feat: implement purchase receipt items management with create, update, find, and delete functionalities

feat: add purchase receipts management with create, update, find, and delete functionalities

feat: implement sales invoice items management with create, update, find, and delete functionalities

feat: add sales invoices management with create, update, find, and delete functionalities

feat: implement stock adjustments management with create, update, find, and delete functionalities

feat: add stock balance retrieval functionality

feat: implement stock movements management with create, update, find, and delete functionalities

src/sales-invoice-items/sales-invoice-items.service.ts

@@ -0,0 +1,98 @@
+import { Injectable } from '@nestjs/common'
+import { ResponseMapper } from '../common/response/response-mapper'
+import { PrismaService } from '../prisma/prisma.service'
+import { CreateSalesInvoiceItemDto } from './dto/create-sales-invoice-item.dto'
+
+@Injectable()
+export class SalesInvoiceItemsService {
+  constructor(private prisma: PrismaService) {}
+
+  async create(dto: CreateSalesInvoiceItemDto) {
+    const payload: any = { ...dto }
+    if (Object.prototype.hasOwnProperty.call(payload, 'invoiceId')) {
+      payload.invoice = { connect: { id: Number(payload.invoiceId) } }
+      delete payload.invoiceId
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'productId')) {
+      payload.product = { connect: { id: Number(payload.productId) } }
+      delete payload.productId
+    }
+
+    const item = await this.prisma.salesInvoiceItem.create({ data: payload })
+    return ResponseMapper.create(item)
+  }
+  async findAll(invoiceId?: number) {
+    const where = invoiceId ? { invoiceId: Number(invoiceId) } : undefined
+    const items = await this.prisma.salesInvoiceItem.findMany({
+      where,
+      include: { product: true },
+    })
+    return ResponseMapper.list(items)
+  }
+
+  async findOne(id: number) {
+    const item = await this.prisma.salesInvoiceItem.findUnique({
+      where: { id },
+      include: { product: true, invoice: true },
+    })
+    if (!item) return null
+    return ResponseMapper.single(item)
+  }
+
+  async createForInvoice(invoiceId: number, dto: CreateSalesInvoiceItemDto) {
+    const payload: any = { ...dto, invoiceId }
+    return this.create(payload)
+  }
+
+  async findAllForInvoice(invoiceId: number) {
+    return this.findAll(invoiceId)
+  }
+
+  async findOneForInvoice(invoiceId: number, id: number) {
+    const item = await this.prisma.salesInvoiceItem.findFirst({
+      where: { id, invoiceId },
+      include: { product: true, invoice: true },
+    })
+    if (!item) return null
+    return ResponseMapper.single(item)
+  }
+
+  async update(id: number, data: any) {
+    const payload: any = { ...data }
+    if (Object.prototype.hasOwnProperty.call(payload, 'productId')) {
+      payload.product = { connect: { id: Number(payload.productId) } }
+      delete payload.productId
+    }
+    if (Object.prototype.hasOwnProperty.call(payload, 'invoiceId')) {
+      payload.invoice = { connect: { id: Number(payload.invoiceId) } }
+      delete payload.invoiceId
+    }
+
+    const item = await this.prisma.salesInvoiceItem.update({
+      where: { id },
+      data: payload,
+    })
+    return ResponseMapper.update(item)
+  }
+
+  async updateForInvoice(invoiceId: number, id: number, data: any) {
+    const existing = await this.prisma.salesInvoiceItem.findFirst({
+      where: { id, invoiceId },
+    })
+    if (!existing) return null
+    return this.update(id, data)
+  }
+
+  async remove(id: number) {
+    const item = await this.prisma.salesInvoiceItem.delete({ where: { id } })
+    return ResponseMapper.single(item)
+  }
+
+  async removeForInvoice(invoiceId: number, id: number) {
+    const existing = await this.prisma.salesInvoiceItem.findFirst({
+      where: { id, invoiceId },
+    })
+    if (!existing) return null
+    return this.remove(id)
+  }
+}