feat: add delete route for the invoice

src/modules/invoices/invoices.controller.ts

@@ -1,4 +1,4 @@
-import { Body, Controller, Get, Param, Patch, Post, Query } from "@nestjs/common";
+import { Body, Controller, Delete, Get, Param, Patch, Post, Query } from "@nestjs/common";
 import { ApiOperation } from "@nestjs/swagger";
 
 import { ApplyDiscountDto } from "./DTO/apply-discount.dto";
@@ -34,6 +34,13 @@ export class InvoicesController {
     return this.invoiceService.updateInvoiceAdmin(paramDto.id, updateDto);
   }
 
+  @ApiOperation({ summary: "delete an invoice ==> admin route" })
+  @PermissionsDec(PermissionEnum.INVOICES)
+  @Delete(":id")
+  deleteInvoice(@Param() paramDto: ParamDto) {
+    return this.invoiceService.deleteInvoiceAdmin(paramDto.id);
+  }
+
   @ApiOperation({ summary: "get all invoices ==> admin route" })
   @PermissionsDec(PermissionEnum.INVOICES)
   @Get()