<?php

namespace Kirby\Panel;

use Kirby\Cms\Find;
use Kirby\Exception\LogicException;
use Kirby\Http\Uri;
use Kirby\Toolkit\Str;
use Throwable;

/**
 * The Dropdown response class handles Fiber
 * requests to render the JSON object for
 * dropdown menus
 * @since 3.6.0
 *
 * @package   Kirby Panel
 * @author    Bastian Allgeier <bastian@getkirby.com>
 * @link      https://getkirby.com
 * @copyright Bastian Allgeier GmbH
 * @license   https://getkirby.com/license
 */
class Dropdown extends Json
{
    protected static $key = '$dropdown';

    /**
     * Returns the options for the changes dropdown
     *
     * @return array
     */
    public static function changes(): array
    {
        $kirby     = kirby();
        $multilang = $kirby->multilang();
        $ids       = Str::split(get('ids'));
        $options   = [];

        foreach ($ids as $id) {
            try {
                // parse the given ID to extract
                // the path and an optional query
                $uri    = new Uri($id);
                $path   = $uri->path()->toString();
                $query  = $uri->query();
                $option = Find::parent($path)->panel()->dropdownOption();

                // add the language to each option, if it is included in the query
                // of the given ID and the language actually exists
                if ($multilang && $query->language && $language = $kirby->language($query->language)) {
                    $option['text'] .= ' (' . $language->code() . ')';
                    $option['link']  .= '?language=' . $language->code();
                }

                $options[] = $option;
            } catch (Throwable $e) {
                continue;
            }
        }

        // the given set of ids does not match any
        // real models. This means that the stored ids
        // in local storage are not correct and the changes
        // store needs to be cleared
        if (empty($options) === true) {
            throw new LogicException('No changes for given models');
        }

        return $options;
    }

    /**
     * Renders dropdowns
     *
     * @param mixed $data
     * @param array $options
     * @return \Kirby\Http\Response
     */
    public static function response($data, array $options = [])
    {
        if (is_array($data) === true) {
            $data = [
                'options' => array_values($data)
            ];
        }

        return parent::response($data, $options);
    }
}