more OOP and restructure utils

2026-04-22 15:55:18 +07:00
parent 8834d672ba
commit 35dd1a9fce
31 changed files with 1417 additions and 494 deletions
@@ -0,0 +1,105 @@
+<?php
+
+class WarehouseManager {
+
+    private $pdo;
+    private $company_id;
+
+    public function __construct($pdo, $company_id) {
+        $this->pdo = $pdo;
+        $this->company_id = $company_id;
+    }
+
+    public function getWarehouseName($warehouse_id) {
+        $sql = "SELECT warehouse_name FROM md_warehouse
+                WHERE company_id = :company_id AND id = :warehouse_id";
+
+        $sth = $this->pdo->prepare($sql);
+        $sth->execute([
+            ":company_id"   => $this->company_id,
+            ":warehouse_id" => $warehouse_id
+        ]);
+        return $sth->fetchColumn();
+    }
+
+    public function getStockContext($warehouse_id, $id) {
+        $name = $this->getWarehouseName($warehouse_id);
+        $table = "td_stock_" . $name;
+
+        if (empty($id)) {
+            return [
+                'table' => $table,
+                'name'  => $name,
+                'row'   => []
+            ];
+        }
+
+        $sql = "SELECT * FROM `$table`
+                WHERE company_id = :company_id AND id = :id";
+
+        $sth = $this->pdo->prepare($sql);
+        $sth->execute([
+            ":company_id" => $this->company_id,
+            ":id"         => $id
+        ]);
+
+        return [
+            'table' => $table,
+            'name'  => $name,
+            'row'   => $sth->fetch(PDO::FETCH_ASSOC) ?: []
+        ];
+    }
+
+    public function adjustBalance($type, $warehouse_id, $product_sku, $old_qty, $new_qty) {
+
+        // Lock the row — other transactions wait here
+        $sql = "SELECT id FROM warehouse_balance
+                WHERE company_id = :company_id 
+                AND warehouse_id = :warehouse_id 
+                AND product_sku = :product_sku
+                FOR UPDATE";
+
+        $sth = $this->pdo->prepare($sql);
+        $sth->execute([
+            ":company_id"   => $this->company_id,
+            ":warehouse_id" => $warehouse_id,
+            ":product_sku"  => $product_sku
+        ]);
+
+        if (!$sth->fetchColumn()) {
+            $sql = "INSERT INTO warehouse_balance 
+                    (company_id, warehouse_id, product_sku)
+                    VALUES (:company_id, :warehouse_id, :product_sku)";
+
+            $sth = $this->pdo->prepare($sql);
+            $sth->execute([
+                ":company_id"   => $this->company_id,
+                ":warehouse_id" => $warehouse_id,
+                ":product_sku"  => $product_sku
+            ]);
+        }
+
+        $column = $type === 'in' ? 'total_in' : 'total_out';
+
+        // This is already atomic since it uses relative update
+        $sql = "UPDATE warehouse_balance 
+                SET `$column` = `$column` - :old_qty + :new_qty
+                WHERE company_id = :company_id 
+                AND warehouse_id = :warehouse_id 
+                AND product_sku = :product_sku";
+
+        $sth = $this->pdo->prepare($sql);
+        $sth->execute([
+            ":company_id"   => $this->company_id,
+            ":warehouse_id" => $warehouse_id,
+            ":product_sku"  => $product_sku,
+            ":old_qty"      => $old_qty,
+            ":new_qty"      => $new_qty
+        ]);
+    }
+}
+
+
+
+
+?>