<?php
/**
 * Uninstall routine.
 *
 * @package OrbitstemSEO
 */

namespace Orbitstem\SEO\Core;

use Orbitstem\SEO\Content\MetaRepository;

defined( 'ABSPATH' ) || exit;

/**
 * Removes temporary state always, and user data only when the site owner
 * ticked "Delete all Orbitstem SEO data" before deleting the plugin.
 */
class Uninstaller {

	/**
	 * Runs on every site of a network, or on the single site.
	 */
	public static function run() {
		if ( ! is_multisite() ) {
			self::uninstall_site();
			return;
		}
		$site_ids = get_sites(
			array(
				'fields' => 'ids',
				'number' => 0,
			)
		);
		foreach ( $site_ids as $site_id ) {
			switch_to_blog( $site_id );
			self::uninstall_site();
			restore_current_blog();
		}
	}

	/**
	 * Uninstalls on the current site.
	 *
	 * @return bool Whether user data was deleted.
	 */
	public static function uninstall_site() {
		global $wpdb;

		wp_clear_scheduled_hook( Jobs::HOOK );
		delete_option( Jobs::LOCK );
		delete_option( Migrations::LOCK );
		// No core API lists options by prefix; delete_option() keeps the cache consistent.
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery
		$job_options = $wpdb->get_col( $wpdb->prepare( "SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s", $wpdb->esc_like( Jobs::STATE_PREFIX ) . '%' ) );
		foreach ( $job_options as $option ) {
			delete_option( $option );
		}

		// Scan results are a rebuildable cache, so they always go. Lowering the
		// schema version makes a reinstall recreate the tables.
		\Orbitstem\SEO\Diagnostics\Tables::drop();
		\Orbitstem\SEO\Diagnostics\Tables::drop_logs();
		wp_clear_scheduled_hook( 'orbitstem_seo_daily' );
		wp_clear_scheduled_hook( 'orbitstem_seo_monitor' );
		wp_clear_scheduled_hook( 'orbitstem_seo_scheduled_scan' );
		delete_option( 'orbitstem_seo_autopilot_last' );
		delete_option( 'orbitstem_seo_autopilot_user' );
		delete_option( 'orbitstem_seo_monitor_alert' );
		delete_option( 'orbitstem_seo_guardian_pending' );
		delete_option( 'orbitstem_seo_head_scan' );
		delete_option( 'orbitstem_seo_last_scan' );
		wp_clear_scheduled_hook( 'orbitstem_seo_indexnow_submit' );
		wp_clear_scheduled_hook( 'orbitstem_seo_indexnow_send' );
		delete_option( 'orbitstem_seo_indexnow_queue' );
		delete_option( 'orbitstem_seo_indexnow_log' );
		delete_option( 'orbitstem_seo_indexnow_recent' );
		wp_clear_scheduled_hook( 'orbitstem_seo_update_guard' );
		wp_clear_scheduled_hook( 'orbitstem_seo_guard_baseline_build' );
		// The "plain language" view choice on SEO Issues, kept per user.
		delete_metadata( 'user', 0, 'orbitstem_seo_simple', '', true );
		foreach ( array( 'orbitstem_seo_guard_baseline', 'orbitstem_seo_guard_alert', 'orbitstem_seo_guard_pending', 'orbitstem_seo_health_last', 'orbitstem_seo_review_state', 'orbitstem_seo_setup_done' ) as $option ) {
			delete_option( $option );
		}
		delete_transient( 'orbitstem_seo_issue_summary' );
		// Every Orbitstem transient: notices, repair results, CSV previews, counts.
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery
		$transients = $wpdb->get_col( $wpdb->prepare( "SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s", $wpdb->esc_like( '_transient_orbitstem_seo_' ) . '%' ) );
		foreach ( $transients as $option ) {
			delete_transient( substr( $option, strlen( '_transient_' ) ) );
		}
		delete_transient( 'orbitstem_seo_coverage' );
		delete_option( 'orbitstem_seo_snapshot_source' );
		if ( (int) get_option( Migrations::OPTION, 0 ) > 1 ) {
			update_option( Migrations::OPTION, 1, true );
		}

		$settings = get_option( Settings::OPTION, array() );
		if ( empty( $settings['delete_data_on_uninstall'] ) ) {
			return false;
		}

		\Orbitstem\SEO\Diagnostics\Tables::drop_user_data();
		\Orbitstem\SEO\Diagnostics\Tables::drop_monitor();
		delete_option( Settings::OPTION );
		delete_option( Migrations::OPTION );
		delete_option( 'orbitstem_seo_regex_redirects' );
		delete_option( 'orbitstem_seo_import_source' );
		delete_option( 'orbitstem_seo_indexnow_key' );
		foreach ( array_merge( MetaRepository::meta_keys(), array( '_orbitstem_seo_imported' ) ) as $key ) {
			delete_metadata( 'post', 0, $key, '', true );
			delete_metadata( 'term', 0, $key, '', true );
		}
		return true;
	}
}