<?php
/**
 * Manage permalink update
 *
 * @package Tutor
 * @author Themeum <support@themeum.com>
 * @link https://themeum.com
 * @since 2.6.0
 */

namespace TUTOR;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Permalink Class
 *
 * @since 2.6.0
 */
class Permalink {

	const TRANS_KEY = 'tutor_permalink_update_required';

	/**
	 * Register hooks
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public function __construct() {
		add_action( 'init', array( $this, 'update_permalink' ) );

		add_action( 'tutor_setup_finished', array( $this, 'set_permalink_flag' ) );

		add_action( 'tutor_option_course_permalink_base_changed', array( $this, 'listen_tutor_setting_changes' ), 10, 2 );
		add_action( 'tutor_option_lesson_permalink_base_changed', array( $this, 'listen_tutor_setting_changes' ), 10, 2 );
		add_action( 'tutor_option_quiz_permalink_base_changed', array( $this, 'listen_tutor_setting_changes' ), 10, 2 );
		add_action( 'tutor_option_assignment_permalink_base_changed', array( $this, 'listen_tutor_setting_changes' ), 10, 2 );
	}

	/**
	 * Check permalink update is required or not.
	 *
	 * @since 2.6.0
	 *
	 * @return bool
	 */
	public static function update_required() {
		return (bool) get_transient( self::TRANS_KEY );
	}

	/**
	 * Set permalink update required flag
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public static function set_permalink_flag() {
		set_transient( self::TRANS_KEY, true, HOUR_IN_SECONDS );
	}

	/**
	 * Listen tutor settings changes to update permalink.
	 *
	 * @since 2.6.0
	 *
	 * @param mixed $from from.
	 * @param mixed $to to.
	 *
	 * @return void
	 */
	public function listen_tutor_setting_changes( $from, $to ) {
		if ( $from !== $to ) {
			self::set_permalink_flag();
		}
	}

	/**
	 * Update permalink when required.
	 *
	 * @since 2.6.0
	 *
	 * @return void
	 */
	public function update_permalink() {
		if ( ! self::update_required() ) {
			return;
		}

		update_option( 'permalink_structure', '/%postname%/' );
		flush_rewrite_rules();

		delete_transient( self::TRANS_KEY );
	}

	/**
	 * Set or reset the permalink flag for Tutor LMS.
	 *
	 * Used to trigger permalink flush for Tutor LMS when certain upgrade
	 * processes are completed. This function is typically called during
	 * the upgrader_process_complete action hook.
	 *
	 * @since 4.0.0
	 *
	 * @param mixed  $upgrader_object Upgrader instance.
	 * @param array  $options         Extra arguments passed to the hook.
	 * @param string $basename         Plugin basename.
	 * @param array  $text_domain         Text domain.
	 *
	 * @return void
	 */
	public static function set_permalink_reset_flag( $upgrader_object, $options, $basename = '', $text_domain = '' ) {
		$our_plugin  = empty( $basename ) ? tutor()->basename : $basename;
		$text_domain = empty( $text_domain ) ? 'tutor' : $text_domain;

		if ( ! is_a( $upgrader_object, 'WP_Upgrader' ) ) {
			return;
		}

		if ( is_array( $options ) && 'update' === $options['action'] && 'plugin' === $options['type'] && isset( $options['plugins'] ) ) {
			// Iterate through the plugins being updated and check if ours is there.
			foreach ( $options['plugins'] as $plugin ) {
				if ( $plugin === $our_plugin ) {
					self::set_permalink_flag();
					break;
				}
			}
		} else {
			$plugin_data = $upgrader_object->new_plugin_data ?? null;
			if ( is_array( $plugin_data ) && ! empty( $plugin_data['TextDomain'] ) ) {
				$new_text_domain = strtolower( $plugin_data['TextDomain'] );
				if ( $text_domain === $new_text_domain ) {
					self::set_permalink_flag();
				}
			}
		}
	}
}