#!/usr/bin/python3
import sys
import os
import base64
import json
import datetime
import pytz
import jwt

# Add parent directory to path for o11 import
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import o11

from bs4 import BeautifulSoup
from pywidevine.cdm import Cdm
from pywidevine.device import Device
from pywidevine.pssh import PSSH

# Parse command line parameters
user = o11.parse_params(sys.argv, 'user')
password = o11.parse_params(sys.argv, 'password')
device = o11.parse_params(sys.argv, 'device')
pin = o11.parse_params(sys.argv, 'pin')

id = o11.parse_params(sys.argv, 'id')
action = o11.parse_params(sys.argv, 'action')

bind = o11.parse_params(sys.argv, 'bind')
proxy = o11.parse_params(sys.argv, 'proxy')
doh = o11.parse_params(sys.argv, 'doh')
worker = o11.parse_params(sys.argv, 'worker')

cdm = o11.parse_params(sys.argv, 'cdm')
drm = o11.parse_params(sys.argv, 'drm')
kid = o11.parse_params(sys.argv, 'kid')
pssh = o11.parse_params(sys.argv, 'pssh')
challenge = o11.parse_params(sys.argv, 'challenge')

heartbeaturl = o11.parse_params(sys.argv, 'heartbeaturl')
heartbeatparams = o11.parse_params(sys.argv, 'heartbeatparams')

# Session setup
o11Session = o11.session(bind=bind, proxy=proxy, worker=worker)
req = o11Session.get_session()
if doh != "":
    o11.dns(doh)

if challenge == "cert":
    challenge = "CAQ="

# Configuration
WVD_PATH = './WVD.wvd'
authFile = '/trueID_auth.json'
SCRIPT_DIR = os.path.abspath(os.path.dirname(__file__))

USER_AGENT = 'okhttp/4.12.0'

headers = {
    'Accept-Encoding': 'gzip',
    'User-Agent': USER_AGENT
}

token = ''

def get_auth():
    try:
        return json.load(open(SCRIPT_DIR + authFile))
    except:
        return None

def save_auth(auth_data):
    json.dump(auth_data, open(SCRIPT_DIR + authFile, 'w'), indent=2)

def do_refresh(tok, refresh_token):
    refresh_headers = {
        'x-sdk_version': '5.3.3',
        'Content-Type': 'application/x-www-form-urlencoded',
        'Connection': 'Keep-Alive',
        'Accept-Encoding': 'gzip',
        'User-Agent': USER_AGENT
    }
    decoded = jwt.decode(tok, options={"verify_signature": False})
    data = {
        'refresh_token': refresh_token,
        'client_id': '212',
        'device_id': decoded['device_id'],
        'device_model': 'SM-G955F',
        'latlong': '0,0',
        'ip_address': '0.0.0.0',
        'redirect_uri': 'https://home.trueid.net',
        'grant_type': 'refresh_token',
        'jwt_version': '2'
    }
    response = req.post('https://iam.trueid.net/auth/v4/oauth2/token', headers=refresh_headers, data=data)
    result = response.json()
    return result['access_token'], result['refresh_token']

def login():
    global token
    print("logging in...", file=sys.stderr)
    
    auth = get_auth()
    if not auth or 'token' not in auth:
        print("No auth found. Please add trueID auth to auth file.", file=sys.stderr)
        save_auth({'token': 'ENTER_TOKEN_HERE', 'refresh_token': 'ENTER_REFRESH_TOKEN_HERE'})
        sys.exit(1)
    
    try:
        tok, new_refresh = do_refresh(auth['token'], auth['refresh_token'])
        save_auth({'token': tok, 'refresh_token': new_refresh})
        token = tok
        print("logged in successfully", file=sys.stderr)
        return tok
    except Exception as e:
        print(f"Login failed: {e}", file=sys.stderr)
        sys.exit(1)

def get_token():
    global token
    if token:
        return token
    return login()

def get_pssh_from_mpd(url):
    response = req.get(url, headers={'User-Agent': USER_AGENT})
    content_protections = BeautifulSoup(response.content, features="xml").findAll('ContentProtection')
    for cp in content_protections:
        if cp.get('schemeIdUri', '').lower() == 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed':
            pssh_elem = cp.find('cenc:pssh')
            if pssh_elem:
                return pssh_elem.text
    return None

def get_single(channel_id):
    decoded = jwt.decode(token, options={"verify_signature": False})
    single_headers = {
        'Authorization': 'Bearer ' + token,
        'Content-Type': 'application/json',
        'Accept-Encoding': 'gzip',
        'User-Agent': USER_AGENT
    }
    params = {
        'country': 'th',
        'drm_level': 'L3',
        'access': 'login',
        'device_id': decoded['device_id'],
        'os': 'android',
        'os_version': '9',
        'platform': 'trueid_android',
        'uid': decoded['sub'],
        'streamlvl': 'auto',
        'appid': 'trueid.th',
        'stream_type': 'live',
        'lang': 'en',
        'visitor': 'mobile'
    }
    response = req.get(f'https://content-customer-api.trueid.net/content/v2/contents/{channel_id}/streamers', headers=single_headers, params=params)
    try:
        data = response.json()['data']
        return data['stream']['stream_url'], data['stream'].get('stream_license')
    except:
        return None, None

def do_cdm_internal(challenge_b64, lic_url):
    lic_headers = {
        'Content-Type': 'application/octet-stream',
        'Accept-Encoding': 'gzip',
        'User-Agent': 'Dalvik/2.1.0 (Linux; U; Android 11;)'
    }
    response = req.post(lic_url, headers=lic_headers, data=base64.b64decode(challenge_b64))
    response_b64 = str(base64.b64encode(response.content), 'ascii')
    if response_b64.startswith('CA'):
        return response_b64
    return None

def do_cdm_external(pssh_b64, lic_url):
    try:
        pssh_obj = PSSH(pssh_b64)
        device_obj = Device.load(WVD_PATH)
        cdm_obj = Cdm.from_device(device_obj)
        session_id = cdm_obj.open()
        challenge_data = cdm_obj.get_license_challenge(session_id, pssh_obj)
        lic_headers = {
            'Content-Type': 'application/octet-stream',
            'Accept-Encoding': 'gzip',
            'User-Agent': 'Dalvik/2.1.0 (Linux; U; Android 11;)'
        }
        licence = req.post(lic_url, headers=lic_headers, data=challenge_data)
        cdm_obj.parse_license(session_id, licence.content)
        keys = []
        for key in cdm_obj.get_keys(session_id):
            if key.type != 'SIGNING':
                keys.append(f"{key.kid.hex}:{key.key.hex()}")
        cdm_obj.close(session_id)
        return keys
    except Exception as e:
        print(f'CDM external failed: {e}', file=sys.stderr)
        return None

def do_action():
    get_token()
    
    if action == "login":
        login()
        sys.exit()
    
    if action == "channels":
        output = {'Channels': []}
        response = req.get('https://discover.dmpcdn.com/oneapp/v2/th/livetv/livetv-ca_en.json', headers=headers)
        try:
            data = response.json()
            for ch in data[0].get('items', []):
                channel = {
                    'Name': ch.get('data', {}).get('description', 'Unknown'),
                    'Mode': 'live',
                    'SessionManifest': True,
                    'ManifestScript': f"id={ch.get('data', {}).get('id', '')}",
                    'CdmType': 'widevine',
                    'UseCdm': True,
                    'Cdm': f"id={ch.get('data', {}).get('id', '')}",
                    'Video': 'best',
                    'OnDemand': True,
                    'SpeedUp': True,
                }
                output['Channels'].append(channel)
            print(json.dumps(output, indent=2))
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "events":
        output = {'Events': []}
        print(json.dumps(output, indent=2))
    
    elif action == "heartbeat":
        sys.exit()
    
    elif action == "manifest":
        try:
            channel_id = id
            video_url, lic_url = get_single(channel_id)
            if not video_url:
                return "error"
            output = {
                "Cdn": [{"Name": "default", "ManifestUrl": video_url}],
                "ManifestUrl": video_url,
                "Headers": {"Manifest": {'User-Agent': USER_AGENT}, "Media": {'User-Agent': USER_AGENT}},
                "Heartbeat": {"Url": '', "Params": '', "PeriodMs": 5*60*1000},
                "LicenseUrl": lic_url
            }
            print(json.dumps(output))
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "internal":
        try:
            channel_id = id
            _, lic_url = get_single(channel_id)
            if lic_url:
                result = do_cdm_internal(challenge, lic_url)
                if result:
                    print(result)
                else:
                    return "error"
            else:
                return "error"
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "external":
        try:
            channel_id = id
            video_url, lic_url = get_single(channel_id)
            if lic_url:
                pssh_to_use = pssh if pssh else get_pssh_from_mpd(video_url)
                if pssh_to_use:
                    keys = do_cdm_external(pssh_to_use, lic_url)
                    if keys:
                        for key in keys:
                            print(key)
                    else:
                        return "error"
                else:
                    return "error"
            else:
                return "error"
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    else:
        print("invalid action: " + action, file=sys.stderr)

if do_action() == "error":
    login()
    do_action()
