import requests


def uid_def(screen_name):
    a = requests.get('https://api.vk.com/method/users.get', params={'user_ids': screen_name,
                                                                    'name_case': 'nom',
                                                                    'access_token': '17da724517da724517da72458517b8abce117da17da72454d235c274f1a2be5f45ee711',
                                                                    'v': '5.71'})

    return a


def calc_age(uid):
    if uid.isdigit():
        r = requests.get('https://api.vk.com/method/friends.get', params={'user_id': str(uid),
                                                                          'fields': 'bdate',
                                                                          'name_case': 'nom',
                                                                          'access_token': '27eba885cee40a80c9cfce66b39e2a0ce3d8ca3d8f2b5f370cf095c90d115f393dfe59a094466913338e4',
                                                                          'v': '5.71',
                                                                          'order': 'name'})
        return r.json()

    else:
        a = uid_def(uid)
        uid = a.json()['response'][0]['id']
        r = requests.get('https://api.vk.com/method/friends.get', params={'user_id': str(uid),
                                                                          'fields': 'bdate',
                                                                          'name_case': 'nom',
                                                                          'access_token': '27eba885cee40a80c9cfce66b39e2a0ce3d8ca3d8f2b5f370cf095c90d115f393dfe59a094466913338e4',
                                                                          'v': '5.71',
                                                                          'order': 'name'})
        return search(r.json())


def search(a):
    res = []
    for i in a['response']['items']:
        for j in i:
            if j == 'bdate':
                res.append(i[j])

    for j, i in enumerate(res):
        if i.count('.') == 2:
            res[j] = i.split('.')[2]

    for j, i in enumerate(res):
        if i.isdigit():
            res[j] = str(2019 - int(i))
    result = {}
    for lol in res:
        if lol.isdigit():
            if result.get(int(lol)):
                lol = int(lol)
                result[lol] += 1
            else:
                lol = int(lol)
                result[lol] = 1

    b = sorted([(key, value) for key, value in result.items()], key = lambda x: x[0])
    return sorted(b,key = lambda x: x[1],reverse=True)


if __name__ == '__main__':
    res = calc_age('nile558')
    print(res)