feat: retrieve all due invoices and bills or for specific customer/vendor.

server/src/api/controllers/Purchases/Bills.ts

@@ -47,6 +47,14 @@ export default class BillsController extends BaseController {
       asyncMiddleware(this.editBill.bind(this)),
       this.handleServiceError,
     );
+    router.get(
+      '/due', [
+        ...this.dueBillsListingValidationSchema
+      ],
+      this.validationResult,
+      asyncMiddleware(this.getDueBills.bind(this)),
+      this.handleServiceError,
+    )
     router.get(
       '/:id', [
         ...this.specificBillValidationSchema,
@@ -139,6 +147,12 @@ export default class BillsController extends BaseController {
       query('sort_order').optional().isIn(['desc', 'asc']),
     ];
   }
+
+  get dueBillsListingValidationSchema() {
+    return [
+      query('vendor_id').optional().trim().escape(),
+    ]
+  }
  
   /**
    * Creates a new bill and records journal transactions.
@@ -255,6 +269,24 @@ export default class BillsController extends BaseController {
     }
   }
 
+  /**
+   * Listing all due bills of the given vendor.
+   * @param {Request} req 
+   * @param {Response} res 
+   * @param {NextFunction} next 
+   */
+  public async getDueBills(req: Request, res: Response, next: NextFunction) {
+    const { tenantId } = req;
+    const { vendorId } = this.matchedQueryData(req);
+
+    try {
+      const bills = await this.billsService.getDueBills(tenantId, vendorId);
+      return res.status(200).send({ bills });
+    } catch (error) {
+      next(error);
+    }
+  }
+
   /**
    * Handles service errors.
    * @param {Error} error