<?php
/**
 * Uninstall routine.
 *
 * Data is removed only when the site owner turned on
 * "Delete all data on uninstall" in SpaceBay settings.
 *
 * @package SpaceBay
 */

defined( 'WP_UNINSTALL_PLUGIN' ) || exit;

require_once __DIR__ . '/includes/Autoloader.php';

SpaceBay\Autoloader::register();

/**
 * Removes SpaceBay data from the current site when the owner opted in.
 *
 * @return void
 */
function spacebay_uninstall_site() {
	global $wpdb;

	$settings = get_option( 'spacebay_settings', array() );

	if ( empty( $settings['delete_data_on_uninstall'] ) ) {
		return;
	}

	SpaceBay\Database\Schema::drop();
	SpaceBay\Core\Capabilities::remove();

	// Remove the moderator capability given to single members.
	foreach ( get_users(
		array(
			'capability' => SpaceBay\Core\Capabilities::MODERATE,
			'fields'     => 'all',
		)
	) as $spacebay_user ) {
		$spacebay_user->remove_cap( SpaceBay\Core\Capabilities::MODERATE );
	}

	$options = array(
		'spacebay_settings',
		'spacebay_db_version',
		'spacebay_installed_at',
		'spacebay_flush_rewrite',
		'spacebay_activation_redirect',
		'spacebay_setup_done',
		'spacebay_points_backfilled',
		'spacebay_demo_spaces',
		'spacebay_demo_topics',
		'spacebay_demo_posts',
		'spacebay_demo_conversations',
		'spacebay_demo_events',
	);

	foreach ( $options as $option ) {
		delete_option( $option );
	}

	delete_transient( 'spacebay_admin_stats' );
	delete_option( 'spacebay_profile_fields' );
	wp_unschedule_hook( 'spacebay_send_notification_email' );
	wp_unschedule_hook( 'spacebay_notification_emails' );
	wp_unschedule_hook( 'spacebay_message_email' );
	wp_clear_scheduled_hook( 'spacebay_daily' );
	wp_clear_scheduled_hook( 'spacebay_event_reminders' );
	wp_unschedule_hook( 'spacebay_event_notify' );

	// Remove uploaded member images: public ones and the private folder.
	$uploads = wp_get_upload_dir();

	foreach ( array( 'spacebay', 'spacebay-private' ) as $spacebay_folder ) {
		$folder = trailingslashit( $uploads['basedir'] ) . $spacebay_folder;

		if ( is_dir( $folder ) ) {
			global $wp_filesystem;

			require_once ABSPATH . 'wp-admin/includes/file.php';

			if ( WP_Filesystem() ) {
				$wp_filesystem->rmdir( $folder, true );
			}
		}
	}

	delete_option( 'spacebay_private_media_dir' );

	// Remove cached link previews and rate-limit counters.
	$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		$wpdb->prepare(
			"DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s",
			$wpdb->esc_like( '_transient_spacebay_' ) . '%',
			$wpdb->esc_like( '_transient_timeout_spacebay_' ) . '%'
		)
	);

	// Remove this site's user settings; keys are "{site prefix}spacebay_*".
	$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		$wpdb->prepare(
			"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s",
			$wpdb->esc_like( $wpdb->get_blog_prefix() . 'spacebay_' ) . '%'
		)
	);

	// Unprefixed keys are shared by every site of a network, so they are only removed on single sites.
	if ( ! is_multisite() ) {
		$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
			$wpdb->prepare(
				"DELETE FROM {$wpdb->usermeta} WHERE meta_key LIKE %s",
				$wpdb->esc_like( 'spacebay_' ) . '%'
			)
		);
	}
}

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

	foreach ( $spacebay_site_ids as $spacebay_site_id ) {
		switch_to_blog( $spacebay_site_id );
		spacebay_uninstall_site();
		restore_current_blog();
	}
} else {
	spacebay_uninstall_site();
}