import os
import logging
import vrchatapi
from vrchatapi.api import authentication_api, groups_api
from vrchatapi.exceptions import UnauthorizedException, ApiException
from vrchatapi.models.two_factor_auth_code import TwoFactorAuthCode
from vrchatapi.models.two_factor_email_code import TwoFactorEmailCode
from totp import get_totp

def get_group_instances():
    group_instances = []

    configuration = vrchatapi.Configuration( 
        # Get username/password from env variables
        username = os.getenv("USER_NAME"),
        password = os.getenv("USER_PASSWORD"),
    )

    group_id = os.getenv("GROUP_ID")

    with vrchatapi.ApiClient(configuration) as api_client:
        # Set our User-Agent as per VRChat Usage Policy and call the Auth API
        api_client.user_agent = "GroupInstanceLogger/0.1alpha me@williamtpeebles.com"
        auth_api = authentication_api.AuthenticationApi(api_client)

        try:
            # Calling getCurrentUser on Authentication API logs you in if the user isn't already logged in.
            current_user = auth_api.get_current_user()
        except UnauthorizedException as e:
                handle_auth_exception(auth_api, e)
                current_user = auth_api.get_current_user()

                # Call groups APIs
                groups_api_instance = vrchatapi.GroupsApi(api_client)

                try:
                    api_response = groups_api_instance.get_group_instances(group_id) # Get group
                    for instance in api_response:
                        group_instances.append(instance)
                    return group_instances
                except ApiException as e:
                    print("Exception when calling GroupsApi->get_group: %s\n" % e)
        logging.info(f"Logged in as: {current_user.display_name}")

        try:
             api_response = groups_api.GroupsApi(api_client),get_group_instances(group_id)
             group_instances.extend(api_response)
        except ApiException as e:
             logging.error(f"Exception when calling GroupsApi->get_group_instances: {e}")
        except Exception as e:
             logging.error(f"Unexpected Error: {e}")
    return group_instances

        

def handle_auth_exception(auth_api, e):
    if e.status == 200:
        if "Email 2 Factor Authentication" in e.reason:
                # Calling email verify2fa if the account has 2FA disabled, give warning that automatic runs cannot be done
                logging.warning("IMPORTANT: Your VRChat Account is only enabled for **email** based 2-factor authentication! "
                                "You will not be able to automate runs of GroupInstanceLogger\n"
                                "Set up your account to use TOTP-based 2FA so the application can log you in automatically\n\n")
                auth_api.verify2_fa_email_code(two_factor_email_code=TwoFactorEmailCode(input("Email 2FA Code: ")))
        elif "2 Factor Authentication" in e.reason:
                # Check if TOTP code is defined in env variables
                totp_key = os.getenv("TOTP_KEY")
                if totp_key:
                    logging.info("Attempting to authenticate with defined TOTP key")
                    auth_api.verify2_fa(two_factor_auth_code=TwoFactorAuthCode(get_totp()))
                else:
                    logging.info("No TOTP key defined, prompting manual input of 2FA code")
                    auth_api.verify2_fa(two_factor_auth_code=TwoFactorAuthCode(input("Enter 2FA Code: ")))
    else:
         logging.error(f"UnauthorizedException: {e}")