#!/usr/bin/env python3
import logging
import os
import pprint
import re
import shutil
import sqlite3
import subprocess
import sys
import tempfile
import unicodedata
from configparser import ConfigParser, NoSectionError
from datetime import datetime, timedelta
from glob import glob
from operator import itemgetter
from random import random
from sqlite3.dbapi2 import Connection
from time import sleep
from typing import Any, List, Optional, Tuple, cast

import acoustid
import filetype
import mutagen.id3
import pytumblr
import requests
import telegram
import youtube_dl
from _typeshed import StrPath
from mutagen import File, FileType
from mutagen.easyid3 import EasyID3
from telegram.ext import CommandHandler, MessageHandler, Updater
from telegram.ext.callbackcontext import CallbackContext
from telegram.ext.filters import Filters
from telegram.update import Update
from youtube_dl import DownloadError
from youtube_dl.version import __version__ as YTDL_VERSION

from markov import MarkovBlabberer
from util import datestr, mkdir_p


class DelojzaDB:
    def __init__(self, db_path):
        self.db_path = db_path
        self.db: Optional[Connection] = None

    def initialize(self):
        if self.db is None:
            self.db = sqlite3.connect(self.db_path)

    def get_protected_tags(self):
        if self.db is None:
            raise RuntimeError("Database not initialized!")
        results = self.db.execute("SELECT tag FROM tags WHERE protected == 1")
        return [res[0] for res in results.fetchall()]

    def get_protected_chats(self):
        if self.db is None:
            raise RuntimeError("Database not initialized!")
        results = self.db.execute("SELECT id FROM chats WHERE protected == 1")
        return [res[0] for res in results.fetchall()]

    def get_chat(self, id):
        if self.db is None:
            raise RuntimeError("Database not initialized!")
        return self.db.execute(
            "SELECT id, protected FROM chats WHERE id == ?", (id,)
        ).fetchone()

    def set_chat_protected(self, id: int, protected: bool):
        if self.db is None:
            raise RuntimeError("Database not initialized!")
        chat_in_db = self.get_chat(id)
        if chat_in_db:
            self.db.execute(
                "UPDATE chats SET protected = ? WHERE id = ?", (protected, id)
            )
        else:
            self.db.execute(
                "INSERT INTO chats (id, protected) VALUES (?, ?)", (id, protected)
            )
        self.db.commit()

    def get_tag(self, tag: str):
        if self.db is None:
            raise RuntimeError("Database not initialized!")
        return self.db.execute(
            "SELECT id, tag, protected FROM tags WHERE tag == ?", (tag,)
        ).fetchone()

    def set_tag_protected(self, tag: str, protected: bool):
        if self.db is None:
            raise RuntimeError("Database not initialized!")
        tag_in_db = self.get_tag(tag)
        if tag_in_db:
            self.db.execute(
                "UPDATE tags SET protected = ? WHERE tag = ?", (protected, tag)
            )
        else:
            self.db.execute(
                "INSERT INTO tags (tag, protected) VALUES (?, ?)", (tag, protected)
            )
        self.db.commit()


class DelojzaBot:
    def __init__(
        self,
        tg_api_key: str,
        out_dir: StrPath,
        redirects: Optional[List[Tuple[str, str]]] = None,
        tmp_dir: Optional[StrPath] = None,
        db_path: Optional[StrPath] = None,
        protected_password: Optional[str] = None,
        acoustid_key: Optional[str] = None,
        tumblr_name: Optional[str] = None,
        tumblr_keys: Optional[Tuple[str, str, str, str]] = None,
        markov: Optional[MarkovBlabberer] = None,
    ):
        self._setup_logging(os.path.dirname(os.path.realpath(__file__)))

        self.db = DelojzaDB(
            db_path
            or os.path.join(os.path.dirname(os.path.realpath(__file__)), "delojza.db")
        )

        self.out_dir = os.path.abspath(out_dir)
        self.out_dir = self.out_dir[:-1] if self.out_dir[-1] == "/" else self.out_dir
        self.logger.debug(f"OUT_DIR: {out_dir}")
        self.tmp_dir = tmp_dir if tmp_dir else tempfile.gettempdir()
        self.logger.debug(f"TMP_DIR: {tmp_dir}")
        self.markov = markov

        self.redirects = {}
        if redirects is not None:
            for hashtag, directory in redirects:
                hashtag = hashtag.upper()
                directory = str(directory)
                directory = directory[:-1] if directory[-1] == "/" else directory
                mkdir_p(directory)
                self.redirects[hashtag] = directory
                self.logger.debug(f"Will redirect hashtag {hashtag} to {directory}")

        self.updater = Updater(tg_api_key)
        dp = self.updater.dispatcher

        dp.add_handler(CommandHandler("start", self.tg_start))
        dp.add_error_handler(self.tg_error)
        dp.add_handler(CommandHandler("stats", self.tg_stats))
        dp.add_handler(CommandHandler("orphans", self.tg_orphan))
        dp.add_handler(CommandHandler("orphans_full", self.tg_orphan_full))
        dp.add_handler(CommandHandler("retag", self.tg_retag))
        dp.add_handler(CommandHandler("delete", self.tg_delete))
        dp.add_handler(CommandHandler("protect", self.tg_protect))
        dp.add_handler(CommandHandler("version", self.tg_version))
        dp.add_handler(CommandHandler("queue", self.tg_queue))
        dp.add_handler(MessageHandler(Filters.all, self.tg_handle))

        self.acoustid_key = acoustid_key

        if tumblr_name and tumblr_keys:
            self.tumblr_name = tumblr_name
            self.tumblr_client = pytumblr.TumblrRestClient(*tumblr_keys)
        else:
            self.tumblr_client = None

        self.protected_password = protected_password
        self.last_downloaded = {}
        self.last_hashtags = {}

    def _setup_logging(self, log_path: StrPath):
        self.logger = logging.getLogger("delojza")
        self.logger.setLevel(logging.DEBUG)

        ch = logging.StreamHandler()
        ch.setLevel(logging.INFO)

        dfh = logging.FileHandler(os.path.join(log_path, "delojza.log"))
        dfh.setLevel(logging.DEBUG)

        formatter = logging.Formatter(
            "%(asctime)s - %(name)s [%(levelname)s] %(message)s"
        )

        ch.setFormatter(formatter)
        dfh.setFormatter(formatter)

        self.logger.addHandler(ch)
        self.logger.addHandler(dfh)

    def _log_msg(self, update):
        from_user = update.message.from_user
        self.logger.debug(
            f"Received from {from_user.username or (from_user.first_name + from_user.last_name)}"
            f" ({update.message.chat.id}): " + (update.message.text or "<NONE>")
        )

    @staticmethod
    def ytdl_can(url: str):
        ies = youtube_dl.extractor.gen_extractors()
        for ie in ies:
            if ie.suitable(url) and ie.IE_NAME != "generic" and "/channel/" not in url:
                # Site has dedicated extractor
                return True
        return False

    # https://github.com/django/django/blob/master/django/utils/text.py#L393
    @staticmethod
    def sanitize(text: str):
        if text is None:
            return ""
        text = (
            unicodedata.normalize("NFKD", text)
            .encode("ascii", "ignore")
            .decode("ascii")
        )
        return re.sub(r"[^\w.()\[\]{}#-]", "_", text)

    @staticmethod
    def _get_tags(filepath: StrPath):
        try:
            audio = EasyID3(filepath)
            return (
                audio["artist"][0] if audio["artist"] else None,
                audio["title"][0] if audio["title"] else None,
            )
        except mutagen.id3.ID3NoHeaderError:
            return None, None

    @staticmethod
    def _tag_file(filepath: StrPath, artist: Optional[str], title: str):
        try:
            id3 = mutagen.id3.ID3(filepath)
        except mutagen.id3.ID3NoHeaderError:
            mutafile = cast(Optional[FileType], File(filepath))
            if not mutafile:
                return
            mutafile.add_tags()
            mutafile.save()
            id3 = mutagen.id3.ID3(filepath)
        id3.add(mutagen.id3.TIT2(encoding=3, text=title))
        if artist:
            id3.add(mutagen.id3.TOPE(encoding=3, text=artist))
            id3.add(mutagen.id3.TPE1(encoding=3, text=artist))
        id3.save()

    def _autotag_file(self, filepath, message, info=None):
        if info is None:
            info = {}

        title = None
        artist = None
        source = None

        best_acoustid_score = 0

        if self.acoustid_key:
            try:
                self.logger.debug("Requesting AcoustID for {}".format(filepath))
                results = sorted(
                    acoustid.match(self.acoustid_key, filepath),
                    key=itemgetter(0),
                    reverse=True,
                )
                if len(results) > 0:
                    score, rid, aid_title, aid_artist = results[0]
                    if score > 0.4:
                        title = aid_title
                        artist = re.sub(r" *; +", " & ", aid_artist or "")
                        best_acoustid_score = score
                        source = "AcoustID ({}%)".format(round(score * 100))
            except acoustid.NoBackendError:
                self.logger.warning("chromaprint library/tool not found")
            except acoustid.FingerprintGenerationError:
                self.logger.warning("fingerprint could not be calculated")
            except acoustid.WebServiceError as exc:
                self.logger.warning(
                    "web service request failed: {}".format(exc.message)
                )

        if best_acoustid_score < 0.8:
            if "track" in info:
                title = info["track"]
            if "artist" in info:
                artist = info["artist"]

            if "track" in info or "artist" in info:
                source = "supplied metadata"

            if title is None and artist is None and "-" in info.get("title", ""):
                split = info["title"].split("-")
                artist = split[0]
                title = split[1]
                source = "fallback (artist - title)"

            if title is None and "title" in info:
                title = info["title"]
                source = "full title fallback"

            if "soundcloud" in info.get("extractor", "") and artist is None:
                artist = info["uploader"]
                source = 'soundcloud "fallback"'

        artist = artist.strip() if artist else None
        title = title.strip() if title else None

        if title is None:
            message.reply_text("Tried tagging, found nothing :(")
            return

        message.reply_text(
            'Tagging as "{}" by "{}"\nvia {}'.format(title, artist, source)
        )
        self.logger.info(
            "Tagging {} w/ {} - {} [{}]...".format(filepath, title, artist, source)
        )
        self._tag_file(filepath, artist, title)

    @staticmethod
    def _get_percent_filled(directory: str):
        output = subprocess.check_output(["df", directory])
        percents_re = re.search(r"[0-9]+%", output.decode("utf-8"))
        if not percents_re:
            raise RuntimeError
        return int(percents_re.group(0)[:-1])

    # noinspection PyUnusedLocal
    def download_ytdl(
        self,
        urls: List[str],
        out_path: StrPath,
        date: datetime,
        message: telegram.Message,
        audio: bool = False,
        filetitle: Optional[str] = None,
    ):
        ytdl = {
            "noplaylist": True,
            "restrictfilenames": True,
            "outtmpl": os.path.join(
                self.tmp_dir, "{}__%(title)s__%(id)s.%(ext)s".format(datestr(date))
            ),
        }
        if audio:
            ytdl["format"] = "bestaudio/best"
            ytdl["postprocessors"] = [
                {
                    "key": "FFmpegExtractAudio",
                    "preferredcodec": "mp3",
                    "preferredquality": "256",
                }
            ]
            ytdl["postprocessor_args"] = ["-ar", "44100"]
        filenames = []
        with youtube_dl.YoutubeDL(ytdl) as ytdl:
            attempts = 0
            while True:
                try:
                    ytdl.download(urls)
                    break
                except DownloadError as exc:
                    attempts += 1
                    if "403" in str(exc) and attempts < 5:
                        self.logger.warning("Received a 403!")
                        sleep(1.357)
                        if self.markov:
                            message.reply_text(self.markov.make_sentence())
                    else:
                        raise exc
            for info in [ytdl.extract_info(url, download=False) for url in urls]:
                filename = cast(str, ytdl.prepare_filename(info))
                globbeds = glob(os.path.splitext(filename)[0] + ".*")
                for globbed in globbeds:
                    if globbed.endswith("mp3"):
                        self._autotag_file(globbed, message, info=info)
                    self.logger.info("Moving %s to %s..." % (globbed, out_path))
                    dest = shutil.move(globbed, out_path)
                    filenames.append(dest)
        return filenames

    def download_raw(
        self,
        urls: List[str],
        out_path: StrPath,
        date: datetime,
        message: telegram.Message,
        audio: bool = False,
        filetitle: Optional[str] = None,
    ):
        filenames = []
        for url in urls:
            local_filename = os.path.join(
                out_path,
                "{}__{}".format(
                    datestr(date), self.sanitize(filetitle or url.split("/")[-1])
                ),
            )
            final_filename = local_filename
            is_mp3 = local_filename.endswith("mp3")

            r = requests.get(url, stream=True)
            with open(local_filename, "wb") as f:
                for chunk in r.iter_content(chunk_size=1024):
                    if chunk:
                        f.write(chunk)

            if not re.match(r".*\..{3,5}$", os.path.split(local_filename)[-1]):
                kind = filetype.guess(local_filename)
                if kind is None:
                    self.logger.error(
                        "File has no extension and could not be determined!"
                    )
                else:
                    self.logger.info(
                        "Moving file without extension... %s?" % kind.extension
                    )
                    final_filename = shutil.move(
                        local_filename, local_filename + "." + kind.extension
                    )
                    is_mp3 = kind.extension == "mp3"

            filenames.append(final_filename)

            if audio and is_mp3:
                try:
                    id3 = mutagen.id3.ID3(final_filename)
                    untagged = "TIT2" not in id3
                except mutagen.id3.ID3NoHeaderError:
                    untagged = True
                if untagged:
                    self._autotag_file(final_filename, message)

        return filenames

    @staticmethod
    def extract_hashtags(message: telegram.Message):
        hashtags = list(
            map(
                message.parse_entity,
                list(filter(lambda e: e.type == "hashtag", message.entities)),
            )
        )
        hashtags += list(
            map(
                message.parse_caption_entity,
                list(filter(lambda e: e.type == "hashtag", message.caption_entities)),
            )
        )
        if len(hashtags) > 0:
            hashtags = [hashtag[1:].upper() for hashtag in hashtags]
            for i, hashtag in enumerate(hashtags):
                if "PRAS" in hashtag:
                    hashtags[i] = "PRAS"
        return hashtags

    def _get_hashtags(self, message: telegram.Message):
        hashtags = self.extract_hashtags(message)
        if len(hashtags) == 0 and self.last_hashtags.get(message.chat.id) is not None:
            user, ts, last_hashtags = self.last_hashtags[message.chat.id]
            if user == message.from_user and ts > datetime.now() - timedelta(hours=1):
                hashtags = last_hashtags
        return hashtags

    def handle_text(self, message: telegram.Message, hashtags: List[str]):
        if len(hashtags) == 0 or hashtags[0] not in ("TEXT", "TXT"):
            return

        info_line = self.sanitize(
            "-".join(re.sub(r"#[\w]+", "", message.text).strip().split()[:7])
        )
        if len(info_line) > 64:
            info_line = info_line[:64]

        filename = "{}__{}.txt".format(datestr(message.date), info_line)
        out_dir = self.redirects.get(hashtags[0], self.out_dir)
        out_path = os.path.join(out_dir, *hashtags[1:] or ["TEXT"])
        file_path = os.path.join(out_path, filename)

        mkdir_p(out_path)

        with open(file_path, "w") as out_file:
            out_file.write(message.text)

        message.reply_text(
            'Saved text to "{}"...'.format(
                os.path.join(*hashtags[1:] or ["TEXT"], filename)
            )
        )

    # noinspection PyBroadException
    def handle(
        self,
        urls: List[str],
        message: telegram.Message,
        hashtags: List[str],
        download_fn: Any,
        filetitle=None,
    ):
        self.db.initialize()

        try:
            if len(hashtags) == 0:
                self.logger.info("Ignoring %s due to no hashtag present..." % urls)
                return False

            original_hashtags = hashtags
            if hashtags[0] in self.redirects:
                out_dir = self.redirects[hashtags[0]]
                hashtags = hashtags[1:]
            else:
                out_dir = self.out_dir

            if any(
                hashtag in self.db.get_protected_tags() for hashtag in original_hashtags
            ):
                if message.chat.id not in self.db.get_protected_chats():
                    self.logger.info(
                        "Redirecting {} in chat {} due to protected hashtags: {}...".format(
                            urls, message.chat.title, hashtags
                        )
                    )
                    hashtags.insert(0, "PUBLIC")

            for i in range(len(hashtags)):
                current_path = hashtags[: i + 1]
                if not os.path.isdir(os.path.join(out_dir, *current_path)):
                    test_path = current_path
                    test_path[-1] = "_" + test_path[-1]
                    if os.path.isdir(os.path.join(out_dir, *test_path)):
                        self.logger.debug(
                            f"Rerouting {current_path[-1]} to _{test_path[-1]}"
                        )
                        hashtags[i] = test_path[-1]

            self.last_hashtags[message.chat.id] = None

            self.logger.info(
                "Downloading %s into '%s' (%s)"
                % (urls, "/".join(original_hashtags), out_dir)
            )

            out_path = os.path.join(out_dir, *hashtags)
            mkdir_p(out_path)

            reply = 'Downloading to "{}"...'.format("/".join(original_hashtags))

            audio = any(
                [
                    any([tag in hashtag for tag in ("AUDIO", "RADIO")])
                    for hashtag in original_hashtags
                ]
            )
            if audio and download_fn != self.download_raw:
                reply += " (And also guessing you want to extract the audio)"
            message.reply_text(reply)

            filenames = download_fn(
                urls, out_path, message.date, message, audio=audio, filetitle=filetitle
            )

            cmd_hashtag = original_hashtags[0]

            tumblr_ids = []
            if cmd_hashtag in ("TUMBLR", "TUMBLR_NOW") and self.tumblr_client:
                now = cmd_hashtag == "TUMBLR_NOW"
                reply = "(btw, {})".format(
                    "***FIRING TO TUMBLR RIGHT AWAY***" if now else "queueing to tumblr"
                )
                message.reply_text(reply, parse_mode=telegram.ParseMode.MARKDOWN)
                for filename in filenames:
                    if filename.endswith(".mp4"):
                        try:
                            output_filename = filename[: -len(".mp4")] + ".gif"
                            subprocess.check_output(
                                ["ffmpeg", "-i", filename, output_filename]
                            )
                            filename = output_filename
                        except subprocess.CalledProcessError:
                            message.reply_text(
                                "Conversion to gif failed, sorry! Check log..."
                            )
                            continue
                    response = self.tumblr_client.create_photo(
                        self.tumblr_name,
                        data=filename,
                        state="published" if now else "queue",
                    )
                    if "id" in response:
                        tumblr_ids.append(response["id"])
                    else:
                        self.logger.warning(
                            "Did not receive 'id' in tumblr response: \n"
                            + pprint.pformat(response)
                        )
                        message.reply_text(
                            "Something weird happened with the tumblrs, check it!"
                        )

            self.last_downloaded[message.chat.id] = (
                filenames,
                original_hashtags,
                tumblr_ids,
            )
            return True
        except:
            exc_type, exc_value, __ = sys.exc_info()
            if "Timed out" not in str(exc_value):
                message.reply_text(
                    "Something is FUCKED: [{}] {}".format(exc_type, exc_value)
                )
            return False

    def handle_tg_message(self, message, bot, hashtag):
        file, filetitle, tumblr = None, None, False
        if len(message.photo) > 0:
            photo = max(message.photo, key=lambda p: p.width)
            file = photo.file_id
        elif message.document is not None:
            filetitle = message.document.file_name
            file = message.document.file_id
        elif message.audio is not None:
            filetitle = message.audio.title
            file = message.audio.file_id
        elif message.video is not None:
            file = message.video.file_id
        elif message.video_note is not None:
            file = message.video_note.file_id
        elif message.voice is not None:
            file = message.voice.file_id

        if file is not None:
            url = bot.getFile(file).file_path
            return self.handle(
                [url], message, hashtag, self.download_raw, filetitle=filetitle
            )
        else:
            return False

    def handle_urls(self, message: telegram.Message, hashtags: List[str]):
        urls = list(
            map(
                lambda e: message.parse_entity(e),
                filter(lambda e: e.type == "url", message.entities),
            )
        )

        ytdl_res = False
        ytdl_urls = [url for url in urls if self.ytdl_can(url)]
        if len(ytdl_urls) > 0:
            ytdl_res = self.handle(ytdl_urls, message, hashtags, self.download_ytdl)

        raw_res = False
        normal_urls = [url for url in urls if not self.ytdl_can(url)]
        if len(normal_urls) > 0:
            file_urls = [
                url
                for url in normal_urls
                if "text" not in requests.head(url).headers.get("Content-Type", "text")
            ]
            if len(file_urls) > 0:
                raw_res = self.handle(file_urls, message, hashtags, self.download_raw)

        return ytdl_res or raw_res

    def tg_handle(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        hashtags = self._get_hashtags(update.message)
        if hashtags:
            url_res = self.handle_urls(
                update.message, self._get_hashtags(update.message)
            )
            if url_res:
                return

            msg_res = self.handle_tg_message(
                update.message, context.bot, self._get_hashtags(update.message)
            )
            if msg_res:
                return

        hashtags = self.extract_hashtags(update.message)
        if len(hashtags) > 0:
            self.handle_text(
                update.message.reply_to_message or update.message, hashtags
            )

            if update.message.reply_to_message:
                self.handle_tg_message(update.message.reply_to_message, context.bot, hashtags)
                self.handle_urls(update.message.reply_to_message, hashtags)
            else:
                self.last_hashtags[update.message.chat.id] = (
                    update.message.from_user,
                    datetime.now(),
                    hashtags,
                )
        else:
            if self.markov and update.message.text:
                self.markov.add_to_corpus(update.message.text)

    def _get_tag_dirs(self):
        return (
            list(
                filter(
                    lambda x: x.upper() == x,
                    filter(
                        lambda directory: os.path.isdir(
                            os.path.join(self.out_dir, directory)
                        ),
                        os.listdir(self.out_dir),
                    ),
                )
            )
            + list(self.redirects.keys())
        )

    def tg_stats(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        self.db.initialize()
        if update.message.chat.id not in self.db.get_protected_chats():
            update.message.reply_text(
                (self.markov.make_sentence() + "!")
                if self.markov and random() > 0.7
                else "nope."
            )
            return
        tag_dirs = self._get_tag_dirs()
        reply = "Total number of tags: {}\n\n".format(len(tag_dirs))
        counts = [
            (directory, os.listdir(os.path.join(self.out_dir, directory)))
            for directory in tag_dirs
        ]  # TODO REDIRECTS
        counts.sort(key=itemgetter(0))
        counts.sort(key=lambda x: len(x[1]), reverse=True)
        for directory, files in counts:
            if len(files) == 1:
                break
            abs_paths = [
                os.path.join(self.out_dir, directory, file) for file in files
            ]  # TODO REDIRECTS
            abs_files = list(filter(os.path.isfile, abs_paths))
            # mimes = [magic.from_file(path, mime=True).split("/")[0] for path in abs_files]
            # mime_counts = [(mime, mimes.count(mime)) for mime in set(mimes)]
            exts = [
                ext[1:]
                for ext in [os.path.splitext(path)[1] for path in abs_files]
                if len(ext) > 0
            ]
            ext_counts = [(ext, exts.count(ext)) for ext in set(exts)]
            dir_cnt = len(abs_paths) - len(abs_files)
            type_counts = ext_counts + (
                [("directorie", dir_cnt)] if dir_cnt > 0 else []
            )
            details = ", ".join(
                [
                    "{} {}s".format(cnt, mime)
                    for mime, cnt in sorted(
                        type_counts, key=itemgetter(1), reverse=True
                    )
                ]
            )
            if len(type_counts) == 1:
                reply += "<b>{}:</b> {}\n".format(directory, details)
            else:
                reply += "<b>{}:</b> {} files ({})\n".format(
                    directory, len(files), details
                )
        orphans = list(filter(lambda cnt: len(cnt[1]) <= 1, counts))
        if len(orphans) > 0:
            reply += "\nFollowing tags are orphans: " + ", ".join(
                map(itemgetter(0), orphans)
            )
        update.message.reply_text(reply, parse_mode=telegram.ParseMode.HTML)

    def _get_orphan_tags(self):
        result = []
        for directory in self._get_tag_dirs():
            files = os.listdir(os.path.join(self.out_dir, directory))
            if len(files) == 1:
                result.append((directory, files[0]))
            if len(files) == 0:
                result.append((directory, "NO FILE AT ALL..."))
        return sorted(result, key=itemgetter(0))

    def tg_orphan(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        self.db.initialize()
        if update.message.chat.id not in self.db.get_protected_chats():
            update.message.reply_text(
                (self.markov.make_sentence() + "!")
                if self.markov and random() > 0.7
                else "nope."
            )
            return
        orphans = self._get_orphan_tags()
        if len(orphans) == 0:
            update.message.reply_text("Good job, no orphan tags!")
        else:
            update.message.reply_text(
                "The following tags only contain a single file:\n"
                + ", ".join(map(itemgetter(0), orphans))
            )

    def tg_orphan_full(self, _, update):
        self._log_msg(update)
        self.db.initialize()
        if update.message.chat.id not in self.db.get_protected_chats():
            update.message.reply_text(
                (self.markov.make_sentence() + "!")
                if self.markov and random() > 0.7
                else "nope."
            )
            return
        orphans = self._get_orphan_tags()
        if len(orphans) == 0:
            update.message.reply_text("Good job, no orphan tags!")
        else:
            tmp_reply = "The following tags only contain a single file:\n"
            for directory, file in orphans:
                line = "{}: {}\n".format(directory, file)
                if len(tmp_reply + line) > 4096:
                    update.message.reply_text(tmp_reply)
                    tmp_reply = ""
                tmp_reply += line
            if len(tmp_reply) > 0:
                update.message.reply_text(tmp_reply)

    def tg_retag(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        if self.last_downloaded.get(update.message.chat.id) is not None:
            files, hashtags, tumblr_ids = self.last_downloaded[update.message.chat.id]
            out_dir = self.redirects.get(hashtags[0], self.out_dir)
            mp3s = [filename for filename in files if filename.endswith("mp3")]
            if len(mp3s) > 0:
                arg_raw = re.sub(r"^/[@\w]+ ?", "", update.message.text).strip()
                artist, title = None, None

                reverse = len(arg_raw) == 0
                if not reverse:
                    tagline = arg_raw.split(" - ")
                    if len(tagline) == 1:
                        title = tagline[0].strip()
                    else:
                        artist = tagline[0].strip()
                        title = tagline[1].strip()

                for mp3 in mp3s:
                    if reverse:
                        orig_artist, orig_title = self._get_tags(mp3)
                        title, artist = orig_artist, orig_title

                    self._tag_file(mp3, artist, cast(str, title))
                    update.message.reply_text(
                        'Tagging "{}" as "{}" by "{}"!'.format(
                            mp3[len(out_dir) + 1 :], title, artist
                        )
                    )
        else:
            update.message.reply_text(
                (self.markov.make_sentence() if self.markov and random() > 0.7 else "")
                + "???"
            )

    def tg_delete(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        if self.last_downloaded.get(update.message.chat.id) is not None:
            files, hashtags, tumblr_ids = self.last_downloaded[update.message.chat.id]
            out_dir = self.redirects.get(hashtags[0], self.out_dir)
            for file in files:
                update.message.reply_text(
                    'Removing "{}"!'.format(file[len(out_dir) + 1 :])
                )
                os.remove(file)
                parent_dir = os.path.dirname(file)
                while True:
                    if len(os.listdir(parent_dir)) == 0:
                        update.message.reply_text(
                            'Removing directory "{}" as it\'s empty...'.format(
                                parent_dir[len(out_dir) + 1 :]
                            )
                        )
                        os.rmdir(parent_dir)
                    if parent_dir == out_dir:
                        break
                    parent_dir = os.path.dirname(parent_dir)
            if len(tumblr_ids) > 0:
                plural = (
                    "s (all {} of them)".format(len(tumblr_ids))
                    if len(tumblr_ids) > 1
                    else ""
                )
                update.message.reply_text("Also deleting tumblr post{}!".format(plural))
                for tumblr_id in tumblr_ids:
                    if self.tumblr_client:
                        self.tumblr_client.delete_post(self.tumblr_name, tumblr_id)
            self.last_downloaded[update.message.chat.id] = None
            return
        update.message.reply_text("Nothing to remove!")

    def tg_protect(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        self.db.initialize()

        msg_split = update.message.text.split(" ")
        if len(msg_split) != 3:
            update.message.reply_text(
                (self.markov.make_sentence() if self.markov and random() > 0.7 else "")
                + "???"
            )
            return

        chat_in_db = self.db.get_chat(update.message.chat.id)

        cmd = msg_split[1]
        if cmd == "tag":
            if chat_in_db and chat_in_db[1]:
                tag = msg_split[2].upper()
                tag_in_db = self.db.get_tag(tag)
                if tag_in_db:
                    _, _, protected = tag_in_db
                    end_protected = not protected
                else:
                    end_protected = True

                self.db.set_tag_protected(tag, end_protected)
                update.message.reply_text(
                    f"got it, will {'NOT ' if not end_protected else ''}protect tag {tag}!"
                )
            else:
                update.message.reply_text(
                    (
                        self.markov.make_sentence()
                        if self.markov and random() > 0.7
                        else "hublubl"
                    )
                )
        elif cmd == "chat":
            password = msg_split[2]
            if password == self.protected_password:
                if chat_in_db:
                    _, protected = chat_in_db
                    end_protected = not protected
                else:
                    end_protected = True

                self.db.set_chat_protected(update.message.chat.id, end_protected)
                update.message.reply_text(
                    f"got it, will {'NOT ' if not end_protected else ''}protect this chat!"
                )
            else:
                update.message.reply_text(
                    (
                        self.markov.make_sentence()
                        if self.markov and random() > 0.7
                        else "hublubl"
                    )
                )
        else:
            update.message.reply_text(
                (self.markov.make_sentence() if self.markov and random() > 0.7 else "")
                + "???"
            )

    def tg_queue(self, update: Update, context: CallbackContext):
        if self.tumblr_client:
            blog_info = self.tumblr_client.blog_info(self.tumblr_name)
            update.message.reply_text(
                "Currently queued tumblr posts: "
                + str(blog_info["blog"].get("queue", "???"))
            )
        else:
            update.message.reply_text(
                (self.markov.make_sentence() if self.markov and random() > 0.7 else "")
                + "???"
            )

    # noinspection PyMethodMayBeStatic
    def tg_version(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        delojza_date = datetime.fromtimestamp(
            os.path.getmtime(os.path.realpath(__file__))
        ).strftime("%Y/%m/%d - %H:%M:%S")
        update.message.reply_text(
            "delojza modified date: {}\nyoutube-dl version: {}".format(
                delojza_date, YTDL_VERSION
            )
        )

    def tg_start(self, update: Update, context: CallbackContext):
        self._log_msg(update)
        update.message.reply_text(
            self.markov.make_sentence() if self.markov else "HELLO"
        )

    def tg_error(self, update: object, context: CallbackContext):
        self.logger.error(context.error)
        if isinstance(update, Update):
            update.message.reply_text(f"Something is fucked: {context.error}")

    def run_idle(self):
        self.updater.start_polling()
        self.logger.info("Started Telegram bot...")
        self.updater.idle()


if __name__ == "__main__":
    logging.basicConfig(
        level=logging.INFO,
        format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    )

    _DIR_ = os.path.dirname(os.path.realpath(__file__))
    CONFIG_PATHS = [
        "/etc/delojza/delojza.ini",
        os.path.join(os.getenv("HOME") or "", ".config/delojza/delojza.ini"),
        os.path.join(_DIR_, "delojza.ini"),
    ]

    config = ConfigParser()
    try:
        CONF_FILE = next(
            conf_path for conf_path in CONFIG_PATHS if os.path.isfile(conf_path)
        )
        config.read(CONF_FILE)
    except StopIteration:
        logging.error("No config file found, quitting.")
        sys.exit(-1)

    try:
        markov = MarkovBlabberer("initial.txt")
    except FileNotFoundError:
        logging.warning(
            "Didn't find `initial.txt`, continuing without markov blabbering!"
        )
        markov = None

    try:
        redirects: Optional[List[Tuple[str, str]]] = config.items("redirects")
    except NoSectionError:
        redirects = None

    try:
        tumblr_keys = (
            config.get("tumblr", "consumer_key"),
            config.get("tumblr", "consumer_secret"),
            config.get("tumblr", "oauth_key"),
            config.get("tumblr", "oauth_secret"),
        )
    except (NoSectionError, KeyError):
        tumblr_keys = None

    delojza = DelojzaBot(
        config.get("delojza", "tg_api_key"),
        config.get("delojza", "OUT_DIR", fallback=os.path.join(_DIR_, "out")),
        tmp_dir=config.get("delojza", "tmp_dir", fallback=tempfile.gettempdir()),
        redirects=redirects,
        protected_password=config.get("delojza", "protected_password", fallback=None),
        acoustid_key=config.get("delojza", "acoustid_api_key", fallback=None),
        tumblr_name=config.get("tumblr", "blog_name", fallback=None),
        tumblr_keys=tumblr_keys,
        markov=markov,
    )
    delojza.run_idle()