import discord
from discord.ext import commands, tasks
import json
import random
import logging
from typing import Optional, Dict, Any
import asyncio
import os

logger = logging.getLogger(__name__)

class StatusRotator(commands.Cog):
    def __init__(self, bot, *, status_file: str = os.path.join(os.path.dirname(__file__), 'statuses.json')):
        self.bot = bot
        self.statuses: list[Dict[str, Any]] = []
        self.current_index = 0
        self.status_file = status_file

    async def cog_load(self):
        await self.load_statuses()
        asyncio.ensure_future(self._startup())

    async def _startup(self):
        await self.bot.wait_until_ready()
        self.rotate_status.start()

    async def cog_unload(self):
        self.rotate_status.cancel()

    async def load_statuses(self):
        try:
            with open(self.status_file, 'r', encoding='utf-8') as f:
                data = json.load(f)
            
            self.statuses = data.get('statuses', [])
            
            interval = data.get('interval_minutes', 1.0)
            self.rotate_status.change_interval(minutes=interval)
            
            logger.info("Loaded %d statuses with a %.1f minute interval.", len(self.statuses), interval)
        except FileNotFoundError:
            logger.error("Status file not found: %s", self.status_file)
        except json.JSONDecodeError:
            logger.error("Failed to parse JSON in: %s", self.status_file)

    def get_next_status(self) -> Optional[Dict[str, Any]]:
        if not self.statuses:
            return None
        status = self.statuses[self.current_index]
        self.current_index = (self.current_index + 1) % len(self.statuses)
        return status

    def get_random_status(self) -> Optional[Dict[str, Any]]:
        if not self.statuses:
            return None
        return random.choice(self.statuses)

    def create_activity(self, status_data: Dict[str, Any]) -> discord.Activity:
        """Helper to convert JSON data into a discord.Activity object."""
        act_type_str = status_data.get('type', 'playing').lower()
        text = status_data.get('text', 'Unknown Status')

        activity_types = {
            'playing': discord.ActivityType.playing,
            'watching': discord.ActivityType.watching,
            'listening': discord.ActivityType.listening,
            'streaming': discord.ActivityType.streaming,
            'competing': discord.ActivityType.competing,
            'custom': discord.ActivityType.custom
        }
        
        act_type = activity_types.get(act_type_str, discord.ActivityType.playing)

        # streaming requires a url parameter to show up correctly
        if act_type == discord.ActivityType.streaming:
            url = status_data.get('url', 'https://twitch.tv/twitch')
            return discord.Activity(type=act_type, name=text, url=url)

        return discord.Activity(type=act_type, name=text)

    async def update_status(self, status_data: Optional[Dict[str, Any]] = None):
        if not self.statuses:
            logger.warning("No statuses loaded, skipping update")
            return

        if status_data is None:
            status_data = self.get_next_status()

        activity = self.create_activity(status_data)

        try:
            await self.bot.change_presence(activity=activity)
            logger.debug("Status updated to: [%s] %s", activity.type.name, activity.name)
        except Exception as e:
            logger.error("Failed to update status: %s", e)

  
    @tasks.loop(minutes=1.0)
    async def rotate_status(self):
        await self.update_status()

    @rotate_status.before_loop
    async def before_rotate_status(self):
        await self.bot.wait_until_ready()


async def setup(bot):
    await bot.add_cog(StatusRotator(bot))