const fs = require('fs');
const path = require('path');
const dbUtils = require('../../../utils/dbUtils');

const requestUtils = require('../../../utils/requestUtils');
const sleepUtils = require('../../../utils/sleepUtils');

// 获取专辑详情
async function get({ albumId }) {
    let result = await dbUtils.query('SELECT count(*) as count FROM album WHERE album_id = ?', [albumId]);
    if (result[0].count > 0) {
        console.log(`数据库中已有数据，跳过 albumId: ${albumId}`);
        return;

        // let albumResult = await dbUtils.query('SELECT * FROM album WHERE album_id = ?', [albumId]);
        // albumResult = JSON.parse(JSON.stringify(albumResult));
        // let songAlbumResult = await dbUtils.query('SELECT * FROM song_album_relation WHERE album_id = ?', [albumId]);
        // songAlbumResult = JSON.parse(JSON.stringify(songAlbumResult));
        // albumResult.songIds = songAlbumResult.map(song => song.song_id);
        // // console.log(albumResult);
        // return albumResult;
    }

    let url = `https://music.163.com/album?id=${albumId}`;

    try {
        // var html = fs.readFileSync(path.join(__dirname, "../temp", `album-${albumId}.html`), 'utf8');
        var html = await requestUtils.getApiResult(url);
        // fs.writeFileSync(path.join(__dirname, "../temp", `album-${albumId}.html`), html);
    } catch (errors) {
        console.error(errors);
        return;
    }
    // console.log(html);

    if (html.includes(`<p class="note s-fc3">很抱歉，你要查找的网页找不到</p>`)) {
        // TODO 最后统一来处理这里 demo: artistId == 30084536
        return;
    }

    // 正则匹配
    let regExResult = /\<script type\=\"application\/ld\+json\"\>([\S\s]*?)\<\/script\>/.exec(html);
    let albumInfoJSONString = regExResult[1];
    let albumInfoDict = JSON.parse(albumInfoJSONString);
    // console.log(albumInfoDict);

    let company = null;
    try {
        company = /<p class="intr"><b>发行公司：<\/b>\n(.*?)\n<\/p>/.exec(html)[1];
    } catch (e) {
    }

    let image = /<meta property="og:image" content="http:\/\/p.\.music\.126\.net\/(.*?)" \/>/.exec(html)[1];
    let songListJSONString = /<textarea id="song-list-pre-data" style="display:none;">(.*?)<\/textarea>/.exec(html)[1];
    let songList = JSON.parse(songListJSONString);
    let songIds = songList.map(song => song.id);

    let albumInfo = {
        albumId: albumId,
        title: albumInfoDict.title,
        image: image,
        description: albumInfoDict.description,
        pubDate: albumInfoDict.pubDate,
        company: company,
        songIds: songIds,
    };
    // console.log("albumInfo", albumInfo);
    dbUtils.query('INSERT IGNORE INTO album SET ?', {
        album_id: albumInfo.albumId,
        title: albumInfo.title,
        description: albumInfo.description,
        image: albumInfo.image,
        pub_date: albumInfo.pubDate,
        company: albumInfo.company,
    });
    songIds.forEach(function (songId) {
        if (isNaN(Number(songId)) || Number(songId) === 0 || isNaN(Number(albumId)) || Number(songId) === 0)
            return;
        dbUtils.query('INSERT IGNORE INTO song_album_relation SET ?', {
            song_id: songId,
            album_id: albumId,
        });
    });
    return albumInfo;
}

module.exports = {
    get: get,
}