<?php
/**
 * Plugin Name: Dabestaniha Authenticate Bridge
 * Description: Authenticate WordPress user via json web token from Mahakiha Application.
 * Version: 1.0
 * Author: Dabestaniha
 *
 * Example: https://wordpress.test/dabestaniha/login/?token=123&name=asd&email=test@wordpress.test
 */

require_once __DIR__.'/vendor/autoload.php';

use Dabestaniha\AuthenticateBridge\App\Http\Requests\DabestanihaAuthenticateRequest;

add_action('init', function () {
    $request = DabestanihaAuthenticateRequest::make();

    if (!$request->shouldContinue()) {
        return;
    }

    $request->validate();
    $token = $request->string('token');

    $name = $request->string('name');
    $email = $request->string('email');

    $user_id = find_or_create_user($email, $name);

    login_user($user_id);
    wp_redirect(home_url('/dashboard'));
    exit();
});

require_once 'settings-page.php';

function verify_laravel_token_and_get_user_id($token): bool|int
{
    return 0;
}

function find_or_create_user(string $email, string $name): int
{
    $user = get_user_by('email', $email);

    if ($user) {
        return $user->ID;
    }
    $random_password = wp_generate_password(12, true);
    $username = sanitize_user(strstr($email, '@', true));

    if (username_exists($username)) {
        $username .= '_'.wp_generate_password(4, false);
    }

    $user_id = wp_create_user($username, $random_password, $email);

    if (is_wp_error($user_id)) {
        wp_die(view('invalid-token'), 'Invalid Token', ['response' => 500]);
    }

    wp_update_user([
        'ID' => $user_id,
        'display_name' => $name,
    ]);

    return $user_id;
}

function login_user(int $user_id): bool
{
    wp_set_auth_cookie($user_id);
    wp_set_current_user($user_id);
    do_action('wp_login', get_userdata($user_id)->user_login, get_userdata($user_id));
    return true;
}