<?php
/**
 * Every option the plugin owns lives in recurkit_option_names(). Uninstall deletes exactly this list, so a new option
 * is registered here first, then given a getter/setter below. Never call get/update_option with a literal elsewhere.
 *
 * @package recurkit
 */

defined( 'ABSPATH' ) || exit;

/**
 * Names of every option the plugin owns.
 *
 * @return string[]
 */
function recurkit_option_names(): array {
	return array( 'recurkit_version', 'recurkit_uninstall_mode' );
}

/**
 * Version stored by the last activation or upgrade.
 */
function recurkit_get_installed_version(): string {
	return (string) get_option( 'recurkit_version', '' );
}

/**
 * Stores the installed version.
 *
 * @param string $version Version string.
 */
function recurkit_set_installed_version( string $version ): void {
	update_option( 'recurkit_version', $version );
}

/** What uninstall does with generated events: 'keep' (default) or 'delete'. */
function recurkit_get_uninstall_mode(): string {
	return 'delete' === get_option( 'recurkit_uninstall_mode', 'keep' ) ? 'delete' : 'keep';
}

/**
 * Stores the uninstall choice. Callers pass 'keep' or 'delete'.
 *
 * @param string $mode Choice.
 */
function recurkit_set_uninstall_mode( string $mode ): void {
	update_option( 'recurkit_uninstall_mode', 'delete' === $mode ? 'delete' : 'keep' );
}

/** Removes every owned option on every site of a network (or the single site). Called by uninstall.php. */
function recurkit_delete_all_options(): void {
	$delete_here = static function (): void {
		foreach ( recurkit_option_names() as $name ) {
			delete_option( $name );
		}
	};

	if ( ! is_multisite() ) {
		$delete_here();
		return;
	}

	foreach ( get_sites(
		array(
			'fields' => 'ids',
			'number' => 0,
		)
	) as $blog_id ) {
		switch_to_blog( (int) $blog_id );
		$delete_here();
		restore_current_blog();
	}
	foreach ( recurkit_option_names() as $name ) {
		delete_site_option( $name );
	}
}