import requests
import json


class KuGou:
    def __init__(self, search_kw):
        '''
        self.search_url --> 搜索URL
        self.hash_url ---> 传入hash获得歌曲url与歌词
        :param search_kw: 需要搜索的歌曲或歌手
        '''
        self.search_url = 'http://songsearch.kugou.com/song_search_v2?callback=jQuery11240180593475130568_1542792461367&keyword={}&page=1&pagesize=30&userid=-1&clientver=&platform=WebFilter&tag=em&filter=2&iscorrection=1&privilege_filter=0&_=1542792461369'.format(
            search_kw)

        self.hash_url = 'https://wwwapi.kugou.com/yy/index.php?r=play/getdata&callback=jQuery19109053666197784564_1542792630445&hash={}&album_id={}&_=1542792630447'
        headers = {
            'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'
        }
        self.seesion = requests.Session()
        self.seesion.headers = headers

    def get_song_list(self):
        '''
        搜索到的歌曲列表
        默认第一首歌曲，其他的更改下标[0]
        :return:
        '''
        res = self.seesion.get(self.search_url)
        res = res.text.strip('jQuery11240180593475130568_1542792461367(')[:-2]
        # 只看第一首，修改下标[0],查看其它
        song_name = json.loads(res)['data']['lists'][0]['SongName'].strip('<em>').strip('</em>')
        song_hash = json.loads(res)['data']['lists'][0]['FileHash']
        album_id = json.loads(res)['data']['lists'][0]['AlbumID']
        # print(song_name,song_hash)
        self.get_music(song_hash, song_name，album_id)

    def get_music(self, song_hash, song_name，album_id):
        '''
        :param song_hash: 歌曲的hash
        :param song_name: 歌曲的名字
        :return:
        '''
        res = self.seesion.get(self.hash_url.format(song_hash，album_id))
        res = json.loads(res.text.strip('jQuery19109053666197784564_1542792630445(')[:-2])
        lrc = res['data']['lyrics'].replace('\r\n', '\n')
        music_url = res['data']['play_url']

        with open(song_name + '.lrc', 'w') as f:
            f.write(lrc)

        with open(song_name + '.mp3', 'wb') as f:
            f.write(self.seesion.get(music_url).content)

    def run(self):
        '''
        程序运行入口
        :return:
        '''
        self.get_song_list()


if __name__ == '__main__':
    k = KuGou('如约而至')
    k.run()