<?php
/**
 * Uninstall SiteSEO
 *
 * @since 6.2
 *
 * author Softaculous, inspired by Polylang
 */

if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) { // If uninstall not called from WordPress exit
	exit;
}

class SITESEO_Uninstall {

	/**
	 * Constructor: manages uninstall for multisite
	 *
	 * @since 6.2
	 */
	public function __construct() {
		global $wpdb;

		// Don't do anything except if the constant SITESEO_UNINSTALL is explicitely defined and true.
		if ( ! defined( 'SITESEO_UNINSTALL' ) || ! SITESEO_UNINSTALL ) {
			return;
		}

		// Check if it is a multisite uninstall - if so, run the uninstall function for each blog id
		if ( is_multisite() ) {
			foreach ( $wpdb->get_col( "SELECT blog_id FROM $wpdb->blogs" ) as $blog_id ) {
				switch_to_blog( $blog_id );
				$this->uninstall();
			}
			restore_current_blog();
		}
		else {
			$this->uninstall();
		}
	}

	/**
	 * Delete all entries in the DB related to SiteSEO Free AND PRO:
	 * Transients, post meta, options, custom tables
	 *
	 * @since 6.2
	 */
	public function uninstall() {
		global $wpdb;

		do_action( 'siteseo_uninstall' );

		// Delete post meta
		$wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_key LIKE '_siteseo_%'" );

		// Delete global settings
		$options = $wpdb->get_col( "SELECT option_name FROM $wpdb->options WHERE option_name LIKE 'siteseo_%'" );
		array_map( 'delete_option', $options );

		// Delete widget options
		$options = $wpdb->get_col( "SELECT option_name FROM $wpdb->options WHERE option_name LIKE 'widget_siteseo_%'" );
		array_map( 'delete_option', $options );

		// Delete transients
		delete_transient( '_siteseo_sitemap_ids_video' );
		delete_transient( 'siteseo_results_page_speed' );
		delete_transient( 'siteseo_results_page_speed_desktop' );
		delete_transient( 'siteseo_results_google_analytics' );
		delete_transient( 'siteseo_results_matomo' );
		delete_transient( 'siteseo_prevent_title_redirection_already_exist' );

		// Delete custom tables
		$wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}siteseo_significant_keywords");
	}
}

new SITESEO_Uninstall();