Bug fixes and Counter integrated

backend/src/main/java/com/rit/canteen/sales/controller/ProductController.java

@@ -16,6 +16,9 @@ public class ProductController {
     @Autowired
     private ProductRepository productRepository;
 
+    @Autowired
+    private com.rit.canteen.sales.repository.StallRepository stallRepository;
+
     @GetMapping
     public org.springframework.data.domain.Page<Product> getAllProducts(
             @RequestParam(required = false) String search,
@@ -35,11 +38,15 @@ public class ProductController {
     }
 
     @PostMapping
+    @org.springframework.transaction.annotation.Transactional
     public Product createProduct(@Valid @RequestBody Product product) {
-        return productRepository.save(product);
+        Product savedProduct = productRepository.save(product);
+        updateStallAssociations(savedProduct, product.getStalls());
+        return productRepository.findById(savedProduct.getId()).orElse(savedProduct);
     }
 
     @PutMapping("/{id}")
+    @org.springframework.transaction.annotation.Transactional
     public ResponseEntity<Product> updateProduct(@PathVariable Long id, @Valid @RequestBody Product productDetails) {
         return productRepository.findById(id)
                 .map(product -> {
@@ -70,11 +77,40 @@ public class ProductController {
                     product.setImageData(productDetails.getImageData());
                     product.setActive(productDetails.isActive());
                     product.setStock(productDetails.getStock());
-                    return ResponseEntity.ok(productRepository.save(product));
+                    
+                    Product updated = productRepository.save(product);
+                    updateStallAssociations(updated, productDetails.getStalls());
+                    
+                    return ResponseEntity.ok(productRepository.findById(updated.getId()).orElse(updated));
                 })
                 .orElse(ResponseEntity.notFound().build());
     }
 
+    private void updateStallAssociations(Product product, List<com.rit.canteen.sales.model.Stall> assignedStalls) {
+        // Remove product from all stalls currently associated
+        List<com.rit.canteen.sales.model.Stall> allStalls = stallRepository.findAll();
+        for (com.rit.canteen.sales.model.Stall stall : allStalls) {
+            if (stall.getProducts() != null && stall.getProducts().removeIf(p -> p.getId().equals(product.getId()))) {
+                stallRepository.save(stall);
+            }
+        }
+
+        // Add product to the newly assigned stalls
+        if (assignedStalls != null) {
+            for (com.rit.canteen.sales.model.Stall assignedStall : assignedStalls) {
+                stallRepository.findById(assignedStall.getId()).ifPresent(stall -> {
+                    if (stall.getProducts() == null) {
+                        stall.setProducts(new java.util.ArrayList<>());
+                    }
+                    if (stall.getProducts().stream().noneMatch(p -> p.getId().equals(product.getId()))) {
+                        stall.getProducts().add(product);
+                        stallRepository.save(stall);
+                    }
+                });
+            }
+        }
+    }
+
     @DeleteMapping("/{id}")
     public ResponseEntity<Void> deleteProduct(@PathVariable Long id) {
         return productRepository.findById(id)

frontend/src/pages/Products.tsx

@@ -459,8 +459,28 @@ const Products = () => {
                   </div>
                   <div><label className="block text-[11px] uppercase font-bold text-[#64748b] mb-1.5">Barcode</label><input type="text" value={formData.barcode} onChange={(e) => setFormData({ ...formData, barcode: e.target.value })} className="w-full px-4 py-3 border border-[#e2e8f0] rounded-xl text-sm" /></div>
                   <div><label className="block text-[11px] uppercase font-bold text-[#64748b] mb-1.5">Stock Quantity</label><input type="number" value={formData.stock} onChange={(e) => setFormData({ ...formData, stock: parseInt(e.target.value) || 0 })} className="w-full px-4 py-3 border border-[#e2e8f0] rounded-xl text-sm font-semibold" /></div>
-                  <div><label className="block text-[11px] uppercase font-bold text-[#64748b] mb-1.5">Counter</label>
-<select value={formData.counter} onChange={(e) => setFormData({ ...formData, counter: e.target.value })} className="w-full px-4 py-3 border border-[#e2e8f0] rounded-xl text-sm"><option value="">Select Counter</option><option value="Main Counter">Main Counter</option></select></div>
+                  <div>
+                    <label className="block text-[11px] uppercase font-bold text-[#64748b] mb-1.5">Counter (Stall) *</label>
+                    <select 
+                      required
+                      value={formData.counter} 
+                      onChange={(e) => {
+                        const stallName = e.target.value;
+                        const selectedStall = allStalls.find(s => s.name === stallName);
+                        setFormData({ 
+                          ...formData, 
+                          counter: stallName,
+                          stalls: selectedStall ? [{ id: selectedStall.id, name: selectedStall.name }] : []
+                        });
+                      }} 
+                      className="w-full px-4 py-3 border border-[#e2e8f0] rounded-xl text-sm font-semibold focus:ring-4 focus:ring-[#231651]/5 focus:border-[#231651] transition-all outline-none"
+                    >
+                      <option value="">Select Stall</option>
+                      {allStalls.map(stall => (
+                        <option key={stall.id} value={stall.name}>{stall.name}</option>
+                      ))}
+                    </select>
+                  </div>
                 </div>
                 <div className="space-y-4">
                   <div className="group">

frontend/vite.config.ts

@@ -5,6 +5,7 @@ import react from '@vitejs/plugin-react'
 export default defineConfig({
   plugins: [react()],
   server: {
+    port: 5175,
     host: true,
     proxy: {
       '/api': {