<?php

namespace mp_timetable\classes\controllers;

use mp_timetable\classes\models\Settings;
use mp_timetable\plugin_core\classes\Controller as Controller;
use mp_timetable\plugin_core\classes\View;

/**
 * Class Controller_Settings
 * @package mp_timetable\classes\controllers
 */
class Controller_Settings extends Controller {

	protected static $instance;

	/**
	 * @return Controller_Settings
	 */
	public static function get_instance() {
		if (null === self::$instance) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Action template
	 */
	public function action_content() {

		if ( current_user_can('manage_options') ) {

			$data = Settings::get_instance()->get_settings();
			$theme_supports = $this->get('Settings')->is_theme_supports();

			View::get_instance()->render_html('../templates/settings/general', array('settings' => $data, 'theme_supports' => $theme_supports));

		} else {
			wp_die( sprintf( 'Access denied, %s, %s', __FUNCTION__, basename( __FILE__ ) ) );
		}
	}

	/**
	 * Save settings
	 */
	public function action_save() {

		if ( empty( $_GET['page'] ) || wp_unslash( $_GET['page'] ) !== 'mptt-settings' ) {
			return;
		}

		if ( isset( $_POST['mp-timetable-save-settings'] ) &&
			wp_verify_nonce( sanitize_key( $_POST['mp-timetable-save-settings'] ), 'mp_timetable_nonce_settings') ) {

			$redirect = Settings::get_instance()->save_settings();

			wp_safe_redirect(
				add_query_arg(
					array(
						'page' => sanitize_key( $_GET['page'] ),
						'settings-updated' => 'true'
					),
					admin_url( 'edit.php?post_type=mp-event')
				)
			);
			exit;
		}

		/**
		 * Show success message
		 */
		if ( isset( $_GET['settings-updated'] ) && ( filter_var( $_GET['settings-updated'], FILTER_VALIDATE_BOOLEAN) == TRUE ) ) {
			add_settings_error('mpTimetableSettings', esc_attr('settings_updated'), __('Settings saved.', 'mp-timetable'), 'updated');
		}
	}
}