<?php
/**
 * WorkMore Cookie Crumb uninstall handler.
 *
 * Removes plugin data ONLY when the site opted in via the
 * `wmcc_delete_data_on_uninstall` option: the consent log, the daily
 * statistics, the banner (draft and published) and the settings. Without
 * the opt-in everything is kept — a consent log is a record the site owner
 * may be asked for, and reinstalling later loses nothing. The daily task
 * goes either way: there is no plugin left to run it.
 *
 * @package WorkMoreCookieCrumb
 */

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

if ( ! function_exists( 'wmcc_uninstall_site' ) ) {
	/**
	 * Delete plugin data for the current site, when it opted in.
	 *
	 * Every name is listed — never a prefix, which would also match data
	 * this plugin does not own.
	 *
	 * @return void
	 */
	function wmcc_uninstall_site(): void {
		// The daily task (Core\Schedule). Deactivating removed it already,
		// unless the plugin was never deactivated the usual way.
		wp_clear_scheduled_hook( 'wmcc_daily' );

		if ( ! get_option( 'wmcc_delete_data_on_uninstall' ) ) {
			return;
		}

		global $wpdb;

		// The tables (Database\Schema): the consent log and the daily counters.
		foreach ( array( 'wmcc_consent_log', 'wmcc_daily_stats' ) as $wmcc_table ) {
			// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange -- Uninstall-time cleanup of the plugin's own tables; %i quotes the name.
			$wpdb->query( $wpdb->prepare( 'DROP TABLE IF EXISTS %i', $wpdb->prefix . $wmcc_table ) );
		}

		// The draft and the published snapshot (Consent\Store), what the public
		// site reads (Consent\Manifest), the schema version (Database\Schema)
		// and the opt-in itself (Core\Settings).
		foreach ( array( 'wmcc_draft', 'wmcc_published', 'wmcc_public', 'wmcc_public_texts', 'wmcc_scan', 'wmcc_scan_pages', 'wmcc_setup_done', 'wmcc_interface', 'wmcc_db_version', 'wmcc_delete_data_on_uninstall' ) as $wmcc_option ) {
			delete_option( $wmcc_option );
		}

		// Drafts kept for preview (Frontend\Preview), one transient per user,
		// and the notes of a scan that was under way (Scan\Session).
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- Uninstall-time cleanup; the cache is flushed below.
		$wmcc_previews = $wpdb->get_col(
			$wpdb->prepare(
				"SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s OR option_name LIKE %s OR option_name LIKE %s",
				$wpdb->esc_like( '_transient_wmcc_preview_' ) . '%',
				$wpdb->esc_like( '_transient_timeout_wmcc_preview_' ) . '%',
				$wpdb->esc_like( '_transient_wmcc_scan_' ) . '%',
				$wpdb->esc_like( '_transient_timeout_wmcc_scan_' ) . '%'
			)
		);

		foreach ( $wmcc_previews as $wmcc_preview ) {
			delete_option( (string) $wmcc_preview );
		}

		wp_cache_flush();
	}
}//end if

if ( is_multisite() ) {
	$wmcc_site_ids = get_sites(
		array(
			'fields' => 'ids',
			'number' => 0,
		)
	);

	foreach ( $wmcc_site_ids as $wmcc_site_id ) {
		switch_to_blog( (int) $wmcc_site_id );
		wmcc_uninstall_site();
		restore_current_blog();
	}
} else {
	wmcc_uninstall_site();
}