import datetime
import integv
import os
import re
import sentry_sdk
import uvloop

from pyrogram import Client, filters
from pyrogram.types import Message
from tiktok_downloader import snaptik

from telegram_downloader_bot import logger

API_ID = os.getenv("API_ID")  # Your API ID from my.telegram.org
API_HASH = os.getenv("API_HASH")  # Your API Hash from my.telegram.org
BOT_TOKEN = os.getenv("BOT_TOKEN")  # Your bot token from BotFather
STORAGE = os.getenv("STORAGE")  # Storage directory for downloads
MY_MSG_ID = int(os.getenv("MY_MSG_ID"))  # Your message ID for authorization
LOG_LEVEL = os.getenv("LOG_LEVEL")  # Log level

log = logger.configure_logger(LOG_LEVEL)

uvloop.install()

sentry_sdk.init(
    dsn="https://12d7a075d483fc133cde0ed82e72ac45@o4508071875313664.ingest.de.sentry.io/4508075566694480",
    traces_sample_rate=1.0,
    profiles_sample_rate=1.0,
    enable_tracing=True
)

app = Client("downloader_bot", api_id=API_ID,
             api_hash=API_HASH, bot_token=BOT_TOKEN)


def download_tt_video(url: str) -> bool:
    videos = snaptik(url)
    now = datetime.datetime.now()
    max_tries = 5

    log.debug(f"Downloading video from {url}...")

    for video in videos:
        video_filename = now.strftime("video-tiktok-%Y-%m-%d_%H-%M-%S.mp4")
        video_filepath: os.path = os.path.join(
            STORAGE, "tiktok", video_filename)

        for i in range(max_tries):
            video_content = video.download().getbuffer()
            is_valid_mp4 = integv.verify(
                video_content.tobytes(), file_type="mp4")
            log.debug(
                f"Attempt {i+1}/{max_tries} to "
                "download video, video valid: {is_valid_mp4}"
            )
            if is_valid_mp4:
                break

        if not is_valid_mp4:
            log.error("Downloaded video is not a valid mp4 file")
            return False

        with open(video_filepath, "wb") as f:
            f.write(video_content)
            log.debug("Video saved successfully")

        return True


@app.on_message(filters.command("start"))
async def start_handler(client, message: Message):
    await message.reply_text(
        "This bot downloads TikTok videos " "to my personal server"
    )


@app.on_message(filters.command("help"))
async def help_handler(client, message: Message):
    await message.reply_text("I won't help you!")


@app.on_message(filters.text)
async def message_handler(client, message: Message):
    if message.chat.id != MY_MSG_ID:
        return await message.reply_text("Nope, not talking to you!")

    urls = re.findall(r"\bhttps?://[^\s]+", message.text)
    if not urls:
        return await message.reply_text(
            "No links found in the message. " "Nothing to download!"
        )

    success_count = 0
    for i, url in enumerate(urls):
        msg = f"Downloading video {i+1}/{len(urls)}..."
        log.info(msg)
        await message.reply_text(msg)
        outcome = download_tt_video(url)
        success_count += 1 if outcome else 0

    await message.reply_text(f"{success_count}/{len(urls)} "
                             "video(s) downloaded")


@app.on_message(filters.media)
async def media_handler(client, message: Message):
    if message.chat.id != MY_MSG_ID:
        return await message.reply_text("Nope, not talking to you!")

    # Determine folder name based on whether the message was forwarded
    # and who it was forwarded from
    if message.forward_from:
        user = message.forward_from
        # User's first and last name for folder name,
        # fallback to user ID if not available
        user_folder_name = (
            f"{user.first_name}_{user.last_name}".strip()
            if user.first_name and user.last_name
            else str(user.id)
        )
    elif message.forward_from_chat:
        user = message.forward_from_chat
        # Use chat title for groups and channels
        user_folder_name = "".join(
            c for c in user.title if c.isalnum() or c in (" ", "_")
        ).rstrip()
    else:
        user = message.from_user
        # User's first and last name for folder name,
        # fallback to user ID if not available
        user_folder_name = (
            f"{user.first_name}_{user.last_name}".strip()
            if user.first_name and user.last_name
            else str(user.id)
        )

    user_folder_name = "".join(
        c for c in user_folder_name if c.isalnum() or c in (" ", "_")
    ).rstrip()  # Sanitize the folder name

    user_folder = os.path.join(STORAGE, "telegram", user_folder_name)
    os.makedirs(user_folder, exist_ok=True)

    # Reply to user that the download is starting
    await message.reply_text("Downloading media...")

    # Handle documents
    if message.document:
        file_name = message.document.file_name
        file_path = os.path.join(user_folder, file_name)
        await client.download_media(message, file_path)
        await message.reply_text(f"Document saved to {user_folder}")

    # Handle single or multiple photos
    elif message.photo:
        file_name = f"photo_{message.photo.file_id}.jpg"
        file_path = os.path.join(user_folder, file_name)
        await client.download_media(message.photo, file_path)
        await message.reply_text(f"Photo saved to {user_folder}")

    # Handle videos
    elif message.video:
        file_name = f"video_{message.video.file_id}.mp4"
        file_path = os.path.join(user_folder, file_name)
        await client.download_media(message, file_path)
        await message.reply_text(f"Video saved to {user_folder}")

    # Handle GIFs
    elif message.animation:
        file_name = f"gif_{message.animation.file_id}.gif"
        file_path = os.path.join(user_folder, file_name)
        await client.download_media(message.animation, file_path)
        await message.reply_text(f"GIF saved to {user_folder}")

    # Handle unknown data types
    else:
        await message.reply_text("Unknown media type!")


if __name__ == "__main__":
    os.makedirs(os.path.join(STORAGE, "tiktok"), exist_ok=True)
    os.makedirs(os.path.join(STORAGE, "telegram"), exist_ok=True)
    app.run()