<?php
namespace App\Controllers;

session_start();

use App\Models\User;

class AuthController {
    private $userModel;

    public function __construct() {
        $this->userModel = new User();
    }

    public function register($name, $email, $password) {
        if ($this->userModel->findByEmail($email)) {
            return ['error' => 'Email already exists'];
        }

        $result = $this->userModel->register($name, $email, $password);
        
        if ($result) {
            $user = $this->userModel->findByEmail($email);
            $_SESSION['user_id'] = $user['id'];
            return ['success' => true, 'user' => $user];
        }

        return ['error' => 'Registration failed'];
    }

    public function login($email, $password) {
        $user = $this->userModel->login($email, $password);
        
        if ($user) {
            $_SESSION['user_id'] = $user['id'];
            return ['success' => true, 'user' => $user];
        }

        return ['error' => 'Invalid credentials'];
    }

    public function logout() {
        session_destroy();
        return ['success' => true];
    }

    public static function isAuthenticated() {
        return isset($_SESSION['user_id']);
    }

    public static function getCurrentUserId() {
        return $_SESSION['user_id'] ?? null;
    }
}