feat: PantryItem (Baslager) - tabell, backend-modul och frontend-sida

backend/src/pantry/pantry.service.ts

@@ -0,0 +1,44 @@
+import { Injectable, ConflictException, NotFoundException } from '@nestjs/common';
+import { PrismaService } from '../prisma/prisma.service';
+import { CreatePantryItemDto } from './dto/create-pantry-item.dto';
+
+@Injectable()
+export class PantryService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  findAll() {
+    return this.prisma.pantryItem.findMany({
+      include: {
+        product: true,
+      },
+      orderBy: {
+        product: { name: 'asc' },
+      },
+    });
+  }
+
+  async create(data: CreatePantryItemDto) {
+    const existing = await this.prisma.pantryItem.findUnique({
+      where: { productId: data.productId },
+    });
+
+    if (existing) {
+      throw new ConflictException('Produkten finns redan i baslagret');
+    }
+
+    return this.prisma.pantryItem.create({
+      data: { productId: data.productId },
+      include: { product: true },
+    });
+  }
+
+  async remove(id: number) {
+    const item = await this.prisma.pantryItem.findUnique({ where: { id } });
+
+    if (!item) {
+      throw new NotFoundException(`PantryItem med id ${id} hittades inte`);
+    }
+
+    return this.prisma.pantryItem.delete({ where: { id } });
+  }
+}