- feat: Sales estimates.

- feat: Sales invoices.
- feat: Sales payment receives.
- feat: Purchases bills.
- feat: Purchases bills payments that made to the vendors.

server/src/services/Inventory/Inventory.js

@@ -0,0 +1,16 @@
+import { InventoryTransaction } from "../../models";
+
+
+export default class InventoryService {
+
+  async isInventoryPurchaseSold(transactionType, transactionId) {
+    
+  }
+
+  static deleteTransactions(transactionId, transactionType) {
+    return InventoryTransaction.tenant().query()
+      .where('transaction_type', transactionType)
+      .where('transaction_id', transactionId)
+      .delete();
+  }
+}