<?php
session_start();
require_once 'db/config.php';

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $username = $_POST['username'];
    $password = $_POST['password'];

    $pdo = db();
    $stmt = $pdo->prepare("SELECT * FROM users WHERE username = ?");
    $stmt->execute([$username]);
    $user = $stmt->fetch();

    if ($user && password_verify($password, $user['password'])) {
        $_SESSION['user_id'] = $user['id'];
        $_SESSION['username'] = $user['username'];
        $_SESSION['is_admin'] = $user['is_admin'];
        header('Location: index.php');
        exit;
    } else {
        header('Location: index.php?error=1');
        exit;
    }
}
?>