main.py

from __future__ import annotations

import asyncio
import datetime
import logging
import os
import platform
import random
import sqlite3
import time

import discord
import psutil
from discord import option
from discord.ext import commands
from dotenv import load_dotenv

import eft  # contains all information about items from EFT

# Bot logger
logger = logging.getLogger("discord")
logger.setLevel(logging.DEBUG)
handler = logging.FileHandler(filename="discord.log", encoding="utf-8", mode="w")
handler.setFormatter(logging.Formatter("%(asctime)s:%(levelname)s:%(name)s: %(message)s"))
logger.addHandler(handler)

bot = commands.Bot(help_command=commands.DefaultHelpCommand())


# Bot startup message
@bot.event
async def on_ready() -> None:
    await bot.change_presence(activity=discord.Game("/help"))
    bot.add_view(RandomModifierButton())
    logging.info(f"Logged in as {bot.user}")
    logging.info(f"Guilds: {len(bot.guilds)}")


# Database name
USER_SETTINGS_DB: str = "user_settings.db"

# Embed Strings
REROLLED_PREFIX: str = "Rerolled "
SUPPORT_SERVER: str = "Support Server"
DISCORD_SERVER: str = "https://discord.gg/mgXmtMZgfb"
LOADOUT_LOTTERY_ICON: str = "https://i.imgur.com/tqtPhBA.png"
GITHUB_URL: str = "https://github.com/x0rtex/LoadoutLotteryBot"
WELCOME_TEXT: str = "🎲 Welcome to Loadout Lottery! 🎰"
WELCOME_TEXT_META: str = "🎲 Welcome to META Loadout Lottery! 🎰"

# Reroll Slots Random Modifiers
REROLL_ONE: str = "Re-roll 1 slot"
REROLL_TWO: str = "Re-roll 2 slots"
REROLL_ONE_PLACEHOLDER: str = "Select slot to re-roll"
REROLL_TWO_PLACEHOLDER: str = "Select slots to re-roll"
REROLL_OPTIONS_NO_RIG: list[discord.SelectOption] = [
    discord.SelectOption(label=eft.WEAPON, emoji="🔫"),
    discord.SelectOption(label=eft.ARMORED_RIG, emoji="🛡️"),
    discord.SelectOption(label=eft.HELMET, emoji="🪖"),
    discord.SelectOption(label=eft.BACKPACK, emoji="🎒"),
    discord.SelectOption(label=eft.GUN_MOD, emoji="🔧"),
    discord.SelectOption(label=eft.AMMO, emoji="🔍"),
    discord.SelectOption(label=eft.MAP, emoji="🗺️"),
]
REROLL_OPTIONS_RIG: list[discord.SelectOption] = [
    discord.SelectOption(label=eft.WEAPON, emoji="🔫"),
    discord.SelectOption(label=eft.ARMOR_VEST, emoji="🛡️"),
    discord.SelectOption(label=eft.RIG, emoji="🦺"),
    discord.SelectOption(label=eft.HELMET, emoji="🪖"),
    discord.SelectOption(label=eft.BACKPACK, emoji="🎒"),
    discord.SelectOption(label=eft.GUN_MOD, emoji="🔧"),
    discord.SelectOption(label=eft.AMMO, emoji="🔍"),
    discord.SelectOption(label=eft.MAP, emoji="🗺️"),
]

# User Settings
UserSettings = dict[
               str: bool,
               str: bool,
               str: bool,
               str: bool,
               str: bool,
               str: {
                   eft.PRAPOR: 1 | 2 | 3 | 4,
                   eft.THERAPIST: 1 | 2 | 3 | 4,
                   eft.SKIER: 1 | 2 | 3 | 4,
                   eft.PEACEKEEPER: 1 | 2 | 3 | 4,
                   eft.MECHANIC: 1 | 2 | 3 | 4,
                   eft.RAGMAN: 1 | 2 | 3 | 4,
                   eft.JAEGER: 0 | 1 | 2 | 3 | 4,
               },
               ]

DEFAULT_SETTINGS: UserSettings = {
    "flea": True,
    "allow_quest_locked": True,
    "allow_fir_only": False,
    "meta_only": False,
    "roll_thermals": False,
    "trader_levels": {
        eft.PRAPOR: 4,
        eft.THERAPIST: 4,
        eft.SKIER: 4,
        eft.PEACEKEEPER: 4,
        eft.MECHANIC: 4,
        eft.RAGMAN: 4,
        eft.JAEGER: 4,
    },
}


class RandomModifierButton(discord.ui.View):
    def __init__(self) -> None:
        super().__init__(timeout=None)
        self.value: bool = False

    @discord.ui.button(label="Roll Random Modifier", style=discord.ButtonStyle.green, custom_id="persistent_view:roll")
    async def button_callback_yes(self, _, interaction: discord.Interaction) -> None:
        await interaction.response.edit_message(view=None)
        self.value: bool = True
        self.stop()

    @discord.ui.button(label="Finish", style=discord.ButtonStyle.grey, custom_id="persistent_view:no-roll")
    async def button_callback_no(self, _, interaction: discord.Interaction) -> None:
        await interaction.response.edit_message(view=None)
        self.stop()


class RerollOneSlotWithRig(discord.ui.View):
    def __init__(self) -> None:
        super().__init__(timeout=None)
        self.value = None

    @discord.ui.select(
        custom_id="persistent_view:reroll-one-rig",
        placeholder=REROLL_ONE_PLACEHOLDER,
        min_values=1,
        max_values=1,
        options=REROLL_OPTIONS_RIG,
    )
    async def select_callback(self, select: discord.ui.select, _) -> None:
        self.value = [select.values[0]]
        self.stop()


class RerollOneSlotNoRig(discord.ui.View):
    def __init__(self) -> None:
        super().__init__(timeout=None)
        self.value = None

    @discord.ui.select(
        custom_id="persistent_view:reroll-one-norig",
        placeholder=REROLL_ONE_PLACEHOLDER,
        min_values=1,
        max_values=1,
        options=REROLL_OPTIONS_NO_RIG,
    )
    async def select_callback(self, select: discord.ui.select, _) -> None:
        self.value = [select.values[0]]
        self.stop()


class RerollTwoSlotsWithRig(discord.ui.View):
    def __init__(self) -> None:
        super().__init__(timeout=None)
        self.value = None

    @discord.ui.select(
        custom_id="persistent_view:reroll-two-rig",
        placeholder=REROLL_TWO_PLACEHOLDER,
        min_values=2,
        max_values=2,
        options=REROLL_OPTIONS_RIG,
    )
    async def select_callback(self, select: discord.ui.select, _) -> None:
        self.value = select.values
        self.stop()


class RerollTwoSlotsNoRig(discord.ui.View):
    def __init__(self) -> None:
        super().__init__(timeout=None)
        self.value = None

    @discord.ui.select(
        custom_id="persistent_view:reroll-two-norig",
        placeholder=REROLL_TWO_PLACEHOLDER,
        min_values=2,
        max_values=2,
        options=REROLL_OPTIONS_NO_RIG,
    )
    async def select_callback(self, select: discord.ui.select, _) -> None:
        self.value = select.values
        self.stop()


def initialize_database() -> None:
    with sqlite3.connect(USER_SETTINGS_DB) as con:
        c = con.cursor()
        c.execute("""CREATE TABLE IF NOT EXISTS user_settings (
                        user_id INTEGER PRIMARY KEY,
                        flea INTEGER,
                        allow_quest_locked INTEGER,
                        allow_fir_only INTEGER,
                        meta_only INTEGER,
                        roll_thermals INTEGER,
                        prapor INTEGER,
                        therapist INTEGER,
                        skier INTEGER,
                        peacekeeper INTEGER,
                        mechanic INTEGER,
                        ragman INTEGER,
                        jaeger INTEGER
                    )""")
        con.commit()


def user_exists(cursor, user_id: int) -> bool:
    cursor.execute("SELECT COUNT(*) FROM user_settings WHERE user_id = ?", (user_id,))
    return cursor.fetchone()[0] > 0


def write_user_settings(user_id: int, user_settings: UserSettings) -> None:
    with sqlite3.connect(USER_SETTINGS_DB) as con:
        c = con.cursor()

        if user_exists(c, user_id):
            c.execute("""UPDATE user_settings SET
                            flea = ?,
                            allow_quest_locked = ?,
                            allow_fir_only = ?,
                            meta_only = ?,
                            roll_thermals = ?,
                            prapor = ?,
                            therapist = ?,
                            skier = ?,
                            peacekeeper = ?,
                            mechanic = ?,
                            ragman = ?,
                            jaeger = ?
                        WHERE user_id = ?""",
                      (user_settings["flea"],
                       user_settings["allow_quest_locked"],
                       user_settings["allow_fir_only"],
                       user_settings["meta_only"],
                       user_settings["roll_thermals"],
                       user_settings["trader_levels"][eft.PRAPOR],
                       user_settings["trader_levels"][eft.THERAPIST],
                       user_settings["trader_levels"][eft.SKIER],
                       user_settings["trader_levels"][eft.PEACEKEEPER],
                       user_settings["trader_levels"][eft.MECHANIC],
                       user_settings["trader_levels"][eft.RAGMAN],
                       user_settings["trader_levels"][eft.JAEGER],
                       user_id))

        else:
            c.execute("""INSERT INTO user_settings (
                            user_id,
                            flea,
                            allow_quest_locked,
                            allow_fir_only,
                            meta_only,
                            roll_thermals,
                            prapor,
                            therapist,
                            skier,
                            peacekeeper,
                            mechanic,
                            ragman,
                            jaeger
                        ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
                      (user_id,
                       user_settings["flea"],
                       user_settings["allow_quest_locked"],
                       user_settings["allow_fir_only"],
                       user_settings["meta_only"],
                       user_settings["roll_thermals"],
                       user_settings["trader_levels"][eft.PRAPOR],
                       user_settings["trader_levels"][eft.THERAPIST],
                       user_settings["trader_levels"][eft.SKIER],
                       user_settings["trader_levels"][eft.PEACEKEEPER],
                       user_settings["trader_levels"][eft.MECHANIC],
                       user_settings["trader_levels"][eft.RAGMAN],
                       user_settings["trader_levels"][eft.JAEGER]))

        con.commit()


def read_user_settings(user_id: int) -> dict:
    with sqlite3.connect(USER_SETTINGS_DB) as con:
        c = con.cursor()
        c.execute("SELECT * FROM user_settings WHERE user_id = ?", (user_id,))
        row = c.fetchone()
        if row is None:
            return DEFAULT_SETTINGS
        return {
            "flea": bool(row[1]),
            "allow_quest_locked": bool(row[2]),
            "allow_fir_only": bool(row[3]),
            "meta_only": bool(row[4]),
            "roll_thermals": bool(row[5]),
            "trader_levels": {
                eft.PRAPOR: row[6],
                eft.THERAPIST: row[7],
                eft.SKIER: row[8],
                eft.PEACEKEEPER: row[9],
                eft.MECHANIC: row[10],
                eft.RAGMAN: row[11],
                eft.JAEGER: row[12],
            },
        }


def show_user_settings(user_settings: UserSettings, ctx: discord.ApplicationContext) -> discord.Embed:
    embed_msg = discord.Embed()
    embed_msg.set_author(name=SUPPORT_SERVER, icon_url=LOADOUT_LOTTERY_ICON, url=DISCORD_SERVER)
    embed_msg.set_thumbnail(url=ctx.interaction.user.display_avatar.url)

    fields: list = [
                       (trader, "Locked" if level == 0 else f"LL{level}")
                       for trader, level in user_settings["trader_levels"].items()
                   ] + [
                       ("Flea Market", user_settings["flea"]),
                       ("Allow Quest Locked Items", user_settings["allow_quest_locked"]),
                       ("Allow FIR-Only Items", user_settings["allow_fir_only"]),
                       ("Allow thermals", user_settings["roll_thermals"]),
                       ("Meta Only", user_settings["meta_only"]),
                   ]

    for name, value in fields:
        embed_msg.add_field(name=name, value=value)

    return embed_msg


def roll_items(user_settings: UserSettings) -> (list, bool):
    filtered_items = filter_items(user_settings)

    weapon = random.choice(filtered_items[eft.WEAPON])
    armor = random.choice(filtered_items[eft.ARMOR_VEST] + filtered_items[eft.ARMORED_RIG])
    helmet = random.choice(filtered_items[eft.HELMET])
    backpack = random.choice(filtered_items[eft.BACKPACK])
    gun_mods = random.choice(filtered_items[eft.GUN_MOD])
    ammo = random.choice(filtered_items[eft.AMMO])
    map_ = random.choice(filtered_items[eft.MAP])

    rolls: list = [weapon, armor, helmet, backpack, gun_mods, ammo, map_]

    need_rig: bool = armor.category == eft.ARMOR_VEST
    if need_rig:
        rolled_rig = random.choice(filtered_items[eft.RIG])
        rolls.insert(2, rolled_rig)

    return filtered_items, rolls, need_rig


def filter_items(user_settings: UserSettings) -> dict:
    return {
        eft.WEAPON: tuple(item for item in eft.ALL_WEAPONS if check_item(item, user_settings)),
        eft.ARMOR_VEST: tuple(item for item in eft.ALL_ARMOR_VESTS if check_item(item, user_settings)),
        eft.ARMORED_RIG: tuple(item for item in eft.ALL_ARMORED_RIGS if check_item(item, user_settings)),
        eft.HELMET: tuple(item for item in eft.ALL_HELMETS if check_item(item, user_settings)),
        eft.RIG: tuple(item for item in eft.ALL_RIGS if check_item(item, user_settings)),
        eft.BACKPACK: tuple(item for item in eft.ALL_BACKPACKS if check_item(item, user_settings)),
        eft.GUN_MOD: tuple(trader for trader in eft.ALL_GUN_MODS if check_trader_modifier(trader, user_settings)),
        eft.AMMO: tuple(trader for trader in eft.ALL_AMMO if check_trader_modifier(trader, user_settings)),
        eft.MAP: tuple(gamerule for gamerule in eft.ALL_MAPS if check_gamerule(gamerule, user_settings)),
    }


def check_item(item: eft.Item, user_settings: UserSettings) -> bool:
    if not item.meta and user_settings["meta_only"]:
        return False

    if item.always_obtainable or (user_settings["flea"] and item.flea):
        return True

    if not user_settings["flea"] and not item.trader_info:
        return user_settings["allow_fir_only"]

    return check_item_traders(item, user_settings)


def check_item_traders(item: eft.Item, user_settings: UserSettings) -> bool:
    for trader_name, obtains in item.trader_info.items():
        for obtain in obtains:
            trader_level = user_settings["trader_levels"].get(trader_name)
            if ((trader_level < obtain.level)
                    or (obtain.quest_locked and not user_settings["allow_quest_locked"])
                    or (obtain.barter and not user_settings["flea"])):
                return False
    return True


def roll_random_modifier(user_settings: UserSettings) -> eft.GameRule:
    filtered_good_modifiers = eft.GOOD_MODIFIERS  # May need to filter these later
    filtered_ok_modifiers = tuple(ok_mod for ok_mod in eft.OK_MODIFIERS if check_gamerule(ok_mod, user_settings))
    filtered_bad_modifiers = eft.BAD_MODIFIERS  # May need to filter these later

    modifiers = random.choice((filtered_good_modifiers, filtered_ok_modifiers, filtered_bad_modifiers))
    return random.choice(modifiers)


def check_trader_modifier(trader_modifier: eft.GameRule, user_settings: UserSettings) -> bool:
    if trader_modifier.name == eft.NO_RESTRICTIONS and not user_settings["flea"]:
        return False

    for level in range(2, 5):
        if trader_modifier.name == getattr(eft, f"LL{level}_TRADERS"):
            return all(trader_level >= level for trader_level in user_settings["trader_levels"].values())

    return True


def check_gamerule(gamerule: eft.GameRule, user_settings: UserSettings) -> bool:
    return not (user_settings["meta_only"] and not gamerule.meta
                or gamerule.name == "The Lab" and not user_settings["flea"]
                or gamerule.name == "Ground Zero" and user_settings["flea"]
                or gamerule.name == "Use thermal" and not user_settings["roll_thermals"])


async def reveal_roll(
        ctx: discord.ApplicationContext,
        embed_msg: discord.Embed,
        rolled_item: eft.Item | eft.GameRule,
        prefix: str,
) -> None:
    embed_msg.set_image(url="")
    embed_msg.add_field(name=f"{prefix}{rolled_item.category}:", value=":grey_question:", inline=False)

    if not ctx.response.is_done():
        await ctx.respond(embed=embed_msg)
    else:
        await ctx.edit(embed=embed_msg, view=None)

    await asyncio.sleep(1)
    embed_msg.set_field_at(
        index=-1,
        name=f"{prefix}{rolled_item.category}:",
        value=f"{rolled_item.name}",
        inline=False,
    )

    embed_msg.set_image(url=rolled_item.image_url)
    await ctx.edit(embed=embed_msg, view=None)
    await asyncio.sleep(1.5)


async def is_random_modifier_special(
        rolled_random_modifier: eft.GameRule,
        need_rig: bool,
        ctx: discord.ApplicationContext,
        embed_msg: discord.Embed,
        filtered_items: dict[str, list],
) -> None:
    if rolled_random_modifier.name == REROLL_ONE:
        select = RerollOneSlotWithRig() if need_rig else RerollOneSlotNoRig()
        await reroll(ctx, select, embed_msg, filtered_items)

    elif rolled_random_modifier.name == REROLL_TWO:
        select = RerollTwoSlotsWithRig() if need_rig else RerollTwoSlotsNoRig()
        await reroll(ctx, select, embed_msg, filtered_items)


async def reroll(
        ctx: discord.ApplicationContext,
        select: discord.ui.select,
        embed_msg: discord.Embed,
        filtered_items: dict[str, list],
) -> None:
    await ctx.edit(embed=embed_msg, view=select)
    await select.wait()

    for category in select.value:
        rerolled = random.choice(filtered_items[category])

        if ctx.command.name == "roll":
            await reveal_roll(ctx, embed_msg, rerolled, REROLLED_PREFIX)
        elif ctx.command.name == "fastroll":
            embed_msg.add_field(
                name=f"{REROLLED_PREFIX}{rerolled.category}:",
                value=f"{rerolled.name}",
                inline=False,
            )


def create_embed(ctx: discord.ApplicationContext, user_settings: UserSettings) -> discord.Embed:
    embed_msg = discord.Embed(title=WELCOME_TEXT_META if user_settings["meta_only"] else WELCOME_TEXT, url=GITHUB_URL)
    embed_msg.set_author(name=SUPPORT_SERVER, icon_url=LOADOUT_LOTTERY_ICON, url=DISCORD_SERVER)
    embed_msg.set_thumbnail(url=ctx.interaction.user.display_avatar.url)
    return embed_msg


def print_command_timestamp(ctx: discord.ApplicationContext) -> None:
    logging.info(f"*️⃣️ {time.ctime(time.time())} *️⃣️ /{ctx.command.name} *️⃣")


# /roll
@bot.slash_command(name="roll", description="Loadout Lottery!")
@commands.cooldown(1, 20, commands.BucketType.channel)
async def roll(ctx: discord.ApplicationContext) -> None:
    print_command_timestamp(ctx)
    initialize_database()
    user_settings = read_user_settings(ctx.user.id)

    embed_msg = create_embed(ctx, user_settings)
    filtered_items, rolls, need_rig = roll_items(user_settings)

    for rolled_item in rolls:
        await reveal_roll(ctx, embed_msg, rolled_item, "")

    button = RandomModifierButton()
    embed_msg.set_image(url="")
    await ctx.edit(embed=embed_msg, view=button)
    await button.wait()
    if button.value:
        rolled_random_modifier = roll_random_modifier(user_settings)
        await asyncio.sleep(1)
        await reveal_roll(ctx, embed_msg, rolled_random_modifier, "")

        # Check if random modifier requires further action
        await is_random_modifier_special(rolled_random_modifier, need_rig, ctx, embed_msg, filtered_items)

    await asyncio.sleep(5)
    embed_msg.set_image(url="")
    embed_msg.set_footer(text="Enjoy!")
    await ctx.edit(embed=embed_msg, view=None)


# /fastroll
@bot.slash_command(name="fastroll", description="Loadout Lottery! (Without the waiting around)")
@commands.cooldown(1, 5, commands.BucketType.user)
async def fastroll(ctx: discord.ApplicationContext) -> None:
    print_command_timestamp(ctx)
    initialize_database()
    user_settings = read_user_settings(ctx.user.id)

    embed_msg = create_embed(ctx, user_settings)
    filtered_items, rolls, need_rig = roll_items(user_settings)

    for rolled_item in rolls:
        embed_msg.add_field(name=f"{rolled_item.category}:", value=f"{rolled_item.name}", inline=False)

    button = RandomModifierButton()
    await ctx.respond(embed=embed_msg, view=button)
    await button.wait()
    if button.value:
        rolled_random_modifier = roll_random_modifier(user_settings)
        embed_msg.add_field(
            name=f"{rolled_random_modifier.category}:",
            value=f"{rolled_random_modifier.name}",
            inline=False,
        )

        await is_random_modifier_special(rolled_random_modifier, need_rig, ctx, embed_msg, filtered_items)

    embed_msg.set_footer(text="Enjoy!")
    await ctx.edit(embed=embed_msg, view=None)


# /settings
@bot.slash_command(name="settings", description="Customise your Loadout Lottery experience.")
@commands.cooldown(1, 10, commands.BucketType.user)
@option(name="prapor", description="Enter Prapor's trader level", type=int, choices=[1, 2, 3, 4])
@option(name="therapist", description="Enter Therapist's trader level", type=int, choices=[1, 2, 3, 4])
@option(name="skier", description="Enter Skier's trader level", type=int, choices=[1, 2, 3, 4])
@option(name="peacekeeper", description="Enter Peacekeeper's trader level", type=int, choices=[1, 2, 3, 4])
@option(name="mechanic", description="Enter Mechanic's trader level", type=int, choices=[1, 2, 3, 4])
@option(name="ragman", description="Enter Ragman's trader level", type=int, choices=[1, 2, 3, 4])
@option(name="jaeger", description="Enter Jaeger's trader level", type=int, choices=[0, 1, 2, 3, 4])
@option(name="flea", description="Do you have access to the flea market?", type=bool, choices=[True, False])
@option(name="allow_quest_locked", description="Allow quest locked items to be rolled?", type=bool, choices=[True, False])
@option(name="allow_fir_only", description="Allow non-trader flea-banned items to be rolled?", type=bool, choices=[True, False])
@option(name="meta_only", description="Only allow meta items to be rolled?", type=bool, choices=[True, False])
@option(name="roll_thermals", description="Be able to roll thermal as a random modifier?", type=bool, choices=[True, False])
async def settings(
        ctx: discord.ApplicationContext,
        prapor: int,
        therapist: int,
        skier: int,
        peacekeeper: int,
        mechanic: int,
        ragman: int,
        jaeger: int,
        flea: bool,
        allow_quest_locked: bool,
        allow_fir_only: bool,
        meta_only: bool,
        roll_thermals: bool,
) -> None:
    print_command_timestamp(ctx)

    user_settings = {
        "trader_levels": {
            eft.PRAPOR: prapor,
            eft.THERAPIST: therapist,
            eft.SKIER: skier,
            eft.PEACEKEEPER: peacekeeper,
            eft.MECHANIC: mechanic,
            eft.RAGMAN: ragman,
            eft.JAEGER: jaeger,
        },
        "flea": flea,
        "allow_quest_locked": allow_quest_locked,
        "allow_fir_only": allow_fir_only,
        "meta_only": meta_only,
        "roll_thermals": roll_thermals,
    }

    # Cannot unlock Prapor, Skier, Mechanic, Ragman, or Jaeger LL2 without unlocking Flea market
    ll2: int = 2
    if user_settings["flea"] is False and (
            user_settings["trader_levels"][eft.PRAPOR] >= ll2
            or user_settings["trader_levels"][eft.SKIER] >= ll2
            or user_settings["trader_levels"][eft.MECHANIC] >= ll2
            or user_settings["trader_levels"][eft.RAGMAN] >= ll2
            or user_settings["trader_levels"][eft.JAEGER] >= ll2
    ):
        user_settings["flea"] = True

    initialize_database()
    write_user_settings(ctx.user.id, user_settings)

    embed_msg = show_user_settings(user_settings, ctx)
    embed_msg.title = "Your settings have been updated:"
    await ctx.respond(embed=embed_msg, ephemeral=True)


# /viewsettings
@bot.slash_command(name="viewsettings", description="View your currently saved Loadout Lottery settings.")
@commands.cooldown(1, 10, commands.BucketType.user)
async def viewsettings(ctx: discord.ApplicationContext) -> None:
    print_command_timestamp(ctx)

    try:
        initialize_database()
        user_settings = read_user_settings(ctx.user.id)
    except FileNotFoundError:
        user_settings = DEFAULT_SETTINGS

    embed_msg = show_user_settings(user_settings, ctx)
    embed_msg.title = "Your currently saved settings:"
    await ctx.respond(embed=embed_msg, ephemeral=True)


# /resetsettings
@bot.slash_command(name="resetsettings", description="Reset your currently saved Loadout Lottery settings to default.")
@commands.cooldown(1, 10, commands.BucketType.user)
async def resetsettings(ctx: discord.ApplicationContext) -> None:
    print_command_timestamp(ctx)

    initialize_database()
    write_user_settings(ctx.user.id, DEFAULT_SETTINGS)
    embed_msg = show_user_settings(DEFAULT_SETTINGS, ctx)
    embed_msg.title = "Your settings have been reset to default:"
    await ctx.respond(embed=embed_msg, ephemeral=True)


# /ping
@bot.slash_command(name="ping", description="Check the bot's latency.")
@commands.cooldown(1, 5, commands.BucketType.user)
async def ping(ctx: discord.ApplicationContext) -> None:
    print_command_timestamp(ctx)

    await ctx.respond(f":ping_pong: **Ping:** {round(bot.latency * 100, 2)} ms")


# /stats
@bot.slash_command(name="stats", description="Displays the bot's statistics")
@commands.cooldown(1, 5, commands.BucketType.user)
async def stats(ctx: discord.ApplicationContext) -> None:
    print_command_timestamp(ctx)

    embed_msg = discord.Embed(title=":robot: Bot Statistics")
    embed_msg.set_thumbnail(url="https://i.imgur.com/vCdkZal.png")

    proc = psutil.Process()
    with proc.oneshot():
        uptime = datetime.timedelta(seconds=time.time() - proc.create_time())
        cpu = proc.cpu_times()
        cpu_time = datetime.timedelta(seconds=cpu.system + cpu.user)
        mem_total = psutil.virtual_memory().total / (1024 ** 2)
        mem_of_total = proc.memory_percent()
        mem_usage = mem_total * (mem_of_total / 100)

    fields = [
        ("Python version", platform.python_version(), True),
        ("Pycord version", discord.__version__, True),
        ("Uptime", uptime, True),
        ("CPU time", cpu_time, True),
        ("Memory usage", f"{mem_usage:,.0f} MiB / {mem_total:,.0f} MiB ({mem_of_total:,.0f}%)", True),
        ("Servers", len(bot.guilds), True),
    ]

    for name, value, inline in fields:
        embed_msg.add_field(name=name, value=value, inline=inline)

    await ctx.respond(embed=embed_msg)


@bot.event  # Application command error handler
async def on_application_command_error(ctx: discord.ApplicationContext, error: discord.DiscordException) -> None:
    if isinstance(error, commands.CommandOnCooldown):
        await ctx.respond(
            f":hourglass: **This command is currently on cooldown.** Try again in {round(error.retry_after, 1)}s.",
            ephemeral=True,
        )

    elif isinstance(error, commands.DisabledCommand):
        await ctx.respond(
            f"{ctx.command} has been disabled.",
            ephemeral=True,
        )

    elif isinstance(error, commands.BotMissingPermissions):
        await ctx.respond(
            f":warning: **Bot is missing permissions:** {error.missing_permissions}. ",
            ephemeral=True,
        )

    elif isinstance(error, commands.BotMissingAnyRole):
        await ctx.respond(
            f":warning: **Bot is missing roles:** {error.missing_roles}.",
            ephemeral=True,
        )

    elif isinstance(error, commands.TooManyArguments):
        await ctx.respond(
            f"::warning: **Too many arguments:** {error.args}.",
            ephemeral=True,
        )

    elif isinstance(error, commands.BadArgument):
        await ctx.respond(
            f"::warning: **Invalid argument:** {error.args}.",
            ephemeral=True,
        )

    else:
        raise error


def run_bot() -> None:
    if os.name != "nt":  # Use uvloop if using linux
        import uvloop
        uvloop.install()
    load_dotenv()
    bot.run(os.getenv("TOKEN"))


if __name__ == "__main__":
    run_bot()