<?php
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namespace app\api\lists\article;

use app\api\lists\BaseApiDataLists;
use app\api\logic\ArticleLogic;
use app\common\enum\YesNoEnum;
use app\common\lists\ListsSearchInterface;
use app\common\model\article\Article;
use app\common\model\article\ArticleCollect;
use app\common\service\article\ArticleImageProxyService;
use app\common\model\user\UserChannelConfig;


/**
 * 文章列表
 * Class ArticleLists
 * @package app\api\lists\article
 */
class ArticleLists extends BaseApiDataLists implements ListsSearchInterface
{

    /**
     * @notes 搜索条件
     * @return \string[][]
     * @author 段誉
     * @date 2022/9/16 18:54
     */
    public function setSearch(): array
    {
        return [
            '=' => ['cid']
        ];
    }


    /**
     * @notes 自定查询条件
     * @return array
     * @author 段誉
     * @date 2022/10/25 16:53
     */
    public function queryWhere()
    {
        $where[] = ['is_show', '=', 1];
        if (!empty($this->params['keyword'])) {
            $where[] = ['title', 'like', '%' . $this->params['keyword'] . '%'];
        }
        if (isset($this->params['is_recommend']) && $this->params['is_recommend'] !== '') {
            $where[] = ['is_recommend', '=', $this->params['is_recommend']];
        }
        if (!empty($this->params['is_mychannel'])) {
            if ($this->userId) {
                $config = UserChannelConfig::where('user_id', $this->userId)->findOrEmpty();
                $channelIds = [];
                if (!$config->isEmpty()) {
                    $raw = $config['channel_ids'];
                    if (is_string($raw)) {
                        $channelIds = json_decode($raw, true) ?: [];
                    } elseif (is_array($raw)) {
                        $channelIds = $raw;
                    }
                }
                if (!empty($channelIds)) {
                    $where[] = ['cid', 'in', $channelIds];
                } else {
                    $where[] = ['id', '=', 0];
                }
            } else {
                $where[] = ['id', '=', 0];
            }
        }
        return $where;
    }


    /**
     * @notes 获取文章列表
     * @return array
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     * @author 段誉
     * @date 2022/9/16 18:55
     */
    public function lists(): array
    {
        $orderRaw = 'published_at desc, id desc';
        $sortType = $this->params['sort'] ?? 'default';
        $cid = (int) ($this->params['cid'] ?? 0);
        // 最新排序
        if ($sortType == 'new') {
            $orderRaw = 'published_at desc, id desc';
        }
        // 最热排序
        if ($sortType == 'hot') {
            $orderRaw = 'click_actual + click_virtual desc, id desc';
        }

        $field = 'id,cid,title,desc,content,author,image,is_video,duration,video_url,click_virtual,click_actual,create_time,ext';
        $result = Article::field($field)
            ->withCount(['comments' => 'comment_count'])
            ->where($this->queryWhere())
            ->where($this->searchWhere)
            ->orderRaw($orderRaw)
            ->append(['click'])
            ->hidden(['click_virtual', 'click_actual'])
            ->limit($this->limitOffset, $this->limitLength)
            ->select()->toArray();

        $articleIds = array_column($result, 'id');

        $collectIds = ArticleCollect::where(['user_id' => $this->userId, 'status' => YesNoEnum::YES])
            ->whereIn('article_id', $articleIds)
            ->column('article_id');

        foreach ($result as &$item) {
            $item['collect'] = in_array($item['id'], $collectIds);
            if (!empty($item['content'])) {
                $item['content'] = mb_substr(strip_tags($item['content']), 0, 100);
            }
            $item['translated_content'] = $cid === 22 ? ArticleLogic::getCachedTranslatedContent($item) : '';
            $item = ArticleImageProxyService::rewriteArticlePayload($item);
            unset($item['ext']);
        }

        return $result;
    }


    /**
     * @notes 获取文章数量
     * @return int
     * @author 段誉
     * @date 2022/9/16 18:55
     */
    public function count(): int
    {
        return Article::where($this->searchWhere)
            ->where($this->queryWhere())
            ->count();
    }
}