#!/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 = '/VectraTVSmart_token.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/119.0.0.0 Safari/537.36'

token = ''

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

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

def check_token(tok):
    headers = {'authority': 'api.tvsmart.pl', 'accept': 'application/json', 'access-control-allow-origin': '*', 'authorization': 'Bearer ' + tok, 'origin': 'https://tvsmart.vectra.pl', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT}
    params = {'offset': '0', 'limit': '10', 'platform': 'BROWSER', 'system': 'tvonline', 'language': 'pl'}
    response = req.get('https://api.tvsmart.pl/products/channel', params=params, headers=headers)
    response.raise_for_status()
    return response.json()

def login():
    global token
    print("logging in...", file=sys.stderr)
    
    tok = get_auth()
    if not tok:
        print("No token found. Please add VectraTVSmart bearer token to auth file.", file=sys.stderr)
        save_auth('')
        sys.exit(1)
    
    try:
        check_token(tok)
        token = tok
        print("logged in successfully", file=sys.stderr)
        return token
    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):
    headers = {'accept': '*/*', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT}
    response = req.get(url, headers=headers)
    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, None
    for cp in content_protections:
        if cp.get('schemeIdUri', '').lower() == 'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95':
            pro_elem = cp.find('mspr:pro')
            default_kid = cp.get('default_KID', '').replace('-', '').lower()
            if pro_elem:
                return pro_elem.text, default_kid
    return None, None

def get_video_session(channel_uuid):
    headers = {'authority': 'api.tvsmart.pl', 'accept': 'application/json', 'access-control-allow-origin': '*', 'api-device': 'Chrome; 119; Windows; 10; Windows; 10;', 'authorization': 'Bearer ' + token, 'cache-control': 'no-cache', 'origin': 'https://tvsmart.vectra.pl', 'pragma': 'no-cache', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT}
    params = {'type': 'channel', 'platform': 'BROWSER', 'system': 'tvonline', 'language': 'pl'}
    response = req.get(f'https://api.tvsmart.pl/player/product/{channel_uuid}/configuration', params=params, headers=headers)
    try:
        data = response.json()
        return data['videoSession']['videoSessionId'], str(data['videoId'])
    except:
        return None, None

def get_single(session_id, channel_uuid):
    headers = {'authority': 'api.tvsmart.pl', 'accept': '*/*', 'cache-control': 'no-cache', 'origin': 'https://tvsmart.vectra.pl', 'pragma': 'no-cache', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT}
    params = {'type': 'channel', 'videoSessionId': session_id}
    response = req.get(f'https://api.tvsmart.pl/player/product/{channel_uuid}/playlist', params=params, headers=headers)
    try:
        data = response.json()
        sources = data['sources']
        dash = sources['DASH'][0]['src']
        if dash.startswith('//'):
            dash = 'https:' + dash
        lic_url = data['drm']['WIDEVINE']
        return dash, lic_url
    except:
        return None, None

def delete_session(session_id):
    headers = {'authority': 'api.tvsmart.pl', 'accept': 'application/json', 'authorization': 'Bearer ' + token, 'origin': 'https://tvsmart.vectra.pl', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT}
    params = {'platform': 'BROWSER', 'system': 'tvonline', 'language': 'pl'}
    req.delete(f'https://api.tvsmart.pl/player/videosession/{session_id}', params=params, headers=headers)

def do_cdm_internal(challenge_b64, lic_url, video_session_id, video_id):
    headers = {'authority': 'api.tvsmart.pl', 'accept': '*/*', 'origin': 'https://tvsmart.vectra.pl', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT, 'content-type': 'application/x-www-form-urlencoded'}
    params = {'videoAssetId': video_id, 'videoSessionId': video_session_id}
    response = req.post(lic_url, params=params, headers=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, video_session_id, video_id, default_kid=None):
    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)
        headers = {'authority': 'api.tvsmart.pl', 'accept': '*/*', 'origin': 'https://tvsmart.vectra.pl', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT, 'content-type': 'application/x-www-form-urlencoded'}
        params = {'videoAssetId': video_id, 'videoSessionId': video_session_id}
        licence = req.post(lic_url, params=params, headers=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':
                if default_kid:
                    keys.append(f"{default_kid}:{key.key.hex()}")
                else:
                    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': []}
        headers = {'authority': 'api.tvsmart.pl', 'accept': 'application/json', 'access-control-allow-origin': '*', 'authorization': 'Bearer ' + token, 'origin': 'https://tvsmart.vectra.pl', 'referer': 'https://tvsmart.vectra.pl/', 'user-agent': USER_AGENT}
        params = {'offset': '0', 'limit': '300', 'platform': 'BROWSER', 'system': 'tvonline', 'language': 'pl'}
        response = req.get('https://api.tvsmart.pl/products/channel', params=params, headers=headers)
        try:
            data = response.json()
            for ch in data.get('data', []):
                channel = {
                    'Name': ch.get('title', 'Unknown'),
                    'Mode': 'live',
                    'SessionManifest': True,
                    'ManifestScript': f"uuid={ch.get('uuid', '')}",
                    'CdmType': 'widevine',
                    'UseCdm': True,
                    'Cdm': f"uuid={ch.get('uuid', '')}",
                    '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_uuid = id.replace('uuid=', '')
            video_session_id, video_id = get_video_session(channel_uuid)
            if not video_session_id:
                return "error"
            video_url, lic_url = get_single(video_session_id, channel_uuid)
            if not video_url:
                return "error"
            output = {
                "Cdn": [{"Name": "default", "ManifestUrl": video_url}],
                "ManifestUrl": video_url,
                "Headers": {"Manifest": {'User-Agent': USER_AGENT, 'Referer': 'https://tvsmart.vectra.pl/'}, "Media": {'User-Agent': USER_AGENT, 'Referer': 'https://tvsmart.vectra.pl/'}},
                "Heartbeat": {"Url": '', "Params": '', "PeriodMs": 5*60*1000},
                "LicenseUrl": lic_url,
                "VideoSessionId": video_session_id,
                "VideoId": video_id
            }
            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_uuid = id.replace('uuid=', '')
            video_session_id, video_id = get_video_session(channel_uuid)
            if video_session_id:
                video_url, lic_url = get_single(video_session_id, channel_uuid)
                if lic_url:
                    result = do_cdm_internal(challenge, lic_url, video_session_id, video_id)
                    delete_session(video_session_id)
                    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:
            channel_uuid = id.replace('uuid=', '')
            video_session_id, video_id = get_video_session(channel_uuid)
            if video_session_id:
                video_url, lic_url = get_single(video_session_id, channel_uuid)
                if lic_url:
                    pssh_to_use, default_kid = (pssh, None) if pssh else get_pssh_from_mpd(video_url)
                    if pssh_to_use:
                        keys = do_cdm_external(pssh_to_use, lic_url, video_session_id, video_id, default_kid)
                        delete_session(video_session_id)
                        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()
