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

# 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 = '/TennisChannel_refresh.txt'
SCRIPT_DIR = os.path.abspath(os.path.dirname(__file__))

USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36'

headers = {
    'origin': 'https://tennischannel.com',
    'referer': 'https://tennischannel.com/',
    'user-agent': USER_AGENT,
}

token = ''

def get_auth():
    try:
        with open(SCRIPT_DIR + authFile, 'r') as f:
            return f.read().strip()
    except:
        return None

def save_auth(refresh_token):
    with open(SCRIPT_DIR + authFile, 'w') as f:
        f.write(refresh_token)

def get_api_key():
    response = req.get('https://tennischannel.com/main.bundle.js', headers={'referer': 'https://tennischannel.com/', 'user-agent': USER_AGENT})
    data = response.content.decode()
    return data.split('apiKey:"')[-1].split('"')[0]

def do_refresh(api_key, refresh_token):
    refresh_headers = {
        'content-type': 'application/x-www-form-urlencoded',
        'origin': 'https://tennischannel.com',
        'referer': 'https://tennischannel.com/',
        'user-agent': USER_AGENT,
        'x-client-version': 'Chrome/JsCore/8.0.0/FirebaseCore-web',
    }
    data = {'grant_type': 'refresh_token', 'refresh_token': refresh_token}
    response = req.post(f'https://securetoken.googleapis.com/v1/token?key={api_key}', headers=refresh_headers, data=data)
    result = response.json()
    return result['id_token'], result['refresh_token']

def login():
    global token
    print("logging in...", file=sys.stderr)
    
    refresh_token = get_auth()
    if not refresh_token:
        print("No refresh token found. Please add TennisChannel refresh token to auth file.", file=sys.stderr)
        save_auth('')
        sys.exit(1)
    
    try:
        api_key = get_api_key()
        tok, new_refresh = do_refresh(api_key, refresh_token)
        save_auth(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_sinclair(channel_id):
    sinclair_headers = {
        **headers,
        'x-apiversion': '1.0',
        'x-appplatform': 'web',
        'x-brand': 'tennischannel',
        'x-station': '',
        'x-userauthenticationtoken': token,
    }
    response = req.get(f'https://entitlement-subscription.sinclairstoryline.com/entitlement/status/tennischanneleverywhere/{channel_id}', params={'station': ''}, headers=sinclair_headers)
    try:
        return response.json()['rss']['channel']['item']['media:content']['sinclair:drm']
    except:
        return None

def get_single(sinclair, guid):
    single_headers = {
        'accept': 'application/json',
        'content-type': 'application/json',
        'origin': 'https://tennischannel.com',
        'referer': 'https://tennischannel.com/',
        'user-agent': USER_AGENT,
        'x-apiversion': '1.0',
        'x-appplatform': 'web',
        'x-brand': 'tennischannel',
    }
    json_data = {'sinclair:drm': sinclair, 'mvpdMediaToken': '', 'guid': guid}
    response = req.post('https://drm-ms.sinclairstoryline.com/validate', params={'station': ''}, headers=single_headers, json=json_data)
    try:
        data = response.json()
        return data['dashUrl'], data['WVserver'], data['AuthXML']
    except:
        return None, None, None

def do_cdm_internal(challenge_b64, lic_url, lic_token):
    lic_headers = {
        'customdata': lic_token,
        'origin': 'https://tennischannel.com',
        'referer': 'https://tennischannel.com/',
        'user-agent': USER_AGENT,
        'content-type': 'application/x-www-form-urlencoded',
    }
    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, lic_token):
    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 = {
            'customdata': lic_token,
            'origin': 'https://tennischannel.com',
            'referer': 'https://tennischannel.com/',
            'user-agent': USER_AGENT,
            'content-type': 'application/x-www-form-urlencoded',
        }
        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://ott-gateway.sinclairstoryline.com/api/rest/v4/tennischanneleverywhere/OTT/-/component/home-feed', params={'station': ''}, headers=headers)
        try:
            data = response.json()
            for comp in data['rss']['channel']['pagecomponent'].get('component', []):
                item = comp.get('item', {})
                slug = item.get('slug', '')
                guid = item.get('guid', {}).get('content', '')
                title = item.get('media:content', {}).get('media:title', {}).get('content', 'Unknown')
                channel = {
                    'Name': title,
                    'Mode': 'live',
                    'SessionManifest': True,
                    'ManifestScript': f"id={slug}&guid={guid}",
                    'CdmType': 'widevine',
                    'UseCdm': True,
                    'Cdm': f"id={slug}&guid={guid}",
                    '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:
            params_dict = {}
            for param in id.split('&'):
                if '=' in param:
                    k, v = param.split('=', 1)
                    params_dict[k] = v
            
            channel_id = params_dict.get('id', '')
            guid = params_dict.get('guid', '')
            
            sinclair = get_sinclair(channel_id)
            if not sinclair:
                return "error"
            
            video_url, lic_url, lic_token = get_single(sinclair, guid)
            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,
                "LicenseToken": lic_token
            }
            print(json.dumps(output))
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "internal":
        try:
            params_dict = {}
            for param in id.split('&'):
                if '=' in param:
                    k, v = param.split('=', 1)
                    params_dict[k] = v
            
            channel_id = params_dict.get('id', '')
            guid = params_dict.get('guid', '')
            
            sinclair = get_sinclair(channel_id)
            if sinclair:
                _, lic_url, lic_token = get_single(sinclair, guid)
                if lic_url and lic_token:
                    result = do_cdm_internal(challenge, lic_url, lic_token)
                    if result:
                        print(result)
                    else:
                        return "error"
                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:
            params_dict = {}
            for param in id.split('&'):
                if '=' in param:
                    k, v = param.split('=', 1)
                    params_dict[k] = v
            
            channel_id = params_dict.get('id', '')
            guid = params_dict.get('guid', '')
            
            sinclair = get_sinclair(channel_id)
            if sinclair:
                video_url, lic_url, lic_token = get_single(sinclair, guid)
                if lic_url and lic_token:
                    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, lic_token)
                        if keys:
                            for key in keys:
                                print(key)
                        else:
                            return "error"
                    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()