"""
谷歌翻译接口
"""
from urllib.parse import quote
import requests
import execjs
import logging

logger = logging.getLogger(__name__)
code = """
function TL(a) {
    var k = "";
    var b = 406644;
    var b1 = 3293161072;
    var jd = ".";
    var $b = "+-a^+6";
    var Zb = "+-3^+b+-f";
    for (var e = [], f = 0, g = 0; g < a.length; g++) {
        var m = a.charCodeAt(g);
        128 > m ? e[f++] = m : (2048 > m ? e[f++] = m >> 6 | 192 : (55296 == (m & 64512) && g + 1 < a.length && 56320 == (a.charCodeAt(g + 1) & 64512) ? (m = 65536 + ((m & 1023) << 10) + (a.charCodeAt(++g) & 1023),
        e[f++] = m >> 18 | 240,
        e[f++] = m >> 12 & 63 | 128) : e[f++] = m >> 12 | 224,
        e[f++] = m >> 6 & 63 | 128),
        e[f++] = m & 63 | 128)
    }
    a = b;
    for (f = 0; f < e.length; f++) a += e[f],
    a = RL(a, $b);
    a = RL(a, Zb);
    a ^= b1 || 0;
    0 > a && (a = (a & 2147483647) + 2147483648);
    a %= 1E6;
    return a.toString() + jd + (a ^ b)
};
function RL(a, b) {
    var t = "a";
    var Yb = "+";
    for (var c = 0; c < b.length - 2; c += 3) {
        var d = b.charAt(c + 2),
        d = d >= t ? d.charCodeAt(0) - 87 : Number(d),
        d = b.charAt(c + 1) == Yb ? a >>> d: a << d;
        a = b.charAt(c) == Yb ? a + d & 4294967295 : a ^ d
    }
    return a
}
"""


class Api(object):

    def __init__(self):
        self.ctx = execjs.compile(code)
        self.headers = {
            'authority': 'translate.google.cn',
            'method': 'GET',
            'path': '',
            'scheme': 'https',
            'accept': '*/*',
            'accept-encoding': 'gzip, deflate, br',
            'accept-language': 'zh-CN,zh;q=0.9,ja;q=0.8',
            # 'cookie': '_ga=GA1.3.110668007.1547438795; _gid=GA1.3.791931751.1548053917; 1P_JAR=2019-1-23-1; NID=156=biJbQQ3j2gPAJVBfdgBjWHjpC5m9vPqwJ6n6gxTvY8n1eyM8LY5tkYDRsYvacEnWNtMh3ux0-lUJr439QFquSoqEIByw7al6n_yrHqhFNnb5fKyIWMewmqoOJ2fyNaZWrCwl7MA8P_qqPDM5uRIm9SAc5ybSGZijsjalN8YDkxQ',
            'cookie': '_ga=GA1.3.110668007.1547438795; _gid=GA1.3.1522575542.1548327032; 1P_JAR=2019-1-24-10; NID=156=ELGmtJHel1YG9Q3RxRI4HTgAc3l1n7Y6PAxGwvecTJDJ2ScgW2p-CXdvh88XFb9dTbYEBkoayWb-2vjJbB-Rhf6auRj-M-2QRUKdZG04lt7ybh8GgffGtepoA4oPN9OO9TeAoWDY0HJHDWCUwCpYzlaQK-gKCh5aVC4HVMeoppI',
            'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64)  AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.108 Safari/537.36',
            'x-client-data': 'CKi1yQEIhrbJAQijtskBCMG2yQEIqZ3KAQioo8oBCL+nygEI7KfKAQjiqMoBGPmlygE='
        }

    def get_tk(self, text):
        return self.ctx.call("TL", text)

    @staticmethod
    def build_url(text, tk, tl='zh-CN'):
        """
        需要用转URLEncoder
        :param text:
        :param tk:
        :param tl:
        :return:
        """
        return f"https://translate.google.cn/translate_a/single?client=webapp&sl=auto&tl={tl}&hl=zh-CN&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss&dt=t&source=btn&ssel=0&tsel=0&kc=0&tk={tk}&q={quote(text, encoding='utf-8')}"

    def translate(self, text, output_type='zh-CN'):
        """
        language_type为要翻译的语言
        de：德语
        ja：日语
        sv：瑞典语
        nl：荷兰语
        ar：阿拉伯语
        ko：韩语
        pt：葡萄牙语
        zh-CN：中文简体
        zh-TW：中文繁体
        """
        # url = 'https://translate.google.cn/translate_a/single'
        # data = {
        # 	'client': 'webapp',
        # 	'sl': 'auto',
        # 	'tl': output_type,
        # 	'hl': 'zh-CN',
        # 	'dt': 'at',
        # 	'source': 'btn',
        # 	'ssel': '0',
        # 	'tsel': '0',
        # 	'kc': '0',
        # 	'tk': self.get_tk(text),
        # 	'q': quote(text, encoding='utf-8'),
        # }
        url = self.build_url(text, self.get_tk(text), output_type)
        try:
            logger.info(f"GoogleApi.translate:request: {url}")
            # response = requests.get(url=url, headers=self.headers, params=data)
            response = requests.get(url=url, headers=self.headers)
            logger.info(f"GoogleApi.translate:response: {response.status_code}")
        except Exception as e:
            import traceback
            logger.info(f"GoogleApi.translate:error: {e.__class__.__name__}")
            logger.info(f"GoogleApi.translate:details: {traceback.format_exc()}")
            return ''
        if response.status_code > 300:
            logger.info(f"GoogleApi.translate:status: {response.status_code}")
            logger.info(f"GoogleApi.translate:reason: {response.reason}")
            logger.info(f"GoogleApi.translate:result: {response.text}")
            return ''
        else:
            return response.json()[0][0][0]


if __name__ == '__main__':
    word = '** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.'
    api = Api()
    translate_result = api.translate(word)
    print(translate_result)