feat: initial foundation for collaborative canteen ordering system in vanilla PHP

2026-08-27 17:29:13 +07:00
commit 5effce30cb
52 changed files with 4915 additions and 0 deletions
@@ -0,0 +1,130 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use App\Core\Database\Database;
+use PDO;
+
+class EmployeeOrder
+{
+    public static function getBySessionId(int $sessionId): array
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("
+            SELECT eo.*, u.name as user_name, u.username as mattermost_username, u.email as user_email
+            FROM employee_orders eo
+            JOIN users u ON eo.user_id = u.id
+            WHERE eo.session_id = ?
+            ORDER BY eo.id ASC
+        ");
+        $stmt->execute([$sessionId]);
+        $orders = $stmt->fetchAll();
+
+        foreach ($orders as &$order) {
+            $order['items'] = self::getItemsByOrderId((int)$order['id']);
+        }
+
+        return $orders;
+    }
+
+    public static function getItemsByOrderId(int $orderId): array
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("SELECT * FROM employee_order_items WHERE employee_order_id = ? ORDER BY id ASC");
+        $stmt->execute([$orderId]);
+        return $stmt->fetchAll();
+    }
+
+    public static function findUserOrderBySession(int $sessionId, int $userId): ?array
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("SELECT * FROM employee_orders WHERE session_id = ? AND user_id = ?");
+        $stmt->execute([$sessionId, $userId]);
+        $order = $stmt->fetch();
+
+        if (!$order) {
+            return null;
+        }
+
+        $order['items'] = self::getItemsByOrderId((int)$order['id']);
+        return $order;
+    }
+
+    public static function createOrder(int $sessionId, int $userId, ?string $notes, array $items): int
+    {
+        $db = Database::getConnection();
+        $db->beginTransaction();
+
+        try {
+            $stmtOrder = $db->prepare("
+                INSERT INTO employee_orders (session_id, user_id, status, notes, total_bill) 
+                VALUES (?, ?, 'unpaid', ?, 0.00)
+            ");
+            $stmtOrder->execute([$sessionId, $userId, $notes]);
+            $orderId = (int)$db->lastInsertId();
+
+            $stmtItem = $db->prepare("
+                INSERT INTO employee_order_items (employee_order_id, session_menu_id, item_name, quantity, unit_price, total_price, notes) 
+                VALUES (?, ?, ?, ?, ?, ?, ?)
+            ");
+
+            $totalBill = 0.0;
+
+            foreach ($items as $item) {
+                $menuId = !empty($item['session_menu_id']) ? (int)$item['session_menu_id'] : null;
+                $name = trim((string)($item['item_name'] ?? ''));
+                $qty = max(1, (int)($item['quantity'] ?? 1));
+                $unitPrice = (float)($item['unit_price'] ?? 0.0);
+                $lineTotal = $qty * $unitPrice;
+                $itemNotes = trim((string)($item['notes'] ?? ''));
+
+                if (empty($name)) {
+                    continue;
+                }
+
+                $stmtItem->execute([
+                    $orderId,
+                    $menuId,
+                    $name,
+                    $qty,
+                    $unitPrice,
+                    $lineTotal,
+                    $itemNotes
+                ]);
+
+                $totalBill += $lineTotal;
+            }
+
+            // Update total bill
+            $stmtUpdateTotal = $db->prepare("UPDATE employee_orders SET total_bill = ? WHERE id = ?");
+            $stmtUpdateTotal->execute([$totalBill, $orderId]);
+
+            $db->commit();
+            return $orderId;
+        } catch (\Throwable $e) {
+            $db->rollBack();
+            throw $e;
+        }
+    }
+
+    public static function togglePaid(int $orderId): bool
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("
+            UPDATE employee_orders 
+            SET status = CASE WHEN status = 'paid' THEN 'unpaid' ELSE 'paid' END,
+                updated_at = datetime('now', 'localtime')
+            WHERE id = ?
+        ");
+        return $stmt->execute([$orderId]);
+    }
+
+    public static function delete(int $orderId): bool
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("DELETE FROM employee_orders WHERE id = ?");
+        return $stmt->execute([$orderId]);
+    }
+}