<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\docs\controller;

use addon\docs\model\DocsProject;
use addon\docs\service\DocSearchService;

/**
 * 文档搜索
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class Search extends DocsFrontend
{
    /**
     * 搜索结果页
     */
    public function index()
    {
        $keyword   = trim((string) $this->request->get('kw', ''));
        $projectId = (int) $this->request->get('project_id', 0);

        $limit = (int) ($this->docsConfig['search_limit'] ?? 30);
        $limit = $limit > 0 && $limit <= 100 ? $limit : 30;

        $list = [];
        if ($keyword !== '') {
            // 限制关键词长度，避免超长串拖慢 LIKE 查询
            $keyword = mb_substr($keyword, 0, 50, 'UTF-8');
            $list    = DocSearchService::search($keyword, $projectId, $limit);
        }

        $this->assign([
            'keyword'   => $keyword,
            'projectId' => $projectId,
            'list'      => $list,
            'total'     => count($list),
            'projects'  => DocsProject::enabledList(),
            'pageTitle' => $keyword !== '' ? '搜索：' . $keyword : '文档搜索',
        ]);

        return $this->fetch('search/index');
    }
}