<?php
/**
 * Uninstall cleanup: removes the map configurations, the credentials,
 * the capabilities, and — only when the user opted in — stored
 * coordinate post meta.
 *
 * @package Mapsemble
 */

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

/**
 * Every capability the plugin defines.
 *
 * Repeated here rather than read from Mapsemble\Capabilities, because the
 * plugin's autoloader is not running during uninstall. Deactivation normally
 * removes these already; uninstall repeats it for the site that deletes the
 * plugin files without deactivating first.
 *
 * @return string[]
 */
function mapsemble_uninstall_capabilities(): array {
	return array(
		'manage_mapsemble',
		'edit_mapsemble_map_data',
		'edit_mapsemble_maps',
		'edit_others_mapsemble_maps',
		'edit_private_mapsemble_maps',
		'edit_published_mapsemble_maps',
		'publish_mapsemble_maps',
		'read_private_mapsemble_maps',
		'delete_mapsemble_maps',
		'delete_others_mapsemble_maps',
		'delete_private_mapsemble_maps',
		'delete_published_mapsemble_maps',
	);
}

/**
 * Removes all Mapsemble data for the current site.
 */
function mapsemble_uninstall_site(): void {
	global $wpdb;

	$settings    = get_option( 'mapsemble_settings', array() );
	$delete_meta = is_array( $settings ) && ! empty( $settings['delete_data_on_uninstall'] );

	delete_option( 'mapsemble_settings' );
	// An in-flight connect attempt (mirrors Connect::STATE_OPTION).
	delete_option( 'mapsemble_connect_state' );
	// The capability snapshot deactivation leaves for the next activation to
	// restore; uninstall is the end of the line, so the grants are forgotten.
	delete_option( 'mapsemble_custom_role_caps' );
	delete_transient( 'mapsemble_token' );
	delete_transient( 'mapsemble_remote_maps' );
	delete_transient( 'mapsemble_feature_flags' );
	delete_transient( 'mapsemble_token_failed' );
	delete_transient( 'mapsemble_backoff' );

	// The feed cache's per-map generation counters, one option per map id
	// (mirrors Mapsemble\Feed\ResponseCache::GENERATION_OPTION_PREFIX).
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- one-off teardown of options named after map ids nothing else lists.
	$wpdb->query(
		$wpdb->prepare(
			"DELETE FROM {$wpdb->options} WHERE option_name LIKE %s",
			$wpdb->esc_like( 'mapsemble_feed_generation_' ) . '%'
		)
	);
	// Transients keyed per query and per user: cached geocoder answers
	// (mirrors Mapsemble\Rest\GeocodeController::CACHE_PREFIX) and the
	// location box's one-shot errors (MetaBox::ERROR_TRANSIENT). Each has a
	// value row and a timeout row.
	foreach ( array( 'mapsemble_geocode_', 'mapsemble_location_error_' ) as $prefix ) {
		foreach ( array( '_transient_', '_transient_timeout_' ) as $row ) {
			// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- one-off teardown of transients named after queries and users nothing else lists.
			$wpdb->query(
				$wpdb->prepare(
					"DELETE FROM {$wpdb->options} WHERE option_name LIKE %s",
					$wpdb->esc_like( $row . $prefix ) . '%'
				)
			);
		}
	}
	wp_cache_delete( 'alloptions', 'options' );

	// The map configurations themselves. The post type is not registered
	// during uninstall, so the posts are found by name — get_posts() would
	// filter them out against the registered post type list.
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- one-off teardown of an unregistered post type.
	$map_ids = $wpdb->get_col(
		$wpdb->prepare( "SELECT ID FROM {$wpdb->posts} WHERE post_type = %s", 'mapsemble_map' )
	);
	foreach ( $map_ids as $map_id ) {
		wp_delete_post( (int) $map_id, true );
	}

	foreach ( wp_roles()->role_objects as $role ) {
		foreach ( mapsemble_uninstall_capabilities() as $cap ) {
			$role->remove_cap( $cap );
		}
	}

	if ( $delete_meta ) {
		delete_post_meta_by_key( '_mapsemble_lat' );
		delete_post_meta_by_key( '_mapsemble_lng' );
		delete_post_meta_by_key( '_mapsemble_hidden' );
	}
}

if ( is_multisite() ) {
	// number => 0 lifts get_sites()' default cap of 100 sites.
	$mapsemble_site_ids = get_sites(
		array(
			'fields' => 'ids',
			'number' => 0,
		)
	);
	foreach ( $mapsemble_site_ids as $mapsemble_site_id ) {
		switch_to_blog( (int) $mapsemble_site_id );
		mapsemble_uninstall_site();
		restore_current_blog();
	}
} else {
	mapsemble_uninstall_site();
}