#!/usr/bin/env python

#
# Adapted from https://github.com/jlemon/zlogger/blob/master/get_riders.py
#
# The MIT License (MIT)
#
# Copyright (c) 2016 Jonathan Lemon
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

import argparse
import getpass
import json
import os
import requests
import sys


if getattr(sys, 'frozen', False):
    # If we're running as a py installer bundle
    SCRIPT_DIR = os.path.dirname(sys.executable)
else:
    SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))

try:
    input = raw_input
except NameError:
    pass

global args
global dbh


def post_credentials(session, username, password):
    # Credentials POSTing and tokens retrieval
    # POST https://secure.zwift.com/auth/realms/zwift/tokens/access/codes

    try:
        response = session.post(
            url="https://secure.zwift.com/auth/realms/zwift/tokens/access/codes",
            headers={
                "Accept": "*/*",
                "Accept-Encoding": "gzip, deflate",
                "Connection": "keep-alive",
                "Content-Type": "application/x-www-form-urlencoded",
                "Host": "secure.zwift.com",
                "User-Agent": "Zwift/1.5 (iPhone; iOS 9.0.2; Scale/2.00)",
                "Accept-Language": "en-US;q=1",
            },
            data={
                "client_id": "Zwift_Mobile_Link",
                "username": username,
                "password": password,
                "grant_type": "password",
            },
            allow_redirects=False,
            verify=args.verifyCert,
        )

        if args.verbose:
            print('Response HTTP Status Code: {status_code}'.format(
                status_code=response.status_code))
            print('Response HTTP Response Body: {content}'.format(
                content=response.content))

        json_dict = json.loads(response.content)

        return (json_dict["access_token"], json_dict["refresh_token"], json_dict["expires_in"])

    except requests.exceptions.RequestException as e:
        print('HTTP Request failed: %s' % e)

    except KeyError as e:
        print('Invalid uname and/or password')
        exit(-1)


def query(session, access_token, route):
    try:
        response = session.get(
            url="https://us-or-rly101.zwift.com/%s" % route,
            headers={
                "Accept-Encoding": "gzip, deflate",
                "Accept": "application/x-protobuf-lite",
                "Connection": "keep-alive",
                "Host": "us-or-rly101.zwift.com",
                "User-Agent": "Zwift/115 CFNetwork/758.0.2 Darwin/15.0.0",
                "Authorization": "Bearer %s" % access_token,
                "Accept-Language": "en-us",
            },
            verify=args.verifyCert,
        )

        if args.verbose:
            print('Response HTTP Status Code: {status_code}'.format(
                status_code=response.status_code))

        return response.content

    except requests.exceptions.RequestException as e:
        print('HTTP Request failed: %s' % e)


def logout(session, refresh_token):
    # Logout
    # POST https://secure.zwift.com/auth/realms/zwift/tokens/logout
    try:
        response = session.post(
            url="https://secure.zwift.com/auth/realms/zwift/tokens/logout",
            headers={
                "Accept": "*/*",
                "Accept-Encoding": "gzip, deflate",
                "Connection": "keep-alive",
                "Content-Type": "application/x-www-form-urlencoded",
                "Host": "secure.zwift.com",
                "User-Agent": "Zwift/1.5 (iPhone; iOS 9.0.2; Scale/2.00)",
                "Accept-Language": "en-US;q=1",
            },
            data={
                "client_id": "Zwift_Mobile_Link",
                "refresh_token": refresh_token,
            },
            verify=args.verifyCert,
        )
        if args.verbose:
            print('Response HTTP Status Code: {status_code}'.format(
                status_code=response.status_code))
            print('Response HTTP Response Body: {content}'.format(
                content=response.content))
    except requests.exceptions.RequestException as e:
        print('HTTP Request failed: %s' % e)


def login(session, user, password):
    access_token, refresh_token, expired_in = post_credentials(session, user, password)
    return access_token, refresh_token


def main(argv):
    global args
    global dbh

    access_token = None
    cookies = None

    parser = argparse.ArgumentParser(description='Zwift Profile Fetcher')
    parser.add_argument('-v', '--verbose', action='store_true',
                        help='Verbose output')
    parser.add_argument('--dont-check-certificates', action='store_false',
                        dest='verifyCert', default=True)
    parser.add_argument('-u', '--user', help='Zwift user name')
    args = parser.parse_args()

    #    if args.user:
    #        password = getpass.getpass("Password for %s? " % args.user)
    #    else:
    #        file = os.environ['HOME'] + '/.zwift_cred.json'
    #        with open(file) as f:
    #            try:
    #                cred = json.load(f)
    #            except ValueError, se:
    #                sys.exit('"%s": %s' % (args.output, se))
    #        f.close
    #        args.user = cred['user']
    #        password = cred['pass']

    if args.user:
        username = args.user
    else:
        username = input("Enter Zwift login (e-mail): ")
    if not sys.stdin.isatty():  # This terminal cannot support input without displaying text
        print(f'*WARNING* The current shell ({os.name}) cannot support hidden text entry.')
        print(f'Your password entry WILL BE VISIBLE.')
        print(f'If you are running a bash shell under windows, try executing this program via winpty:')
        print(f'>winpty python {argv[0]}')
        password = input("Enter password (will be shown):")
    else:
        password = getpass.getpass("Enter password: ")

    session = requests.session()

    access_token, refresh_token = login(session, username, password)
    profile = query(session, access_token, "api/profiles/me")
    with open('%s/profile.bin' % SCRIPT_DIR, 'wb') as f:
        f.write(profile)
    achievements = query(session, access_token, "achievement/loadPlayerAchievements")
    with open('%s/achievements.bin' % SCRIPT_DIR, 'wb') as f:
        f.write(achievements)

    logout(session, refresh_token)


if __name__ == '__main__':
    try:
        main(sys.argv)
    except KeyboardInterrupt:
        pass
    except SystemExit as se:
        print("ERROR:", se)