refactor: restructure suppliers module and update DTOs

- Removed old supplier DTOs and controller, replacing them with new implementations.
- Introduced new CreateSupplierDto and UpdateSupplierDto in the index directory.
- Updated SuppliersController to handle new routes and methods.
- Implemented SuppliersService with updated logic for creating, finding, updating, and removing suppliers.
- Added new invoices module with corresponding controller and service for handling invoice-related operations.
- Created new DTOs for handling receipt payments and updated the service to manage payment creation and retrieval.
- Updated Prisma migrations to reflect changes in the database schema, including dropping unnecessary columns.

prisma/triggers/dump_triggers.sql

@@ -7,6 +7,7 @@
 -- Table: Inventory_Transfer_Items
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_transfer_item_after_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_transfer_item_after_insert` AFTER INSERT ON `Inventory_Transfer_Items` FOR EACH ROW begin
 
 DECLARE fromInv INT;
@@ -44,6 +45,7 @@ end;
 -- Table: Purchase_Receipt_Items
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_purchase_receipt_item_after_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_purchase_receipt_item_after_insert` AFTER INSERT ON `Purchase_Receipt_Items` FOR EACH ROW BEGIN DECLARE latestQuantity DECIMAL(10, 2) DEFAULT 0;
 
 DECLARE invId INT;
@@ -106,6 +108,7 @@ END;
 -- Table: Purchase_Receipt_Payments
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_pr_payment_before_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_pr_payment_before_insert` BEFORE INSERT ON `Purchase_Receipt_Payments` FOR EACH ROW BEGIN
   DECLARE receiptTotal DECIMAL(14,2);
   DECLARE paid DECIMAL(14,2);
@@ -128,14 +131,15 @@ END;
 -- Table: Purchase_Receipt_Payments
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_pr_payment_after_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_pr_payment_after_insert` AFTER INSERT ON `Purchase_Receipt_Payments` FOR EACH ROW BEGIN
-  DECLARE receiptTotal DECIMAL(14,2);
-  DECLARE newPaid DECIMAL(14,2);
+  DECLARE receiptTotal DECIMAL(14,2) DEFAULT 0;
+  DECLARE newPaid DECIMAL(14,2) DEFAULT 0;
   DECLARE supplierId INT;
-  DECLARE lastBalance DECIMAL(14,2);
+  DECLARE lastBalance DECIMAL(14,2) DEFAULT 0;
 
   -- Lock receipt row
-  SELECT totalAmount, paidAmount, supplierId
+  SELECT COALESCE(totalAmount, 0), COALESCE(paidAmount, 0), supplierId
   INTO receiptTotal, newPaid, supplierId
   FROM Purchase_Receipts
   WHERE id = NEW.receiptId
@@ -199,6 +203,7 @@ END;
 -- Table: Purchase_Receipt_Payments
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_pr_payment_after_delete`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_pr_payment_after_delete` AFTER DELETE ON `Purchase_Receipt_Payments` FOR EACH ROW BEGIN
   DECLARE receiptTotal DECIMAL(14,2);
   DECLARE newPaid DECIMAL(14,2);
@@ -233,6 +238,7 @@ END;
 -- Table: Purchase_Receipts
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_purchase_receipt_after_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_purchase_receipt_after_insert` AFTER INSERT ON `Purchase_Receipts` FOR EACH ROW BEGIN
   DECLARE lastBalance DECIMAL(14,2) DEFAULT 0;
 
@@ -271,6 +277,7 @@ END;
 -- Table: Sales_Invoice_Items
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_sales_invoice_items_before_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_sales_invoice_items_before_insert` BEFORE INSERT ON `Sales_Invoice_Items` FOR EACH ROW begin DECLARE current_stock DECIMAL(10, 2);
 
 DECLARE inventory_id INT;
@@ -300,6 +307,7 @@ end;
 -- Table: Sales_Invoice_Items
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_sales_invoice_items_after_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_sales_invoice_items_after_insert` AFTER INSERT ON `Sales_Invoice_Items` FOR EACH ROW begin DECLARE current_stock DECIMAL(10, 2);
 
 DECLARE inventory_id INT;
@@ -360,6 +368,7 @@ END;
 -- Table: Stock_Movements
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_stock_transfer`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_transfer` AFTER INSERT ON `Stock_Movements` FOR EACH ROW BEGIN IF NEW.referenceType = 'INVENTORY_TRANSFER' THEN IF NEW.type = 'IN' THEN
 INSERT INTO
     Stock_Balance (
@@ -442,6 +451,7 @@ END;
 -- Table: Stock_Movements
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_stock_purchase_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_purchase_insert` AFTER INSERT ON `Stock_Movements` FOR EACH ROW BEGIN IF NEW.referenceType = 'PURCHASE' THEN
 
 INSERT INTO
@@ -476,6 +486,7 @@ END;
 -- Table: Stock_Movements
 -- ------------------------------------------
 DROP TRIGGER IF EXISTS `trg_stock_sale_insert`;
+
 CREATE DEFINER=`pos`@`%` TRIGGER `trg_stock_sale_insert` AFTER INSERT ON `Stock_Movements` FOR EACH ROW BEGIN IF NEW.referenceType = 'SALES' THEN
 
 INSERT INTO
@@ -503,4 +514,3 @@ ON DUPLICATE KEY UPDATE
 END IF;
 
 END;
-