Vulkan/Music/Player.py

117 lines
3.9 KiB
Python

import asyncio
from discord.ext import commands
from discord import Client, Guild, FFmpegPCMAudio
from discord.ext.commands import Context
from Music.Downloader import Downloader
from Music.Playlist import Playlist
from Music.Song import Song
from Utils.Utils import Timer
class Player(commands.Cog):
def __init__(self, bot: Client, guild: Guild):
self.__down: Downloader = Downloader()
self.__playlist: Playlist = Playlist()
self.__bot: Client = bot
self.__guild: Guild = guild
self.__timer = Timer(self.__timeout_handler)
self.__playing = False
# Flag to control if the player should stop totally the playing
self.__force_stop = False
self.FFMPEG_OPTIONS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
'options': '-vn'}
@property
def playing(self) -> bool:
return self.__playing
@property
def playlist(self) -> Playlist:
return self.__playlist
async def play(self, ctx: Context) -> str:
if not self.__playing:
first_song = self.__playlist.next_song()
await self.__play_music(ctx, first_song)
async def play_prev(self, ctx: Context) -> None:
song = self.__playlist.prev_song()
if song is not None:
if self.__guild.voice_client.is_playing() or self.__guild.voice_client.is_paused():
# Will forbidden next_song to execute after stopping current player
self.__force_stop = True
self.__guild.voice_client.stop()
self.__playing = False
await self.__play_music(ctx, song)
async def force_stop(self) -> None:
try:
if self.__guild.voice_client is None:
return
self.__guild.voice_client.stop()
await self.__guild.voice_client.disconnect()
self.__playlist.clear()
self.__playlist.loop_off()
except Exception as e:
print(f'DEVELOPER NOTE -> Force Stop Error: {e}')
def __play_next(self, error, ctx: Context) -> None:
if self.__force_stop: # If it's forced to stop player
self.__force_stop = False
return None
song = self.__playlist.next_song()
if song is not None:
coro = self.__play_music(ctx, song)
self.__bot.loop.create_task(coro)
else:
self.__playing = False
async def __play_music(self, ctx: Context, song: Song) -> None:
try:
source = await self.__ensure_source(song)
if source is None:
self.__play_next(None, ctx)
self.__playing = True
player = FFmpegPCMAudio(song.source, **self.FFMPEG_OPTIONS)
voice = self.__guild.voice_client
voice.play(player, after=lambda e: self.__play_next(e, ctx))
self.__timer.cancel()
self.__timer = Timer(self.__timeout_handler)
await ctx.invoke(self.__bot.get_command('np'))
songs = self.__playlist.getSongsToPreload()
asyncio.create_task(self.__down.preload(songs))
except:
self.__play_next(None, ctx)
async def __timeout_handler(self) -> None:
if self.__guild.voice_client is None:
return
if self.__guild.voice_client.is_playing() or self.__guild.voice_client.is_paused():
self.__timer = Timer(self.__timeout_handler)
elif self.__guild.voice_client.is_connected():
self.__playlist.clear()
self.__playlist.loop_off()
await self.__guild.voice_client.disconnect()
async def __ensure_source(self, song: Song) -> str:
while True:
await asyncio.sleep(0.1)
if song.source is not None: # If song got downloaded
return song.source
if song.problematic: # If song got any error
return None