// 相关歌单

module.exports = (query, request) => {
  return request(
    'GET', `https://music.163.com/playlist?id=${query.id}`, {},
    {ua: 'pc', cookie: query.cookie, proxy: query.proxy}
  )
    .then(response => {
      try{
        const pattern = /<div class="cver u-cover u-cover-3">[\s\S]*?<img src="([^"]+)">[\s\S]*?<a class="sname f-fs1 s-fc0" href="([^"]+)"[^>]*>([^<]+?)<\/a>[\s\S]*?<a class="nm nm f-thide s-fc3" href="([^"]+)"[^>]*>([^<]+?)<\/a>/g; 
        let result, playlists = []
        while((result = pattern.exec(response.body)) != null){
          playlists.push({
            creator: {
              userId: result[4].slice('/user/home?id='.length),
              nickname: result[5]
            },
            coverImgUrl: result[1].slice(0, -('?param=50y50'.length)),
            name: result[3],
            id: result[2].slice('/playlist?id='.length)
          })
        }
        response.body = {code: 200, playlists: playlists}
        return response
      }
      catch(err){
        response.status = 500
        response.body = {code: 500, msg: err.stack}
        return Promise.reject(response)
      }
    })
}