<?php

class AdmitadTrackingPlugin
{
    protected $container;
    protected $prefix = 'admitadtracking-options';

    public function init()
    {
        $this->getContainer()->getAdmitadManager()->handleUser();

        $this->registerScripts();

        new \Admitad\AdmitadRevision($this->getContainer());
    }

    public function onLogin($login)
    {
        $user = null;

        $uid = $this->getContainer()->getParameters()->getUserId();

        if (function_exists('get_user_by')) {
            $user = get_user_by('login', $login);
        } else {
            if (function_exists('get_userdatabylogin')) {
                $user = get_userdatabylogin($login);
            }
        }

        if (!$user) {
            return;
        }

        $userId = $user->ID;

        update_user_meta($userId, 'admitad_uid', $uid);
    }

    public function handleOrderCreate($orderId)
    {
        $this->getContainer()->getAdmitadManager()->sendPostback($orderId);

        $order = new WC_Order($orderId);
        $order->update_meta_data('admitad_uid', $this->getContainer()->getParameters()->getUserId());
        $order->save_meta_data();
    }

    public function adminInit()
    {
        add_action('wp_enqueue_scripts', array($this, 'registerScripts'));

        $tabs = array(
            new \Admitad\Tab\AuthTab($this->getContainer()),
            new \Admitad\Tab\MainTab($this->getContainer()),
            new \Admitad\Tab\RevisionTab($this->getContainer()),
            new \Admitad\Tab\ActionsTab($this->getContainer()),
        );

        foreach ($tabs as $tab) {
            $tab->init();
        }
    }

    /**
     * Регистрация скриптов в админке
     */
    public function registerScripts()
    {
        $scripts = array(
            'select2' => array(
                'src'     => $this->get_asset_url('assets/js/select2.js'),
                'deps'    => array('jquery'),
                'version' => '1.0',
            ),
        );

        $styles = array(
            'select2' => array(
                'src'     => $this->get_asset_url('assets/css/select2.css'),
                'deps'    => array(),
                'version' => '1.0',
            ),
        );

        foreach ($scripts as $name => $row) {
            wp_register_script($name, $row['src'], $row['deps'], $row['version']);
            wp_enqueue_script($name);
        }

        foreach ($styles as $name => $row) {
            wp_register_style($name, $row['src'], $row['deps'], $row['version']);
            wp_enqueue_style($name);
        }
    }

    protected function getActionPage()
    {
        $current = $this->getCurrentActionName();

        ob_start();

        call_user_func(array($this, $this->getTabs()[$current]['action']));

        return ob_get_clean();
    }

    protected function getCurrentActionName()
    {
        $tabs = $this->getTabs();
        reset($tabs);
        $currentName = key($tabs);

        foreach ($tabs as $name => $tab) {
            if (isset($_GET['action']) && $_GET['action'] == $name) {
                $currentName = $name;
            }
        }

        return $currentName;
    }

    /**
     * @return array
     *
     * Возвращает массив с актуальными вкладками
     */
    protected function getTabs()
    {
        $auth = get_option('admitadtracking_auth');

        if (!$auth['client_id'] || !$auth['client_secret']) {
            $tabs = array('auth' => array('name' => __('Auth', 'admitadtracking')));

            return $tabs;
        }

        $tabs = array(
            'main'     => array('name' => __('Main', 'admitadtracking')),
            'actions'  => array('name' => __('Actions', 'admitadtracking')),
            'revision' => array('name' => __('Revision', 'admitadtracking')),
        );

        return $tabs;
    }

    public function adminMenu()
    {
        add_options_page(__('Admitad tracking', 'admitadtracking'), __('Admitad tracking', 'admitadtracking'), 'manage_options', 'admitadtracking', [$this, 'getOptionsPage']);
    }

    /**
     * Выводит контент страницы настроек
     */
    public function getOptionsPage()
    {
        $current = $this->getCurrentActionName();

        ?>
        <div class="wrap">
            <h1>Admitad Tracking</h1>
            <h2 class="nav-tab-wrapper">
                <?= $this->getOptions() ?>
            </h2>

            <form method="post" action="options.php">
                <?php
                settings_fields('admitadtracking-' . $current . '-page');
                do_settings_sections('admitadtracking-' . $current . '-page');
                ?>
                <p>
                    <?php submit_button(__('Save Changes', 'admitadtracking'), 'primary', 'submit', false); ?>
                    <?php submit_button(__('Reset', 'admitadtracking'), 'default', 'reset', false); ?>
                </p>
            </form>

            <script>
                jQuery(document).ready(function () {
                    jQuery('.select2').select2();
                })
            </script>
        </div> <?php
    }

    /**
     * @return string
     *
     * В зависимости от выбранной вкладки возвращает соответствующий контент
     */
    protected function getOptions()
    {
        $current = $this->getCurrentActionName();

        ob_start();

        foreach ($this->getTabs() as $name => $options) {
            $url = admin_url('admin.php?page=admitadtracking&action=' . $name);
            ?>
            <a href="<?= $url ?>" class="nav-tab <?= $name == $current ? 'nav-tab-active' : '' ?>">
                <?php esc_html_e($options['name']); ?>
            </a>
            <?php
        }

        return ob_get_clean();
    }

    protected function getContainer()
    {
        if (!$this->container) {
            $this->container = new \Admitad\AdmitadContainer();
        }

        return $this->container;
    }

    protected function getSettingName($name)
    {
        return $this->prefix . '-' . $name;
    }

    protected function getSettingGroupName($name)
    {
        return $this->prefix . '-' . $name . '-group';
    }

    private function get_asset_url($path)
    {
        return str_replace(array('http:', 'https:'), '', plugins_url($path, __FILE__));
    }
}