import integv
import os
import re

from datetime import datetime
from pyrogram import Client
from pyrogram.types import Message
from tiktok_downloader import snaptik

from telegram_downloader_bot.logger import log


async def get_user_folder(storage_path: os.path, message: Message) -> os.path:
    """ Determine folder name used to save the media to. Depending on
    which type of message (forwarded, direct) detect that person's
    or group's name."""

    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)
        )

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

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


async def handle_media_message_contents(storage_path: os.path,
                                        client: Client,
                                        message: Message):
    """Detect what kind of media is being sent over from the user.
    Based on that, determine the correct file extension and save
    that media."""

    user_folder = get_user_folder(storage_path, message)

    # 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!")


def download_tt_video(storage_path: str, url: str) -> bool:
    """Downloads tiktok video from a given URL.
    Makes sure the video integrity is correct."""

    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_path, "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


def make_fs(storaga_path: str) -> None:
    os.makedirs(os.path.join(storaga_path, "tiktok"), exist_ok=True)
    os.makedirs(os.path.join(storaga_path, "telegram"), exist_ok=True)


def extract_urls(text: str) -> list:
    return re.findall(r"\bhttps?://[^\s]+", text)


def filter_tt_urls(urls: list) -> list:
    return [x for x in urls if "tiktok" in x]