import logging, os, re, asyncio, requests, aiohttp 
from pyrogram.errors import InputUserDeactivated, UserNotParticipant, FloodWait, UserIsBlocked, PeerIdInvalid                             
from pyrogram.types import Message, InlineKeyboardButton
from pyrogram import filters, enums
from info import AUTH_CHANNEL, LONG_IMDB_DESCRIPTION, MAX_LIST_ELM, SHORT_URL, SHORT_API
from imdb import Cinemagoer
from typing import Union, List
from datetime import datetime, timedelta
import logging
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)


BTN_URL_REGEX = re.compile(r"(\[([^\[]+?)\]\((buttonurl|buttonalert):(?:/{0,2})(.+?)(:same)?\))")
BANNED = {}
SMART_OPEN = '“'
SMART_CLOSE = '”'
START_CHAR = ('\'', '"', SMART_OPEN)

# temp db for banned 
class temp(object):
    BANNED_USERS = []
    BANNED_CHATS = []
    CURRENT = 0
    CANCEL = False
    MELCOW = {}
    U_NAME = None
    B_NAME = None
    SETTINGS = {}
    GP_BUTTONS = {}
    PM_BUTTONS = {}
    PM_SPELL = {}
    GP_SPELL = {}

async def is_subscribed(bot, query):
    """
    Check if a user is subscribed to a specific channel.
    """
    logger.info(f"Checking if user {query.from_user.id} is subscribed to channel {AUTH_CHANNEL}.")
    try:
        user = await bot.get_chat_member(AUTH_CHANNEL, query.from_user.id)
        logger.info(f"User {query.from_user.id} is subscribed to channel {AUTH_CHANNEL}.")
    except UserNotParticipant:
        logger.info(f"User {query.from_user.id} is not subscribed to channel {AUTH_CHANNEL}.")
        pass
    except Exception as e:
        logger.error(f"Error checking subscription for user {query.from_user.id}: {e}")
        print(e)
    else:
        if user.status != enums.ChatMemberStatus.BANNED:
            logger.info(f"User {query.from_user.id} is not banned in channel {AUTH_CHANNEL}.")
            return True
    logger.info(f"User {query.from_user.id} is not subscribed or is banned in channel {AUTH_CHANNEL}.")
    return False

async def get_poster(query, bulk=False, id=False, file=None):
    """
    Fetch movie details from IMDb.
    """
    logger.info(f"Fetching poster for query: {query}, bulk: {bulk}, id: {id}, file: {file}.")
    imdb = Cinemagoer() 
    if not id:   
        query = (query.strip()).lower()
        title = query
        year = re.findall(r'[1-2]\d{3}$', query, re.IGNORECASE)
        if year:
            year = list_to_str(year[:1])
            title = (query.replace(year, "")).strip()
        elif file is not None:
            year = re.findall(r'[1-2]\d{3}', file, re.IGNORECASE)
            if year:
                year = list_to_str(year[:1]) 
        else:
            year = None
        try:
            movieid = imdb.search_movie(title.lower(), results=10)
            logger.info(f"Found {len(movieid)} movie results for title: {title}.")
        except Exception as e:
            logger.error(f"Error searching movie: {e}")
            return None
        if not movieid:
            logger.info(f"No movie results found for title: {title}.")
            return None
        if year:
            filtered = list(filter(lambda k: str(k.get('year')) == str(year), movieid))
            if not filtered:
                filtered = movieid
        else:
            filtered = movieid
        movieid = list(filter(lambda k: k.get('kind') in ['movie', 'tv series'], filtered))
        if not movieid:
            movieid = filtered
        if bulk:
            logger.info(f"Returning bulk movie results: {filtered}.")
            return filtered
        movieid = movieid[0].movieID
        logger.info(f"Selected movie ID: {movieid}.")
    else:
        movieid = query
        logger.info(f"Using provided movie ID: {movieid}.")
    movie = imdb.get_movie(movieid)
    if movie.get("original air date"):
        date = movie["original air date"]
    elif movie.get("year"):
        date = movie.get("year")
    else:
        date = "N/A"
    plot = ""
    if not LONG_IMDB_DESCRIPTION:
        plot = movie.get('plot')
        if plot and len(plot) > 0:
            plot = plot[0]
    else:
        plot = movie.get('plot outline')
    if plot and len(plot) > 800:
        plot = plot[0:800] + "..."

    logger.info(f"Movie details fetched: {movie.get('title')}, Year: {date}, Plot: {plot}.")
    return {
        'title': movie.get('title'),
        'votes': movie.get('votes'),
        "aka": list_to_str(movie.get("akas")),
        "seasons": movie.get("number of seasons"),
        "box_office": movie.get('box office'),
        'localized_title': movie.get('localized title'),
        'kind': movie.get("kind"),
        "imdb_id": f"tt{movie.get('imdbID')}",
        "cast": list_to_str(movie.get("cast")),
        "runtime": list_to_str(movie.get("runtimes")),
        "countries": list_to_str(movie.get("countries")),
        "certificates": list_to_str(movie.get("certificates")),
        "languages": list_to_str(movie.get("languages")),
        "director": list_to_str(movie.get("director")),
        "writer": list_to_str(movie.get("writer")),
        "producer": list_to_str(movie.get("producer")),
        "composer": list_to_str(movie.get("composer")) ,
        "cinematographer": list_to_str(movie.get("cinematographer")),
        "music_team": list_to_str(movie.get("music department")),
        "distributors": list_to_str(movie.get("distributors")),
        'release_date': date,
        'year': movie.get('year'),
        'genres': list_to_str(movie.get("genres")),
        'poster': movie.get('full-size cover url'),
        'plot': plot,
        'rating': str(movie.get("rating")),
        'url': f'https://www.imdb.com/title/tt{movieid}'
    }
   
def list_to_str(k):
    """
    Convert a list to a comma-separated string.
    """
    logger.debug(f"Converting list to string: {k}")
    if not k: 
        logger.debug("List is empty, returning 'N/A'.")
        return "N/A"
    elif len(k) == 1: 
        logger.debug(f"List has one element, returning: {k[0]}")
        return str(k[0])
    elif MAX_LIST_ELM:
        k = k[:int(MAX_LIST_ELM)]
        result = ' '.join(f'{elem}, ' for elem in k)
        logger.debug(f"List truncated to {MAX_LIST_ELM} elements, returning: {result}")
        return result
    else:
        result = ' '.join(f'{elem}, ' for elem in k)
        logger.debug(f"Returning full list as string: {result}")
        return result

__repo__ = "https://github.com/MrMKN/PROFESSOR-BOT"
logger.info(f"Repository URL set to: {__repo__}")

__version__ = "PROFESSOR-BOT ᴠ4.5.0"
logger.info(f"Version set to: {__version__}")

__license__ = "GNU GENERAL PUBLIC LICENSE V2"
logger.info(f"License set to: {__license__}")

__copyright__ = "Copyright (C) 2023-present MrMKN <https://github.com/MrMKN>"
logger.info(f"Copyright set to: {__copyright__}")

async def search_gagala(text):
    """
    Search Google for a given text.
    """
    logger.info(f"Searching Google for text: {text}")
    usr_agent = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) '
        'Chrome/61.0.3163.100 Safari/537.36'
    }
    text = text.replace(" ", '+')
    url = f'https://www.google.com/search?q={text}'
    try:
        response = requests.get(url, headers=usr_agent)
        response.raise_for_status()
        logger.info(f"Google search successful for text: {text}")
    except Exception as e:
        logger.error(f"Error searching Google: {e}")
        return []
    soup = BeautifulSoup(response.text, 'html.parser')
    titles = soup.find_all('h3')
    result = [title.getText() for title in titles]
    logger.info(f"Found {len(result)} Google search results.")
    return result

async def get_settings(group_id):
    """
    Get settings for a specific group.
    """
    logger.info(f"Getting settings for group ID: {group_id}")
    settings = temp.SETTINGS.get(group_id)
    if not settings:
        settings = await db.get_settings(group_id)
        temp.SETTINGS[group_id] = settings
        logger.info(f"Settings retrieved from database for group ID: {group_id}")
    else:
        logger.info(f"Settings retrieved from cache for group ID: {group_id}")
    return settings
    
async def save_group_settings(group_id, key, value):
    """
    Save settings for a specific group.
    """
    logger.info(f"Saving setting '{key}' with value '{value}' for group ID: {group_id}")
    current = await get_settings(group_id)
    current[key] = value
    temp.SETTINGS[group_id] = current
    await db.update_settings(group_id, current)
    logger.info(f"Setting '{key}' saved for group ID: {group_id}")

def get_size(size):
    """
    Convert file size in bytes to a human-readable format.
    """
    logger.debug(f"Converting size {size} bytes to human-readable format.")
    units = ["Bytes", "KB", "MB", "GB", "TB", "PB", "EB"]
    size = float(size)
    i = 0
    while size >= 1024.0 and i < len(units):
        i += 1
        size /= 1024.0
    result = "%.2f %s" % (size, units[i])
    logger.debug(f"Converted size to: {result}")
    return result

def get_file_id(msg: Message):
    """
    Extract file ID from a message.
    """
    logger.debug(f"Extracting file ID from message: {msg.id}")
    if not msg.media: 
        logger.debug("Message does not contain media.")
        return None
    for message_type in ("photo", "animation", "audio", "document", "video", "video_note", "voice", "sticker"):
        obj = getattr(msg, message_type)
        if obj:
            setattr(obj, "message_type", message_type)
            logger.debug(f"File ID extracted: {obj.file_id}, Type: {message_type}")
            return obj
    logger.debug("No file ID found in message.")
    return None

def extract_user(message: Message) -> Union[int, str]:
    """
    Extract user ID and first name from a message.
    """
    logger.debug(f"Extracting user from message: {message.id}")
    user_id = None
    user_first_name = None
    if message.reply_to_message:
        user_id = message.reply_to_message.from_user.id
        user_first_name = message.reply_to_message.from_user.first_name
        logger.debug(f"User extracted from reply: ID: {user_id}, First Name: {user_first_name}")
    elif len(message.command) > 1:
        if (len(message.entities) > 1 and message.entities[1].type == enums.MessageEntityType.TEXT_MENTION):
            required_entity = message.entities[1]
            user_id = required_entity.user.id
            user_first_name = required_entity.user.first_name
            logger.debug(f"User extracted from text mention: ID: {user_id}, First Name: {user_first_name}")
        else:
            user_id = message.command[1]
            user_first_name = user_id
            try:
                user_id = int(user_id)
                logger.debug(f"User ID converted to integer: {user_id}")
            except ValueError: 
                logger.debug("User ID conversion failed, keeping as string.")
                pass
        logger.debug(f"User extracted from command: ID: {user_id}, First Name: {user_first_name}")
    else:
        user_id = message.from_user.id
        user_first_name = message.from_user.first_name
        logger.debug(f"User extracted from sender: ID: {user_id}, First Name: {user_first_name}")
    return (user_id, user_first_name)

def split_quotes(text: str) -> List:
    """
    Split a quoted text into key and rest.
    """
    logger.debug(f"Splitting quotes from text: {text}")
    if not any(text.startswith(char) for char in START_CHAR):
        key, rest = text.split(None, 1)
        logger.debug(f"Text does not start with quote, split into key: {key}, rest: {rest}")
        return [key, rest]
    counter = 1  # ignore first char -> is some kind of quote
    while counter < len(text):
        if text[counter] == "\\":
            counter += 1
        elif text[counter] == text[0] or (text[0] == SMART_OPEN and text[counter] == SMART_CLOSE):
            break
        counter += 1
    else:
        key, rest = text.split(None, 1)
        logger.debug(f"Text does not end with quote, split into key: {key}, rest: {rest}")
        return [key, rest]

    # 1 to avoid starting quote, and counter is exclusive so avoids ending
    key = remove_escapes(text[1:counter].strip())
    # index will be in range, or `else` would have been executed and returned
    rest = text[counter + 1:].strip()
    if not key:
        key = text[0] + text[0]
    logger.debug(f"Text split into key: {key}, rest: {rest}")
    return list(filter(None, [key, rest]))

def parser(text, keyword, cb_data):
    """
    Parse button URLs and alerts from text.
    """
    logger.debug(f"Parsing text for buttons and alerts: {text}")
    if "buttonalert" in text: 
        text = (text.replace("\n", "\\n").replace("\t", "\\t"))
    buttons = []
    note_data = ""
    prev = 0
    i = 0
    alerts = []
    for match in BTN_URL_REGEX.finditer(text):
        n_escapes = 0
        to_check = match.start(1) - 1
        while to_check > 0 and text[to_check] == "\\":
            n_escapes += 1
            to_check -= 1
        # if even, not escaped -> create button
        if n_escapes % 2 == 0:
            note_data += text[prev:match.start(1)]
            prev = match.end(1)
            if match.group(3) == "buttonalert":
                # create a triple with button label, url, and newline status
                if bool(match.group(5)) and buttons:
                    buttons[-1].append(InlineKeyboardButton(match.group(2), callback_data=f"{cb_data}:{i}:{keyword}"))
                else:
                    buttons.append([InlineKeyboardButton(match.group(2), callback_data=f"{cb_data}:{i}:{keyword}")])
                i += 1
                alerts.append(match.group(4))
                logger.debug(f"Button alert added: Label: {match.group(2)}, Callback Data: {cb_data}:{i}:{keyword}")
            elif bool(match.group(5)) and buttons:
                buttons[-1].append(InlineKeyboardButton(match.group(2), url=match.group(4).replace(" ", "")))
                logger.debug(f"URL button added: Label: {match.group(2)}, URL: {match.group(4)}")
            else:
                buttons.append([InlineKeyboardButton(match.group(2), url=match.group(4).replace(" ", ""))])
                logger.debug(f"URL button added: Label: {match.group(2)}, URL: {match.group(4)}")
        else:
            note_data += text[prev:to_check]
            prev = match.start(1) - 1
    else: 
        note_data += text[prev:]
    try: 
        logger.debug(f"Parsed note data: {note_data}, buttons: {buttons}, alerts: {alerts}")
        return note_data, buttons, alerts
    except Exception as e:
        logger.error(f"Error parsing text: {e}")
        return note_data, buttons, None

def remove_escapes(text: str) -> str:
    """
    Remove escape characters from text.
    """
    logger.debug(f"Removing escapes from text: {text}")
    res = ""
    is_escaped = False
    for counter in range(len(text)):
        if is_escaped:
            res += text[counter]
            is_escaped = False
        elif text[counter] == "\\":
            is_escaped = True
        else:
            res += text[counter]
    logger.debug(f"Escapes removed, resulting text: {res}")
    return res

def humanbytes(size):
    """
    Convert size in bytes to a human-readable format.
    """
    logger.debug(f"Converting size {size} bytes to human-readable format.")
    if not size:
        logger.debug("Size is zero, returning empty string.")
        return ""
    power = 2**10
    n = 0
    Dic_powerN = {0: ' ', 1: 'Ki', 2: 'Mi', 3: 'Gi', 4: 'Ti'}
    while size > power:
        size /= power
        n += 1
    result = str(round(size, 2)) + " " + Dic_powerN[n] + 'B'
    logger.debug(f"Converted size to: {result}")
    return result
    
def get_time(seconds):
    """
    Convert seconds to a human-readable time format.
    """
    logger.debug(f"Converting {seconds} seconds to human-readable time format.")
    periods = [('ᴅ', 86400), ('ʜ', 3600), ('ᴍ', 60), ('ꜱ', 1)]
    result = ''
    for period_name, period_seconds in periods:
        if seconds >= period_seconds:
            period_value, seconds = divmod(seconds, period_seconds)
            result += f'{int(period_value)}{period_name}'
    logger.debug(f"Converted time to: {result}")
    return result
    
async def get_shortlink(link):
    """
    Generate a short link using a URL shortener service.
    """
    logger.info(f"Generating short link for: {link}")
    url = f'{SHORT_URL}/api'
    params = {'api': SHORT_API, 'url': link}
    try:
        async with aiohttp.ClientSession() as session:
            async with session.get(url, params=params, raise_for_status=True, ssl=False) as response:
                data = await response.json()
                if data["status"] == "success":
                    logger.info(f"Short link generated: {data['shortenedUrl']}")
                    return data['shortenedUrl']
                else:
                    logger.error(f"Error generating short link: {data['message']}")
                    return link
    except Exception as e:
        logger.error(f"Exception occurred while generating short link: {e}")
        return link

# from Midukki-RoBoT
def extract_time(time_val):
    """
    Extract time from a time value string.
    """
    logger.debug(f"Extracting time from value: {time_val}")
    if any(time_val.endswith(unit) for unit in ("s", "m", "h", "d")):
        unit = time_val[-1]
        time_num = time_val[:-1]  # type: str
        if not time_num.isdigit():
            logger.debug("Time value is not a digit, returning None.")
            return None

        if unit == "s":
            bantime = datetime.now() + timedelta(seconds=int(time_num)) 
        elif unit == "m":
            bantime = datetime.now() + timedelta(minutes=int(time_num))
        elif unit == "h":
            bantime = datetime.now() + timedelta(hours=int(time_num))
        elif unit == "d":
            bantime = datetime.now() + timedelta(days=int(time_num))
        else:
            logger.debug("Unknown time unit, returning None.")
            return None
        logger.debug(f"Extracted time: {bantime}")
        return bantime
    else:
        logger.debug("Time value does not end with valid unit, returning None.")
        return None

async def admin_check(message: Message) -> bool:
    """
    Check if a user is an admin in the chat.
    """
    logger.debug(f"Checking if user {message.from_user.id} is an admin in chat {message.chat.id}.")
    if not message.from_user: 
        logger.debug("Message does not contain a user, returning False.")
        return False
    if message.chat.type not in [enums.ChatType.GROUP, enums.ChatType.SUPERGROUP]: 
        logger.debug("Chat type is not GROUP or SUPERGROUP, returning False.")
        return False
    if message.from_user.id in [777000, 1087968824]: 
        logger.debug("User is a Telegram service account, returning True.")
        return True
    client = message._client
    chat_id = message.chat.id
    user_id = message.from_user.id
    try:
        check_status = await client.get_chat_member(chat_id=chat_id, user_id=user_id)
        logger.debug(f"User {user_id} status in chat {chat_id}: {check_status.status}")
    except Exception as e:
        logger.error(f"Error checking user status: {e}")
        return False
    admin_strings = [enums.ChatMemberStatus.OWNER, enums.ChatMemberStatus.ADMINISTRATOR]
    if check_status.status not in admin_strings: 
        logger.debug(f"User {user_id} is not an admin, returning False.")
        return False
    else: 
        logger.debug(f"User {user_id} is an admin, returning True.")
        return True

async def admin_filter(filt, client, message):
    """
    Filter for admin checks.
    """
    logger.debug(f"Applying admin filter for message {message.id}.")
    return await admin_check(message)