encapsulate Barcode Operations [OOP]

app/ics/api/engine/sku_barcode_label.php

@@ -1,127 +1,7 @@
 <?php
     session_start();
     require '../../../assets/utils/db_auth.php';
-
-    function stockTableNameFromWarehouseId(int $warehouse_id): string {
-        return 'td_stock_' . $warehouse_id;
-    }
-
-    function findProduct(PDO $pdo, int $company_id, string $sku): array|false {
-        $sth = $pdo->prepare(
-            "SELECT sku, product_name, uom
-             FROM md_product
-             WHERE company_id = :company_id
-                AND sku = :sku
-                AND status > 0
-             LIMIT 1"
-        );
-        $sth->execute([':company_id' => $company_id, ':sku' => $sku]);
-        return $sth->fetch(PDO::FETCH_ASSOC);
-    }
-
-    function activeStockLotExists(PDO $pdo, int $company_id, string $sku, string $lot): bool {
-        $warehouses = $pdo->prepare(
-            "SELECT id FROM md_warehouse
-             WHERE company_id = :company_id AND status = 1"
-        );
-        $warehouses->execute([':company_id' => $company_id]);
-
-        foreach ($warehouses->fetchAll(PDO::FETCH_COLUMN) as $warehouse_id) {
-            $table = stockTableNameFromWarehouseId((int)$warehouse_id);
-            $sth = $pdo->prepare(
-                "SELECT ROUND(SUM(COALESCE(`in`, 0)) - SUM(COALESCE(`out`, 0)), 2) AS balance
-                 FROM `{$table}`
-                 WHERE company_id = :company_id
-                    AND product_sku = :product_sku
-                    AND lot_number = :lot_number
-                    AND status = 1"
-            );
-            $sth->execute([
-                ':company_id'  => $company_id,
-                ':product_sku' => $sku,
-                ':lot_number'  => $lot,
-            ]);
-            if ((float)$sth->fetchColumn() > 0) return true;
-        }
-
-        return false;
-    }
-
-    function findLot(PDO $pdo, int $company_id, string $sku, string $lot): array|false {
-        $sth = $pdo->prepare(
-            "SELECT
-                l.product_sku,
-                l.lot_number,
-                l.expiry_date,
-                p.product_name,
-                p.uom
-             FROM md_lot l
-             INNER JOIN md_product p
-                ON p.company_id = l.company_id
-                AND p.sku = l.product_sku
-             WHERE l.company_id = :company_id
-                AND l.product_sku = :product_sku
-                AND l.lot_number = :lot_number
-                AND p.status > 0
-             LIMIT 1"
-        );
-        $sth->execute([
-            ':company_id'  => $company_id,
-            ':product_sku' => $sku,
-            ':lot_number'  => $lot,
-        ]);
-        $row = $sth->fetch(PDO::FETCH_ASSOC);
-        if ($row) return $row;
-
-        $product = findProduct($pdo, $company_id, $sku);
-        if (!$product || !activeStockLotExists($pdo, $company_id, $sku, $lot)) return false;
-
-        return [
-            'product_sku'  => $product['sku'],
-            'lot_number'   => $lot,
-            'expiry_date'  => null,
-            'product_name' => $product['product_name'],
-            'uom'          => $product['uom'],
-        ];
-    }
-
-    function listLabels(PDO $pdo, int $company_id, string $sku, string $lot): array {
-        $params = [':company_id' => $company_id];
-        $where = "WHERE b.company_id = :company_id";
-
-        if ($sku !== '') {
-            $where .= " AND b.product_sku = :product_sku";
-            $params[':product_sku'] = $sku;
-        }
-
-        if ($lot !== '') {
-            $where .= " AND b.lot_number = :lot_number";
-            $params[':lot_number'] = $lot;
-        }
-
-        $sth = $pdo->prepare(
-            "SELECT
-                b.id,
-                b.product_sku,
-                b.lot_number,
-                b.serial_number,
-                b.barcode,
-                b.status,
-                b.print_count,
-                b.last_printed_dt,
-                b.created_dt,
-                p.product_name
-             FROM md_barcode b
-             LEFT JOIN md_product p
-                ON p.company_id = b.company_id
-                AND p.sku = b.product_sku
-             {$where}
-                AND b.barcode_type = 'sku'
-             ORDER BY b.created_dt DESC, b.id DESC"
-        );
-        $sth->execute($params);
-        return $sth->fetchAll(PDO::FETCH_ASSOC);
-    }
+    require '../../../assets/utils/classes/BarcodeManager.php';
 
     $label_action = $data['label_action'] ?? 'read';
     $product_sku  = trim($data['product_sku'] ?? '');
@@ -131,6 +11,8 @@
         require_role($user_role, ['owner', 'admin', 'staff']);
     }
 
+    $bm = new BarcodeManager($pdo2, $company_id);
+
     if ($label_action === 'print') {
         $barcode = trim($data['barcode'] ?? '');
         if ($barcode === '') {
@@ -138,18 +20,7 @@
             http_response_code(400);
             exit(json_encode($answer));
         }
-
-        $sth = $pdo2->prepare(
-            "UPDATE md_barcode
-             SET print_count = print_count + 1,
-                 last_printed_dt = NOW()
-             WHERE company_id = :company_id
-                AND barcode = :barcode
-                AND barcode_type = 'sku'
-                AND status = 1"
-        );
-        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
-
+        $bm->recordPrint($barcode, 'sku');
         $answer['success'] = 1;
         exit(json_encode($answer));
     }
@@ -161,23 +32,13 @@
             http_response_code(400);
             exit(json_encode($answer));
         }
-
-        $sth = $pdo2->prepare(
-            "UPDATE md_barcode
-             SET status = 0
-             WHERE company_id = :company_id
-                AND barcode = :barcode
-                AND barcode_type = 'sku'
-                AND status = 1"
-        );
-        $sth->execute([':company_id' => $company_id, ':barcode' => $barcode]);
-
+        $bm->setStatus($barcode, 'sku', 0);
         $answer['success'] = 1;
         exit(json_encode($answer));
     }
 
     if ($label_action === 'create') {
-        $serial_number = trim($data['serial_number'] ?? '');
+        $serial_number  = trim($data['serial_number'] ?? '');
         $allow_unlisted = !empty($data['allow_unlisted']);
 
         if ($product_sku === '' || $lot_number === '' || $serial_number === '') {
@@ -186,64 +47,19 @@
             exit(json_encode($answer));
         }
 
-        $lot = findLot($pdo2, $company_id, $product_sku, $lot_number);
-        if (!$lot) {
-            if (!$allow_unlisted) {
-                $answer['message'] = 'Lot not found.';
-                http_response_code(404);
-                exit(json_encode($answer));
-            }
-
-            $product = findProduct($pdo2, $company_id, $product_sku);
-            if (!$product) {
-                $answer['message'] = 'SKU not found.';
-                http_response_code(404);
-                exit(json_encode($answer));
-            }
-
-            $lot = [
-                'product_sku'  => $product['sku'],
-                'lot_number'   => $lot_number,
-                'expiry_date'  => null,
-                'product_name' => $product['product_name'],
-                'uom'          => $product['uom'],
-            ];
+        try {
+            $output            = $bm->createSkuLabel($product_sku, $lot_number, $serial_number, $allow_unlisted);
+            $answer['success'] = 1;
+            $answer['output']  = $output;
+        } catch (Exception $e) {
+            $answer['message'] = $e->getMessage();
+            http_response_code(($e->getMessage() === 'Lot not found.' || $e->getMessage() === 'SKU not found.') ? 404 : 400);
         }
 
-        $barcode = "SKU|{$product_sku}|{$lot_number}|{$serial_number}";
-
-        $sth = $pdo2->prepare(
-            "INSERT INTO md_barcode
-                (company_id, barcode_type, barcode, product_sku, lot_number, serial_number)
-             VALUES
-                (:company_id, 'sku', :barcode, :product_sku, :lot_number, :serial_number)
-             ON DUPLICATE KEY UPDATE
-                barcode_type = VALUES(barcode_type),
-                product_sku = VALUES(product_sku),
-                lot_number = VALUES(lot_number),
-                serial_number = VALUES(serial_number),
-                status = 1"
-        );
-        $sth->execute([
-            ':company_id'    => $company_id,
-            ':product_sku'   => $product_sku,
-            ':lot_number'    => $lot_number,
-            ':serial_number' => $serial_number,
-            ':barcode'       => $barcode,
-        ]);
-
-        $answer['success'] = 1;
-        $answer['output'] = [
-            'product_sku'   => $product_sku,
-            'product_name'  => $lot['product_name'],
-            'lot_number'    => $lot_number,
-            'serial_number' => $serial_number,
-            'barcode'       => $barcode,
-        ];
         exit(json_encode($answer));
     }
 
     $answer['success'] = 1;
-    $answer['output']  = listLabels($pdo2, $company_id, $product_sku, $lot_number);
+    $answer['output']  = $bm->listSkuLabels($product_sku, $lot_number);
     exit(json_encode($answer));
 ?>