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Filamenteka/app/upadaj/customers/page.tsx
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Add sales tracking system with customers, analytics, and inventory management
- Add customers table (021) and sales/sale_items tables (022) migrations
- Add customer CRUD, sale CRUD (transactional with auto inventory decrement/restore),
  and analytics API endpoints (overview, top sellers, revenue chart, inventory alerts)
- Add sales page with NewSaleModal (customer autocomplete, multi-item form,
  color-based pricing, stock validation) and SaleDetailModal
- Add customers page with search, inline editing, and purchase history
- Add analytics dashboard with recharts (revenue line chart, top sellers bar,
  refill vs spulna pie chart, inventory alerts table with stockout estimates)
- Add customerService, saleService, analyticsService to frontend API layer
- Update sidebar navigation on all admin pages
2026-03-04 23:58:57 +01:00

536 lines
24 KiB
TypeScript

'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';
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);
// 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 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">
{/* Sidebar */}
<div className="w-64 bg-white dark:bg-gray-800 shadow-lg h-screen sticky top-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">
<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 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
>
Boje
</a>
<a
href="/upadaj/requests"
className="block px-4 py-2 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
>
Zahtevi za boje
</a>
<a
href="/upadaj/sales"
className="block px-4 py-2 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
>
Prodaja
</a>
<a
href="/upadaj/customers"
className="block px-4 py-2 bg-blue-100 dark:bg-blue-900 text-blue-700 dark:text-blue-300 rounded"
>
Kupci
</a>
<a
href="/upadaj/analytics"
className="block px-4 py-2 text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 rounded"
>
Analitika
</a>
</nav>
</div>
</div>
{/* 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 */}
<div className="mb-6">
<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"
/>
</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>
</div>
);
}