import os
import sys
import signal
import interactions
import database

from dotenv import load_dotenv
from steamid import SteamID
from loguru import logger

class GracefulDeath:
    """Catch signals to allow graceful shutdown."""
    def __init__(self): 
        self.receivedSignal=self.receivedSignalTermSignal=False 
        catchSignals = [
                1,
                2,
                3,
                10,
                12,
                15,
        ]
        for signum in catchSignals:
            signal.signal(signum, self.handler)

    def handler(self, signum, frame):
        self.lastSignal=signum
        self.receivedSignal=True
        if signum in [2, 3, 15]:
            self.receivedSignalTermSignal=True

def main(args):
    sighandler = GracefulDeath()
    load_dotenv()
    token = os.getenv('DISCORD_TOKEN')
    host = os.getenv('MYSQL_HOST')
    user = os.getenv('MYSQL_USER')
    password = os.getenv('MYSQL_PASSWORD')
    db = os.getenv('MYSQL_DATABASE')

    bot = interactions.Client(token=token)

    mysql = database.create_connection(host, user, password, db)
    try:
        if args[0] == "init_database":
            database.init_test_database(mysql)
            logger.info(f"First init of database... Please disable this afterwards with the flag init_dabase")
    except:
        logger.info(f"Skipping database init...")
        pass

    @bot.command(
            name="reserve_slot",
            description="Claim your reserved slot on the DM Server",
            scope=433600034983116810,
            options=[
                interactions.Option(
                    name="steamid",
                    description="Please provide your SteamID, from https://steamid.xyz/",
                    type=interactions.OptionType.STRING,
                    required=True,
                    ),
                ],
            )

    async def reserve_slot(ctx: interactions.CommandContext, steamid: str):
        channel = ctx.channel.id
        user = ctx.user

        if channel != "433738529898627073":
            await ctx.send(f"This command only works in the Channel <#433738529898627073>!", ephemeral=True)
            logger.debug(f"Command was used in the wrong channel. ({channel})")
            return

        try:
            steam_id = SteamID(steamid)
        except:
            await ctx.send(f"You failed to give a valid SteamID as it seems, please head to <https://steamid.xyz/> and check.", ephemeral=True)
            logger.debug(f"User ({user.id}) has give a invalid SteamID. Could not convert!")
            return

        if steam_id.isValid() == False:
            await ctx.send(f"You failed to give a valid SteamID as it seems, please head to <https://steamid.xyz/> and check.", ephemeral=True)
            logger.debug(f"User ({user.id}) has given a invalid SteamID!")
            return

        try:
            database.create_reserved_slot(mysql, user, steam_id.steam2(1))
            await ctx.send(f"You just claimed a reserved slot for: `{steam_id.steam2(1)}`!")
            logger.debug(f"{steam_id.steam2(1)} has just claimed a reserved slot.")
        except Exception as err:
            if str(err) != "Duplicate entrys":
                await ctx.send(f"Something failed with the database, please try again later.", ephemeral=True)
                logger.warning(f"Error while trying to access database.", err)
                return
            await ctx.send(f"You have already claimed a reserved slot!", ephemeral=True)
            logger.debug(f"{steam_id.steam2(1)} or {user.id} is already in the database.")

    bot.start()

    while True:
        logger.info("Trying graceful shutdown...")
        if sighandler.receivedSignal:
            bot.remove("reserve_slot", remove_commands=True)
            exit()

if __name__ == '__main__':
    main(sys.argv[1:])