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 +1,171 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use App\Core\Database\Database;
+use PDO;
+
+class Order
+{
+    public static function all(?string $status = null, ?string $search = null): array
+    {
+        $db = Database::getConnection();
+        $query = "
+            SELECT o.*, c.name as customer_name, c.email as customer_email,
+                   (SELECT COUNT(*) FROM order_items WHERE order_id = o.id) as item_count
+            FROM orders o
+            JOIN customers c ON o.customer_id = c.id
+        ";
+        
+        $conditions = [];
+        $params = [];
+
+        if ($status && $status !== 'all') {
+            $conditions[] = "o.status = :status";
+            $params[':status'] = $status;
+        }
+
+        if ($search) {
+            $conditions[] = "(o.order_number LIKE :search OR c.name LIKE :search OR c.email LIKE :search)";
+            $params[':search'] = "%{$search}%";
+        }
+
+        if (!empty($conditions)) {
+            $query .= " WHERE " . implode(" AND ", $conditions);
+        }
+
+        $query .= " ORDER BY o.id DESC";
+
+        $stmt = $db->prepare($query);
+        $stmt->execute($params);
+        return $stmt->fetchAll();
+    }
+
+    public static function find(int $id): ?array
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("
+            SELECT o.*, c.name as customer_name, c.email as customer_email, 
+                   c.phone as customer_phone, c.address as customer_address
+            FROM orders o
+            JOIN customers c ON o.customer_id = c.id
+            WHERE o.id = ?
+        ");
+        $stmt->execute([$id]);
+        $order = $stmt->fetch();
+
+        if (!$order) {
+            return null;
+        }
+
+        $order['items'] = OrderItem::getByOrderId($id);
+        return $order;
+    }
+
+    public static function count(?string $status = null): int
+    {
+        $db = Database::getConnection();
+        if ($status) {
+            $stmt = $db->prepare("SELECT COUNT(*) FROM orders WHERE status = ?");
+            $stmt->execute([$status]);
+            return (int)$stmt->fetchColumn();
+        }
+        return (int)$db->query("SELECT COUNT(*) FROM orders")->fetchColumn();
+    }
+
+    public static function totalRevenue(): float
+    {
+        $db = Database::getConnection();
+        return (float)$db->query("SELECT COALESCE(SUM(total), 0) FROM orders WHERE status != 'Cancelled'")->fetchColumn();
+    }
+
+    public static function recent(int $limit = 5): array
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("
+            SELECT o.*, c.name as customer_name,
+                   (SELECT COUNT(*) FROM order_items WHERE order_id = o.id) as item_count
+            FROM orders o
+            JOIN customers c ON o.customer_id = c.id
+            ORDER BY o.id DESC
+            LIMIT :limit
+        ");
+        $stmt->bindValue(':limit', $limit, PDO::PARAM_INT);
+        $stmt->execute();
+        return $stmt->fetchAll();
+    }
+
+    public static function createOrderWithItems(array $orderData, array $items): int
+    {
+        $db = Database::getConnection();
+        $db->beginTransaction();
+
+        try {
+            $orderNumber = 'ORD-' . date('Ymd') . '-' . strtoupper(substr(uniqid(), -4));
+
+            $stmt = $db->prepare("
+                INSERT INTO orders (order_number, customer_id, status, subtotal, tax, discount, total, notes) 
+                VALUES (:order_number, :customer_id, :status, :subtotal, :tax, :discount, :total, :notes)
+            ");
+            
+            $stmt->execute([
+                ':order_number' => $orderNumber,
+                ':customer_id' => $orderData['customer_id'],
+                ':status' => $orderData['status'] ?? 'Pending',
+                ':subtotal' => $orderData['subtotal'],
+                ':tax' => $orderData['tax'] ?? 0.00,
+                ':discount' => $orderData['discount'] ?? 0.00,
+                ':total' => $orderData['total'],
+                ':notes' => $orderData['notes'] ?? '',
+            ]);
+
+            $orderId = (int)$db->lastInsertId();
+
+            foreach ($items as $item) {
+                if (empty($item['product_id']) || empty($item['quantity'])) {
+                    continue;
+                }
+
+                $productId = (int)$item['product_id'];
+                $quantity = (int)$item['quantity'];
+                $unitPrice = (float)$item['unit_price'];
+                $totalPrice = $quantity * $unitPrice;
+                $productName = $item['product_name'] ?? 'Item';
+
+                OrderItem::create([
+                    'order_id' => $orderId,
+                    'product_id' => $productId,
+                    'product_name' => $productName,
+                    'quantity' => $quantity,
+                    'unit_price' => $unitPrice,
+                    'total_price' => $totalPrice,
+                ]);
+
+                // Deduct stock inventory
+                Product::deductStock($productId, $quantity);
+            }
+
+            $db->commit();
+            return $orderId;
+        } catch (\Throwable $e) {
+            $db->rollBack();
+            throw $e;
+        }
+    }
+
+    public static function updateStatus(int $id, string $status): bool
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("UPDATE orders SET status = ?, updated_at = datetime('now', 'localtime') WHERE id = ?");
+        return $stmt->execute([$status, $id]);
+    }
+
+    public static function delete(int $id): bool
+    {
+        $db = Database::getConnection();
+        $stmt = $db->prepare("DELETE FROM orders WHERE id = ?");
+        return $stmt->execute([$id]);
+    }
+}