import datetime
import random
import typing
import db
import errors
import stagismo
# python-telegram-bot has a different name
# noinspection PyPackageRequirements
from telegram import Bot, Update, InlineKeyboardMarkup, InlineKeyboardButton
# noinspection PyPackageRequirements
from telegram.ext import Updater, CommandHandler, CallbackQueryHandler
import dice
import sys
import os
import cast
import re
import logging
import configparser
import markovify
import raven
import coloredlogs

# Markov model
try:
    with open("markovmodel.json") as file:
        model = markovify.Text.from_json(file.read())
except Exception:
    model = None

logging.getLogger().disabled = True
logger = logging.getLogger(__name__)
os.environ["COLOREDLOGS_LOG_FORMAT"] = "%(asctime)s %(levelname)s %(name)s %(message)s"
coloredlogs.install(level="DEBUG", logger=logger)

# Init the config reader
config = configparser.ConfigParser()
config.read("config.ini")

discord_connection = None

# Init the Sentry client
sentry = raven.Client(config["Sentry"]["token"],
                      release=raven.fetch_git_sha(os.path.dirname(__file__)),
                      install_logging_hook=False,
                      hook_libraries=[])


def catch_and_report(func: "function"):
    def new_func(bot: Bot, update: Update):
        # noinspection PyBroadException
        try:
            return func(bot, update)
        except Exception:
            logger.error(f"Critical error: {sys.exc_info()}")
            # noinspection PyBroadException
            try:
                bot.send_message(int(config["Telegram"]["main_group"]),
                                 "☢ **ERRORE CRITICO!** \n"
                                 f"Il bot ha ignorato il comando.\n"
                                 f"Una segnalazione di errore è stata automaticamente mandata a @Steffo.\n\n"
                                 f"Dettagli dell'errore:\n"
                                 f"```\n"
                                 f"{sys.exc_info()}\n"
                                 f"```", parse_mode="Markdown")
            except Exception:
                logger.error(f"Double critical error: {sys.exc_info()}")
            if not __debug__:
                sentry.user_context({
                    "id": update.effective_user.id,
                    "telegram": {
                        "username": update.effective_user.username,
                        "first_name": update.effective_user.first_name,
                        "last_name": update.effective_user.last_name
                    }
                })
                sentry.extra_context({
                    "update": update.to_dict()
                })
                sentry.captureException()
    return new_func


@catch_and_report
def cmd_ping(bot: Bot, update: Update):
    bot.send_message(update.message.chat.id, "🏓 Pong!")


@catch_and_report
def cmd_register(bot: Bot, update: Update):
    session = db.Session()
    try:
        username = update.message.text.split(" ", 1)[1]
    except IndexError:
        bot.send_message(update.message.chat.id, "⚠️ Non hai specificato un username!")
        session.close()
        return
    try:
        t = db.Telegram.create(session,
                               royal_username=username,
                               telegram_user=update.message.from_user)
    except errors.AlreadyExistingError:
        bot.send_message(update.message.chat.id, "⚠ Il tuo account Telegram è già collegato a un account RYG o"
                                                 " l'account RYG che hai specificato è già collegato a un account"
                                                 " Telegram.")
        session.close()
        return
    session.add(t)
    session.commit()
    bot.send_message(update.message.chat.id, "✅ Sincronizzazione completata!")
    session.close()


@catch_and_report
def cmd_discord(bot: Bot, update: Update):
    if discord_connection is None:
        bot.send_message(update.message.chat.id, "⚠ Il bot non è collegato a Discord al momento.")
        return
    # dirty hack as usual
    if update.message.text.endswith("full"):
        discord_connection.send("get cv full")
    else:
        discord_connection.send("get cv")
    message = discord_connection.recv()
    bot.send_message(update.message.chat.id, message, disable_web_page_preview=True, parse_mode="HTML")


@catch_and_report
def cmd_cast(bot: Bot, update: Update):
    try:
        spell: str = update.message.text.split(" ", 1)[1]
    except IndexError:
        bot.send_message(update.message.chat.id, "⚠️ Non hai specificato nessun incantesimo!\n"
                                                 "Sintassi corretta: `/cast <nome_incantesimo>`", parse_mode="Markdown")
        return
    # Open a new db session
    session = db.Session()
    # Find a target for the spell
    target = random.sample(session.query(db.Telegram).all(), 1)[0]
    # Close the session
    session.close()
    # END
    bot.send_message(update.message.chat.id, cast.cast(spell_name=spell,
                                                       target_name=target.username if target.username is not None
                                                       else target.first_name, platform="telegram"),
                     parse_mode="HTML")


@catch_and_report
def cmd_color(bot: Bot, update: Update):
    bot.send_message(update.message.chat.id, "I am sorry, unknown error occured during working with your request,"
                                             " Admin were notified")


@catch_and_report
def cmd_smecds(bot: Bot, update: Update):
    ds = random.sample(stagismo.listona, 1)[0]
    bot.send_message(update.message.chat.id, f"Secondo me, è colpa {ds}.")


@catch_and_report
def cmd_ciaoruozi(bot: Bot, update: Update):
    if update.message.from_user.username.lstrip("@") == "MeStakes":
        bot.send_message(update.message.chat.id, "Ciao me!")
    else:
        bot.send_message(update.message.chat.id, "Ciao Ruozi!")


@catch_and_report
def cmd_ahnonlosoio(bot: Bot, update: Update):
    if update.message.reply_to_message is not None and update.message.reply_to_message.text in [
        "/ahnonlosoio", "/ahnonlosoio@royalgamesbot", "Ah, non lo so io!", "Ah, non lo so neppure io!"
    ]:
        bot.send_message(update.message.chat.id, "Ah, non lo so neppure io!")
    else:
        bot.send_message(update.message.chat.id, "Ah, non lo so io!")


@catch_and_report
def cmd_balurage(bot: Bot, update: Update):
    session = db.Session()
    try:
        user = session.query(db.Telegram).filter_by(telegram_id=update.message.from_user.id).one_or_none()
        if user is None:
            bot.send_message(update.message.chat.id,
                             "⚠ Il tuo account Telegram non è registrato al RYGdb!\n\n"
                             "Registrati con `/register@royalgamesbot <nomeutenteryg>`.",
                             parse_mode="Markdown")
            return
        try:
            reason = update.message.text.split(" ", 1)[1]
        except IndexError:
            reason = None
        br = db.BaluRage(royal_id=user.royal_id, reason=reason)
        session.add(br)
        session.commit()
        bot.send_message(update.message.chat.id, f"😡 Stai sfogando la tua ira sul bot!")
    except Exception:
        raise
    finally:
        session.close()


@catch_and_report
def cmd_diario(bot: Bot, update: Update):
    session = db.Session()
    try:
        user = session.query(db.Telegram).filter_by(telegram_id=update.message.from_user.id).one_or_none()
        if user is None:
            bot.send_message(update.message.chat.id, "⚠ Il tuo account Telegram non è registrato al RYGdb!"
                                                     " Registrati con `/register@royalgamesbot <nomeutenteryg>`.",
                             parse_mode="Markdown")
            return
        try:
            text = update.message.text.split(" ", 1)[1]
            author = session.query(db.Telegram).filter_by(telegram_id=update.message.from_user.id).one_or_none()
            saver = author
        except IndexError:
            if update.message.reply_to_message is None:
                bot.send_message(update.message.chat.id,
                                 f"⚠ Non hai specificato cosa aggiungere al diario!\n\n"
                                 f"Puoi rispondere `/diario@royalgamesbot` al messaggio che vuoi salvare nel diario"
                                 f" oppure scrivere `/diario@royalgamesbot <messaggio>`"
                                 f" per aggiungere quel messaggio nel diario.",
                                 parse_mode="Markdown")
                return
            text = update.message.reply_to_message.text
            author = session.query(db.Telegram)\
                            .filter_by(telegram_id=update.message.reply_to_message.from_user.id)\
                            .one_or_none()
            saver = session.query(db.Telegram).filter_by(telegram_id=update.message.from_user.id).one_or_none()
        if text is None:
            bot.send_message(update.message.chat.id, f"⚠ Il messaggio a cui hai risposto non contiene testo.")
            return
        diario = db.Diario(timestamp=datetime.datetime.now(),
                           saver=saver,
                           author=author,
                           text=text)
        session.add(diario)
        session.commit()
        bot.send_message(update.message.chat.id,
                         f"✅ Riga [#{diario.id}](https://ryg.steffo.eu/diario#entry-{diario.id}) aggiunta al diario!",
                         parse_mode="Markdown", disable_web_page_preview=True)
    except Exception:
        raise
    finally:
        session.close()


@catch_and_report
def cmd_vote(bot: Bot, update: Update):
    session = db.Session()
    try:
        user = session.query(db.Telegram).filter_by(telegram_id=update.message.from_user.id).one_or_none()
        if user is None:
            bot.send_message(update.message.chat.id,
                             "⚠ Il tuo account Telegram non è registrato al RYGdb!"
                             " Registrati con `/register@royalgamesbot <nomeutenteryg>`.", parse_mode="Markdown")
            return
        try:
            _, mode, question = update.message.text.split(" ", 2)
        except IndexError:
            bot.send_message(update.message.chat.id,
                             "⚠ Non hai specificato tutti i parametri necessari!"
                             "Sintassi: `/vote@royalgamesbot <public|secret> <domanda>`", parse_mode="Markdown")
            return
        if mode == "public":
            vote = db.VoteQuestion(question=question, anonymous=False)
        elif mode == "secret":
            vote = db.VoteQuestion(question=question, anonymous=True)
        else:
            bot.send_message(update.message.chat.id,
                             "⚠ Non hai specificato una modalità valida!"
                             "Sintassi: `/vote@royalgamesbot <public|secret> <domanda>`", parse_mode="Markdown")
            return
        session.add(vote)
        session.flush()
        inline_keyboard = InlineKeyboardMarkup([[InlineKeyboardButton("🔵 Sì", callback_data="vote_yes")],
                                                [InlineKeyboardButton("🔴 No", callback_data="vote_no")],
                                                [InlineKeyboardButton("⚫️ Astieniti", callback_data="vote_abstain")]])
        message = bot.send_message(update.message.chat.id, vote.generate_text(session=session),
                                   reply_markup=inline_keyboard,
                                   parse_mode="HTML")
        vote.message_id = message.message_id
        session.commit()
    except Exception:
        raise
    finally:
        session.close()


@catch_and_report
def on_callback_query(bot: Bot, update: Update):
    if update.callback_query.data == "vote_yes":
        choice = db.VoteChoices.YES
        emoji = "🔵"
    elif update.callback_query.data == "vote_no":
        choice = db.VoteChoices.NO
        emoji = "🔴"
    elif update.callback_query.data == "vote_abstain":
        choice = db.VoteChoices.ABSTAIN
        emoji = "⚫️"
    else:
        raise NotImplementedError()
    if update.callback_query.data.startswith("vote_"):
        session = db.Session()
        try:
            user = session.query(db.Telegram).filter_by(telegram_id=update.callback_query.from_user.id).one_or_none()
            if user is None:
                bot.answer_callback_query(update.callback_query.id, show_alert=True,
                                          text="⚠ Il tuo account Telegram non è registrato al RYGdb!"
                                               " Registrati con `/register@royalgamesbot <nomeutenteryg>`.",
                                          parse_mode="Markdown")
                return
            question = session.query(db.VoteQuestion)\
                              .filter_by(message_id=update.callback_query.message.message_id)\
                              .one()
            answer = session.query(db.VoteAnswer).filter_by(question=question, user=user).one_or_none()
            if answer is None:
                answer = db.VoteAnswer(question=question, choice=choice, user=user)
                session.add(answer)
                bot.answer_callback_query(update.callback_query.id, text=f"Hai votato {emoji}.", cache_time=1)
            elif answer.choice == choice:
                session.delete(answer)
                bot.answer_callback_query(update.callback_query.id, text=f"Hai ritratto il tuo voto.", cache_time=1)
            else:
                answer.choice = choice
                bot.answer_callback_query(update.callback_query.id, text=f"Hai cambiato il tuo voto in {emoji}.",
                                          cache_time=1)
            session.commit()
            inline_keyboard = InlineKeyboardMarkup([[InlineKeyboardButton("🔵 Sì",
                                                                          callback_data="vote_yes")],
                                                    [InlineKeyboardButton("🔴 No",
                                                                          callback_data="vote_no")],
                                                    [InlineKeyboardButton("⚫️ Astieniti",
                                                                          callback_data="vote_abstain")]])
            bot.edit_message_text(message_id=update.callback_query.message.message_id,
                                  chat_id=update.callback_query.message.chat.id,
                                  text=question.generate_text(session),
                                  reply_markup=inline_keyboard,
                                  parse_mode="HTML")
        except Exception:
            raise
        finally:
            session.close()


@catch_and_report
def cmd_eat(bot: Bot, update: Update):
    try:
        food: str = update.message.text.split(" ", 1)[1].capitalize()
    except IndexError:
        bot.send_message(update.message.chat.id, "⚠️ Non hai specificato cosa mangiare!\n"
                                                 "Sintassi corretta: `/eat <cibo>`", parse_mode="Markdown")
        return
    if "tonnuooooooro" in food.lower():
        bot.send_message(update.message.chat.id, "👻 Il pesce che hai mangiato era posseduto.\n"
                                                 "Spooky!")
        return
    bot.send_message(update.message.chat.id, f"🍗 Hai mangiato {food}!")


@catch_and_report
def cmd_ship(bot: Bot, update: Update):
    try:
        _, name_one, name_two = update.message.text.split(" ", 2)
    except ValueError:
        bot.send_message(update.message.chat.id, "⚠️ Non hai specificato correttamente i due nomi!\n"
                                                 "Sintassi corretta: `/ship <nome> <nome>`", parse_mode="Markdown")
        return
    name_one = name_one.lower()
    name_two = name_two.lower()
    part_one = re.search(r"^[A-Za-z][^aeiouAEIOU]*[aeiouAEIOU]?", name_one)
    part_two = re.search(r"[^aeiouAEIOU]*[aeiouAEIOU]?[A-Za-z]$", name_two)
    try:
        mixed = part_one.group(0) + part_two.group(0)
    except Exception:
        bot.send_message(update.message.chat.id, "⚠ I nomi specificati non sono validi.\n"
                                                 "Riprova con dei nomi diversi!")
        return
    if part_one is None or part_two is None:
        bot.send_message(update.message.chat.id, "⚠ I nomi specificati non sono validi.\n"
                                                 "Riprova con dei nomi diversi!")
        return
    bot.send_message(update.message.chat.id, f"💕 {name_one.capitalize()} + {name_two.capitalize()} ="
                                             f" {mixed.capitalize()}")


@catch_and_report
def cmd_profile(bot: Bot, update: Update):
    session = db.Session()
    user = session.query(db.Telegram).filter_by(telegram_id=update.message.from_user.id).join(db.Royal).one_or_none()
    session.close()
    if user is None:
        bot.send_message(update.message.chat.id, "⚠ Non sei connesso a Royalnet!\n"
                                                 "Per registrarti, utilizza il comando /register.")
        return
    bot.send_message(update.message.chat.id, f"👤 [Profilo di {user.royal.username}]"
                                             f"(http://ryg.steffo.eu/profile/{user.royal.username})\n"
                                             f"Attualmente, hai **{user.royal.fiorygi}** fiorygi.",
                     parse_mode="Markdown")


@catch_and_report
def cmd_bridge(bot: Bot, update: Update):
    try:
        data = update.message.text.split(" ", 1)[1]
    except IndexError:
        bot.send_message(update.message.chat.id,
                         "⚠ Non hai specificato un comando!\n"
                         "Sintassi corretta: `/bridge <comando> <argomenti>`",
                         parse_mode="Markdown")
        return
    discord_connection.send(f"!{data}")
    result = discord_connection.recv()
    if result == "error":
        bot.send_message(update.message.chat.id, "⚠ Il comando specificato non esiste.")
    if result == "success":
        bot.send_message(update.message.chat.id, "⏩ Comando eseguito su Discord.")


def parse_timestring(timestring: str) -> typing.Union[datetime.timedelta, datetime.datetime]:
    # Unix time
    try:
        unix_timestamp = float(timestring)
        return datetime.datetime.fromtimestamp(unix_timestamp)
    except ValueError:
        pass
    # Dashed time
    try:
        split_date = timestring.split("-")
        now = datetime.datetime.now()
        if len(split_date) == 5:
            # yyyy-mm-dd-hh-mm
            return datetime.datetime(year=int(split_date[0]),
                                     month=int(split_date[1]),
                                     day=int(split_date[2]),
                                     hour=int(split_date[3]),
                                     minute=int(split_date[4]))
        elif len(split_date) == 4:
            return now.replace(month=int(split_date[0]),
                               day=int(split_date[1]),
                               hour=int(split_date[2]),
                               minute=int(split_date[3]))
        elif len(split_date) == 3:
            return now.replace(day=int(split_date[0]),
                               hour=int(split_date[1]),
                               minute=int(split_date[2]))
        elif len(split_date) == 2:
            return now.replace(hour=int(split_date[0]),
                               minute=int(split_date[1]))
    except (IndexError, ValueError):
        pass
    # Simple time from now
    try:
        if timestring.endswith("w"):
            return datetime.timedelta(weeks=float(timestring[:-1]))
        elif timestring.endswith("d"):
            return datetime.timedelta(days=float(timestring[:-1]))
        elif timestring.endswith("h"):
            return datetime.timedelta(hours=float(timestring[:-1]))
        elif timestring.endswith("m"):
            return datetime.timedelta(minutes=float(timestring[:-1]))
    except Exception:
        pass
    # Nothing found
    raise ValueError("Nothing was found.")


@catch_and_report
def cmd_newevent(bot: Bot, update: Update):
    try:
        _, timestring, name_desc = update.message.text.split(" ", 2)
    except ValueError:
        bot.send_message(update.message.chat.id, "⚠️ Sintassi del comando non valida.\n"
                                                 "Sintassi corretta:\n"
                                                 "```/newevent <timestamp|[[[anno-]mese-]giorno-]ore-minuti"
                                                 "|{numero}{w|d|h|m}> <nome>\n"
                                                 "[descrizione]```", parse_mode="Markdown")
        return
    try:
        name, description = name_desc.split("\n", 1)
    except ValueError:
        name = name_desc
        description = None
    # Parse the timestring
    try:
        parsed_time = parse_timestring(timestring)
        if parsed_time < datetime.datetime.now():
            raise PastDateError()
    except ValueError:
        bot.send_message(update.message.chat.id, "⚠ Non è stato possibile leggere la data.\n"
                                                 "Sintassi corretta:\n"
                                                 "```/newevent <timestamp|[[[anno-]mese-]giorno-]ore-minuti"
                                                 "|{numero}{w|d|h|m}> <nome>\n"
                                                 "[descrizione]```", parse_mode="Markdown")
        return
    except PastDateError:
        bot.send_message(update.message.chat.id, "⚠ La data inserita è una data passata.\n"
                                                 "per favore inserisci una data futura.\n", parse_mode="Markdown")
        return
    # Create the event
    session = db.Session()
    telegram_user = session.query(db.Telegram)\
                           .filter_by(telegram_id=update.message.from_user.id)\
                           .join(db.Royal)\
                           .one_or_none()
    event = db.Event(author=telegram_user.royal,
                     name=name,
                     description=description,
                     time=datetime.datetime.fromtimestamp(0))
    # Set the time
    if isinstance(parsed_time, datetime.datetime):
        event.time = parsed_time
    else:
        event.time_left = parsed_time
    # Save the event
    session.add(event)
    session.commit()
    session.close()
    bot.send_message(update.message.chat.id, "✅ Evento aggiunto al Calendario Royal Games!")


@catch_and_report
def cmd_calendar(bot: Bot, update: Update):
    session = db.Session()
    next_events = session.query(db.Event).filter(db.Event.time > datetime.datetime.now()).order_by(db.Event.time).all()
    session.close()
    msg = "📆 Prossimi eventi\n"
    for event in next_events:
        if event.time_left.days >= 1:
            msg += event.time.strftime('%Y-%m-%d %H:%M')
        else:
            msg += f"{int(event.time_left.total_seconds() // 3600)}h" \
                   f" {int((event.time_left.total_seconds() % 3600) // 60)}m"
        msg += f" <b>{event.name}</b>\n"
    msg += '\nPer ulteriori dettagli, visita <a href="https://ryg.steffo.eu">Royalnet</a>'
    bot.send_message(update.message.chat.id, msg, parse_mode="HTML", disable_web_page_preview=True)


@catch_and_report
def cmd_markov(bot: Bot, update: Update):
    if model is None:
        bot.send_message(update.message.chat.id, "⚠️ Il modello Markov non è disponibile.")
        return
    try:
        _, first_word = update.message.text.split(" ", 1)
    except ValueError:
        sentence = model.make_sentence(tries=1000)
        if sentence is None:
            bot.send_message(update.message.chat.id, "⚠ Complimenti! Hai vinto la lotteria di Markov!\n"
                                                     "O forse l'hai persa.\n"
                                                     "Non sono riuscito a generare una frase, riprova.")
            return
        bot.send_message(update.message.chat.id, sentence)
    else:
        sentence = model.make_sentence_with_start(first_word, tries=1000)
        if sentence is None:
            bot.send_message(update.message.chat.id, "⚠ Non è stato possibile generare frasi partendo da questa"
                                                     " parola.")
            return
        bot.send_message(update.message.chat.id, sentence)


@catch_and_report
def cmd_roll(bot: Bot, update: Update):
    dice_string = update.message.text.split(" ", 1)[1]
    try:
        result = dice.roll(f"{dice_string}t")
    except dice.DiceBaseException:
        bot.send_message(update.message.chat.id, "⚠ Il tiro dei dadi è fallito. Controlla la sintassi!")
        return
    bot.send_message(update.message.chat.id, f"🎲 {result}")


def process(arg_discord_connection):
    if arg_discord_connection is not None:
        global discord_connection
        discord_connection = arg_discord_connection
    logger.info("Creating updater...")
    u = Updater(config["Telegram"]["bot_token"])
    logger.info("Registering handlers...")
    u.dispatcher.add_handler(CommandHandler("ping", cmd_ping))
    u.dispatcher.add_handler(CommandHandler("register", cmd_register))
    u.dispatcher.add_handler(CommandHandler("discord", cmd_discord))
    u.dispatcher.add_handler(CommandHandler("cv", cmd_discord))
    u.dispatcher.add_handler(CommandHandler("cast", cmd_cast))
    u.dispatcher.add_handler(CommandHandler("color", cmd_color))
    u.dispatcher.add_handler(CommandHandler("smecds", cmd_smecds))
    u.dispatcher.add_handler(CommandHandler("ciaoruozi", cmd_ciaoruozi))
    u.dispatcher.add_handler(CommandHandler("ahnonlosoio", cmd_ahnonlosoio))
    u.dispatcher.add_handler(CommandHandler("balurage", cmd_balurage))
    u.dispatcher.add_handler(CommandHandler("diario", cmd_diario))
    u.dispatcher.add_handler(CommandHandler("spaggia", cmd_diario))
    u.dispatcher.add_handler(CommandHandler("vote", cmd_vote))
    u.dispatcher.add_handler(CommandHandler("eat", cmd_eat))
    u.dispatcher.add_handler(CommandHandler("ship", cmd_ship))
    u.dispatcher.add_handler(CommandHandler("profile", cmd_profile))
    u.dispatcher.add_handler(CommandHandler("bridge", cmd_bridge))
    u.dispatcher.add_handler(CommandHandler("newevent", cmd_newevent))
    u.dispatcher.add_handler(CommandHandler("calendar", cmd_calendar))
    u.dispatcher.add_handler(CommandHandler("markov", cmd_markov))
    u.dispatcher.add_handler(CommandHandler("roll", cmd_roll))
    u.dispatcher.add_handler(CommandHandler("r", cmd_roll))
    u.dispatcher.add_handler(CallbackQueryHandler(on_callback_query))
    logger.info("Handlers registered.")
    u.start_polling()
    logger.info("Polling started.")
    u.idle()


if __name__ == "__main__":
    process(None)