<?php
/**
 * Uninstall (runs when the plugin is deleted from the Plugins screen).
 *
 * Deleting the plugin is often only a step in installing a new version or in
 * moving to HandyMCP Pro, so by default the data stays: activity, undo
 * history, connected apps, tokens and settings are all there again when the
 * plugin (or HandyMCP Pro) is installed. Everything is removed only when
 * "Remove all data when the plugin is deleted" is on in Settings, or
 * HANDYMCP_REMOVE_ALL_DATA is true in wp-config.php.
 *
 * HandyMCP Pro uses the same data. When it is installed, nothing is removed.
 *
 * @package HandyMCP
 */

defined( 'WP_UNINSTALL_PLUGIN' ) || exit;

if ( ! function_exists( 'get_plugins' ) ) {
	require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
foreach ( array_keys( get_plugins() ) as $handymcp_file ) {
	if ( in_array( basename( $handymcp_file ), array( 'handymcp-pro.php' ), true ) ) {
		return; // Another copy of the server is installed and uses the same data.
	}
}

/**
 * Remove this plugin's scheduled tasks and, when asked for, its data from the current site.
 */
function handymcp_uninstall_site(): void {
	delete_metadata( 'user', 0, 'handymcp_review', '', true );
	global $wpdb;

	wp_clear_scheduled_hook( 'handymcp_daily_maintenance' );
	wp_clear_scheduled_hook( 'handymcp_diag_daily' );
	wp_clear_scheduled_hook( 'handymcp_error_report' );
	wp_clear_scheduled_hook( 'handymcp_discovery_probe' );

	$settings = get_option( 'handymcp_settings', array() );
	$remove   = ( defined( 'HANDYMCP_REMOVE_ALL_DATA' ) && HANDYMCP_REMOVE_ALL_DATA ) || ( is_array( $settings ) && ! empty( $settings['delete_data'] ) );
	if ( ! $remove ) {
		return;
	}

	foreach ( array( 'tokens', 'oauth_clients', 'oauth_codes', 'sessions', 'log', 'history' ) as $table ) {
		$wpdb->query( $wpdb->prepare( 'DROP TABLE IF EXISTS %i', $wpdb->prefix . 'handymcp_' . $table ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange -- removing this plugin's tables on uninstall.
	}
	$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- removing this plugin's options on uninstall.
		$wpdb->prepare(
			"DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s OR option_name LIKE %s",
			$wpdb->esc_like( 'handymcp_' ) . '%',
			$wpdb->esc_like( '_transient_handymcp_' ) . '%',
			$wpdb->esc_like( '_transient_timeout_handymcp_' ) . '%'
		)
	);
	// Backups of replaced images: their files sit next to the image in the uploads folder.
	$handymcp_base = realpath( (string) wp_upload_dir( null, false )['basedir'] );
	foreach ( get_posts( array( 'post_type' => 'attachment', 'post_status' => 'any', 'numberposts' => -1, 'fields' => 'ids', 'meta_key' => '_handymcp_replace_backup' ) ) as $handymcp_id ) { // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_key -- one-time cleanup on uninstall.
		$handymcp_backup = get_post_meta( (int) $handymcp_id, '_handymcp_replace_backup', true );
		$handymcp_dir    = realpath( dirname( (string) get_attached_file( (int) $handymcp_id ) ) );
		if ( ! $handymcp_base || ! $handymcp_dir || 0 !== strpos( wp_normalize_path( $handymcp_dir ) . '/', trailingslashit( wp_normalize_path( $handymcp_base ) ) ) || ! is_array( $handymcp_backup ) ) {
			continue;
		}
		foreach ( (array) ( $handymcp_backup['backups'] ?? array() ) as $handymcp_bak ) {
			$handymcp_path = trailingslashit( $handymcp_dir ) . wp_basename( (string) $handymcp_bak );
			if ( false !== strpos( wp_basename( $handymcp_path ), '.bak-' ) && is_file( $handymcp_path ) ) {
				wp_delete_file( $handymcp_path );
			}
		}
	}
	delete_post_meta_by_key( '_handymcp_replace_backup' );
	delete_post_meta_by_key( '_handymcp_file_version' );
	foreach ( array( 'handymcp_pro_free_notice', 'handymcp_hidden_pro', 'handymcp_hub_busy_until' ) as $handymcp_key ) {
		delete_metadata( 'user', 0, $handymcp_key, '', true );
	}
	delete_option( 'handymcp_free_scopes' );
	$sections = get_posts(
		array(
			'post_type'   => 'handymcp_section',
			'post_status' => array_keys( get_post_stati() ),
			'numberposts' => -1,
			'fields'      => 'ids',
		)
	);
	foreach ( $sections as $section_id ) {
		wp_delete_post( (int) $section_id, true );
	}
	delete_metadata( 'user', 0, 'handymcp_hidden_pro', '', true );
}

if ( is_multisite() ) {
	foreach ( get_sites( array( 'fields' => 'ids', 'number' => 0 ) ) as $handymcp_site_id ) {
		switch_to_blog( (int) $handymcp_site_id );
		handymcp_uninstall_site();
		restore_current_blog();
	}
} else {
	handymcp_uninstall_site();
}