<?php
/**
 * Uninstall routine: removes the tables, options, post meta and files of the plugin.
 *
 * @package Dotes_FAQ_Generator
 */

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

require_once __DIR__ . '/includes/class-dotes-faq-private-files.php';

/**
 * Remove the plugin data for the current site.
 */
function dotes_faq_generator_uninstall_site() {
	global $wpdb;

	$tables = array( 'dotes_faq_helpful', 'dotes_faq_items', 'dotes_faq_groups', 'dotes_faq_categories' );

	// Version 1.1 also created the analytics and display rule tables and the
	// term FAQ meta. They belong to the Pro add-on now: they are only removed
	// here when the add-on is not installed (its own uninstall removes them).
	$pro_installed = file_exists( WP_PLUGIN_DIR . '/dotes-faq-generator-pro/dotes-faq-generator-pro.php' );
	if ( ! $pro_installed ) {
		$tables = array_merge( $tables, array( 'dotes_faq_analytics', 'dotes_faq_targeting' ) );
		delete_metadata( 'term', 0, '_dotes_faq_settings', '', true );
	}

	// phpcs:disable WordPress.DB.DirectDatabaseQuery, WordPress.DB.DirectDatabaseQuery.SchemaChange -- removing the plugin's own tables.
	foreach ( $tables as $suffix ) {
		$wpdb->query( $wpdb->prepare( 'DROP TABLE IF EXISTS %i', $wpdb->prefix . $suffix ) );
	}
	// phpcs:enable

	foreach ( array( 'dotes_faq_generator_settings', 'dotes_faq_generator_db_version', 'dotes_faq_generator_db_error', 'dotes_faq_performance_indexes_applied' ) as $option ) {
		delete_option( $option );
	}
	delete_transient( 'dotes_faq_generator_db_retry' );

	delete_metadata( 'post', 0, '_dotes_faq_settings', '', true );

	Dotes_FAQ_Private_Files::delete_all();
}

if ( is_multisite() ) {
	foreach ( get_sites( array( 'fields' => 'ids' ) ) as $dotes_faq_site_id ) {
		switch_to_blog( $dotes_faq_site_id );
		dotes_faq_generator_uninstall_site();
		restore_current_blog();
	}
} else {
	dotes_faq_generator_uninstall_site();
}