import httpx
from pywidevine.cdm import Cdm
from pywidevine.device import Device
from pywidevine.pssh import PSSH
from pywidevine.remotecdm import RemoteCdm
import yaml
import os
from colorama import Fore
from . import CDM_Selector

def load_license_curl():
    class LicenseCURL:
        def __init__(self):
            self.headers = headers
            self.cookies = cookies

    try:
        with open(f'{os.getcwd()}/License_cURL.py', 'r') as file:
            local_namespace = {}
            exec(file.read(), globals(), local_namespace)
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')

    if 'headers' in local_namespace:
        headers = local_namespace['headers']
    else:
        headers = None
    if 'cookies' in local_namespace:
        cookies = local_namespace['cookies']
    else:
        cookies = None
    return LicenseCURL()

def decrypt_local_cdm():
    cdm_choice = CDM_Selector.select_local_cdm()
    try:
        device = Device.load(f'{os.getcwd()}/WVDs/{cdm_choice}')
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        cdm = Cdm.from_device(device)
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        session_id = cdm.open()
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        pssh = PSSH(input("\nPSSH: "))
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    user_license_url = input("License URL: ")
    print()
    license_curl = load_license_curl()
    try:
        service_certificate = httpx.post(
            url=user_license_url,
            headers=license_curl.headers,
            cookies=license_curl.cookies,
            data=cdm.service_certificate_challenge
        ).content
        cdm.set_service_certificate(session_id=session_id, certificate=service_certificate)
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}\n\nTrying without service certificate')
    challenge = cdm.get_license_challenge(session_id=session_id, pssh=pssh)
    try:
        license_response = httpx.post(
            url=user_license_url,
            headers=license_curl.headers,
            cookies=license_curl.cookies,
            data=challenge
        ).content
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        cdm.parse_license(session_id=session_id, license_message=license_response)
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    for key in cdm.get_keys(session_id):
        if key.type == 'CONTENT':
            print(f"{key.kid.hex}:{key.key.hex()}")

    return

def decrypt_remote_cdm():
    remote_cdm_choice = CDM_Selector.select_remote_cdm()
    try:
        with open(f'{os.getcwd()}/Config.yaml', 'r') as ymlfile:
            config = yaml.safe_load(ymlfile)
        cdm = RemoteCdm(
            device_type=config['Remote_CDMs'][remote_cdm_choice]['device_type'],
            system_id=config['Remote_CDMs'][remote_cdm_choice]['system_id'],
            security_level=config['Remote_CDMs'][remote_cdm_choice]['security_level'],
            host=config['Remote_CDMs'][remote_cdm_choice]['host'],
            secret=config['Remote_CDMs'][remote_cdm_choice]['secret'],
            device_name=config['Remote_CDMs'][remote_cdm_choice]['name'],
        )
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        session_id = cdm.open()
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        pssh = PSSH(input("\nPSSH: "))
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    user_license_url = input("License URL: ")
    print()
    license_curl = load_license_curl()
    try:
        service_certificate = httpx.post(
            url=user_license_url,
            headers=license_curl.headers,
            cookies=license_curl.cookies,
            data=cdm.service_certificate_challenge
        ).content
        cdm.set_service_certificate(session_id=session_id, certificate=service_certificate)
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}\n\nTrying without service certificate')
    challenge = cdm.get_license_challenge(session_id=session_id, pssh=pssh)
    try:
        license_response = httpx.post(
            url=user_license_url,
            headers=license_curl.headers,
            cookies=license_curl.cookies,
            data=challenge
        ).content
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    try:
        cdm.parse_license(session_id=session_id, license_message=license_response)
    except Exception as error:
        print(f'{Fore.RED}An error occurred.\n\n{error}')
        exit(1)
    for key in cdm.get_keys(session_id):
        if key.type == 'CONTENT':
            print(f"{key.kid.hex}:{key.key.hex()}")

    return