feat: add functionality for managing deleted products, including restoration and permanent deletion

backend/src/products/products.controller.ts

@@ -186,6 +186,18 @@ export class ProductsController {
     return this.productsService.update(id, body);
   }
 
+  @Roles('admin')
+  @Get('deleted')
+  findDeleted() {
+    return this.productsService.findDeleted();
+  }
+
+  @Roles('admin')
+  @Delete(':id/permanent')
+  permanentDelete(@Param('id', ParseIntPipe) id: number) {
+    return this.productsService.permanentDelete(id);
+  }
+
   @Roles('admin')
   @Delete(':id')
   remove(@Param('id', ParseIntPipe) id: number) {

backend/src/products/products.service.ts

@@ -127,19 +127,8 @@ export class ProductsService {
       });
 
       if (existing && existing.id !== id) {
-        if (!existing.isActive) {
-          return this.prisma.product.update({
-            where: { id: existing.id },
-            data: {
-              isActive: true,
-              deletedAt: null,
-              name,
-              canonicalName: name,
-            },
-          });
-        }
-
-        return existing;
+        // Om en annan produkt har samma namn, returnera ett tydligt fel
+        throw new Error('Det finns redan en annan produkt med detta namn. Välj ett unikt namn.');
       }
 
       updateData.name = name;
@@ -186,6 +175,13 @@ export class ProductsService {
     });
   }
 
+  async findDeleted() {
+    return this.prisma.product.findMany({
+      where: { isActive: false },
+      orderBy: { deletedAt: 'desc' },
+    });
+  }
+
   async remove(id: number) {
     await this.findOne(id);
 
@@ -198,6 +194,17 @@ export class ProductsService {
     });
   }
 
+  async permanentDelete(id: number) {
+    const product = await this.prisma.product.findUnique({ where: { id } });
+    if (!product) {
+      throw new NotFoundException(`Product with id ${id} not found`);
+    }
+    // Ta bort beroenden först
+    await this.prisma.productTag.deleteMany({ where: { productId: id } });
+    await this.prisma.userProduct.deleteMany({ where: { productId: id } });
+    return this.prisma.product.delete({ where: { id } });
+  }
+
   async restore(id: number) {
     const product = await this.findOne(id);