from discord.ext.commands import Context
from Handlers.AbstractHandler import AbstractHandler
from Handlers.HandlerResponse import HandlerResponse
from Config.Exceptions import UnknownError
from Parallelism.ProcessManager import ProcessManager
from Music.VulkanBot import VulkanBot
from typing import Union
from discord import Interaction


class ShuffleHandler(AbstractHandler):
    def __init__(self, ctx: Union[Context, Interaction], bot: VulkanBot) -> None:
        super().__init__(ctx, bot)

    async def run(self) -> HandlerResponse:
        processManager = ProcessManager()
        processInfo = processManager.getRunningPlayerInfo(self.guild)
        if processInfo:
            try:
                processLock = processInfo.getLock()
                acquired = processLock.acquire(timeout=self.config.ACQUIRE_LOCK_TIMEOUT)
                if acquired:
                    playlist = processInfo.getPlaylist()
                    playlist.shuffle()
                    # Release the acquired Lock
                    processLock.release()
                else:
                    processManager.resetProcess(self.guild, self.ctx)
                    embed = self.embeds.PLAYER_RESTARTED()
                    return HandlerResponse(self.ctx, embed)

                embed = self.embeds.SONGS_SHUFFLED()
                return HandlerResponse(self.ctx, embed)

            except Exception as e:
                print(f'DEVELOPER NOTE -> Error Shuffling: {e}')
                error = UnknownError()
                embed = self.embeds.ERROR_SHUFFLING()

                return HandlerResponse(self.ctx, embed, error)
        else:
            embed = self.embeds.NOT_PLAYING()
            return HandlerResponse(self.ctx, embed)