<?php
/**
 * Admin Controller
 */

class AdminController {
    private $view;
    private $db;

    public function __construct() {
        $this->view = new View();
        $this->db = Database::getInstance();
        
        // Admin kontrolü
        if (!$this->isLoggedIn() && !in_array($_SERVER['REQUEST_URI'], ['/admin/login', '/admin/login/check'])) {
            Helper::redirect(Helper::url('/admin/login'));
        }
    }

    public function login() {
        if ($this->isLoggedIn()) {
            Helper::redirect(Helper::url('/admin'));
        }
        
        $this->view->set('page_title', 'Admin Girişi');
        require_once APP_PATH . '/app/views/admin/login.php';
    }

    public function loginCheck() {
        if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
            Helper::redirect(Helper::url('/admin/login'));
        }

        $username = $_POST['username'] ?? '';
        $password = $_POST['password'] ?? '';

        // Varsayılan admin (production'da değiştirin!)
        $adminUsername = 'admin';
        $adminPassword = password_hash('admin123', PASSWORD_DEFAULT); // İlk kurulumda: admin123

        // Veritabanından kontrol et
        $admin = $this->db->fetchOne(
            "SELECT * FROM admins WHERE username = ? AND status = 'active'",
            [$username]
        );

        if ($admin && password_verify($password, $admin['password'])) {
            $_SESSION['admin_id'] = $admin['id'];
            $_SESSION['admin_username'] = $admin['username'];
            Helper::redirect(Helper::url('/admin'));
        } else {
            // Varsayılan admin kontrolü (ilk kurulum için)
            if ($username === $adminUsername && $password === 'admin123') {
                $_SESSION['admin_id'] = 1;
                $_SESSION['admin_username'] = $adminUsername;
                Helper::redirect(Helper::url('/admin'));
            } else {
                $_SESSION['error'] = 'Kullanıcı adı veya şifre hatalı!';
                Helper::redirect(Helper::url('/admin/login'));
            }
        }
    }

    public function index() {
        // İstatistikler
        $stats = [
            'services' => $this->db->fetchOne("SELECT COUNT(*) as total FROM services WHERE status = 'active'")['total'],
            'posts' => $this->db->fetchOne("SELECT COUNT(*) as total FROM posts WHERE status = 'published'")['total'],
            'messages' => $this->db->fetchOne("SELECT COUNT(*) as total FROM contact_messages WHERE status = 'new'")['total'],
            'total_messages' => $this->db->fetchOne("SELECT COUNT(*) as total FROM contact_messages")['total'],
        ];

        // Son mesajlar
        $recent_messages = $this->db->fetchAll(
            "SELECT * FROM contact_messages ORDER BY created_at DESC LIMIT 5"
        );

        $this->view->set('page_title', 'Admin Panel');
        $this->view->set('stats', $stats);
        $this->view->set('recent_messages', $recent_messages);
        require_once APP_PATH . '/app/views/admin/dashboard.php';
    }

    public function logout() {
        session_destroy();
        Helper::redirect(Helper::url('/admin/login'));
    }

    private function isLoggedIn() {
        return isset($_SESSION['admin_id']) && !empty($_SESSION['admin_id']);
    }
}