEdit = (customer: Customer) => {
+    setEditingCustomer(customer);
+    setEditForm({
+      name: customer.name,
+      phone: customer.phone || '',
+      city: customer.city || '',
+      notes: customer.notes || '',
+    });
+  };
+
+  const handleCancelEdit = () => {
+    setEditingCustomer(null);
+    setEditForm({});
+  };
+
+  const handleSaveEdit = async () => {
+    if (!editingCustomer) return;
+    setSaving(true);
+    try {
+      await customerService.update(editingCustomer.id, editForm);
+      setEditingCustomer(null);
+      setEditForm({});
+      await fetchCustomers();
+    } catch (err) {
+      setError('Greska pri cuvanju izmena');
+      console.error('Save error:', err);
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  const handleAddCustomer = async () => {
+    if (!addForm.name.trim()) {
+      setAddError('Ime je obavezno');
+      return;
+    }
+    setAddSaving(true);
+    setAddError('');
+    try {
+      await customerService.create({
+        name: addForm.name.trim(),
+        phone: addForm.phone.trim() || undefined,
+        city: addForm.city.trim() || undefined,
+        notes: addForm.notes.trim() || undefined,
+      });
+      setShowAddModal(false);
+      setAddForm({ name: '', phone: '', city: '', notes: '' });
+      await fetchCustomers();
+    } catch (err: unknown) {
+      const error = err as { response?: { data?: { code?: string } } };
+      if (error.response?.data?.code === '23505') {
+        setAddError('Kupac sa ovim brojem telefona vec postoji');
+      } else {
+        setAddError('Greska pri dodavanju kupca');
+      }
+    } finally {
+      setAddSaving(false);
+    }
+  };
+
+  const handleLogout = () => {
+    localStorage.removeItem('authToken');
+    localStorage.removeItem('tokenExpiry');
+    router.push('/upadaj');
+  };
+
+  const formatDate = (dateStr?: string) => {
+    if (!dateStr) return '-';
+    return new Date(dateStr).toLocaleDateString('sr-Latn-RS', {
+      day: '2-digit',
+      month: '2-digit',
+      year: 'numeric',
+    });
+  };
+
+  const formatCurrency = (amount: number) => {
+    return new Intl.NumberFormat('sr-Latn-RS', {
+      style: 'decimal',
+      minimumFractionDigits: 0,
+      maximumFractionDigits: 0,
+    }).format(amount) + ' RSD';
+  };
+
+  if (loading) {
+    return (
+      <div className="min-h-screen bg-gray-50 dark:bg-gray-900 flex items-center justify-center">
+        <div className="text-gray-600 dark:text-gray-400">Ucitavanje...</div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="min-h-screen bg-gray-50 dark:bg-gray-900 transition-colors">
+      <div className="flex">
+        <AdminSidebar />
+
+        {/* Main Content */}
+        <div className="flex-1">
+          <header className="bg-white dark:bg-gray-800 shadow transition-colors">
+            <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-6">
+              <div className="flex justify-between items-center">
+                <div className="flex items-center gap-4">
+                  <img
+                    src="/logo.png"
+                    alt="Filamenteka"
+                    className="h-20 sm:h-32 w-auto drop-shadow-lg"
+                  />
+                  <h1 className="text-3xl font-bold text-gray-900 dark:text-white">
+                    Upravljanje kupcima
+                  </h1>
+                </div>
+                <div className="flex gap-4 flex-wrap">
+                  <button
+                    onClick={() => router.push('/')}
+                    className="px-4 py-2 bg-blue-500 text-white rounded hover:bg-blue-600"
+                  >
+                    Nazad na sajt
+                  </button>
+                  {mounted && (
+                    <button
+                      onClick={() => setDarkMode(!darkMode)}
+                      className="px-4 py-2 bg-gray-200 dark:bg-gray-700 text-gray-800 dark:text-gray-200 rounded hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+                      title={darkMode ? 'Svetla tema' : 'Tamna tema'}
+                    >
+                      {darkMode ? '\u2600' : '\u263D'}
+                    </button>
+                  )}
+                  <button
+                    onClick={handleLogout}
+                    className="px-4 py-2 bg-red-500 text-white rounded hover:bg-red-600"
+                  >
+                    Odjava
+                  </button>
+                </div>
+              </div>
+            </div>
+          </header>
+
+          <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+            {error && (
+              <div className="mb-4 p-4 bg-red-50 dark:bg-red-900/20 text-red-800 dark:text-red-400 rounded">
+                {error}
+                <button
+                  onClick={() => setError('')}
+                  className="ml-4 text-red-600 dark:text-red-300 underline text-sm"
+                >
+                  Zatvori
+                </button>
+              </div>
+            )}
+
+            {/* Search bar + Add button */}
+            <div className="mb-6 flex items-center gap-4">
+              <input
+                type="text"
+                placeholder="Pretrazi kupce..."
+                value={searchTerm}
+                onChange={(e) => setSearchTerm(e.target.value)}
+                className="w-full max-w-md px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white placeholder-gray-400 dark:placeholder-gray-500 focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+              />
+              <button
+                onClick={() => setShowAddModal(true)}
+                className="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 whitespace-nowrap font-medium"
+              >
+                + Dodaj kupca
+              </button>
+            </div>
+
+            {/* Customer count */}
+            <p className="text-sm text-gray-500 dark:text-gray-400 mb-4">
+              Ukupno kupaca: {filteredCustomers.length}
+            </p>
+
+            {/* Customer table */}
+            <div className="bg-white dark:bg-gray-800 rounded-lg shadow overflow-hidden">
+              <table className="min-w-full divide-y divide-gray-200 dark:divide-gray-700">
+                <thead className="bg-gray-50 dark:bg-gray-700">
+                  <tr>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider">
+                      Ime
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider">
+                      Telefon
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider">
+                      Grad
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider">
+                      Beleske
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider">
+                      Datum registracije
+                    </th>
+                    <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase tracking-wider">
+                      Akcije
+                    </th>
+                  </tr>
+                </thead>
+                <tbody className="bg-white dark:bg-gray-800 divide-y divide-gray-200 dark:divide-gray-700">
+                  {filteredCustomers.length === 0 ? (
+                    <tr>
+                      <td
+                        colSpan={6}
+                        className="px-6 py-8 text-center text-gray-500 dark:text-gray-400"
+                      >
+                        {searchTerm ? 'Nema rezultata pretrage' : 'Nema registrovanih kupaca'}
+                      </td>
+                    </tr>
+                  ) : (
+                    filteredCustomers.map((customer) => (
+                      <>
+                        <tr
+                          key={customer.id}
+                          className="hover:bg-gray-50 dark:hover:bg-gray-700/50 transition-colors"
+                        >
+                          {editingCustomer?.id === customer.id ? (
+                            <>
+                              <td className="px-6 py-4">
+                                <input
+                                  type="text"
+                                  value={editForm.name || ''}
+                                  onChange={(e) =>
+                                    setEditForm({ ...editForm, name: e.target.value })
+                                  }
+                                  className="w-full px-2 py-1 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm"
+                                />
+                              </td>
+                              <td className="px-6 py-4">
+                                <input
+                                  type="text"
+                                  value={editForm.phone || ''}
+                                  onChange={(e) =>
+                                    setEditForm({ ...editForm, phone: e.target.value })
+                                  }
+                                  className="w-full px-2 py-1 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm"
+                                />
+                              </td>
+                              <td className="px-6 py-4">
+                                <input
+                                  type="text"
+                                  value={editForm.city || ''}
+                                  onChange={(e) =>
+                                    setEditForm({ ...editForm, city: e.target.value })
+                                  }
+                                  className="w-full px-2 py-1 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm"
+                                />
+                              </td>
+                              <td className="px-6 py-4">
+                                <textarea
+                                  value={editForm.notes || ''}
+                                  onChange={(e) =>
+                                    setEditForm({ ...editForm, notes: e.target.value })
+                                  }
+                                  rows={2}
+                                  placeholder="npr. stampa figurice, obicno crna..."
+                                  className="w-full px-2 py-1 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm"
+                                />
+                              </td>
+                              <td className="px-6 py-4 text-sm text-gray-500 dark:text-gray-400">
+                                {formatDate(customer.created_at)}
+                              </td>
+                              <td className="px-6 py-4">
+                                <div className="flex gap-2">
+                                  <button
+                                    onClick={handleSaveEdit}
+                                    disabled={saving}
+                                    className="px-3 py-1 bg-green-500 text-white text-sm rounded hover:bg-green-600 disabled:opacity-50"
+                                  >
+                                    {saving ? '...' : 'Sacuvaj'}
+                                  </button>
+                                  <button
+                                    onClick={handleCancelEdit}
+                                    className="px-3 py-1 bg-gray-300 dark:bg-gray-600 text-gray-700 dark:text-gray-200 text-sm rounded hover:bg-gray-400 dark:hover:bg-gray-500"
+                                  >
+                                    Otkazi
+                                  </button>
+                                </div>
+                              </td>
+                            </>
+                          ) : (
+                            <>
+                              <td className="px-6 py-4 text-sm font-medium text-gray-900 dark:text-white">
+                                {customer.name}
+                              </td>
+                              <td className="px-6 py-4 text-sm text-gray-500 dark:text-gray-400">
+                                {customer.phone || '-'}
+                              </td>
+                              <td className="px-6 py-4 text-sm text-gray-500 dark:text-gray-400">
+                                {customer.city || '-'}
+                              </td>
+                              <td className="px-6 py-4 text-sm text-gray-500 dark:text-gray-400 max-w-xs whitespace-pre-wrap">
+                                {customer.notes || <span className="text-gray-400 dark:text-gray-600 italic">Nema beleski</span>}
+                              </td>
+                              <td className="px-6 py-4 text-sm text-gray-500 dark:text-gray-400">
+                                {formatDate(customer.created_at)}
+                              </td>
+                              <td className="px-6 py-4">
+                                <div className="flex gap-2">
+                                  <button
+                                    onClick={() => handleStartEdit(customer)}
+                                    className="px-3 py-1 bg-blue-500 text-white text-sm rounded hover:bg-blue-600"
+                                  >
+                                    Izmeni
+                                  </button>
+                                  <button
+                                    onClick={() => handleToggleExpand(customer.id)}
+                                    className={`px-3 py-1 text-sm rounded ${
+                                      expandedCustomerId === customer.id
+                                        ? 'bg-indigo-600 text-white hover:bg-indigo-700'
+                                        : 'bg-indigo-100 dark:bg-indigo-900 text-indigo-700 dark:text-indigo-300 hover:bg-indigo-200 dark:hover:bg-indigo-800'
+                                    }`}
+                                  >
+                                    Istorija kupovina
+                                  </button>
+                                </div>
+                              </td>
+                            </>
+                          )}
+                        </tr>
+
+                        {/* Expanded purchase history */}
+                        {expandedCustomerId === customer.id && (
+                          <tr key={`${customer.id}-sales`}>
+                            <td
+                              colSpan={6}
+                              className="px-6 py-4 bg-gray-50 dark:bg-gray-900/50"
+                            >
+                              <div className="ml-4">
+                                <h4 className="text-sm font-semibold text-gray-700 dark:text-gray-300 mb-3">
+                                  Istorija kupovina - {customer.name}
+                                </h4>
+                                {loadingSales ? (
+                                  <p className="text-sm text-gray-500 dark:text-gray-400">
+                                    Ucitavanje...
+                                  </p>
+                                ) : expandedSales.length === 0 ? (
+                                  <p className="text-sm text-gray-500 dark:text-gray-400">
+                                    Nema evidentiranih kupovina
+                                  </p>
+                                ) : (
+                                  <table className="min-w-full divide-y divide-gray-200 dark:divide-gray-700 rounded overflow-hidden">
+                                    <thead className="bg-gray-100 dark:bg-gray-700">
+                                      <tr>
+                                        <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase">
+                                          ID
+                                        </th>
+                                        <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase">
+                                          Datum
+                                        </th>
+                                        <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase">
+                                          Stavke
+                                        </th>
+                                        <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase">
+                                          Iznos
+                                        </th>
+                                        <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-300 uppercase">
+                                          Napomena
+                                        </th>
+                                      </tr>
+                                    </thead>
+                                    <tbody className="bg-white dark:bg-gray-800 divide-y divide-gray-200 dark:divide-gray-700">
+                                      {expandedSales.map((sale) => (
+                                        <tr key={sale.id}>
+                                          <td className="px-4 py-2 text-sm text-gray-600 dark:text-gray-400 font-mono">
+                                            {sale.id.substring(0, 8)}...
+                                          </td>
+                                          <td className="px-4 py-2 text-sm text-gray-600 dark:text-gray-400">
+                                            {formatDate(sale.created_at)}
+                                          </td>
+                                          <td className="px-4 py-2 text-sm text-gray-600 dark:text-gray-400">
+                                            {sale.item_count ?? '-'}
+                                          </td>
+                                          <td className="px-4 py-2 text-sm text-gray-900 dark:text-white font-medium">
+                                            {formatCurrency(sale.total_amount)}
+                                          </td>
+                                          <td className="px-4 py-2 text-sm text-gray-500 dark:text-gray-400">
+                                            {sale.notes || '-'}
+                                          </td>
+                                        </tr>
+                                      ))}
+                                    </tbody>
+                                    <tfoot className="bg-gray-50 dark:bg-gray-700/50">
+                                      <tr>
+                                        <td
+                                          colSpan={3}
+                                          className="px-4 py-2 text-sm font-semibold text-gray-700 dark:text-gray-300 text-right"
+                                        >
+                                          Ukupno ({expandedSales.length} kupovina):
+                                        </td>
+                                        <td className="px-4 py-2 text-sm font-bold text-gray-900 dark:text-white">
+                                          {formatCurrency(
+                                            expandedSales.reduce(
+                                              (sum, sale) => sum + sale.total_amount,
+                                              0
+                                            )
+                                          )}
+                                        </td>
+                                        <td />
+                                      </tr>
+                                    </tfoot>
+                                  </table>
+                                )}
+                              </div>
+                            </td>
+                          </tr>
+                        )}
+                      </>
+                    ))
+                  )}
+                </tbody>
+              </table>
+            </div>
+          </main>
+        </div>
+      </div>
+
+      {/* Add Customer Modal */}
+      {showAddModal && (
+        <div
+          className="fixed inset-0 bg-black/50 flex items-center justify-center z-50"
+          onClick={() => setShowAddModal(false)}
+        >
+          <div
+            className="bg-white dark:bg-gray-800 rounded-lg shadow-xl w-full max-w-md mx-4 p-6"
+            onClick={(e) => e.stopPropagation()}
+          >
+            <div className="flex justify-between items-center mb-4">
+              <h2 className="text-xl font-bold text-gray-900 dark:text-white">
+                Dodaj kupca
+              </h2>
+              <button
+                onClick={() => setShowAddModal(false)}
+                className="text-gray-400 hover:text-gray-600 dark:hover:text-gray-300 text-2xl leading-none"
+              >
+                &times;
+              </button>
+            </div>
+
+            {addError && (
+              <div className="mb-4 p-3 bg-red-50 dark:bg-red-900/20 text-red-800 dark:text-red-400 rounded text-sm">
+                {addError}
+              </div>
+            )}
+
+            <div className="space-y-4">
+              <div>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Ime *
+                </label>
+                <input
+                  type="text"
+                  value={addForm.name}
+                  onChange={(e) => setAddForm({ ...addForm, name: e.target.value })}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-green-500 focus:border-transparent"
+                  placeholder="Ime i prezime"
+                  autoFocus
+                />
+              </div>
+
+              <div>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Telefon
+                </label>
+                <input
+                  type="text"
+                  value={addForm.phone}
+                  onChange={(e) => setAddForm({ ...addForm, phone: e.target.value })}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-green-500 focus:border-transparent"
+                  placeholder="Broj telefona"
+                />
+              </div>
+
+              <div>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Grad
+                </label>
+                <input
+                  type="text"
+                  value={addForm.city}
+                  onChange={(e) => setAddForm({ ...addForm, city: e.target.value })}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-green-500 focus:border-transparent"
+                  placeholder="Grad"
+                />
+              </div>
+
+              <div>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Napomena
+                </label>
+                <textarea
+                  value={addForm.notes}
+                  onChange={(e) => setAddForm({ ...addForm, notes: e.target.value })}
+                  rows={3}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-green-500 focus:border-transparent"
+                  placeholder="npr. stampa figurice, obicno crna..."
+                />
+              </div>
+            </div>
+
+            <div className="flex justify-end gap-3 mt-6">
+              <button
+                onClick={() => setShowAddModal(false)}
+                className="px-4 py-2 bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded-lg hover:bg-gray-300 dark:hover:bg-gray-600"
+              >
+                Otkazi
+              </button>
+              <button
+                onClick={handleAddCustomer}
+                disabled={addSaving}
+                className="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 disabled:opacity-50 font-medium"
+              >
+                {addSaving ? 'Cuvanje...' : 'Dodaj'}
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

app/upadaj/page.tsx

@@ -12,6 +12,15 @@ export default function AdminLogin() {
   const [error, setError] = useState('');
   const [loading, setLoading] = useState(false);
 
+  // Redirect to dashboard if already authenticated
+  useEffect(() => {
+    const token = localStorage.getItem('authToken');
+    const expiry = localStorage.getItem('tokenExpiry');
+    if (token && expiry && Date.now() < parseInt(expiry)) {
+      window.location.href = '/dashboard';
+    }
+  }, []);
+
   // Set dark mode by default
   useEffect(() => {
     document.documentElement.classList.add('dark');

app/upadaj/requests/page.tsx

@@ -4,6 +4,7 @@ import React, { useState, useEffect } from 'react';
 import { useRouter } from 'next/navigation';
 import { colorRequestService } from '@/src/services/api';
 import Link from 'next/link';
+import { AdminSidebar } from '@/src/components/AdminSidebar';
 
 interface ColorRequest {
   id: string;
@@ -120,23 +121,11 @@ export default function ColorRequestsAdmin() {
 
   return (
     <div className="min-h-screen bg-gray-50 dark:bg-gray-900">
-      <div className="container mx-auto px-4 py-8">
+      <div className="flex">
+        <AdminSidebar />
+        <div className="flex-1 p-8">
         <div className="flex justify-between items-center mb-6">
           <h1 className="text-3xl font-bold text-gray-800 dark:text-gray-100">Zahtevi za Boje</h1>
-          <div className="space-x-4">
-            <Link
-              href="/dashboard"
-              className="px-4 py-2 bg-gray-600 text-white rounded hover:bg-gray-700"
-            >
-              Inventar
-            </Link>
-            <Link
-              href="/upadaj/colors"
-              className="px-4 py-2 bg-gray-600 text-white rounded hover:bg-gray-700"
-            >
-              Boje
-            </Link>
-          </div>
         </div>
 
         {error && (
@@ -354,6 +343,7 @@ export default function ColorRequestsAdmin() {
             </div>
           </div>
         </div>
+        </div>
       </div>
     </div>
   );

app/upadaj/sales/page.tsx

@@ -0,0 +1,827 @@
+'use client'
+
+import { useState, useEffect, useCallback, useRef } from 'react';
+import { saleService, customerService, filamentService, colorService } from '@/src/services/api';
+import { Customer, Sale, SaleItem, CreateSaleRequest } from '@/src/types/sales';
+import { Filament } from '@/src/types/filament';
+import { AdminSidebar } from '@/src/components/AdminSidebar';
+
+interface LineItem {
+  filament_id: string;
+  item_type: 'refill' | 'spulna';
+  quantity: number;
+}
+
+export default function SalesPage() {
+  const [mounted, setMounted] = useState(false);
+  const [darkMode, setDarkMode] = useState(false);
+
+  // Sales list state
+  const [sales, setSales] = useState<Sale[]>([]);
+  const [totalSales, setTotalSales] = useState(0);
+  const [page, setPage] = useState(1);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+
+  // Modal state
+  const [showNewSaleModal, setShowNewSaleModal] = useState(false);
+  const [showDetailModal, setShowDetailModal] = useState(false);
+  const [selectedSale, setSelectedSale] = useState<Sale | null>(null);
+  const [detailLoading, setDetailLoading] = useState(false);
+
+  const LIMIT = 50;
+
+  // Dark mode init
+  useEffect(() => {
+    setMounted(true);
+    const saved = localStorage.getItem('darkMode');
+    setDarkMode(saved !== null ? JSON.parse(saved) : true);
+  }, []);
+
+  useEffect(() => {
+    if (!mounted) return;
+    localStorage.setItem('darkMode', JSON.stringify(darkMode));
+    if (darkMode) document.documentElement.classList.add('dark');
+    else document.documentElement.classList.remove('dark');
+  }, [darkMode, mounted]);
+
+  // Auth check
+  useEffect(() => {
+    if (!mounted) return;
+    const token = localStorage.getItem('authToken');
+    const expiry = localStorage.getItem('tokenExpiry');
+    if (!token || !expiry || Date.now() > parseInt(expiry)) {
+      window.location.href = '/upadaj';
+    }
+  }, [mounted]);
+
+  // Fetch sales
+  const fetchSales = useCallback(async () => {
+    try {
+      setLoading(true);
+      setError('');
+      const data = await saleService.getAll(page, LIMIT);
+      setSales(data.sales);
+      setTotalSales(data.total);
+    } catch {
+      setError('Greska pri ucitavanju prodaja');
+    } finally {
+      setLoading(false);
+    }
+  }, [page]);
+
+  useEffect(() => {
+    if (!mounted) return;
+    fetchSales();
+  }, [mounted, fetchSales]);
+
+  const totalPages = Math.ceil(totalSales / LIMIT);
+
+  const handleViewDetail = async (sale: Sale) => {
+    try {
+      setDetailLoading(true);
+      setShowDetailModal(true);
+      const detail = await saleService.getById(sale.id);
+      setSelectedSale(detail);
+    } catch {
+      setError('Greska pri ucitavanju detalja prodaje');
+      setShowDetailModal(false);
+    } finally {
+      setDetailLoading(false);
+    }
+  };
+
+  const handleDeleteSale = async (id: string) => {
+    if (!window.confirm('Da li ste sigurni da zelite da obrisete ovu prodaju?')) return;
+    try {
+      await saleService.delete(id);
+      setShowDetailModal(false);
+      setSelectedSale(null);
+      fetchSales();
+    } catch {
+      setError('Greska pri brisanju prodaje');
+    }
+  };
+
+  const formatDate = (dateStr?: string) => {
+    if (!dateStr) return '-';
+    const date = new Date(dateStr);
+    return date.toLocaleDateString('sr-RS', {
+      day: '2-digit',
+      month: '2-digit',
+      year: 'numeric',
+    });
+  };
+
+  const formatPrice = (amount: number) => {
+    return amount.toLocaleString('sr-RS') + ' RSD';
+  };
+
+  if (!mounted) return null;
+
+  return (
+    <div className="min-h-screen bg-gray-50 dark:bg-gray-900 flex">
+      <AdminSidebar />
+
+      {/* Main Content */}
+      <div className="flex-1 p-8">
+        <div className="flex justify-between items-center mb-6">
+          <h1 className="text-2xl font-bold text-gray-900 dark:text-white">Prodaja</h1>
+          <div className="flex items-center gap-4">
+            <button
+              onClick={() => setDarkMode(!darkMode)}
+              className="px-3 py-2 text-sm bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors"
+            >
+              {darkMode ? 'Svetli mod' : 'Tamni mod'}
+            </button>
+            <button
+              onClick={() => setShowNewSaleModal(true)}
+              className="px-4 py-2 bg-green-600 text-white rounded hover:bg-green-700 transition-colors font-medium"
+            >
+              Nova prodaja
+            </button>
+          </div>
+        </div>
+
+        {error && (
+          <div className="mb-4 p-3 bg-red-100 dark:bg-red-900/30 border border-red-300 dark:border-red-700 text-red-700 dark:text-red-400 rounded">
+            {error}
+          </div>
+        )}
+
+        {/* Sales Table */}
+        <div className="bg-white dark:bg-gray-800 rounded-lg shadow overflow-hidden">
+          {loading ? (
+            <div className="p-8 text-center text-gray-500 dark:text-gray-400">Ucitavanje...</div>
+          ) : sales.length === 0 ? (
+            <div className="p-8 text-center text-gray-500 dark:text-gray-400">Nema prodaja</div>
+          ) : (
+            <table className="w-full">
+              <thead className="bg-gray-50 dark:bg-gray-700">
+                <tr>
+                  <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+                    Datum
+                  </th>
+                  <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+                    Ime kupca
+                  </th>
+                  <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+                    Stavki
+                  </th>
+                  <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+                    Cena
+                  </th>
+                  <th className="px-6 py-3 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wider">
+                    Akcije
+                  </th>
+                </tr>
+              </thead>
+              <tbody className="divide-y divide-gray-200 dark:divide-gray-700">
+                {sales.map((sale) => (
+                  <tr key={sale.id} className="hover:bg-gray-50 dark:hover:bg-gray-700/50 transition-colors">
+                    <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-900 dark:text-white">
+                      {formatDate(sale.created_at)}
+                    </td>
+                    <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-900 dark:text-white">
+                      {sale.customer_name || '-'}
+                    </td>
+                    <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-600 dark:text-gray-400">
+                      {sale.item_count ?? 0}
+                    </td>
+                    <td className="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900 dark:text-white">
+                      {formatPrice(sale.total_amount)}
+                    </td>
+                    <td className="px-6 py-4 whitespace-nowrap text-right text-sm space-x-2">
+                      <button
+                        onClick={() => handleViewDetail(sale)}
+                        className="px-3 py-1 bg-blue-600 text-white rounded hover:bg-blue-700 transition-colors"
+                      >
+                        Detalji
+                      </button>
+                      <button
+                        onClick={() => handleDeleteSale(sale.id)}
+                        className="px-3 py-1 bg-red-600 text-white rounded hover:bg-red-700 transition-colors"
+                      >
+                        Obrisi
+                      </button>
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          )}
+        </div>
+
+        {/* Pagination */}
+        {totalPages > 1 && (
+          <div className="mt-4 flex justify-center items-center gap-2">
+            <button
+              onClick={() => setPage((p) => Math.max(1, p - 1))}
+              disabled={page === 1}
+              className="px-3 py-1 bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded hover:bg-gray-300 dark:hover:bg-gray-600 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+            >
+              Prethodna
+            </button>
+            <span className="text-sm text-gray-600 dark:text-gray-400">
+              Strana {page} od {totalPages}
+            </span>
+            <button
+              onClick={() => setPage((p) => Math.min(totalPages, p + 1))}
+              disabled={page === totalPages}
+              className="px-3 py-1 bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded hover:bg-gray-300 dark:hover:bg-gray-600 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+            >
+              Sledeca
+            </button>
+          </div>
+        )}
+      </div>
+
+      {/* New Sale Modal */}
+      {showNewSaleModal && (
+        <NewSaleModal
+          onClose={() => setShowNewSaleModal(false)}
+          onCreated={() => {
+            setShowNewSaleModal(false);
+            fetchSales();
+          }}
+          formatPrice={formatPrice}
+        />
+      )}
+
+      {/* Sale Detail Modal */}
+      {showDetailModal && (
+        <SaleDetailModal
+          sale={selectedSale}
+          loading={detailLoading}
+          onClose={() => {
+            setShowDetailModal(false);
+            setSelectedSale(null);
+          }}
+          onDelete={(id) => handleDeleteSale(id)}
+          formatPrice={formatPrice}
+          formatDate={formatDate}
+        />
+      )}
+    </div>
+  );
+}
+
+// --- NewSaleModal ---
+
+function NewSaleModal({
+  onClose,
+  onCreated,
+  formatPrice,
+}: {
+  onClose: () => void;
+  onCreated: () => void;
+  formatPrice: (n: number) => string;
+}) {
+  const [customerName, setCustomerName] = useState('');
+  const [customerPhone, setCustomerPhone] = useState('');
+  const [customerCity, setCustomerCity] = useState('');
+  const [customerNotes, setCustomerNotes] = useState('');
+  const [notes, setNotes] = useState('');
+  const [items, setItems] = useState<LineItem[]>([{ filament_id: '', item_type: 'refill', quantity: 1 }]);
+  const [filaments, setFilaments] = useState<Filament[]>([]);
+  const [colorPrices, setColorPrices] = useState<Record<string, { cena_refill: number; cena_spulna: number }>>({});
+  const [customerSuggestions, setCustomerSuggestions] = useState<Customer[]>([]);
+  const [showSuggestions, setShowSuggestions] = useState(false);
+  const [submitting, setSubmitting] = useState(false);
+  const [submitError, setSubmitError] = useState('');
+  const searchTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
+  const suggestionsRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    const loadData = async () => {
+      try {
+        const [filamentData, colorData] = await Promise.all([
+          filamentService.getAll(),
+          colorService.getAll(),
+        ]);
+        setFilaments(filamentData);
+        const priceMap: Record<string, { cena_refill: number; cena_spulna: number }> = {};
+        for (const c of colorData) {
+          priceMap[c.name] = { cena_refill: c.cena_refill || 3499, cena_spulna: c.cena_spulna || 3999 };
+        }
+        setColorPrices(priceMap);
+      } catch {
+        // Data failed to load
+      }
+    };
+    loadData();
+  }, []);
+
+  // Close suggestions on outside click
+  useEffect(() => {
+    const handler = (e: MouseEvent) => {
+      if (suggestionsRef.current && !suggestionsRef.current.contains(e.target as Node)) {
+        setShowSuggestions(false);
+      }
+    };
+    document.addEventListener('mousedown', handler);
+    return () => document.removeEventListener('mousedown', handler);
+  }, []);
+
+  const handleCustomerSearch = (value: string) => {
+    setCustomerName(value);
+    if (searchTimeout.current) clearTimeout(searchTimeout.current);
+    if (value.length < 2) {
+      setCustomerSuggestions([]);
+      setShowSuggestions(false);
+      return;
+    }
+    searchTimeout.current = setTimeout(async () => {
+      try {
+        const results = await customerService.search(value);
+        setCustomerSuggestions(results);
+        setShowSuggestions(results.length > 0);
+      } catch {
+        setCustomerSuggestions([]);
+        setShowSuggestions(false);
+      }
+    }, 300);
+  };
+
+  const selectCustomer = (customer: Customer) => {
+    setCustomerName(customer.name);
+    setCustomerPhone(customer.phone || '');
+    setCustomerCity(customer.city || '');
+    setCustomerNotes(customer.notes || '');
+    setShowSuggestions(false);
+  };
+
+  const getFilamentById = (id: string): Filament | undefined => {
+    return filaments.find((f) => String(f.id) === String(id));
+  };
+
+  const getFilamentPrice = (filament: Filament, type: 'refill' | 'spulna'): number => {
+    const prices = colorPrices[filament.boja];
+    const base = type === 'refill' ? (prices?.cena_refill || 3499) : (prices?.cena_spulna || 3999);
+    if (filament.sale_active && filament.sale_percentage) {
+      return Math.round(base * (1 - filament.sale_percentage / 100));
+    }
+    return base;
+  };
+
+  const getItemPrice = (item: LineItem): number => {
+    const filament = getFilamentById(item.filament_id);
+    if (!filament) return 0;
+    return getFilamentPrice(filament, item.item_type) * item.quantity;
+  };
+
+  const totalAmount = items.reduce((sum, item) => sum + getItemPrice(item), 0);
+
+  const getAvailableStock = (filament: Filament, type: 'refill' | 'spulna'): number => {
+    return type === 'refill' ? filament.refill : filament.spulna;
+  };
+
+  const updateItem = (index: number, updates: Partial<LineItem>) => {
+    setItems((prev) => {
+      const next = [...prev];
+      next[index] = { ...next[index], ...updates };
+      return next;
+    });
+  };
+
+  const removeItem = (index: number) => {
+    if (items.length <= 1) return;
+    setItems((prev) => prev.filter((_, i) => i !== index));
+  };
+
+  const addItem = () => {
+    setItems((prev) => [...prev, { filament_id: '', item_type: 'refill', quantity: 1 }]);
+  };
+
+  const handleSubmit = async () => {
+    if (!customerName.trim()) {
+      setSubmitError('Ime kupca je obavezno');
+      return;
+    }
+    const validItems = items.filter((item) => item.filament_id !== '' && item.quantity > 0);
+    if (validItems.length === 0) {
+      setSubmitError('Dodajte bar jednu stavku');
+      return;
+    }
+
+    // Validate stock
+    for (const item of validItems) {
+      const filament = getFilamentById(item.filament_id);
+      if (!filament) {
+        setSubmitError('Nevalidan filament');
+        return;
+      }
+      const available = getAvailableStock(filament, item.item_type);
+      if (item.quantity > available) {
+        setSubmitError(
+          `Nedovoljno zaliha za ${filament.boja} ${filament.tip} (${item.item_type}): dostupno ${available}, trazeno ${item.quantity}`
+        );
+        return;
+      }
+    }
+
+    const payload: CreateSaleRequest = {
+      customer: {
+        name: customerName.trim(),
+        phone: customerPhone.trim() || undefined,
+        city: customerCity.trim() || undefined,
+        notes: customerNotes.trim() || undefined,
+      },
+      items: validItems.map((item) => ({
+        filament_id: item.filament_id,
+        item_type: item.item_type,
+        quantity: item.quantity,
+      })),
+      notes: notes.trim() || undefined,
+    };
+
+    try {
+      setSubmitting(true);
+      setSubmitError('');
+      await saleService.create(payload);
+      onCreated();
+    } catch {
+      setSubmitError('Greska pri kreiranju prodaje');
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50">
+      <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl w-full max-w-3xl max-h-[90vh] overflow-y-auto m-4">
+        <div className="p-6">
+          <div className="flex justify-between items-center mb-6">
+            <h2 className="text-xl font-bold text-gray-900 dark:text-white">Nova prodaja</h2>
+            <button
+              onClick={onClose}
+              className="text-gray-400 hover:text-gray-600 dark:hover:text-gray-200 text-2xl leading-none"
+            >
+              &times;
+            </button>
+          </div>
+
+          {submitError && (
+            <div className="mb-4 p-3 bg-red-100 dark:bg-red-900/30 border border-red-300 dark:border-red-700 text-red-700 dark:text-red-400 rounded text-sm">
+              {submitError}
+            </div>
+          )}
+
+          {/* Customer Section */}
+          <div className="mb-6">
+            <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-3">Kupac</h3>
+            <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+              <div className="relative" ref={suggestionsRef}>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Ime kupca *
+                </label>
+                <input
+                  type="text"
+                  value={customerName}
+                  onChange={(e) => handleCustomerSearch(e.target.value)}
+                  onFocus={() => customerSuggestions.length > 0 && setShowSuggestions(true)}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                  placeholder="Ime i prezime"
+                />
+                {showSuggestions && customerSuggestions.length > 0 && (
+                  <div className="absolute z-10 w-full mt-1 bg-white dark:bg-gray-700 border border-gray-300 dark:border-gray-600 rounded shadow-lg max-h-40 overflow-y-auto">
+                    {customerSuggestions.map((c) => (
+                      <button
+                        key={c.id}
+                        onClick={() => selectCustomer(c)}
+                        className="w-full text-left px-3 py-2 hover:bg-gray-100 dark:hover:bg-gray-600 text-sm text-gray-900 dark:text-white"
+                      >
+                        <span className="font-medium">{c.name}</span>
+                        {c.city && (
+                          <span className="text-gray-500 dark:text-gray-400 ml-2">({c.city})</span>
+                        )}
+                      </button>
+                    ))}
+                  </div>
+                )}
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Telefon
+                </label>
+                <input
+                  type="text"
+                  value={customerPhone}
+                  onChange={(e) => setCustomerPhone(e.target.value)}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                  placeholder="Broj telefona"
+                />
+              </div>
+              <div>
+                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+                  Grad
+                </label>
+                <input
+                  type="text"
+                  value={customerCity}
+                  onChange={(e) => setCustomerCity(e.target.value)}
+                  className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                  placeholder="Grad"
+                />
+              </div>
+            </div>
+            <div className="mt-3">
+              <div className="text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Beleske o kupcu</div>
+              <textarea
+                value={customerNotes}
+                onChange={(e) => setCustomerNotes(e.target.value)}
+                className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                placeholder="npr. stampa figurice, obicno koristi crnu..."
+                rows={2}
+              />
+            </div>
+          </div>
+
+          {/* Items Section */}
+          <div className="mb-6">
+            <div className="flex justify-between items-center mb-3">
+              <h3 className="text-lg font-semibold text-gray-900 dark:text-white">Stavke</h3>
+              <button
+                onClick={addItem}
+                className="px-3 py-1 bg-green-600 text-white text-sm rounded hover:bg-green-700 transition-colors"
+              >
+                Dodaj stavku
+              </button>
+            </div>
+            <div className="space-y-3">
+              {items.map((item, index) => {
+                const filament = getFilamentById(item.filament_id);
+                const available = filament ? getAvailableStock(filament, item.item_type) : 0;
+                const itemPrice = getItemPrice(item);
+
+                return (
+                  <div
+                    key={index}
+                    className="flex flex-wrap gap-3 items-end p-3 bg-gray-50 dark:bg-gray-700/50 rounded border border-gray-200 dark:border-gray-600"
+                  >
+                    <div className="flex-1 min-w-[200px]">
+                      <label className="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">
+                        Filament
+                      </label>
+                      <select
+                        value={item.filament_id}
+                        onChange={(e) => updateItem(index, { filament_id: e.target.value })}
+                        className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                      >
+                        <option value={0}>-- Izaberite filament --</option>
+                        {filaments
+                          .filter((f) => f.kolicina > 0)
+                          .map((f) => (
+                            <option key={f.id} value={f.id}>
+                              {f.boja} - {f.tip} {f.finish} (refill: {f.refill}, spulna: {f.spulna})
+                            </option>
+                          ))}
+                      </select>
+                    </div>
+                    <div className="w-32">
+                      <label className="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">
+                        Tip
+                      </label>
+                      <select
+                        value={item.item_type}
+                        onChange={(e) =>
+                          updateItem(index, {
+                            item_type: e.target.value as 'refill' | 'spulna',
+                            quantity: 1,
+                          })
+                        }
+                        className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                      >
+                        <option value="refill">Refill</option>
+                        <option value="spulna">Spulna</option>
+                      </select>
+                    </div>
+                    <div className="w-24">
+                      <label className="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">
+                        Kolicina {filament ? `(max ${available})` : ''}
+                      </label>
+                      <input
+                        type="number"
+                        min={1}
+                        max={available || undefined}
+                        value={item.quantity}
+                        onChange={(e) => updateItem(index, { quantity: Math.max(1, Number(e.target.value)) })}
+                        className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white text-sm focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+                      />
+                    </div>
+                    <div className="w-32 text-right">
+                      <label className="block text-xs font-medium text-gray-600 dark:text-gray-400 mb-1">
+                        Cena
+                      </label>
+                      <div className="px-3 py-2 text-sm font-medium text-gray-900 dark:text-white">
+                        {itemPrice > 0 ? formatPrice(itemPrice) : '-'}
+                      </div>
+                    </div>
+                    <div>
+                      <button
+                        onClick={() => removeItem(index)}
+                        disabled={items.length <= 1}
+                        className="px-3 py-2 bg-red-600 text-white text-sm rounded hover:bg-red-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+                      >
+                        Ukloni
+                      </button>
+                    </div>
+                  </div>
+                );
+              })}
+            </div>
+          </div>
+
+          {/* Total */}
+          <div className="mb-6 p-4 bg-gray-100 dark:bg-gray-700 rounded flex justify-between items-center">
+            <span className="text-lg font-semibold text-gray-900 dark:text-white">Ukupno:</span>
+            <span className="text-xl font-bold text-gray-900 dark:text-white">{formatPrice(totalAmount)}</span>
+          </div>
+
+          {/* Notes */}
+          <div className="mb-6">
+            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
+              Beleske
+            </label>
+            <textarea
+              value={notes}
+              onChange={(e) => setNotes(e.target.value)}
+              rows={3}
+              className="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:ring-2 focus:ring-blue-500 focus:border-blue-500"
+              placeholder="Napomena za prodaju..."
+            />
+          </div>
+
+          {/* Actions */}
+          <div className="flex justify-end gap-3">
+            <button
+              onClick={onClose}
+              className="px-4 py-2 bg-gray-200 dark:bg-gray-600 text-gray-700 dark:text-gray-300 rounded hover:bg-gray-300 dark:hover:bg-gray-500 transition-colors"
+            >
+              Otkazi
+            </button>
+            <button
+              onClick={handleSubmit}
+              disabled={submitting}
+              className="px-4 py-2 bg-green-600 text-white rounded hover:bg-green-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors font-medium"
+            >
+              {submitting ? 'Cuvanje...' : 'Sacuvaj'}
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+// --- SaleDetailModal ---
+
+function SaleDetailModal({
+  sale,
+  loading,
+  onClose,
+  onDelete,
+  formatPrice,
+  formatDate,
+}: {
+  sale: Sale | null;
+  loading: boolean;
+  onClose: () => void;
+  onDelete: (id: string) => void;
+  formatPrice: (n: number) => string;
+  formatDate: (d?: string) => string;
+}) {
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50">
+      <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl w-full max-w-2xl max-h-[90vh] overflow-y-auto m-4">
+        <div className="p-6">
+          <div className="flex justify-between items-center mb-6">
+            <h2 className="text-xl font-bold text-gray-900 dark:text-white">Detalji prodaje</h2>
+            <button
+              onClick={onClose}
+              className="text-gray-400 hover:text-gray-600 dark:hover:text-gray-200 text-2xl leading-none"
+            >
+              &times;
+            </button>
+          </div>
+
+          {loading ? (
+            <div className="p-8 text-center text-gray-500 dark:text-gray-400">Ucitavanje...</div>
+          ) : !sale ? (
+            <div className="p-8 text-center text-gray-500 dark:text-gray-400">Prodaja nije pronadjena</div>
+          ) : (
+            <>
+              {/* Customer Info */}
+              <div className="mb-6">
+                <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-3">Kupac</h3>
+                <div className="grid grid-cols-2 gap-4 text-sm">
+                  <div>
+                    <span className="text-gray-500 dark:text-gray-400">Ime: </span>
+                    <span className="text-gray-900 dark:text-white font-medium">
+                      {sale.customer_name || '-'}
+                    </span>
+                  </div>
+                  <div>
+                    <span className="text-gray-500 dark:text-gray-400">Telefon: </span>
+                    <span className="text-gray-900 dark:text-white">
+                      {sale.customer_phone || '-'}
+                    </span>
+                  </div>
+                  <div>
+                    <span className="text-gray-500 dark:text-gray-400">Datum: </span>
+                    <span className="text-gray-900 dark:text-white">{formatDate(sale.created_at)}</span>
+                  </div>
+                </div>
+              </div>
+
+              {/* Items */}
+              <div className="mb-6">
+                <h3 className="text-lg font-semibold text-gray-900 dark:text-white mb-3">Stavke</h3>
+                {sale.items && sale.items.length > 0 ? (
+                  <div className="border border-gray-200 dark:border-gray-600 rounded overflow-hidden">
+                    <table className="w-full">
+                      <thead className="bg-gray-50 dark:bg-gray-700">
+                        <tr>
+                          <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">
+                            Filament
+                          </th>
+                          <th className="px-4 py-2 text-left text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">
+                            Tip
+                          </th>
+                          <th className="px-4 py-2 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">
+                            Kolicina
+                          </th>
+                          <th className="px-4 py-2 text-right text-xs font-medium text-gray-500 dark:text-gray-400 uppercase">
+                            Cena
+                          </th>
+                        </tr>
+                      </thead>
+                      <tbody className="divide-y divide-gray-200 dark:divide-gray-600">
+                        {sale.items.map((item: SaleItem) => (
+                          <tr key={item.id}>
+                            <td className="px-4 py-2 text-sm text-gray-900 dark:text-white">
+                              {item.filament_boja} - {item.filament_tip} {item.filament_finish}
+                            </td>
+                            <td className="px-4 py-2 text-sm text-gray-600 dark:text-gray-400 capitalize">
+                              {item.item_type}
+                            </td>
+                            <td className="px-4 py-2 text-sm text-gray-900 dark:text-white text-right">
+                              {item.quantity}
+                            </td>
+                            <td className="px-4 py-2 text-sm text-gray-900 dark:text-white text-right font-medium">
+                              {formatPrice(item.unit_price * item.quantity)}
+                            </td>
+                          </tr>
+                        ))}
+                      </tbody>
+                    </table>
+                  </div>
+                ) : (
+                  <p className="text-sm text-gray-500 dark:text-gray-400">Nema stavki</p>
+                )}
+              </div>
+
+              {/* Total */}
+              <div className="mb-6 p-4 bg-gray-100 dark:bg-gray-700 rounded flex justify-between items-center">
+                <span className="text-lg font-semibold text-gray-900 dark:text-white">Ukupno:</span>
+                <span className="text-xl font-bold text-gray-900 dark:text-white">
+                  {formatPrice(sale.total_amount)}
+                </span>
+              </div>
+
+              {/* Notes */}
+              {sale.notes && (
+                <div className="mb-6">
+                  <h3 className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-1">Beleske</h3>
+                  <p className="text-sm text-gray-900 dark:text-white bg-gray-50 dark:bg-gray-700/50 p-3 rounded">
+                    {sale.notes}
+                  </p>
+                </div>
+              )}
+
+              {/* Actions */}
+              <div className="flex justify-between">
+                <button
+                  onClick={() => {
+                    if (window.confirm('Da li ste sigurni da zelite da obrisete ovu prodaju?')) {
+                      onDelete(sale.id);
+                    }
+                  }}
+                  className="px-4 py-2 bg-red-600 text-white rounded hover:bg-red-700 transition-colors"
+                >
+                  Obrisi prodaju
+                </button>
+                <button
+                  onClick={onClose}
+                  className="px-4 py-2 bg-gray-200 dark:bg-gray-600 text-gray-700 dark:text-gray-300 rounded hover:bg-gray-300 dark:hover:bg-gray-500 transition-colors"
+                >
+                  Zatvori
+                </button>
+              </div>
+            </>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}

database/migrations/021_add_customers_table.sql

@@ -0,0 +1,16 @@
+-- Add customers table for tracking buyers
+CREATE EXTENSION IF NOT EXISTS "pgcrypto";
+
+CREATE TABLE customers (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL,
+    phone VARCHAR(50),
+    city VARCHAR(255),
+    notes TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Phone is the natural dedup key
+CREATE UNIQUE INDEX idx_customers_phone ON customers (phone) WHERE phone IS NOT NULL;
+CREATE INDEX idx_customers_name ON customers (name);

database/migrations/022_add_sales_tables.sql

@@ -0,0 +1,24 @@
+-- Add sales and sale_items tables for tracking transactions
+CREATE TABLE sales (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    customer_id UUID REFERENCES customers(id) ON DELETE SET NULL,
+    total_amount INTEGER NOT NULL DEFAULT 0,
+    notes TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE sale_items (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    sale_id UUID NOT NULL REFERENCES sales(id) ON DELETE CASCADE,
+    filament_id UUID NOT NULL REFERENCES filaments(id) ON DELETE RESTRICT,
+    item_type VARCHAR(10) NOT NULL CHECK (item_type IN ('refill', 'spulna')),
+    quantity INTEGER NOT NULL DEFAULT 1 CHECK (quantity > 0),
+    unit_price INTEGER NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX idx_sales_customer_id ON sales (customer_id);
+CREATE INDEX idx_sales_created_at ON sales (created_at);
+CREATE INDEX idx_sale_items_sale_id ON sale_items (sale_id);
+CREATE INDEX idx_sale_items_filament_id ON sale_items (filament_id);

database/migrations/023_cleanup_fake_colors_add_missing.sql

@@ -0,0 +1,100 @@
+-- Migration 023: Clean up fake colors and add missing real Bambu Lab colors
+-- Source of truth: bambu_lab_filaments.numbers spreadsheet
+
+BEGIN;
+
+-- 1. Rename typo: IronGray Metallic → Iron Gray Metallic (FK cascades to filaments)
+UPDATE colors SET name = 'Iron Gray Metallic' WHERE name = 'IronGray Metallic';
+
+-- 2. Delete 67 fake colors not used by any filament
+DELETE FROM colors WHERE name IN (
+  'Coton Candy Cloud',
+  'Glow in the Dark Blue',
+  'Glow in the Dark Green',
+  'Grey',
+  'Indingo Purple',
+  'Ivory',
+  'Ivory White',
+  'Light Blue',
+  'Light Green',
+  'Matte Black',
+  'Matte Blue',
+  'Matte Brown',
+  'Matte Coral',
+  'Matte Green',
+  'Matte Grey',
+  'Matte Lime',
+  'Matte Mint',
+  'Matte Navy',
+  'Matte Orange',
+  'Matte Pink',
+  'Matte Purple',
+  'Matte White',
+  'Matte Yellow',
+  'Metal Bronze',
+  'Metal Copper',
+  'Metal Gold',
+  'Metal Grey',
+  'Metal Silver',
+  'Mint Green',
+  'Natural',
+  'Navy Blue',
+  'Nebulane',
+  'Silk Black',
+  'Silk Blue',
+  'Silk Bronze',
+  'Silk Copper',
+  'Silk Emerald',
+  'Silk Gold',
+  'Silk Green',
+  'Silk Jade',
+  'Silk Orange',
+  'Silk Pearl',
+  'Silk Pink',
+  'Silk Purple',
+  'Silk Red',
+  'Silk Rose Gold',
+  'Silk Ruby',
+  'Silk Sapphire',
+  'Silk Silver',
+  'Silk White',
+  'Sky Blue',
+  'Sparkle Blue',
+  'Sparkle Gold',
+  'Sparkle Green',
+  'Sparkle Purple',
+  'Sparkle Red',
+  'Sparkle Silver',
+  'Support G',
+  'Support White',
+  'Translucent Tea',
+  'Transparent Blue',
+  'Transparent Green',
+  'Transparent Orange',
+  'Transparent Purple',
+  'Transparent Red',
+  'Transparent Yellow',
+  'Violet'
+);
+
+-- 3. Add 17 missing real Bambu Lab colors from spreadsheet
+INSERT INTO colors (name, hex) VALUES
+  ('Aurora Purple', '#285BB7'),
+  ('Candy Green', '#408619'),
+  ('Candy Red', '#BB3A2E'),
+  ('Crystal Blue', '#5BC0EB'),
+  ('Flesh', '#E8C4A2'),
+  ('Forest Green', '#415520'),
+  ('Grape Jelly', '#6B2D75'),
+  ('Lake Blue', '#4672E4'),
+  ('Lime', '#C5ED48'),
+  ('Mystic Magenta', '#720062'),
+  ('Nebulae', '#424379'),
+  ('Neon Green', '#ABFF1E'),
+  ('Phantom Blue', '#00629B'),
+  ('Quicksilver', '#A6A9AA'),
+  ('Rose Gold', '#B29593'),
+  ('Translucent Teal', '#008080')
+ON CONFLICT (name) DO NOTHING;
+
+COMMIT;

database/schema.sql

@@ -4,7 +4,7 @@
 CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
 
 -- Colors table
-CREATE TABLE colors (
+CREATE TABLE IF NOT EXISTS colors (
   id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
   name VARCHAR(100) NOT NULL UNIQUE,
   hex VARCHAR(7) NOT NULL,
@@ -15,7 +15,7 @@ CREATE TABLE colors (
 );
 
 -- Filaments table
-CREATE TABLE filaments (
+CREATE TABLE IF NOT EXISTS filaments (
   id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
   tip VARCHAR(50) NOT NULL,
   finish VARCHAR(50) NOT NULL,
@@ -32,9 +32,9 @@ CREATE TABLE filaments (
 );
 
 -- Create indexes for better performance
-CREATE INDEX idx_filaments_tip ON filaments(tip);
+CREATE INDEX IF NOT EXISTS idx_filaments_tip ON filaments(tip);
-CREATE INDEX idx_filaments_boja ON filaments(boja);
+CREATE INDEX IF NOT EXISTS idx_filaments_boja ON filaments(boja);
-CREATE INDEX idx_filaments_created_at ON filaments(created_at);
+CREATE INDEX IF NOT EXISTS idx_filaments_created_at ON filaments(created_at);
 
 -- Create updated_at trigger function
 CREATE OR REPLACE FUNCTION update_updated_at_column()
@@ -46,10 +46,12 @@ END;
 $$ language 'plpgsql';
 
 -- Apply trigger to filaments table
+DROP TRIGGER IF EXISTS update_filaments_updated_at ON filaments;
 CREATE TRIGGER update_filaments_updated_at BEFORE UPDATE
     ON filaments FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
 
 -- Apply trigger to colors table
+DROP TRIGGER IF EXISTS update_colors_updated_at ON colors;
 CREATE TRIGGER update_colors_updated_at BEFORE UPDATE
     ON colors FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
 

package-lock.json

@@ -15,7 +15,8 @@
         "next": "^16.1.6",
         "pg": "^8.16.2",
         "react": "^19.2.4",
-        "react-dom": "^19.2.4"
+        "react-dom": "^19.2.4",
+        "recharts": "^3.7.0"
       },
       "devDependencies": {
         "@testing-library/jest-dom": "^6.9.1",
@@ -2672,6 +2673,42 @@
         "url": "https://opencollective.com/pkgr"
       }
     },
+    "node_modules/@reduxjs/toolkit": {
+      "version": "2.11.2",
+      "resolved": "https://registry.npmjs.org/@reduxjs/toolkit/-/toolkit-2.11.2.tgz",
+      "integrity": "sha512-Kd6kAHTA6/nUpp8mySPqj3en3dm0tdMIgbttnQ1xFMVpufoj+ADi8pXLBsd4xzTRHQa7t/Jv8W5UnCuW4kuWMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@standard-schema/spec": "^1.0.0",
+        "@standard-schema/utils": "^0.3.0",
+        "immer": "^11.0.0",
+        "redux": "^5.0.1",
+        "redux-thunk": "^3.1.0",
+        "reselect": "^5.1.0"
+      },
+      "peerDependencies": {
+        "react": "^16.9.0 || ^17.0.0 || ^18 || ^19",
+        "react-redux": "^7.2.1 || ^8.1.3 || ^9.0.0"
+      },
+      "peerDependenciesMeta": {
+        "react": {
+          "optional": true
+        },
+        "react-redux": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@reduxjs/toolkit/node_modules/immer": {
+      "version": "11.1.4",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-11.1.4.tgz",
+      "integrity": "sha512-XREFCPo6ksxVzP4E0ekD5aMdf8WMwmdNaz6vuvxgI40UaEiu6q3p8X52aU6GdyvLY3XXX/8R7JOTXStz/nBbRw==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/immer"
+      }
+    },
     "node_modules/@rolldown/pluginutils": {
       "version": "1.0.0-beta.27",
       "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-beta.27.tgz",
@@ -3056,6 +3093,18 @@
         "@sinonjs/commons": "^3.0.1"
       }
     },
+    "node_modules/@standard-schema/spec": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz",
+      "integrity": "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==",
+      "license": "MIT"
+    },
+    "node_modules/@standard-schema/utils": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@standard-schema/utils/-/utils-0.3.0.tgz",
+      "integrity": "sha512-e7Mew686owMaPJVNNLs55PUvgz371nKgwsc4vxE49zsODpJEnxgxRo2y/OKrqueavXgZNMDVj3DdHFlaSAeU8g==",
+      "license": "MIT"
+    },
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+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.3.3.tgz",
+      "integrity": "sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg==",
+      "license": "MIT"
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.15",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
@@ -9724,6 +10092,15 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
+      "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -9746,6 +10123,28 @@
         "node": ">=10.12.0"
       }
     },
+    "node_modules/victory-vendor": {
+      "version": "37.3.6",
+      "resolved": "https://registry.npmjs.org/victory-vendor/-/victory-vendor-37.3.6.tgz",
+      "integrity": "sha512-SbPDPdDBYp+5MJHhBCAyI7wKM3d5ivekigc2Dk2s7pgbZ9wIgIBYGVw4zGHBml/qTFbexrofXW6Gu4noGxrOwQ==",
+      "license": "MIT AND ISC",
+      "dependencies": {
+        "@types/d3-array": "^3.0.3",
+        "@types/d3-ease": "^3.0.0",
+        "@types/d3-interpolate": "^3.0.1",
+        "@types/d3-scale": "^4.0.2",
+        "@types/d3-shape": "^3.1.0",
+        "@types/d3-time": "^3.0.0",
+        "@types/d3-timer": "^3.0.0",
+        "d3-array": "^3.1.6",
+        "d3-ease": "^3.0.1",
+        "d3-interpolate": "^3.0.1",
+        "d3-scale": "^4.0.2",
+        "d3-shape": "^3.1.0",
+        "d3-time": "^3.0.0",
+        "d3-timer": "^3.0.1"
+      }
+    },
     "node_modules/vite": {
       "version": "5.4.21",
       "resolved": "https://registry.npmjs.org/vite/-/vite-5.4.21.tgz",

package.json

@@ -23,7 +23,8 @@
     "next": "^16.1.6",
     "pg": "^8.16.2",
     "react": "^19.2.4",
-    "react-dom": "^19.2.4"
+    "react-dom": "^19.2.4",
+    "recharts": "^3.7.0"
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^6.9.1",

src/components/AdminSidebar.tsx

@@ -0,0 +1,42 @@
+'use client'
+
+import { usePathname } from 'next/navigation'
+
+const navItems = [
+  { href: '/dashboard', label: 'Filamenti' },
+  { href: '/upadaj/colors', label: 'Boje' },
+  { href: '/upadaj/requests', label: 'Zahtevi za boje' },
+  { href: '/upadaj/sales', label: 'Prodaja' },
+  { href: '/upadaj/customers', label: 'Kupci' },
+  { href: '/upadaj/analytics', label: 'Analitika' },
+]
+
+export function AdminSidebar() {
+  const pathname = usePathname()
+
+  return (
+    <div className="w-64 bg-white dark:bg-gray-800 shadow-lg h-screen sticky top-0 flex-shrink-0">
+      <div className="p-6">
+        <h2 className="text-xl font-bold text-gray-900 dark:text-white mb-6">Admin Panel</h2>
+        <nav className="space-y-2">
+          {navItems.map((item) => {
+            const isActive = pathname === item.href
+            return (
+              <a
+                key={item.href}
+                href={item.href}
+                className={`block px-4 py-2 rounded ${
+                  isActive
+                    ? 'bg-blue-100 dark:bg-blue-900 text-blue-700 dark:text-blue-300'
+                    : 'text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700'
+                }`}
+              >
+                {item.label}
+              </a>
+            )
+          })}
+        </nav>
+      </div>
+    </div>
+  )
+}

src/components/EnhancedFilters.tsx

@@ -1,6 +1,8 @@
-import React from 'react';
+import React, { useMemo } from 'react';
 import '@/src/styles/select.css';
 import { trackEvent } from './MatomoAnalytics';
+import { getFinishesForMaterial, getAllFinishes, getMaterialOptions } from '@/src/data/bambuLabCatalog';
+import { Filament } from '@/src/types/filament';
 
 interface EnhancedFiltersProps {
   filters: {
@@ -8,22 +10,74 @@ interface EnhancedFiltersProps {
     finish: string;
     color: string;
   };
-  onFilterChange: (filters: any) => void;
+  onFilterChange: (filters: { material: string; finish: string; color: string }) => void;
   uniqueValues: {
     materials: string[];
     finishes: string[];
     colors: string[];
   };
+  inventoryFilaments?: Filament[];
 }
 
 export const EnhancedFilters: React.FC<EnhancedFiltersProps> = ({
   filters,
   onFilterChange,
-  uniqueValues 
+  uniqueValues,
+  inventoryFilaments = []
 }) => {
-  // Check if any filters are active
   const hasActiveFilters = filters.material || filters.finish || filters.color;
 
+  // Catalog-aware material list (static from catalog)
+  const materialOptions = useMemo(() => getMaterialOptions(), []);
+
+  // Finish options: conditional on selected material
+  const finishOptions = useMemo(() => {
+    const inStock = inventoryFilaments.filter(f => f.kolicina > 0);
+    if (filters.material) {
+      // Show finishes from catalog for this material, but only if they exist in inventory
+      const catalogFinishes = getFinishesForMaterial(filters.material);
+      const inventoryFinishes = new Set(
+        inStock.filter(f => f.tip === filters.material).map(f => f.finish)
+      );
+      return catalogFinishes.filter(f => inventoryFinishes.has(f));
+    }
+    // No material selected: show all finishes from inventory
+    if (inStock.length > 0) {
+      return [...new Set(inStock.map(f => f.finish))].sort();
+    }
+    return getAllFinishes();
+  }, [filters.material, inventoryFilaments]);
+
+  // Color options: conditional on selected material + finish
+  const colorOptions = useMemo(() => {
+    const inStock = inventoryFilaments.filter(f => f.kolicina > 0);
+    let filtered = inStock;
+    if (filters.material) {
+      filtered = filtered.filter(f => f.tip === filters.material);
+    }
+    if (filters.finish) {
+      filtered = filtered.filter(f => f.finish === filters.finish);
+    }
+    return [...new Set(filtered.map(f => f.boja))].sort();
+  }, [filters.material, filters.finish, inventoryFilaments]);
+
+  const handleMaterialChange = (value: string) => {
+    // Reset finish and color when material changes
+    onFilterChange({ material: value, finish: '', color: '' });
+    trackEvent('Filter', 'Material', value || 'All');
+  };
+
+  const handleFinishChange = (value: string) => {
+    // Reset color when finish changes
+    onFilterChange({ ...filters, finish: value, color: '' });
+    trackEvent('Filter', 'Finish', value || 'All');
+  };
+
+  const handleColorChange = (value: string) => {
+    onFilterChange({ ...filters, color: value });
+    trackEvent('Filter', 'Color', value || 'All');
+  };
+
   return (
     <div className="p-4 bg-gray-50 dark:bg-gray-800 rounded-lg">
       {/* Filters Grid */}
@@ -35,26 +89,15 @@ export const EnhancedFilters: React.FC<EnhancedFiltersProps> = ({
           </label>
           <select
             value={filters.material}
-            onChange={(e) => {
+            onChange={(e) => handleMaterialChange(e.target.value)}
-              onFilterChange({ ...filters, material: e.target.value });
-              trackEvent('Filter', 'Material', e.target.value || 'All');
-            }}
             className="custom-select w-full px-3 py-2 border border-gray-300 dark:border-gray-600
                      bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100
                      rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500"
           >
             <option value="">Svi materijali</option>
-            <option value="ABS">ABS</option>
+            {materialOptions.map(mat => (
-            <option value="ASA">ASA</option>
+              <option key={mat} value={mat}>{mat}</option>
-            <option value="PA6">PA6</option>
+            ))}
-            <option value="PAHT">PAHT</option>
-            <option value="PC">PC</option>
-            <option value="PET">PET</option>
-            <option value="PETG">PETG</option>
-            <option value="PLA">PLA</option>
-            <option value="PPA">PPA</option>
-            <option value="PPS">PPS</option>
-            <option value="TPU">TPU</option>
           </select>
         </div>
 
@@ -65,35 +108,15 @@ export const EnhancedFilters: React.FC<EnhancedFiltersProps> = ({
           </label>
           <select
             value={filters.finish}
-            onChange={(e) => {
+            onChange={(e) => handleFinishChange(e.target.value)}
-              onFilterChange({ ...filters, finish: e.target.value });
-              trackEvent('Filter', 'Finish', e.target.value || 'All');
-            }}
             className="custom-select w-full px-3 py-2 border border-gray-300 dark:border-gray-600
                      bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100
                      rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500"
           >
             <option value="">Svi finish tipovi</option>
-            <option value="85A">85A</option>
+            {finishOptions.map(finish => (
-            <option value="90A">90A</option>
+              <option key={finish} value={finish}>{finish}</option>
-            <option value="95A HF">95A HF</option>
+            ))}
-            <option value="Aero">Aero</option>
-            <option value="Basic">Basic</option>
-            <option value="Basic Gradient">Basic Gradient</option>
-            <option value="CF">CF</option>
-            <option value="FR">FR</option>
-            <option value="Galaxy">Galaxy</option>
-            <option value="GF">GF</option>
-            <option value="Glow">Glow</option>
-            <option value="HF">HF</option>
-            <option value="Marble">Marble</option>
-            <option value="Matte">Matte</option>
-            <option value="Metal">Metal</option>
-            <option value="Silk Multi-Color">Silk Multi-Color</option>
-            <option value="Silk+">Silk+</option>
-            <option value="Sparkle">Sparkle</option>
-            <option value="Translucent">Translucent</option>
-            <option value="Wood">Wood</option>
           </select>
         </div>
 
@@ -104,16 +127,13 @@ export const EnhancedFilters: React.FC<EnhancedFiltersProps> = ({
           </label>
           <select
             value={filters.color}
-            onChange={(e) => {
+            onChange={(e) => handleColorChange(e.target.value)}
-              onFilterChange({ ...filters, color: e.target.value });
-              trackEvent('Filter', 'Color', e.target.value || 'All');
-            }}
             className="custom-select w-full px-3 py-2 border border-gray-300 dark:border-gray-600
                      bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100
                      rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500"
           >
             <option value="">Sve boje</option>
-            {uniqueValues.colors.map(color => (
+            {colorOptions.map(color => (
               <option key={color} value={color}>{color}</option>
             ))}
           </select>

src/components/FilamentTableV2.tsx

@@ -145,6 +145,7 @@ const FilamentTableV2: React.FC<FilamentTableV2Props> = ({ filaments }) => {
         filters={filters}
         onFilterChange={setFilters}
         uniqueValues={uniqueValues}
+        inventoryFilaments={filaments}
       />
 
 

src/data/bambuLabCatalog.ts

@@ -0,0 +1,407 @@
+// Master Bambu Lab product catalog — single source of truth
+// Material → Finish → Color[] with refill/spool availability
+
+export interface CatalogColorEntry {
+  name: string;
+  refill: boolean;
+  spool: boolean;
+}
+
+export interface CatalogFinish {
+  colors: CatalogColorEntry[];
+}
+
+export type BambuLabCatalog = Record<string, Record<string, CatalogFinish>>;
+
+export const BAMBU_LAB_CATALOG: BambuLabCatalog = {
+  PLA: {
+    Basic: {
+      colors: [
+        { name: 'Jade White', refill: true, spool: true },
+        { name: 'Black', refill: true, spool: true },
+        { name: 'Red', refill: true, spool: true },
+        { name: 'Bambu Green', refill: true, spool: true },
+        { name: 'Blue', refill: true, spool: true },
+        { name: 'Scarlet Red', refill: true, spool: true },
+        { name: 'Lemon Yellow', refill: true, spool: true },
+        { name: 'Cyan', refill: true, spool: true },
+        { name: 'Sakura Pink', refill: true, spool: true },
+        { name: 'Cobalt Blue', refill: true, spool: true },
+        { name: 'Mistletoe Green', refill: true, spool: true },
+        { name: 'Dark Red', refill: true, spool: true },
+        { name: 'Hot Pink', refill: true, spool: true },
+        { name: 'Lavender', refill: true, spool: true },
+        { name: 'Light Blue', refill: true, spool: true },
+        { name: 'Sky Blue', refill: true, spool: true },
+        { name: 'Sunflower Yellow', refill: true, spool: true },
+        { name: 'Pumpkin Orange', refill: true, spool: true },
+        { name: 'Lime', refill: true, spool: true },
+        { name: 'Blue Grey', refill: true, spool: false },
+        { name: 'Beige', refill: true, spool: false },
+        { name: 'Light Gray', refill: true, spool: false },
+        { name: 'Yellow', refill: true, spool: false },
+        { name: 'Orange', refill: true, spool: false },
+        { name: 'Gold', refill: true, spool: false },
+        { name: 'Bright Green', refill: true, spool: false },
+        { name: 'Pink', refill: true, spool: false },
+        { name: 'Magenta', refill: true, spool: false },
+        { name: 'Maroon Red', refill: true, spool: false },
+        { name: 'Purple', refill: true, spool: false },
+        { name: 'Turquoise', refill: true, spool: false },
+        { name: 'Brown', refill: true, spool: false },
+        { name: 'Bronze', refill: true, spool: false },
+        { name: 'Silver', refill: true, spool: false },
+        { name: 'Dark Gray', refill: true, spool: false },
+      ],
+    },
+    'Basic Gradient': {
+      colors: [
+        { name: 'Neon City', refill: false, spool: true },
+        { name: 'Midnight Blaze', refill: false, spool: true },
+        { name: 'South Beach', refill: false, spool: true },
+        { name: 'Arctic Whisper', refill: false, spool: true },
+        { name: 'Cotton Candy Cloud', refill: false, spool: true },
+        { name: 'Ocean to Meadow', refill: false, spool: true },
+        { name: 'Solar Breeze', refill: false, spool: true },
+        { name: 'Velvet Eclipse', refill: false, spool: true },
+        { name: 'Dawn Radiance', refill: false, spool: true },
+        { name: 'Dusk Glare', refill: false, spool: true },
+        { name: 'Blueberry Bubblegum', refill: false, spool: true },
+        { name: 'Blue Hawaii', refill: false, spool: true },
+        { name: 'Gilded Rose', refill: false, spool: true },
+        { name: 'Pink Citrus', refill: false, spool: true },
+        { name: 'Mint Lime', refill: false, spool: true },
+      ],
+    },
+    Matte: {
+      colors: [
+        { name: 'Matte Ivory White', refill: true, spool: false },
+        { name: 'Matte Charcoal', refill: true, spool: false },
+        { name: 'Matte Scarlet Red', refill: true, spool: false },
+        { name: 'Matte Marine Blue', refill: true, spool: false },
+        { name: 'Matte Mandarin Orange', refill: true, spool: false },
+        { name: 'Matte Ash Gray', refill: true, spool: false },
+        { name: 'Matte Desert Tan', refill: true, spool: false },
+        { name: 'Matte Nardo Gray', refill: true, spool: false },
+        { name: 'Matte Apple Green', refill: true, spool: false },
+        { name: 'Matte Bone White', refill: true, spool: false },
+        { name: 'Matte Caramel', refill: true, spool: false },
+        { name: 'Matte Dark Blue', refill: true, spool: false },
+        { name: 'Matte Dark Brown', refill: true, spool: false },
+        { name: 'Matte Dark Chocolate', refill: true, spool: false },
+        { name: 'Matte Dark Green', refill: true, spool: false },
+        { name: 'Matte Dark Red', refill: true, spool: false },
+        { name: 'Matte Grass Green', refill: true, spool: false },
+        { name: 'Matte Ice Blue', refill: true, spool: false },
+        { name: 'Matte Lemon Yellow', refill: true, spool: false },
+        { name: 'Matte Lilac Purple', refill: true, spool: false },
+        { name: 'Matte Plum', refill: true, spool: false },
+        { name: 'Matte Sakura Pink', refill: true, spool: false },
+        { name: 'Matte Sky Blue', refill: true, spool: false },
+        { name: 'Matte Latte Brown', refill: true, spool: false },
+        { name: 'Matte Terracotta', refill: true, spool: false },
+      ],
+    },
+    'Silk+': {
+      colors: [
+        { name: 'Candy Green', refill: false, spool: true },
+        { name: 'Candy Red', refill: false, spool: true },
+        { name: 'Mint', refill: false, spool: true },
+        { name: 'Titan Gray', refill: false, spool: true },
+        { name: 'Rose Gold', refill: false, spool: true },
+        { name: 'Champagne', refill: false, spool: true },
+        { name: 'Baby Blue', refill: false, spool: true },
+      ],
+    },
+    'Silk Multi-Color': {
+      colors: [
+        { name: 'Aurora Purple', refill: false, spool: true },
+        { name: 'Phantom Blue', refill: false, spool: true },
+        { name: 'Mystic Magenta', refill: false, spool: true },
+      ],
+    },
+    Metal: {
+      colors: [
+        { name: 'Iron Gray Metallic', refill: false, spool: true },
+        { name: 'Iridium Gold Metallic', refill: false, spool: true },
+        { name: 'Cobalt Blue Metallic', refill: false, spool: true },
+        { name: 'Copper Brown Metallic', refill: false, spool: true },
+        { name: 'Oxide Green Metallic', refill: false, spool: true },
+      ],
+    },
+    Sparkle: {
+      colors: [
+        { name: 'Onyx Black Sparkle', refill: false, spool: true },
+        { name: 'Classic Gold Sparkle', refill: false, spool: true },
+        { name: 'Crimson Red Sparkle', refill: false, spool: true },
+        { name: 'Royal Purple Sparkle', refill: false, spool: true },
+        { name: 'Slate Gray Sparkle', refill: false, spool: true },
+        { name: 'Alpine Green Sparkle', refill: false, spool: true },
+      ],
+    },
+    Galaxy: {
+      colors: [
+        { name: 'Nebulae', refill: true, spool: true },
+      ],
+    },
+    Marble: {
+      colors: [
+        { name: 'White Marble', refill: false, spool: true },
+        { name: 'Red Granite', refill: false, spool: true },
+      ],
+    },
+    Glow: {
+      colors: [
+        { name: 'Glow Blue', refill: false, spool: true },
+        { name: 'Glow Green', refill: false, spool: true },
+        { name: 'Glow Orange', refill: false, spool: true },
+        { name: 'Glow Pink', refill: false, spool: true },
+        { name: 'Glow Yellow', refill: false, spool: true },
+      ],
+    },
+    Wood: {
+      colors: [
+        { name: 'Ochre Yellow', refill: false, spool: true },
+        { name: 'White Oak', refill: false, spool: true },
+        { name: 'Clay Brown', refill: false, spool: true },
+      ],
+    },
+    'Tough+': {
+      colors: [
+        { name: 'Black', refill: true, spool: true },
+      ],
+    },
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+        { name: 'Burgundy Red', refill: false, spool: true },
+        { name: 'Jeans Blue', refill: false, spool: true },
+        { name: 'Lava Gray', refill: false, spool: true },
+        { name: 'Matcha Green', refill: false, spool: true },
+        { name: 'Royal Blue', refill: false, spool: true },
+        { name: 'Iris Purple', refill: false, spool: true },
+      ],
+    },
+  },
+  PETG: {
+    HF: {
+      colors: [
+        { name: 'Jade White', refill: true, spool: true },
+        { name: 'Black', refill: true, spool: true },
+        { name: 'Red', refill: true, spool: true },
+        { name: 'Green', refill: true, spool: true },
+        { name: 'Blue', refill: true, spool: true },
+        { name: 'Gray', refill: true, spool: true },
+        { name: 'Orange', refill: true, spool: true },
+        { name: 'Cream', refill: true, spool: true },
+        { name: 'Forest Green', refill: true, spool: true },
+        { name: 'Lake Blue', refill: true, spool: true },
+        { name: 'Lime Green', refill: true, spool: true },
+        { name: 'Peanut Brown', refill: true, spool: true },
+      ],
+    },
+    Translucent: {
+      colors: [
+        { name: 'Clear', refill: false, spool: true },
+        { name: 'Translucent Gray', refill: false, spool: true },
+        { name: 'Translucent Brown', refill: false, spool: true },
+        { name: 'Translucent Purple', refill: false, spool: true },
+        { name: 'Translucent Orange', refill: false, spool: true },
+        { name: 'Translucent Olive', refill: false, spool: true },
+        { name: 'Translucent Pink', refill: false, spool: true },
+        { name: 'Translucent Light Blue', refill: false, spool: true },
+        { name: 'Translucent Tea', refill: false, spool: true },
+      ],
+    },
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+        { name: 'Brick Red', refill: false, spool: true },
+        { name: 'Indigo Blue', refill: false, spool: true },
+        { name: 'Malachite Green', refill: false, spool: true },
+        { name: 'Titan Gray', refill: false, spool: true },
+        { name: 'Violet Purple', refill: false, spool: true },
+      ],
+    },
+  },
+  ABS: {
+    Basic: {
+      colors: [
+        { name: 'ABS Azure', refill: true, spool: true },
+        { name: 'ABS Black', refill: true, spool: true },
+        { name: 'ABS Blue', refill: true, spool: true },
+        { name: 'ABS Olive', refill: true, spool: true },
+        { name: 'ABS Tangerine Yellow', refill: true, spool: true },
+        { name: 'ABS Navy Blue', refill: true, spool: true },
+        { name: 'ABS Orange', refill: true, spool: true },
+        { name: 'ABS Bambu Green', refill: true, spool: true },
+        { name: 'ABS Red', refill: true, spool: true },
+        { name: 'ABS White', refill: true, spool: true },
+        { name: 'ABS Silver', refill: true, spool: true },
+      ],
+    },
+    GF: {
+      colors: [
+        { name: 'ABS GF Yellow', refill: true, spool: false },
+        { name: 'ABS GF Orange', refill: true, spool: false },
+      ],
+    },
+  },
+  TPU: {
+    '85A': {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+        { name: 'White', refill: false, spool: true },
+        { name: 'Flesh', refill: false, spool: true },
+        { name: 'Light Cyan', refill: false, spool: true },
+        { name: 'Neon Orange', refill: false, spool: true },
+      ],
+    },
+    '90A': {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+        { name: 'White', refill: false, spool: true },
+        { name: 'Red', refill: false, spool: true },
+        { name: 'Blaze', refill: false, spool: true },
+        { name: 'Frozen', refill: false, spool: true },
+        { name: 'Grape Jelly', refill: false, spool: true },
+        { name: 'Crystal Blue', refill: false, spool: true },
+        { name: 'Quicksilver', refill: false, spool: true },
+        { name: 'Cocoa Brown', refill: false, spool: true },
+      ],
+    },
+    '95A HF': {
+      colors: [
+        { name: 'Black', refill: true, spool: false },
+        { name: 'White', refill: true, spool: false },
+        { name: 'TPU 95A HF Yellow', refill: true, spool: false },
+      ],
+    },
+  },
+  ASA: {
+    Basic: {
+      colors: [
+        { name: 'Black', refill: true, spool: true },
+        { name: 'Blue', refill: true, spool: true },
+        { name: 'Gray', refill: true, spool: true },
+        { name: 'Green', refill: true, spool: true },
+        { name: 'Red', refill: true, spool: true },
+        { name: 'White', refill: true, spool: true },
+      ],
+    },
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+    Aero: {
+      colors: [
+        { name: 'White', refill: false, spool: true },
+      ],
+    },
+  },
+  PA6: {
+    GF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+  },
+  PAHT: {
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+  },
+  PC: {
+    Basic: {
+      colors: [
+        { name: 'Clear Black', refill: false, spool: true },
+        { name: 'Transparent', refill: false, spool: true },
+      ],
+    },
+    FR: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+  },
+  PET: {
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+  },
+  PPA: {
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+  },
+  PPS: {
+    CF: {
+      colors: [
+        { name: 'Black', refill: false, spool: true },
+      ],
+    },
+  },
+};
+
+// Helper functions
+
+export function getMaterialOptions(): string[] {
+  return Object.keys(BAMBU_LAB_CATALOG).sort();
+}
+
+export function getFinishesForMaterial(material: string): string[] {
+  const materialData = BAMBU_LAB_CATALOG[material];
+  if (!materialData) return [];
+  return Object.keys(materialData).sort();
+}
+
+export function getAllFinishes(): string[] {
+  const finishes = new Set<string>();
+  for (const material of Object.values(BAMBU_LAB_CATALOG)) {
+    for (const finish of Object.keys(material)) {
+      finishes.add(finish);
+    }
+  }
+  return [...finishes].sort();
+}
+
+export function getColorsForMaterialFinish(material: string, finish: string): CatalogColorEntry[] {
+  return BAMBU_LAB_CATALOG[material]?.[finish]?.colors ?? [];
+}
+
+export function getColorsForMaterial(material: string): CatalogColorEntry[] {
+  const materialData = BAMBU_LAB_CATALOG[material];
+  if (!materialData) return [];
+  const seen = new Set<string>();
+  const result: CatalogColorEntry[] = [];
+  for (const finish of Object.values(materialData)) {
+    for (const color of finish.colors) {
+      if (!seen.has(color.name)) {
+        seen.add(color.name);
+        result.push(color);
+      }
+    }
+  }
+  return result.sort((a, b) => a.name.localeCompare(b.name));
+}
+
+export function catalogIsSpoolOnly(material: string, finish: string, color: string): boolean {
+  const entry = BAMBU_LAB_CATALOG[material]?.[finish]?.colors.find(c => c.name === color);
+  return entry ? (entry.spool && !entry.refill) : false;
+}
+
+export function catalogIsRefillOnly(material: string, finish: string, color: string): boolean {
+  const entry = BAMBU_LAB_CATALOG[material]?.[finish]?.colors.find(c => c.name === color);
+  return entry ? (entry.refill && !entry.spool) : false;
+}
+
+export function getFinishOptionsForType(type: string): string[] {
+  return getFinishesForMaterial(type);
+}

src/data/bambuLabColors.ts

@@ -8,7 +8,7 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'Apple Green': { hex: '#C6E188' },
   'Arctic Whisper': { hex: '#ECF7F8' },
   'Ash Grey': { hex: '#9B9EA0' },
-  'Aurora Purple': { hex: '#285BB7' },
+  'Aurora Purple': { hex: ['#7F3696', '#006EC9'], isGradient: true },
   'Azure': { hex: '#489FDF' },
   'Baby Blue': { hex: '#AEC3ED' },
   'Bambu Green': { hex: '#00AE42' },
@@ -73,8 +73,6 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'Iridium Gold Metallic': { hex: '#B39B84' },
   'Iris Purple': { hex: '#69398E' },
   'Iron Gray Metallic': { hex: '#6B6C6F' },
-  'IronGray Metallic': { hex: '#6B6C6F' },
-  'Ivory White': { hex: '#FFFFFF' },
   'Jade White': { hex: '#FFFFFF' },
   'Jeans Blue': { hex: '#6E88BC' },
   'Lake Blue': { hex: '#4672E4' },
@@ -103,7 +101,6 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'Nardo Gray': { hex: '#747474' },
   'Navy Blue': { hex: '#0C2340' },
   'Nebulae': { hex: '#424379' },
-  'Nebulane': { hex: '#424379' },
   'Neon City': { hex: '#0047BB' },
   'Neon Green': { hex: '#ABFF1E' },
   'Neon Orange': { hex: '#F68A1B' },
@@ -146,11 +143,6 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'White Oak': { hex: '#D2CCA2' },
   'Yellow': { hex: '#F4EE2A' },
 
-  // ABS Colors
-  // ABS GF Colors
-  'ABS GF Yellow': { hex: '#FDD835' },
-  'ABS GF Orange': { hex: '#F48438' },
-
   // ABS Colors
   'ABS Azure': { hex: '#489FDF' },
   'ABS Olive': { hex: '#748C45' },
@@ -164,7 +156,7 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'ABS Black': { hex: '#000000' },
   'ABS Silver': { hex: '#A6A9AA' },
 
-  // Translucent Colors
+  // PETG Translucent Colors
   'Translucent Gray': { hex: '#B8B8B8' },
   'Translucent Brown': { hex: '#C89A74' },
   'Translucent Purple': { hex: '#C5A8D8' },
@@ -172,9 +164,17 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'Translucent Olive': { hex: '#A4B885' },
   'Translucent Pink': { hex: '#F9B8D0' },
   'Translucent Light Blue': { hex: '#A8D8F0' },
-  'Translucent Tea': { hex: '#D9C7A8' },
+  'Translucent Teal': { hex: '#008080' },
 
-  // PLA Matte - New Colors (2025)
+  // PLA Matte Colors
+  'Matte Ivory White': { hex: '#FFFFF0' },
+  'Matte Charcoal': { hex: '#333333' },
+  'Matte Scarlet Red': { hex: '#DE4343' },
+  'Matte Marine Blue': { hex: '#0078BF' },
+  'Matte Mandarin Orange': { hex: '#F99963' },
+  'Matte Ash Gray': { hex: '#9B9EA0' },
+  'Matte Desert Tan': { hex: '#E8DBB7' },
+  'Matte Nardo Gray': { hex: '#747474' },
   'Matte Apple Green': { hex: '#C6E188' },
   'Matte Bone White': { hex: '#C8C5B6' },
   'Matte Caramel': { hex: '#A4845C' },
@@ -185,7 +185,6 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'Matte Dark Red': { hex: '#BB3D43' },
   'Matte Grass Green': { hex: '#7CB342' },
   'Matte Ice Blue': { hex: '#A3D8E1' },
-  'Matte Ivory': { hex: '#FFFFF0' },
   'Matte Lemon Yellow': { hex: '#F7D959' },
   'Matte Lilac Purple': { hex: '#AE96D4' },
   'Matte Plum': { hex: '#851A52' },
@@ -195,15 +194,14 @@ export const bambuLabColors: Record<string, ColorMapping> = {
   'Matte Terracotta': { hex: '#A25A37' },
 
   // PLA Silk Multi-Color
-  'Silk Aurora Purple': { hex: ['#7F3696', '#006EC9'], isGradient: true },
+  'Phantom Blue': { hex: ['#00629B', '#000000'], isGradient: true },
-  'Silk Phantom Blue': { hex: ['#00629B', '#000000'], isGradient: true },
+  'Mystic Magenta': { hex: ['#720062', '#3A913F'], isGradient: true },
-  'Silk Mystic Magenta': { hex: ['#720062', '#3A913F'], isGradient: true },
 
-  // TPU 95A HF Colors
+  // TPU Colors
-  'TPU 95A HF Yellow': { hex: '#F3E600' },
+  'Flesh': { hex: '#E8C4A2' },
-
+  'Grape Jelly': { hex: '#6B2D75' },
-  // Default fallback
+  'Crystal Blue': { hex: '#5BC0EB' },
-  'Unknown': { hex: '#CCCCCC' }
+  'Quicksilver': { hex: '#A6A9AA' }
 };
 
 export function getFilamentColor(colorName: string): ColorMapping {
@@ -232,7 +230,7 @@ export function getFilamentColor(colorName: string): ColorMapping {
   }
   
   // Return default unknown color
-  return bambuLabColors['Unknown'];
+  return { hex: '#CCCCCC' };
 }
 
 export function getColorStyle(colorMapping: ColorMapping): React.CSSProperties {

src/data/bambuLabColorsComplete.ts

@@ -1,6 +1,12 @@
 // Complete Bambu Lab color database with hex codes
-export const bambuLabColors = {
+// Re-exports catalog-aligned color groupings
-  // Basic Colors
+
+import { BAMBU_LAB_CATALOG } from './bambuLabCatalog';
+
+// Flat hex lookup (for backwards compatibility)
+export const bambuLabColors: Record<string, string> = {
+  // PLA Basic
+  "Jade White": "#FFFFFF",
   "Black": "#000000",
   "White": "#FFFFFF",
   "Red": "#E53935",
@@ -8,39 +14,64 @@ export const bambuLabColors = {
   "Green": "#43A047",
   "Yellow": "#FDD835",
   "Orange": "#FB8C00",
-  "Purple": "#8E24AA",
+  "Purple": "#5E43B7",
-  "Pink": "#EC407A",
+  "Pink": "#F55A74",
-  "Grey": "#757575",
+  "Gray": "#8E9089",
-  "Brown": "#6D4C41",
+  "Brown": "#9D432C",
-  "Light Blue": "#64B5F6",
+  "Light Blue": "#61B0FF",
-  "Light Green": "#81C784",
+  "Light Gray": "#D0D2D4",
-  "Mint Green": "#4DB6AC",
+  "Sky Blue": "#73B2E5",
-  "Lime Green": "#C0CA33",
+  "Navy Blue": "#0C2340",
-  "Sky Blue": "#81D4FA",
+  "Magenta": "#EC008C",
-  "Navy Blue": "#283593",
+  "Beige": "#F7E6DE",
-  "Magenta": "#E91E63",
+  "Bambu Green": "#00AE42",
-  "Violet": "#7B1FA2",
+  "Scarlet Red": "#DE4343",
-  "Beige": "#F5DEB3",
+  "Lemon Yellow": "#F7D959",
-  "Ivory": "#FFFFF0",
+  "Cyan": "#0086D6",
+  "Sakura Pink": "#E8AFCF",
+  "Cobalt Blue": "#0055B8",
+  "Mistletoe Green": "#3F8E43",
+  "Dark Red": "#BB3D43",
+  "Hot Pink": "#F5547D",
+  "Lavender": "#B5AAD5",
+  "Sunflower Yellow": "#FEC601",
+  "Pumpkin Orange": "#FF8E16",
+  "Lime": "#C5ED48",
+  "Blue Grey": "#5B6579",
+  "Gold": "#E4BD68",
+  "Bright Green": "#BDCF00",
+  "Maroon Red": "#0A2989",
+  "Turquoise": "#00B1B7",
+  "Bronze": "#847D48",
+  "Silver": "#A6A9AA",
+  "Dark Gray": "#555555",
 
-  // Matte Colors
+  // PLA Basic Gradient
-  "Matte Black": "#212121",
+  "Neon City": "#0047BB",
-  "Matte White": "#FAFAFA",
+  "Midnight Blaze": "#0047BB",
-  "Matte Red": "#C62828",
+  "South Beach": "#468791",
-  "Matte Blue": "#1565C0",
+  "Arctic Whisper": "#ECF7F8",
-  "Matte Green": "#2E7D32",
+  "Cotton Candy Cloud": "#E9E2EC",
-  "Matte Yellow": "#F9A825",
+  "Ocean to Meadow": "#A1E4CA",
-  "Matte Orange": "#EF6C00",
+  "Solar Breeze": "#F3D9D5",
-  "Matte Purple": "#6A1B9A",
+  "Velvet Eclipse": "#000000",
-  "Matte Pink": "#D81B60",
+  "Dawn Radiance": "#C472A1",
-  "Matte Grey": "#616161",
+  "Dusk Glare": "#F6B790",
-  "Matte Brown": "#4E342E",
+  "Blueberry Bubblegum": "#BADCF4",
-  "Matte Mint": "#26A69A",
+  "Blue Hawaii": "#739FE6",
-  "Matte Lime": "#9E9D24",
+  "Gilded Rose": "#ED982C",
-  "Matte Navy": "#1A237E",
+  "Pink Citrus": "#F8C4BC",
-  "Matte Coral": "#FF5252",
+  "Mint Lime": "#BAF382",
 
-  // Matte Colors - New 2025
+  // PLA Matte
+  "Matte Ivory White": "#FFFFF0",
+  "Matte Charcoal": "#333333",
+  "Matte Scarlet Red": "#DE4343",
+  "Matte Marine Blue": "#0078BF",
+  "Matte Mandarin Orange": "#F99963",
+  "Matte Ash Gray": "#9B9EA0",
+  "Matte Desert Tan": "#E8DBB7",
+  "Matte Nardo Gray": "#747474",
   "Matte Apple Green": "#C6E188",
   "Matte Bone White": "#C8C5B6",
   "Matte Caramel": "#A4845C",
@@ -49,7 +80,7 @@ export const bambuLabColors = {
   "Matte Dark Chocolate": "#4A3729",
   "Matte Dark Green": "#68724D",
   "Matte Dark Red": "#BB3D43",
-  "Matte Grass Green": "#61C680",
+  "Matte Grass Green": "#7CB342",
   "Matte Ice Blue": "#A3D8E1",
   "Matte Lemon Yellow": "#F7D959",
   "Matte Lilac Purple": "#AE96D4",
@@ -59,131 +90,146 @@ export const bambuLabColors = {
   "Matte Latte Brown": "#D3B7A7",
   "Matte Terracotta": "#A25A37",
 
-  // Silk Colors
+  // PLA Silk+
-  "Silk White": "#FEFEFE",
+  "Candy Green": "#408619",
-  "Silk Black": "#0A0A0A",
+  "Candy Red": "#BB3A2E",
-  "Silk Red": "#F44336",
+  "Mint": "#A5DAB7",
-  "Silk Blue": "#2196F3",
+  "Titan Gray": "#606367",
-  "Silk Green": "#4CAF50",
+  "Rose Gold": "#B29593",
-  "Silk Gold": "#FFD54F",
+  "Champagne": "#EBD0B1",
-  "Silk Silver": "#CFD8DC",
+  "Baby Blue": "#AEC3ED",
-  "Silk Purple": "#9C27B0",
-  "Silk Pink": "#F06292",
-  "Silk Orange": "#FF9800",
-  "Silk Bronze": "#A1887F",
-  "Silk Copper": "#BF6F3F",
-  "Silk Jade": "#00897B",
-  "Silk Rose Gold": "#E8A09A",
-  "Silk Pearl": "#F8F8FF",
-  "Silk Ruby": "#E91E63",
-  "Silk Sapphire": "#1976D2",
-  "Silk Emerald": "#00695C",
 
-  // Silk Multi-Color
+  // PLA Silk Multi-Color
-  "Silk Aurora Purple": "#7F3696",
+  "Aurora Purple": "#7F3696",
-  "Silk Phantom Blue": "#00629B",
+  "Phantom Blue": "#00629B",
-  "Silk Mystic Magenta": "#720062",
+  "Mystic Magenta": "#720062",
 
-  // Metal Colors
+  // PLA Metal
-  "Metal Grey": "#9E9E9E",
-  "Metal Silver": "#B0BEC5",
-  "Metal Gold": "#D4AF37",
-  "Metal Copper": "#B87333",
-  "Metal Bronze": "#CD7F32",
-  
-  // Sparkle Colors
-  "Sparkle Red": "#EF5350",
-  "Sparkle Blue": "#42A5F5",
-  "Sparkle Green": "#66BB6A",
-  "Sparkle Purple": "#AB47BC",
-  "Sparkle Gold": "#FFCA28",
-  "Sparkle Silver": "#E0E0E0",
-  
-  // Glow Colors
-  "Glow in the Dark Green": "#C8E6C9",
-  "Glow in the Dark Blue": "#BBDEFB",
-  
-  // Transparent Colors
-  "Clear": "#FFFFFF",
-  "Transparent Red": "#EF5350",
-  "Transparent Blue": "#42A5F5",
-  "Transparent Green": "#66BB6A",
-  "Transparent Yellow": "#FFEE58",
-  "Transparent Orange": "#FFA726",
-  "Transparent Purple": "#AB47BC",
-  
-  // Support Materials
-  "Natural": "#F5F5DC",
-  "Support White": "#F5F5F5",
-  "Support G": "#90CAF9",
-
-  // Metal Colors (PLA)
   "Iron Gray Metallic": "#6B6C6F",
+  "Iridium Gold Metallic": "#B39B84",
+  "Cobalt Blue Metallic": "#39699E",
+  "Copper Brown Metallic": "#AA6443",
+  "Oxide Green Metallic": "#1D7C6A",
 
-  // ABS GF Colors
+  // PLA Sparkle
+  "Onyx Black Sparkle": "#2D2B28",
+  "Classic Gold Sparkle": "#E4BD68",
+  "Crimson Red Sparkle": "#792B36",
+  "Royal Purple Sparkle": "#483D8B",
+  "Slate Gray Sparkle": "#8E9089",
+  "Alpine Green Sparkle": "#3F5443",
+
+  // PLA Galaxy
+  "Nebulae": "#424379",
+
+  // PLA Marble
+  "White Marble": "#F7F3F0",
+  "Red Granite": "#AD4E38",
+
+  // PLA Glow
+  "Glow Blue": "#7AC0E9",
+  "Glow Green": "#A1FFAC",
+  "Glow Orange": "#FF9D5B",
+  "Glow Pink": "#F17B8F",
+  "Glow Yellow": "#F8FF80",
+
+  // PLA Wood
+  "Ochre Yellow": "#BC8B39",
+  "White Oak": "#D2CCA2",
+  "Clay Brown": "#8E621A",
+
+  // PLA CF
+  "Burgundy Red": "#951E23",
+  "Jeans Blue": "#6E88BC",
+  "Lava Gray": "#4D5054",
+  "Matcha Green": "#5C9748",
+  "Royal Blue": "#2842AD",
+  "Iris Purple": "#69398E",
+
+  // PETG HF
+  "Cream": "#F3E0B8",
+  "Forest Green": "#415520",
+  "Lake Blue": "#4672E4",
+  "Lime Green": "#8EE43D",
+  "Peanut Brown": "#7E5A1F",
+
+  // PETG Translucent
+  "Clear": "#FAFAFA",
+  "Translucent Gray": "#B8B8B8",
+  "Translucent Brown": "#C89A74",
+  "Translucent Purple": "#C5A8D8",
+  "Translucent Orange": "#FFB380",
+  "Translucent Olive": "#A4B885",
+  "Translucent Pink": "#F9B8D0",
+  "Translucent Light Blue": "#A8D8F0",
+  "Translucent Teal": "#008080",
+
+  // PETG CF
+  "Brick Red": "#9F332A",
+  "Indigo Blue": "#324585",
+  "Malachite Green": "#16B08E",
+  "Violet Purple": "#583061",
+
+  // ABS
+  "ABS Azure": "#489FDF",
+  "ABS Black": "#000000",
+  "ABS Blue": "#0A2989",
+  "ABS Olive": "#748C45",
+  "ABS Tangerine Yellow": "#FFC72C",
+  "ABS Navy Blue": "#0C2340",
+  "ABS Orange": "#FF6A13",
+  "ABS Bambu Green": "#00AE42",
+  "ABS Red": "#C12E1F",
+  "ABS White": "#FFFFFF",
+  "ABS Silver": "#A6A9AA",
   "ABS GF Yellow": "#FDD835",
   "ABS GF Orange": "#F48438",
 
-  // TPU 95A HF Colors
+  // TPU
+  "Flesh": "#E8C4A2",
+  "Light Cyan": "#B9E3DF",
+  "Neon Orange": "#F68A1B",
+  "Blaze": "#E78390",
+  "Frozen": "#A6DEF3",
+  "Grape Jelly": "#6B2D75",
+  "Crystal Blue": "#5BC0EB",
+  "Quicksilver": "#A6A9AA",
+  "Cocoa Brown": "#6F5034",
   "TPU 95A HF Yellow": "#F3E600",
 
-  // Wood Colors
+  // PC
-  "Ochre Yellow": "#BC8B39",
+  "Clear Black": "#5A5161",
-  "White Oak": "#D2CCA2",
+  "Transparent": "#FFFFFF",
-  "Clay Brown": "#8E621A"
 };
 
-// Colors grouped by finish type for easier selection
+// Colors grouped by finish type — derived from catalog
-export const colorsByFinish = {
+export const colorsByFinish: Record<string, string[]> = {};
-  "Basic": [
+
-    "Black", "White", "Red", "Blue", "Green", "Yellow", "Orange", 
+// Build colorsByFinish from catalog
-    "Purple", "Pink", "Grey", "Brown", "Light Blue", "Light Green",
+for (const [, finishes] of Object.entries(BAMBU_LAB_CATALOG)) {
-    "Mint Green", "Lime Green", "Sky Blue", "Navy Blue", "Magenta",
+  for (const [finishName, finishData] of Object.entries(finishes)) {
-    "Violet", "Beige", "Ivory"
+    if (!colorsByFinish[finishName]) {
-  ],
+      colorsByFinish[finishName] = [];
-  "Matte": [
+    }
-    "Matte Black", "Matte White", "Matte Red", "Matte Blue", "Matte Green",
+    for (const color of finishData.colors) {
-    "Matte Yellow", "Matte Orange", "Matte Purple", "Matte Pink", "Matte Grey",
+      if (!colorsByFinish[finishName].includes(color.name)) {
-    "Matte Brown", "Matte Mint", "Matte Lime", "Matte Navy", "Matte Coral",
+        colorsByFinish[finishName].push(color.name);
-    "Matte Apple Green", "Matte Bone White", "Matte Caramel", "Matte Dark Blue",
+      }
-    "Matte Dark Brown", "Matte Dark Chocolate", "Matte Dark Green", "Matte Dark Red",
+    }
-    "Matte Grass Green", "Matte Ice Blue", "Matte Lemon Yellow", "Matte Lilac Purple",
+  }
-    "Matte Latte Brown", "Matte Plum", "Matte Sakura Pink", "Matte Sky Blue", "Matte Terracotta"
+}
-  ],
+
-  "Silk": [
+// Sort each finish's colors
-    "Silk White", "Silk Black", "Silk Red", "Silk Blue", "Silk Green",
+for (const finish of Object.keys(colorsByFinish)) {
-    "Silk Gold", "Silk Silver", "Silk Purple", "Silk Pink", "Silk Orange",
+  colorsByFinish[finish].sort();
-    "Silk Bronze", "Silk Copper", "Silk Jade", "Silk Rose Gold", "Silk Pearl",
+}
-    "Silk Ruby", "Silk Sapphire", "Silk Emerald"
-  ],
-  "Metal": [
-    "Metal Grey", "Metal Silver", "Metal Gold", "Metal Copper", "Metal Bronze"
-  ],
-  "Sparkle": [
-    "Sparkle Red", "Sparkle Blue", "Sparkle Green", "Sparkle Purple",
-    "Sparkle Gold", "Sparkle Silver"
-  ],
-  "Glow": [
-    "Glow in the Dark Green", "Glow in the Dark Blue"
-  ],
-  "Transparent": [
-    "Clear", "Transparent Red", "Transparent Blue", "Transparent Green",
-    "Transparent Yellow", "Transparent Orange", "Transparent Purple"
-  ],
-  "Support": [
-    "Natural", "Support White", "Support G"
-  ],
-  "Wood": [
-    "Ochre Yellow", "White Oak", "Clay Brown"
-  ]
-};
 
 // Function to get hex code for a color
 export function getColorHex(colorName: string): string {
-  return bambuLabColors[colorName as keyof typeof bambuLabColors] || "#000000";
+  return bambuLabColors[colorName] || "#000000";
 }
 
 // Function to get colors for a specific finish
 export function getColorsForFinish(finish: string): string[] {
-  return colorsByFinish[finish as keyof typeof colorsByFinish] || [];
+  return colorsByFinish[finish] || [];
 }

src/services/api.ts

@@ -1,5 +1,6 @@
 import axios from 'axios';
 import { Filament } from '@/src/types/filament';
+import { Customer, Sale, CreateSaleRequest, AnalyticsOverview, TopSeller, RevenueDataPoint, InventoryAlert, TypeBreakdown } from '@/src/types/sales';
 
 const API_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:4000/api';
 
@@ -132,4 +133,79 @@ export const colorRequestService = {
   },
 };
 
+export const customerService = {
+  getAll: async (): Promise<Customer[]> => {
+    const response = await api.get('/customers');
+    return response.data;
+  },
+
+  search: async (q: string): Promise<Customer[]> => {
+    const response = await api.get(`/customers/search?q=${encodeURIComponent(q)}`);
+    return response.data;
+  },
+
+  getById: async (id: string): Promise<Customer & { sales: Sale[] }> => {
+    const response = await api.get(`/customers/${id}`);
+    return response.data;
+  },
+
+  create: async (customer: Partial<Customer>): Promise<Customer> => {
+    const response = await api.post('/customers', customer);
+    return response.data;
+  },
+
+  update: async (id: string, customer: Partial<Customer>): Promise<Customer> => {
+    const response = await api.put(`/customers/${id}`, customer);
+    return response.data;
+  },
+};
+
+export const saleService = {
+  getAll: async (page = 1, limit = 50): Promise<{ sales: Sale[]; total: number }> => {
+    const response = await api.get(`/sales?page=${page}&limit=${limit}`);
+    return response.data;
+  },
+
+  getById: async (id: string): Promise<Sale> => {
+    const response = await api.get(`/sales/${id}`);
+    return response.data;
+  },
+
+  create: async (data: CreateSaleRequest): Promise<Sale> => {
+    const response = await api.post('/sales', data);
+    return response.data;
+  },
+
+  delete: async (id: string): Promise<void> => {
+    await api.delete(`/sales/${id}`);
+  },
+};
+
+export const analyticsService = {
+  getOverview: async (period = '30d'): Promise<AnalyticsOverview> => {
+    const response = await api.get(`/analytics/overview?period=${period}`);
+    return response.data;
+  },
+
+  getTopSellers: async (period = '30d'): Promise<TopSeller[]> => {
+    const response = await api.get(`/analytics/top-sellers?period=${period}`);
+    return response.data;
+  },
+
+  getInventoryAlerts: async (): Promise<InventoryAlert[]> => {
+    const response = await api.get('/analytics/inventory-alerts');
+    return response.data;
+  },
+
+  getRevenueChart: async (period = '6m', group = 'month'): Promise<RevenueDataPoint[]> => {
+    const response = await api.get(`/analytics/revenue-chart?period=${period}&group=${group}`);
+    return response.data;
+  },
+
+  getTypeBreakdown: async (period = '30d'): Promise<TypeBreakdown[]> => {
+    const response = await api.get(`/analytics/type-breakdown?period=${period}`);
+    return response.data;
+  },
+};
+
 export default api;

src/types/sales.ts

@@ -0,0 +1,91 @@
+export interface Customer {
+  id: string;
+  name: string;
+  phone?: string;
+  city?: string;
+  notes?: string;
+  created_at?: string;
+  updated_at?: string;
+}
+
+export interface SaleItem {
+  id: string;
+  sale_id: string;
+  filament_id: string;
+  item_type: 'refill' | 'spulna';
+  quantity: number;
+  unit_price: number;
+  created_at?: string;
+  // Joined fields
+  filament_tip?: string;
+  filament_finish?: string;
+  filament_boja?: string;
+}
+
+export interface Sale {
+  id: string;
+  customer_id?: string;
+  total_amount: number;
+  notes?: string;
+  created_at?: string;
+  updated_at?: string;
+  // Joined fields
+  customer_name?: string;
+  customer_phone?: string;
+  items?: SaleItem[];
+  item_count?: number;
+}
+
+export interface CreateSaleRequest {
+  customer: {
+    name: string;
+    phone?: string;
+    city?: string;
+    notes?: string;
+  };
+  items: {
+    filament_id: string;
+    item_type: 'refill' | 'spulna';
+    quantity: number;
+  }[];
+  notes?: string;
+}
+
+export interface AnalyticsOverview {
+  revenue: number;
+  sales_count: number;
+  avg_order_value: number;
+  unique_customers: number;
+}
+
+export interface TopSeller {
+  boja: string;
+  tip: string;
+  finish: string;
+  total_qty: number;
+  total_revenue: number;
+}
+
+export interface RevenueDataPoint {
+  period: string;
+  revenue: number;
+  count: number;
+}
+
+export interface InventoryAlert {
+  id: string;
+  boja: string;
+  tip: string;
+  finish: string;
+  refill: number;
+  spulna: number;
+  kolicina: number;
+  avg_daily_sales: number;
+  days_until_stockout: number | null;
+}
+
+export interface TypeBreakdown {
+  item_type: string;
+  total_qty: number;
+  total_revenue: number;
+}