<?php
/**
 * Plugin Name: AutoBooking Nav Guard
 * Version:     1.1.0
 * Description: Protege páginas por token de navegación. Redirige al login/home si no hay token válido.
 */

defined('ABSPATH') || exit;

/* ── Páginas protegidas: destino => URL ────────────────────────────── */
define('AB_NAV_PAGES', [
    'driver'    => '/driver-dashboard-2/',
    'passenger' => '/customer-dashboard/',
    'corporate' => '/corporate-dashboard/',
]);

/* ── Session ───────────────────────────────────────────────────────── */
add_action('init', function () {
    if (!session_id() && !headers_sent()) session_start();
}, 1);

/* ── Roles permitidos por destino ───────────────────────────────────── */
function ab_nav_allowed_roles() {
    return [
        'driver'    => ['driver', 'driver_pending'],
        'passenger' => ['subscriber', 'customer'],
        'corporate' => ['corporate_admin'],
    ];
}

/* ── Protección via template_redirect (antes de cualquier output) ──── */
add_action('template_redirect', function () {
    global $post;
    if (!$post) return;

    $dest = get_post_meta($post->ID, '_ab_nav_page', true);
    if (!$dest) return;

    if (!is_user_logged_in()) {
        wp_redirect(wp_login_url(get_permalink()));
        exit;
    }

    $uid   = get_current_user_id();
    $user  = wp_get_current_user();
    $roles = (array) $user->roles;

    // Admins y manage_autobooking: acceso siempre sin token
    if (in_array('administrator', $roles) || user_can($uid, 'manage_autobooking')) {
        return;
    }

    if (!session_id()) session_start();
    $token = $_SESSION['ab_nav'][$dest] ?? null;

    // Token válido → pasar
    if ($token && $token['user'] === $uid && $token['exp'] >= time()) {
        return;
    }

    // Sin token pero tiene el rol correcto → auto-token y pasar
    $allowed = ab_nav_allowed_roles()[$dest] ?? [];
    if (array_intersect($roles, $allowed)) {
        $_SESSION['ab_nav'][$dest] = ['user' => $uid, 'exp' => time() + 300];
        return;
    }

    // Rol incorrecto para esta página → home
    wp_redirect(home_url('/'));
    exit;
});

/* ── Auto-token en login → acceso directo al dashboard ─────────────── */
add_action('wp_login', function ($login, $user) {
    if (!session_id()) session_start();
    $roles = (array) $user->roles;
    $exp   = time() + 300;

    $role_map = [
        'driver'          => 'driver',
        'driver_pending'  => 'driver',
        'subscriber'      => 'passenger',
        'customer'        => 'passenger',
        'corporate_admin' => 'corporate',
    ];
    foreach ($role_map as $role => $dest) {
        if (in_array($role, $roles, true)) {
            $_SESSION['ab_nav'][$dest] = ['user' => $user->ID, 'exp' => $exp];
        }
    }
    if (user_can($user->ID, 'manage_autobooking') || in_array('administrator', $roles, true)) {
        foreach (array_keys(AB_NAV_PAGES) as $dest) {
            $_SESSION['ab_nav'][$dest] = ['user' => $user->ID, 'exp' => $exp];
        }
    }
}, 10, 2);

/* ── Redirect post-login al dashboard según rol ────────────────────── */
add_filter('login_redirect', function ($redirect, $request, $user) {
    if (is_wp_error($user)) return $redirect;
    $roles = (array) $user->roles;

    if (in_array('driver', $roles) || in_array('driver_pending', $roles))
        return home_url(AB_NAV_PAGES['driver']);
    if (in_array('corporate_admin', $roles))
        return home_url(AB_NAV_PAGES['corporate']);
    if (in_array('subscriber', $roles) || in_array('customer', $roles))
        return home_url(AB_NAV_PAGES['passenger']);

    return $redirect;
}, 10, 3);

/* ── REST: generar token desde JS ───────────────────────────────────── */
add_action('rest_api_init', function () {
    register_rest_route('ab/v1', '/nav-token', [
        'methods'             => 'POST',
        'callback'            => function (WP_REST_Request $req) {
            $dest = sanitize_text_field($req->get_param('destination'));
            if (!$dest) return new WP_Error('missing', 'destination required', ['status' => 400]);
            if (!session_id()) session_start();
            $_SESSION['ab_nav'][$dest] = ['user' => get_current_user_id(), 'exp' => time() + 300];
            return rest_ensure_response(['ok' => true, 'destination' => $dest]);
        },
        'permission_callback' => fn() => is_user_logged_in(),
    ]);
});

/* ── JS helper global ───────────────────────────────────────────────── */
add_action('wp_footer', function () {
    if (!is_user_logged_in()) return;
    echo '<script>window.ab_nav_go=function(dest,url){'
        . 'fetch(' . json_encode(rest_url('ab/v1/nav-token')) . ','
        . '{method:"POST",headers:{"Content-Type":"application/json","X-WP-Nonce":' . json_encode(wp_create_nonce('wp_rest')) . '},'
        . 'body:JSON.stringify({destination:dest})})'
        . '.then(r=>r.json()).then(d=>{if(d.ok)window.location.href=url||"/"});'
        . '};</script>';
});

/* ── Limpieza de tokens expirados ───────────────────────────────────── */
add_action('init', function () {
    if (!session_id() || empty($_SESSION['ab_nav'])) return;
    $now = time();
    foreach ($_SESSION['ab_nav'] as $k => $d) {
        if ($d['exp'] < $now) unset($_SESSION['ab_nav'][$k]);
    }
}, 5);