import asyncio
import datetime
import random

import discord
from discord import option
from discord.ext import commands


class RouletteCog(commands.Cog):
    def __init__(self, bot: discord.Bot):
        self.bot = bot
        self.cooldown = 60 * 3
        self.active_games = {}

    def _build_view(self, game: dict) -> discord.ui.View:
        view = discord.ui.View(timeout=None)

        if game["status"] == "pending":
            async def accept_callback(interaction: discord.Interaction):
                if interaction.user.id != game["target"].id:
                    await interaction.response.send_message(
                        "Only the challenged member can accept this duel.",
                        ephemeral=True,
                    )
                    return

                game["status"] = "ready"
                game["current_player"] = game["author"]

                if game.get("message"):
                    await game["message"].edit(
                        content=(
                            f"{game['author'].mention} challenged {game['target'].mention} to a Russian roulette duel.\n"
                            f"✅ {game['target'].mention} accepted. {game['current_player'].mention}, click Fire!"
                        ),
                        view=self._build_view(game),
                    )

                await interaction.response.defer()

            async def decline_callback(interaction: discord.Interaction):
                if interaction.user.id != game["target"].id:
                    await interaction.response.send_message(
                        "Only the challenged member can decline this duel.",
                        ephemeral=True,
                    )
                    return

                game["status"] = "declined"
                self.active_games.pop((game["guild_id"], game["author"].id, game["target"].id), None)

                if game.get("message"):
                    await game["message"].edit(
                        content=f"{game['target'].mention} declined the challenge.",
                        view=None,
                    )

                await interaction.response.defer()

            accept_button = discord.ui.Button(label="Accept", style=discord.ButtonStyle.green)
            accept_button.callback = accept_callback
            view.add_item(accept_button)

            decline_button = discord.ui.Button(label="Decline", style=discord.ButtonStyle.red)
            decline_button.callback = decline_callback
            view.add_item(decline_button)

        elif game["status"] in {"ready", "playing"}:
            async def fire_callback(interaction: discord.Interaction):
                if interaction.user.id != game["current_player"].id:
                    await interaction.response.send_message(
                        f"Wait for {game['current_player'].mention} to fire.",
                        ephemeral=True,
                    )
                    return

                if interaction.user.id in game["fired"]:
                    await interaction.response.send_message(
                        "You already fired once. Only one shot per player is allowed.",
                        ephemeral=True,
                    )
                    return

                game["fired"].add(interaction.user.id)
                is_shot = random.randint(1, 6) == 1

                if is_shot:
                    game["status"] = "finished"
                    self.active_games.pop((game["guild_id"], game["author"].id, game["target"].id), None)

                    await self._mute_member(interaction.user, 60)

                    if game.get("message"):
                        await game["message"].edit(
                            content=(
                                f"💥 {interaction.user.mention} pulled the trigger and got shot.\n"
                                f"They were muted for 60 seconds."
                            ),
                            view=None,
                        )
                else:
                    if len(game["fired"]) >= 2:
                        game["status"] = "finished"
                        self.active_games.pop((game["guild_id"], game["author"].id, game["target"].id), None)

                        if game.get("message"):
                            await game["message"].edit(
                                content=(
                                    f"🔫 {interaction.user.mention} survived and both players have fired once.\n"
                                    f"No one was shot. The duel ends in a draw."
                                ),
                                view=None,
                            )
                    else:
                        game["status"] = "playing"
                        game["current_player"] = game["target"] if interaction.user.id == game["author"].id else game["author"]

                        if game.get("message"):
                            await game["message"].edit(
                                content=(
                                    f"🔫 {interaction.user.mention} survived.\n"
                                    f"Next turn: {game['current_player'].mention}"
                                ),
                                view=self._build_view(game),
                            )

                await interaction.response.defer()

            fire_button = discord.ui.Button(label="Fire", style=discord.ButtonStyle.danger)
            fire_button.callback = fire_callback
            view.add_item(fire_button)

        return view

    async def _mute_member(self, member: discord.Member, seconds: int = 60):
        until = discord.utils.utcnow() + datetime.timedelta(seconds=seconds)
        try:
            await member.timeout(until=until, reason="Russian roulette loss")
        except AttributeError:
            await member.edit(timed_out_until=until, reason="Russian roulette loss")

    @commands.slash_command(
        name="roulette",
        description="Challenge other server members. The loser is getting muted for 1 minute",
    )
    @option(
        name="target",
        description="The member to challenge",
        input_type=discord.Member,
        required=True,
    )
    async def roulette(
        self,
        ctx: discord.ApplicationContext,
        target: discord.Member,
    ):
        author = ctx.author
        self_test = author.id == target.id

        if self_test:
            target = author

        game = {
            "author": author,
            "target": target,
            "status": "pending",
            "current_player": None,
            "guild_id": ctx.guild_id,
            "message": None,
            "fired": set(),
        }

        self.active_games[(ctx.guild_id, author.id, target.id)] = game

        await ctx.send_response(
            f"{author.mention} challenged {target.mention} to a Russian roulette duel.\n"
            f"The target has 60 seconds to accept or decline.",
            view=self._build_view(game),
        )

        if self_test:
            await ctx.send_followup(
                "**Self-challenge enabled for testing.**\n"
                "The game will start immediately and you can test the flow.",
                ephemeral=True,
            )

        try:
            game["message"] = await ctx.interaction.original_response()
        except Exception:
            game["message"] = None

        async def timeout_handler():
            try:
                await asyncio.sleep(60)
            except asyncio.CancelledError:
                return

            if game.get("status") == "pending":
                game["status"] = "timeout"
                self.active_games.pop((ctx.guild_id, author.id, target.id), None)

                await self._mute_member(target, 60)

                if game.get("message"):
                    await game["message"].edit(
                        content=f"⏰ {target.mention} did not respond in time and was muted for 60 seconds.",
                        view=None,
                    )

        asyncio.create_task(timeout_handler())