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

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

    try {
        $stmt = $db->prepare("SELECT * FROM users WHERE username = :username");
        $stmt->execute(['username' => $username]);
        $user = $stmt->fetch();

        if ($user && password_verify($password, $user['password'])) {
            $_SESSION['user_id'] = $user['id'];
            $_SESSION['user_name'] = $user['name'];
            $_SESSION['user_role'] = $user['role'];
            
            header('Location: ../dashboard.php');
            exit;
        } else {
            $_SESSION['error'] = 'Usuario o contraseña incorrectos.';
            header('Location: ../index.php');
            exit;
        }
    } catch (PDOException $e) {
        $_SESSION['error'] = 'Error del sistema. Contacte al administrador.';
        header('Location: ../index.php');
        exit;
    }
} else {
    header('Location: ../index.php');
    exit;
}
?>