feat(cardex): implement cardex controller, service, and DTO for stock movements

feat(pos): add POS controller and service for order creation and stock retrieval
refactor(pos): enhance stock and product category retrieval with pagination and mapping

src/suppliers/suppliers.service.ts

@@ -18,7 +18,82 @@ export class SuppliersService {
   async findOne(id: number) {
     const item = await this.prisma.supplier.findUnique({ where: { id } })
     if (!item) return null
-    return ResponseMapper.single(item)
+    const receiptsInfo = await this.prisma.purchaseReceipt.aggregate({
+      where: {
+        supplierId: id,
+      },
+      _count: true,
+      _sum: {
+        totalAmount: true,
+      },
+    })
+
+    return ResponseMapper.single({
+      ...item,
+      receiptsOverview: {
+        totalPayment: receiptsInfo._sum.totalAmount,
+        count: receiptsInfo._count,
+      },
+    })
+  }
+
+  async getInvoices(supplierId: number) {
+    const items = await this.prisma.purchaseReceipt.findMany({
+      where: {
+        supplierId,
+      },
+      include: {
+        inventory: {
+          select: {
+            id: true,
+            name: true,
+          },
+        },
+        items: {
+          select: {
+            id: true,
+            count: true,
+            fee: true,
+            total: true,
+            product: {
+              select: {
+                id: true,
+                name: true,
+                sku: true,
+              },
+            },
+          },
+        },
+      },
+      omit: {
+        inventoryId: true,
+        supplierId: true,
+      },
+    })
+    return ResponseMapper.list(items)
+  }
+
+  async getInvoice(supplierId: number, invoiceId: number) {
+    const invoice = await this.prisma.purchaseReceipt.findUnique({
+      where: {
+        id: invoiceId,
+        supplierId,
+      },
+      include: {
+        inventory: {
+          select: {
+            id: true,
+            name: true,
+          },
+        },
+        items: true,
+      },
+      omit: {
+        inventoryId: true,
+        supplierId: true,
+      },
+    })
+    return ResponseMapper.single(invoice)
   }
 
   async update(id: number, data: any) {