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Editing:ajax_operations.php

<?php
// admin/ajax_operations.php

header('Content-Type: application/json');

require_once '../includes/db.php';
require_once '../includes/functions.php';

// Extract requested action
$action = $_POST['action'] ?? '';

if (empty($action)) {
    echo json_encode(['success' => false, 'message' => 'No action parameters specified.']);
    exit;
}

try {
    // 1. DELETE ORDER ACTION
    if ($action === 'delete_order') {
        $id = isset($_POST['id']) ? (int)$_POST['id'] : 0;
        
        if ($id <= 0) {
            echo json_encode(['success' => false, 'message' => 'Invalid order identifier.']);
            exit;
        }

// Fetch order to clean up its reference image
        $stmt = $pdo->prepare("SELECT image FROM orders WHERE id = ?");
        $stmt->execute([$id]);
        $order = $stmt->fetch();

if ($order) {
            // Delete reference photo from uploads directory
            if (!empty($order['image'])) {
                $image_path = '../uploads/' . $order['image'];
                if (file_exists($image_path)) {
                    unlink($image_path);
                }
            }

// Remove order record from database
            $delete_stmt = $pdo->prepare("DELETE FROM orders WHERE id = ?");
            $delete_stmt->execute([$id]);

echo json_encode([
                'success' => true,
                'message' => 'Order was successfully deleted from the system.'
            ]);
            exit;
        } else {
            echo json_encode(['success' => false, 'message' => 'Order not found in database.']);
            exit;
        }
    } 
    
    // 2. UPDATE STATUS ACTION
    elseif ($action === 'update_status') {
        $id = isset($_POST['id']) ? (int)$_POST['id'] : 0;
        $status = $_POST['status'] ?? '';
        $valid_statuses = ['Pending', 'Confirmed', 'Processing', 'Completed', 'Cancelled'];

if ($id <= 0 || !in_array($status, $valid_statuses)) {
            echo json_encode(['success' => false, 'message' => 'Invalid parameters passed for status update.']);
            exit;
        }

// Update the order status
        $update_stmt = $pdo->prepare("UPDATE orders SET status = ? WHERE id = ?");
        $update_stmt->execute([$status, $id]);

echo json_encode([
            'success' => true,
            'message' => 'Order status has been updated to ' . $status . '.'
        ]);
        exit;
    } 
    
    // 3. UNKNOWN ACTION FALLBACK
    else {
        echo json_encode(['success' => false, 'message' => 'Requested action is invalid.']);
        exit;
    }

} catch (Exception $e) {
    echo json_encode([
        'success' => false,
        'message' => 'Server error: ' . $e->getMessage()
    ]);
    exit;
}
?>

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Editing:ajax_operations.php