from typing import Union
from discord import Interaction
from discord.ext.commands import Context
from Music.VulkanBot import VulkanBot
from Handlers.AbstractHandler import AbstractHandler
from Handlers.HandlerResponse import HandlerResponse
from Parallelism.AbstractProcessManager import AbstractPlayersManager
from Parallelism.ProcessInfo import PlayerInfo


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

    async def run(self) -> HandlerResponse:
        # Get the current process of the guild
        processManager: AbstractPlayersManager = self.config.getPlayersManager()
        processInfo = processManager.getRunningPlayerInfo(self.guild)
        if processInfo:
            # Clear the playlist
            playlist = processInfo.getPlaylist()
            processLock = processInfo.getLock()
            acquired = processLock.acquire(timeout=self.config.ACQUIRE_LOCK_TIMEOUT)
            if acquired:
                playlist.clear()
                processLock.release()
                embed = self.embeds.PLAYLIST_CLEAR()
                return HandlerResponse(self.ctx, embed)
            else:
                processManager.resetProcess(self.guild, self.ctx)
                embed = self.embeds.PLAYER_RESTARTED()
                return HandlerResponse(self.ctx, embed)