<?php
namespace Isekai\Widgets;

use Html;
use Title;

class PreviewPageListWidget {
    public const CONTAINER_CLASS_NAME = 'isekai-card isekai-preview-page-list-card';

    public static function create($text, $params, \Parser $parser, \PPFrame $frame) {
        $parser->getOutput()->addModules(['ext.isekai.previewPageList']);
        
        $loader = $params['loader'] ?? 'unknown';
        if ($loader === 'unknown' && !empty(trim($text))) {
            $loader = 'pages';
        }

        $autoFocus = $params['autofocus'] ?? false;
        if ($autoFocus === 'false' || $autoFocus === '0') {
            $autoFocus = false;
        } else {
            $autoFocus = true;
        }

        $lazyLoad = $params['lazyload'] ?? false;
        if ($lazyLoad === 'false' || $lazyLoad === '0') {
            $lazyLoad = false;
        } else {
            $lazyLoad = true;
        }

        switch ($loader) {
            case 'pages':
                $pageList = explode("\n", trim($text));
                $pageList = array_map(function ($page) {
                    return trim($page);
                }, $pageList);

                return Html::openElement('div', [
                    'class' => self::CONTAINER_CLASS_NAME,
                    'data-loader' => $loader,
                    'data-autofocus' => $autoFocus,
                    'data-lazyload' => $lazyLoad,
                ]) . Html::element('script', [
                    'type' => 'application/json',
                    'data-pages' => true,
                ], json_encode($pageList)) . Html::closeElement('div');
            case 'category':
                $category = $params['category'] ?? null;
                if (!$category) {
                    return Html::element('span', [
                        'class' => 'error'
                    ], wfMessage('isekai-preview-page-list-error-invalid-category')->parse());
                }

                $categoryTitle = new Title($category, NS_CATEGORY);
                $categoryTitleText = $categoryTitle->getPrefixedText();

                return Html::element('div', [
                    'class' => self::CONTAINER_CLASS_NAME,
                    'data-category' => $categoryTitleText,
                    'data-autofocus' => $autoFocus,
                    'data-lazyload' => $lazyLoad,
                ]);
        }

        return Html::element('span', [
            'class' => 'error'
        ], wfMessage('isekai-preview-page-list-error-invalid-loader', $loader)->parse());
    }
}