# -*- coding: UTF-8 -*-
import os
import json
import requests
from urllib.parse import urlparse, parse_qs


host = 'https://backend.igengmei.com/'
split_s = '###'
feed_cards_fn = lambda j: j.get('data', {}).get('features', [])
DYNAMIC_PARSE_APIS = {
    'api/index/v8?tabtype=choice': feed_cards_fn,
    'api/index/v8?tabtype=home_video': feed_cards_fn,
}
DYN_API_CONF_NAME = 'dynamic_apis.conf'


def do_request(url):
    if '?' in url:
        join_symbol = '&'
    else:
        join_symbol = '?'
    url = '{}{}version=7.37.0'.format(url, join_symbol)
    resp = requests.get(url)
    return resp.json()


def gen_uri_data_to_json(uri, jname='', only_get=False):
    print(uri, jname)
    if not uri and not jname:
        return
    query = ''
    json_path_and_name = uri
    if '?' in uri:
        json_path_and_name, query = uri.split('?')
    if jname and query:
        json_file_name = '{}.json'.format(jname)
        json_file_dir = json_path_and_name
    else:
        json_file_name = '{}.json'.format(os.path.basename(json_path_and_name))
        json_file_dir = os.path.dirname(json_path_and_name)
    json_file_path = '{}/{}'.format(json_file_dir, json_file_name)
    url = '{}{}'.format(host, uri)
    json_data = do_request(url)

    if not only_get:
        os.makedirs(json_file_dir, exist_ok=True)
        with open(json_file_path, 'w') as pf:
            pf.write(json.dumps(json_data, indent=4))
    return json_data


def gen_nginx_location_rule(uri, jname=''):
    pass


def get_val_from_query(qs, key, default=''):
    vals = qs.get(key)
    if not vals:
        return default
    return vals[0]


def parse_api_from_card(card_data):
    DEFAULT_RET = None
    if 'card_name' not in card_data:
        return DEFAULT_RET
    gmurl = card_data.get(card_data['card_name'], {}).get('gm_url', '')
    if not gmurl:
        return DEFAULT_RET
    _url_s = urlparse(gmurl)
    if _url_s.scheme != 'gengmei' or not _url_s.netloc:
        return DEFAULT_RET
    _qs = parse_qs(_url_s.query)
    if _url_s.netloc == 'tractate':
        # 帖子
        obj_id = get_val_from_query(_qs, 'tractate_id')
        if not obj_id:
            return DEFAULT_RET
        ret = [
            'api/tractate/new_detail?tractate_id={}###{}'.format(obj_id, obj_id),
            'api/tractate/related_service?tractate_id={}###{}'.format(obj_id, obj_id),
            'api/tractate/reply?id={}###{}'.format(obj_id, obj_id),
            'api/personal/recommends/v1?id={}&from_type=tractate###{}_{}'.format(obj_id, 'tractate', obj_id),
        ]
        return ret
    elif _url_s.netloc == 'diary':
        # 日记本
        obj_id = get_val_from_query(_qs, 'diary_id')
        if not obj_id:
            return DEFAULT_RET
        # import pdb; pdb.set_trace()
        diary_info = gen_uri_data_to_json('api/diary/get/v2?diary_id={}'.format(obj_id), str(obj_id), only_get=True)
        diary_service_id = diary_info.get('data', {}).get('diary_info', {}).get('service_id', '')
        ret = [
            'api/diary/get/v2?diary_id={}###{}'.format(obj_id, obj_id),
            'api/diary/services?diary_id={}&service_id={}###{}'.format(obj_id, diary_service_id, obj_id),
            'api/personal/recommends/v1?id={}&from_type=diary###{}_{}'.format(obj_id, 'diary', obj_id),
            'api/diary/topic/{}/_data'.format(obj_id),
        ]
        return ret
    elif _url_s.netloc == 'question_detail':
        # 问答
        obj_id = get_val_from_query(_qs, 'question_id')
        if not obj_id:
            return DEFAULT_RET
        ret = [
            'api/answer/detail?answer_id={}###{}'.format(obj_id, obj_id),
            'hybrid/question_v1/{}###{}'.format(obj_id, obj_id),
            'hybrid/question/new_answer_list/_data?question_id={}###{}'.format(obj_id, obj_id),
            'api/personal/recommends/v1?id={}&from_type=question###{}_{}'.format(obj_id, 'question', obj_id),
        ]
        return ret
    elif _url_s.netloc == 'service':
        # 美购
        obj_id = get_val_from_query(_qs, 'service_id')
        if not obj_id:
            return DEFAULT_RET
        ret = []
        return ret
    else:
        return DEFAULT_RET


def parse_cards(cards):
    print('parse_cards', len(cards))
    with open(DYN_API_CONF_NAME, 'a') as pf:
        for card_data in cards:
            api_confs = parse_api_from_card(card_data)
            if not api_confs:
                continue
            for api_conf in api_confs:
                pf.write('{}\n'.format(api_conf))


def _conf_line_parse(line):
    line = line.strip()
    if line.startswith('#'):
        return '', ''
    if split_s in line:
        uri, jname = line.split('###')
    else:
        uri, jname = line, ''
    return uri, jname


def base_api_json_generate():
    for line in open('apis.conf'):
        uri, jname = _conf_line_parse(line)
        json_data = gen_uri_data_to_json(uri, jname)

        # 根据feed生成动态json数据
        if uri in DYNAMIC_PARSE_APIS:
            parse_fn = DYNAMIC_PARSE_APIS[uri]
            cards = parse_fn(json_data)
            parse_cards(cards)


def dyn_api_json_generate():
    if not os.path.exists(DYN_API_CONF_NAME):
        print('{} not exists'.format(DYN_API_CONF_NAME))
        return
    for line in open(DYN_API_CONF_NAME):
        uri, jname = _conf_line_parse(line)
        gen_uri_data_to_json(uri, jname)


def clean_dyn_conf():
    if os.path.exists(DYN_API_CONF_NAME):
        os.remove(DYN_API_CONF_NAME)


def main():
    clean_dyn_conf()
    base_api_json_generate()
    dyn_api_json_generate()


if __name__ == '__main__':
    main()
