#!/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 = '/MojaWebTV_auth.json'
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/126.0.0.0 Safari/537.36'

username = ''

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 js_a(arr):
    alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
    g = ""
    m = 0
    while m < len(arr):
        a = arr[m] if m < len(arr) else 0; m += 1
        n = arr[m] if m < len(arr) else 0; m += 1
        o = arr[m] if m < len(arr) else 0; m += 1
        h = (a << 16) | (n << 8) | o
        s = (h >> 18) & 63
        r = (h >> 12) & 63
        l = (h >> 6) & 63
        c = h & 63
        g += alphabet[s] + alphabet[r] + alphabet[l] + alphabet[c]
    d = len(arr) % 3
    return (g[:d-3] if d else g) + "==="[d or 3:]

def encode(s):
    o = js_a([178,185,94,141,233,43,106,88,231,106,59,222,114,41,218,178,248,163,122,219,169,149,169,222,182,40,172,138,183,162,181,169,40,117,169,99,120,0,0])
    tmp = [ord(ch) ^ ord(o[i % len(o)]) for i, ch in enumerate(s)]
    return js_a(tmp)

def do_login(uname, pwd):
    headers = {'Accept': 'application/json, text/javascript, */*; q=0.01', 'Origin': 'https://mojawebtv.bhtelecom.ba', 'Referer': 'https://mojawebtv.bhtelecom.ba/', 'User-Agent': USER_AGENT}
    params = {'u': encode(uname), 'p': encode(pwd), 'n': f"browser{encode(uname).replace('=', '').replace('/', '')}{encode(USER_AGENT).replace('=', '').replace('/', '')}"}
    response = req.get('https://mob.webtvstream.bhtelecom.ba/uadcm/', params=params, headers=headers)
    response.raise_for_status()
    data = response.json()
    if data['auth'] != 300:
        raise Exception('Auth failed')

def login():
    global username
    print("logging in...", file=sys.stderr)
    
    auth = get_auth()
    if not auth or 'username' not in auth:
        print("No auth found. Please add MojaWebTV username and password to auth file.", file=sys.stderr)
        save_auth({'username': '', 'password': ''})
        sys.exit(1)
    
    try:
        do_login(auth['username'], auth['password'])
        username = auth['username']
        print("logged in successfully", file=sys.stderr)
        return username
    except Exception as e:
        print(f"Login failed: {e}", file=sys.stderr)
        sys.exit(1)

def get_username():
    global username
    if username:
        return username
    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 do_cdm_internal(challenge_b64, cid):
    headers = {'Origin': 'https://mojawebtv.bhtelecom.ba', 'Referer': 'https://mojawebtv.bhtelecom.ba/', 'user-agent': USER_AGENT, 'content-type': 'application/octet-stream'}
    params = {'system': 'wv', 'content_id': cid, 'u': encode(username), 'd': f"browser{encode(username).replace('=', '').replace('/', '')}{encode(USER_AGENT).replace('=', '').replace('/', '')}"}
    response = req.post('https://prod.drm.webtvstream.bhtelecom.ba/license.php', headers=headers, params=params, 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, cid):
    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 = {'Origin': 'https://mojawebtv.bhtelecom.ba', 'Referer': 'https://mojawebtv.bhtelecom.ba/', 'user-agent': USER_AGENT, 'content-type': 'application/octet-stream'}
        params = {'system': 'wv', 'content_id': cid, 'u': encode(username), 'd': f"browser{encode(username).replace('=', '').replace('/', '')}{encode(USER_AGENT).replace('=', '').replace('/', '')}"}
        licence = req.post('https://prod.drm.webtvstream.bhtelecom.ba/license.php', headers=headers, params=params, data=challenge_data)
        cdm_obj.parse_license(session_id, licence.content)
        keys = [f"{key.kid.hex}:{key.key.hex()}" for key in cdm_obj.get_keys(session_id) if key.type != 'SIGNING']
        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_username()
    
    if action == "login":
        login()
        sys.exit()
    
    if action == "channels":
        output = {'Channels': []}
        headers = {'Accept': 'application/json, text/javascript, */*; q=0.01', 'Origin': 'https://mojawebtv.bhtelecom.ba', 'Referer': 'https://mojawebtv.bhtelecom.ba/', 'User-Agent': USER_AGENT}
        response = req.get('https://webtvstream.bhtelecom.ba/client/channels_400', headers=headers)
        try:
            data = response.json()
            for ch in data.get('feed', []):
                channel = {
                    'Name': ch.get('title', 'Unknown'),
                    'Mode': 'live',
                    'SessionManifest': True,
                    'ManifestScript': f"ch={ch.get('ch', '')}&server={ch.get('server', '')}&cid={ch.get('cid', '')}",
                    'CdmType': 'widevine',
                    'UseCdm': True,
                    'Cdm': f"cid={ch.get('cid', '')}",
                    '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
            slug = params_dict.get('ch', '')
            server = params_dict.get('server', '')
            video_url = f"https://webtvstream.bhtelecom.ba/{server}/{slug}.mpd?n=browser{encode(USER_AGENT).replace('=', '').replace('/', '')}"
            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}
            }
            print(json.dumps(output))
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "internal":
        try:
            cid = id.replace('cid=', '')
            result = do_cdm_internal(challenge, cid)
            if result:
                print(result)
            else:
                return "error"
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "external":
        try:
            cid = id.replace('cid=', '')
            params_dict = {}
            for param in id.split('&'):
                if '=' in param:
                    k, v = param.split('=', 1)
                    params_dict[k] = v
            slug = params_dict.get('ch', '')
            server = params_dict.get('server', '')
            cid = params_dict.get('cid', '')
            video_url = f"https://webtvstream.bhtelecom.ba/{server}/{slug}.mpd?n=browser{encode(USER_AGENT).replace('=', '').replace('/', '')}"
            pssh_to_use = pssh if pssh else get_pssh_from_mpd(video_url)
            if pssh_to_use:
                keys = do_cdm_external(pssh_to_use, cid)
                if keys:
                    for key in keys:
                        print(key)
                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()