<?php
/**
 * When the plugin is deleted, removes everything PubForms has stored, but only if the site owner turned on
 * "Remove all forms and submissions when the plugin is deleted". By default the data is kept.
 */
defined( 'WP_UNINSTALL_PLUGIN' ) || exit;
// Uninstall removes the plugin's own custom entries table, so direct queries are intended here.
// phpcs:disable WordPress.DB.DirectDatabaseQuery

global $wpdb;

// The scheduled purge can't run once the plugin is gone, so always stop it.
$pubforms_next = wp_next_scheduled( 'pubforms_purge_entries' );
if ( $pubforms_next ) {
	wp_unschedule_event( $pubforms_next, 'pubforms_purge_entries' );
}

// Only remove forms, submissions and settings when the site owner opted in (Settings > "Remove all forms
// and submissions when the plugin is deleted"). Otherwise leave everything in place for a reinstall.
if ( ! get_option( 'pubforms_delete_on_uninstall', false ) ) {
	return;
}

// Submissions stored in their own table.
$pubforms_table = $wpdb->prefix . 'pubforms_entries';
$wpdb->query( "DROP TABLE IF EXISTS `{$pubforms_table}`" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.SchemaChange, WordPress.DB.PreparedSQL.InterpolatedNotPrepared, PluginCheck.Security.DirectDB.UnescapedDBParameter -- uninstall only; the table name comes from $wpdb->prefix.

// Forms are a private post type; delete their posts (before_delete_post already removed their entries).
$pubforms_form_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM {$wpdb->posts} WHERE post_type = %s", 'pubforms_form' ) );
foreach ( $pubforms_form_ids as $pubforms_form_id ) {
	wp_delete_post( (int) $pubforms_form_id, true );
}

// Uploaded files and signatures (private folder under uploads), including the guard files.
$pubforms_uploads = wp_upload_dir();
$pubforms_remove  = function ( $path ) use ( &$pubforms_remove ) {
	if ( ! is_dir( $path ) ) {
		return;
	}
	foreach ( (array) scandir( $path ) as $name ) {
		if ( '.' === $name || '..' === $name ) {
			continue;
		}
		$child = $path . '/' . $name;
		if ( is_dir( $child ) && ! is_link( $child ) ) {
			$pubforms_remove( $child );
		} else {
			wp_delete_file( $child );
		}
	}
	rmdir( $path ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_rmdir -- removing PubForms' own upload folder.
};
$pubforms_remove( trailingslashit( $pubforms_uploads['basedir'] ) . 'pubforms' );

// Plugin options.
$pubforms_options = array( 'pubforms_db_version', 'pubforms_default_notify_email', 'pubforms_sender_name', 'pubforms_sender_email', 'pubforms_submissions_per_hour', 'pubforms_auto_delete_days', 'pubforms_delete_on_uninstall', 'pubforms_uploads_guarded', 'pubforms_turnstile_site_key', 'pubforms_turnstile_secret_key', 'pubforms_hcaptcha_site_key', 'pubforms_hcaptcha_secret_key', 'pubforms_spam_method', 'pubforms_spam_questions', 'pubforms_spam_blocklist', 'pubforms_spam_max_links', 'pubforms_spam_min_seconds' );
foreach ( $pubforms_options as $pubforms_option ) {
	delete_option( $pubforms_option );
}