import os
import re
import time
from tempfile import TemporaryDirectory

import boto3
import filetype
import twitter
from django.db import models
# from qrtools import QR
from telegram import Update, InlineKeyboardMarkup, InlineKeyboardButton, MessageEntity
from telegram.error import BadRequest
from telegram.ext import CallbackContext, Dispatcher, MessageHandler, Filters
from djconfig import config

from bots.models import TelegramBotModuleConfig, BotUser


class RobotBotModuleConfig(TelegramBotModuleConfig):
    users = models.ManyToManyField(BotUser)

    MODULE_NAME = 'RoBOT'

    def build_dispatcher(self, dispatcher: Dispatcher):
        dispatcher.add_handler(MessageHandler(Filters.audio | Filters.photo | Filters.video | Filters.document,
                                              self.save_file))
        dispatcher.add_handler(MessageHandler(Filters.text & (Filters.entity(MessageEntity.URL) |
                                                              Filters.entity(MessageEntity.TEXT_LINK)),
                                              self.document_downloader))
        return dispatcher

    def save_file(self, update: Update, ctx: CallbackContext):
        config._reload_maybe()

        if self.users.count() and not self.users.filter(user_id=update.effective_user.id).count():
            update.effective_message.reply_text('GTFO')
            return

        markup = InlineKeyboardMarkup([])

        if update.message.photo:
            file_id = update.message.photo[-1].file_id
        elif update.message.audio:
            file_id = update.message.audio.file_id
        elif update.message.video:
            file_id = update.message.video.file_id
        elif update.message.document:
            file_id = update.message.document.file_id
        else:
            return

        file = ctx.bot.get_file(file_id)
        filename = str(int(time.time())) + '-' + os.path.basename(file.file_path)
        text = ''
        with TemporaryDirectory() as d:
            file_path = os.path.join(d, filename)
            file.download(file_path)
            tp = filetype.guess(file_path)
            s3 = boto3.client('s3', aws_access_key_id=config.aws_access_key_id, aws_secret_access_key=config.aws_secret_access_key)
            s3.upload_file(file_path, config.s3_bucket, filename, ExtraArgs={'ACL': 'public-read', 'ContentType': tp.mime})
            # if update.message.text == 'qr':
            #     qr = QR(filename=file_path)
            #     qr.decode()
            #     text = f'QR:\n{qr.data}'
        file_url = f'https://{config.s3_bucket}.s3.amazonaws.com/{filename}'
        text += f'\n\n{file_url}'
        if update.message.photo:
            markup.inline_keyboard = [[
                InlineKeyboardButton('Google IS', f'https://www.google.com/searchbyimage?image_url={file_url}'),
                InlineKeyboardButton('Yandex IS', f'https://yandex.ru/images/search?rpt=imageview&url={file_url}'),
                InlineKeyboardButton('SauceNao', f'https://saucenao.com/search.php?url={file_url}')
            ]]
        update.message.reply_text(text, disable_web_page_preview=True, reply_markup=markup)

    def document_downloader(self, update: Update, ctx: CallbackContext):
        config._reload_maybe()

        if self.users.count() and not self.users.filter(user_id=update.effective_user.id).count():
            update.effective_message.reply_text('GTFO')
            return

        links = update.effective_message.parse_entities([MessageEntity.URL, MessageEntity.TEXT_LINK]).values()
        for link in links:
            try:
                twitter_matches = re.match(r'https?://twitter.com/[A-Za-z0-9_]{1,15}/status/(\d+).*', link)
                if link.endswith('.gif'):
                    update.message.reply_document(link)
                elif twitter_matches:
                    api = twitter.Api(config.twitter_consumer_api_key, config.twitter_consumer_api_secret,
                                      config.twitter_access_token, config.twitter_access_token_secret)
                    tweet = api.GetStatus(twitter_matches.group(1))
                    try:
                        for media in tweet.media:
                            if media.type == 'video':
                                max_bitrate = -1
                                max_bitrate_link = None
                                for variant in media.video_info['variants']:
                                    if variant['content_type'] == 'video/mp4' and variant['bitrate'] > max_bitrate:
                                        max_bitrate = variant['bitrate']
                                        max_bitrate_link = variant['url']
                                if max_bitrate_link is not None:
                                    update.message.reply_video(max_bitrate_link)
                    except KeyError:
                        update.message.reply_text('Unable to retrieve video info from tweet')
                else:
                    update.message.reply_text('Can\'t detect link type')
            except BadRequest:
                update.message.reply_text('Unable to retrieve file')