feat: employee code gen

src/controllers/employee-controller.ts

@@ -163,12 +163,16 @@ export class EmployeeController extends Controller {
 
   @Post()
   async create(@Request() req: RequestWithUser, @Body() body: EmployeeCreate) {
-    if (body.provinceId || body.districtId || body.subDistrictId || body.customerBranchId) {
     const [province, district, subDistrict, customerBranch] = await prisma.$transaction([
       prisma.province.findFirst({ where: { id: body.provinceId || undefined } }),
       prisma.district.findFirst({ where: { id: body.districtId || undefined } }),
       prisma.subDistrict.findFirst({ where: { id: body.subDistrictId || undefined } }),
-        prisma.customerBranch.findFirst({ where: { id: body.customerBranchId || undefined } }),
+      prisma.customerBranch.findFirst({
+        where: { id: body.customerBranchId || undefined },
+        include: {
+          customer: true,
+        },
+      }),
     ]);
     if (body.provinceId && !province)
       throw new HttpError(
@@ -188,17 +192,29 @@ export class EmployeeController extends Controller {
         "Sub-district cannot be found.",
         "missing_or_invalid_parameter",
       );
-      if (body.customerBranchId && !customerBranch)
+    if (!customerBranch)
       throw new HttpError(
         HttpStatus.BAD_REQUEST,
         "Customer Branch cannot be found.",
         "missing_or_invalid_parameter",
       );
-    }
 
     const { provinceId, districtId, subDistrictId, customerBranchId, ...rest } = body;
 
-    const record = await prisma.employee.create({
+    const record = await prisma.$transaction(
+      async (tx) => {
+        const last = await tx.runningNo.upsert({
+          where: {
+            key: `EMPLOYEE_${customerBranch.customer.code}-${customerBranch.branchNo}-${new Date().getFullYear().toString().slice(-2).padStart(2, "0")}`,
+          },
+          create: {
+            key: `EMPLOYEE_${customerBranch.customer.code}-${customerBranch.branchNo}-${new Date().getFullYear().toString().slice(-2).padStart(2, "0")}`,
+            value: 1,
+          },
+          update: { value: { increment: 1 } },
+        });
+
+        return await prisma.employee.create({
           include: {
             province: true,
             district: true,
@@ -206,6 +222,7 @@ export class EmployeeController extends Controller {
           },
           data: {
             ...rest,
+            code: `${customerBranch.customer.code}-${customerBranch.branchNo}-${new Date().getFullYear().toString().slice(-2).padStart(2, "0")}${last.value.toString().padStart(4, "0")}`,
             province: { connect: provinceId ? { id: provinceId } : undefined },
             district: { connect: districtId ? { id: districtId } : undefined },
             subDistrict: { connect: subDistrictId ? { id: subDistrictId } : undefined },
@@ -214,6 +231,9 @@ export class EmployeeController extends Controller {
             updateBy: req.user.name,
           },
         });
+      },
+      { isolationLevel: Prisma.TransactionIsolationLevel.Serializable },
+    );
 
     await prisma.customerBranch.updateMany({
       where: { id: customerBranchId, status: Status.CREATED },