Fix sale countdown timer to properly update when sale dates change

- Fix SaleCountdown useEffect dependency array to include saleEndDate
- Remove console logs and debug output from page.tsx
- Clean up date parsing logic and remove unnecessary error handling
- Ensure countdown recalculates when sale end date changes
- Fix TypeScript type comparison for sale_active boolean check

src/components/SaleCountdown.tsx

@@ -32,21 +32,7 @@ export function SaleCountdown({ hasActiveSale, maxSalePercentage = 5, saleEndDat
 
       if (saleEndDate) {
         // Use the sale end date from admin
-        try {
-          const saleDate = new Date(saleEndDate);
-          // Always set to end of day for proper countdown display
-          targetDate = new Date(saleDate.getFullYear(), saleDate.getMonth(), saleDate.getDate(), 23, 59, 59, 999);
-        } catch (error) {
-          console.error('Error parsing sale end date:', error);
-          // Fallback to next Sunday if date parsing fails
-          const nextSunday = new Date();
-          const daysUntilSunday = (7 - now.getDay()) % 7;
-          const targetDay = daysUntilSunday === 0 ? 7 : daysUntilSunday;
-          
-          nextSunday.setDate(now.getDate() + targetDay);
-          nextSunday.setHours(23, 59, 59, 999);
-          targetDate = nextSunday;
-        }
+        targetDate = new Date(saleEndDate);
       } else {
         // Fallback to next Sunday at 23:59:59
         const nextSunday = new Date();
@@ -80,7 +66,7 @@ export function SaleCountdown({ hasActiveSale, maxSalePercentage = 5, saleEndDat
     setTimeLeft(calculateTimeLeft());
 
     return () => clearInterval(timer);
-  }, [mounted]);
+  }, [mounted, saleEndDate]);
 
   if (!mounted) {
     return <div className="h-24" />; // Placeholder to prevent hydration mismatch

src/components/SaleManager.tsx

@@ -24,6 +24,20 @@ export function SaleManager({ filaments, selectedFilaments, onSaleUpdate }: Sale
     
     setLoading(true);
     try {
+      // First, clear all existing sales
+      try {
+        await filamentService.updateBulkSale({
+          filamentIds: undefined, // Apply to all
+          salePercentage: 0,
+          saleStartDate: undefined,
+          saleEndDate: undefined,
+          enableSale: false
+        });
+      } catch (error: any) {
+        console.warn('Failed to clear existing sales:', error);
+      }
+      
+      // Then apply the new sale to selected filaments
       const filamentIds = Array.from(selectedFilaments);
       
       try {