const { parseDate } = require('@/utils/parse-date');
const got = require('@/utils/got');
const cheerio = require('cheerio');
const config = require('@/config').value;

const videoAPI = 'https://api.ruguoapp.com/1.0/mediaMeta/play?type=ORIGINAL_POST';

module.exports = {
    topicDataHanding: (data, ctx) =>
        data.posts.map((item) => {
            let audioName, videoName, linkName;

            // 获取纯文字内容 和 即刻原文链接
            let content, link;
            switch (item.type) {
                case 'ORIGINAL_POST':
                    content = item.content;
                    link = `https://m.okjike.com/originalPosts/${item.id}`;
                    break;

                /* case 'QUESTION':
                    content = item.title;
                    link = `https://m.okjike.com/questions/${item.id}`;
                    break;
                case 'OFFICIAL_MESSAGE':
                    content = item.content;
                    link = `https://web.okjike.com/message-detail/${item.id}/officialMessage`;
                    break;*/
                default:
                    content = '未知类型，请前往GitHub提交issue';
                    link = 'https://github.com/DIYgod/RSSHub/issues';
            }

            // rss内容
            let description = '';
            // 作者昵称
            let author = '';

            // 添加内容作者信息
            if (item.user) {
                author = item.user.screenName;
                if (ctx.params.showUid) {
                    description += `<span>用户昵称：${author} <br> Username：${item.user.username}</span><br>`;
                }
            }

            if (item.linkInfo) {
                const linkUrl = item.linkInfo.originalLinkUrl || item.linkInfo.linkUrl;

                // 对于即刻抓取的微信公众号文章 特殊处理
                // 此时 Rss原文链接 变为 微信公众号链接
                if (new URL(linkUrl).host === 'mp.weixin.qq.com') {
                    link = linkUrl;
                }

                // 1. 音频
                const audioObject = item.linkInfo.audio || item.audio;
                if (audioObject) {
                    const audioImage = audioObject.image.picUrl || audioObject.image.thumbnailUrl;
                    const audioLink = linkUrl;
                    const audioTitle = audioObject.title;
                    const audioAuthor = audioObject.author;
                    audioName = `${audioTitle} - ${audioAuthor}`;
                    description += `
                    <img src="${audioImage}">
                    <a href="${audioLink}">${audioName}</a>
                `;
                }

                // 2. 视频
                const videoObject = item.linkInfo.video || item.video;
                if (videoObject) {
                    const videoImage = videoObject.image.picUrl || videoObject.image.thumbnailUrl;
                    const videoLink = linkUrl;
                    const videoDuration = Math.floor(videoObject.duration / 60000);
                    videoName = item.linkInfo.title;
                    description += `
                    <img src="${videoImage}">
                    <a href="${videoLink}">${videoName || '观看视频'} - 约${videoDuration}分钟</a>
                `;
                }

                // 3. 链接
                if (!audioObject && !videoObject && linkUrl) {
                    // 部分链接有标题
                    linkName = item.linkInfo.title;
                    const linkTitle = linkName || '访问原文';
                    // 部分链接有缩略图
                    const linkImage = item.linkInfo.pictureUrl;
                    const imageTag = `<img src="${linkImage}">`;
                    description += `
                    ${linkImage ? imageTag : ''}
                    <a href="${linkUrl}">${linkTitle}</a>
                `;
                }
            }

            // 4. 文字内容
            description += description ? `<br>${content}` : content;

            // 5. 图片
            if (item.pictures) {
                item.pictures.forEach((pic) => {
                    if (pic.format === 'gif') {
                        description += `<img src="${pic.picUrl.split('?imageMogr2/')[0]}">`;
                    } else {
                        // jpeg, bmp, png, gif, webp
                        // https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types
                        // let type = 'jpeg';
                        // switch (pic.format) {
                        //     case 'bmp':
                        //         type = 'bmp';
                        //         break;
                        //     case 'png':
                        //         type = 'png';
                        //         break;
                        //     default:
                        //         break;
                        // }
                        const imgUrl = pic.picUrl.match(/\.[a-z0-9]+?\?imageMogr2/) ? pic.picUrl.split('?imageMogr2/')[0] : pic.picUrl.replace(/thumbnail\/.+/, '');
                        description += `<br><img src="${imgUrl}">`;
                        // description += `<br><picture><source srcset="${
                        //     pic.picUrl.split('/thumbnail/')[0]
                        // }/strip/format/webp" type="image/webp"><source srcset="${imgUrl}" type="image/${type}"><img src="${imgUrl}"></picture>`;
                    }
                });
            }

            // 6. 视频
            if (item.video) {
                description += `<br><video src="${item.video.url}" controls></video>`;
            }

            // rss标题
            // 优先将音频和视频名作为标题
            // 其次将正文内容作为标题
            // 若都没有 则是推送型消息，将连接标题作为主题
            // “无题” fallback
            const title = audioName || videoName || content || linkName || '无题';

            return {
                title,
                description: description.trim().replace(/\n/g, '<br>'),
                pubDate: parseDate(item.createdAt),
                author,
                link,
            };
        }),
    constructTopicEntry: async (ctx, url) => {
        const data = await ctx.cache.tryGet(
            url,
            async () => {
                const resp = await got(url);
                const html = resp.data;
                const $ = cheerio.load(html);
                const raw = $('[type = "application/json"]').html();
                const data = JSON.parse(raw).props.pageProps;
                data.posts = await Promise.all(
                    data.posts.map(async (item) => {
                        if (!item.video) {
                            return item;
                        }

                        const videoUrl = `${videoAPI}&id=${item.id}`;
                        const videoRes = await got(videoUrl);
                        item.video = videoRes.data;

                        return item;
                    })
                );

                return data;
            },
            false,
            config.cache.routeExpire
        );

        if (data.length === 0) {
            ctx.state.data = {
                title: '主题 ID 不存在，或该主题暂无内容',
            };
            return null;
        }

        const topic = data.topic;

        ctx.state.data = {
            title: `${topic.content} - 即刻圈子`,
            link: url,
            description: topic.briefIntro,
            image: topic.squarePicture.picUrl || topic.squarePicture.middlePicUrl || topic.squarePicture.thumbnailUrl,
            // item: topicDataHanding(data),
        };

        return data;
    },
};