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This commit is contained in:
José Henrique Ivanchechen
2023-01-30 22:34:55 -03:00
commit 2998d33d33
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import math
import discord
from discord import guild
from discord.ext.commands.errors import CommandError
import youtube_dl
from discord.ext import commands
from utils.models import VoiceState,YTDLSource, YTDLError, Song, VoiceError
# Silence useless bug reports messages
youtube_dl.utils.bug_reports_message = lambda: ''
class Music(commands.Cog):
def __init__(self, bot: commands.Bot):
self.bot = bot
self.voice_states = {}
def get_voice_state(self, ctx: commands.Context):
state = VoiceState(self.bot, ctx)
voice_client = discord.utils.get(self.bot.voice_clients, guild=ctx.guild)
if voice_client is not None:
state.voice = voice_client
self.voice_states[ctx.guild.id] = state
return state
def cog_unload(self):
for state in self.voice_states.values():
self.bot.loop.create_task(state.stop())
def cog_check(self, ctx: commands.Context):
if not ctx.guild:
raise commands.NoPrivateMessage('This command can\'t be used in DM channels.')
return True
async def cog_before_invoke(self, ctx: commands.Context):
ctx.voice_state = self.get_voice_state(ctx)
async def cog_command_error(self, ctx: commands.Context, error: commands.CommandError):
# await ctx.send('An error occurred: {}'.format(str(error)))
pass
@commands.command(name='join', invoke_without_subcommand=True)
async def _join(self, ctx: commands.Context):
"""Joins a voice channel."""
destination = ctx.author.voice.channel
if ctx.voice_state.voice:
await ctx.voice_state.voice.move_to(destination)
return
voice_client = discord.utils.get(self.bot.voice_clients, guild=ctx.guild)
if voice_client == None:
ctx.voice_state.voice = await destination.connect()
else:
ctx.voice_state.voice = voice_client
@commands.command(name='summon')
async def _summon(self, ctx: commands.Context, *, channel: discord.VoiceChannel = None):
"""Summons the bot to a voice channel.
If no channel was specified, it joins your channel.
"""
if not channel and not ctx.author.voice:
raise VoiceError('You are neither connected to a voice channel nor specified a channel to join.')
destination = channel or ctx.author.voice.channel
if ctx.voice_state.voice:
await ctx.voice_state.voice.move_to(destination)
return
ctx.voice_state.voice = await destination.connect()
@commands.command(name='leave', aliases=['disconnect', 'q', 'dc'])
async def _leave(self, ctx: commands.Context):
"""Clears the queue and leaves the voice channel."""
if not ctx.voice_state.voice:
return await ctx.send('Not connected to any voice channel.')
await ctx.voice_state.stop()
del self.voice_states[ctx.guild.id]
@commands.command(name='volume')
async def _volume(self, ctx: commands.Context, *, volume: int):
"""Sets the volume of the player."""
if not ctx.voice_state.is_playing:
return await ctx.send('Nothing being played at the moment.')
if 0 > volume > 100:
return await ctx.send('Volume must be between 0 and 100')
ctx.voice_state.volume = volume / 100
await ctx.send('Volume of the player set to {}%'.format(volume))
@commands.command(name='now', aliases=['current', 'playing'])
async def _now(self, ctx: commands.Context):
"""Displays the currently playing song."""
await ctx.send(embed=ctx.voice_state.current.create_embed())
@commands.command(name='pause')
async def _pause(self, ctx: commands.Context):
"""Pauses the currently playing song."""
if ctx.voice_state.is_playing and ctx.voice_state.voice.is_playing():
ctx.voice_state.voice.pause()
await ctx.message.add_reaction('⏯')
@commands.command(name='resume', aliases=['r'])
async def _resume(self, ctx: commands.Context):
"""Resumes a currently paused song."""
if ctx.voice_state.is_playing and ctx.voice_state.voice.is_paused():
ctx.voice_state.voice.resume()
await ctx.message.add_reaction('⏯')
@commands.command(name='stop')
async def _stop(self, ctx: commands.Context):
"""Stops playing song and clears the queue."""
ctx.voice_state.songs.clear()
if ctx.voice_state.is_playing:
ctx.voice_state.voice.stop()
await ctx.message.add_reaction('⏹')
@commands.command(name='skip', aliases=['s', 'next', 'n'])
async def _skip(self, ctx: commands.Context):
"""Vote to skip a song. The requester can automatically skip."""
if not ctx.voice_state.is_playing:
return await ctx.send('Not playing any music right now...')
await ctx.message.add_reaction('⏭')
ctx.voice_state.skip()
@commands.command(name='queue')
async def _queue(self, ctx: commands.Context, *, page: int = 1):
"""Shows the player's queue.
You can optionally specify the page to show. Each page contains 10 elements.
"""
if len(ctx.voice_state.songs) == 0:
return await ctx.send('Empty queue.')
items_per_page = 10
pages = math.ceil(len(ctx.voice_state.songs) / items_per_page)
start = (page - 1) * items_per_page
end = start + items_per_page
queue = ''
for i, song in enumerate(ctx.voice_state.songs[start:end], start=start):
queue += '`{0}.` [**{1.source.title}**]({1.source.url})\n'.format(i + 1, song)
embed = (discord.Embed(description='**{} tracks:**\n\n{}'.format(len(ctx.voice_state.songs), queue))
.set_footer(text='Viewing page {}/{}'.format(page, pages)))
await ctx.send(embed=embed)
@commands.command(name='shuffle', aliases=['sf'])
async def _shuffle(self, ctx: commands.Context):
"""Shuffles the queue."""
if len(ctx.voice_state.songs) == 0:
return await ctx.send('Empty queue.')
ctx.voice_state.songs.shuffle()
await ctx.message.add_reaction('✅')
@commands.command(name='remove')
async def _remove(self, ctx: commands.Context, index: int):
"""Removes a song from the queue at a given index."""
if len(ctx.voice_state.songs) == 0:
return await ctx.send('Empty queue.')
ctx.voice_state.songs.remove(index - 1)
await ctx.message.add_reaction('✅')
@commands.command(name='loop', aliases=['l'])
async def _loop(self, ctx: commands.Context):
"""Loops the currently playing song.
Invoke this command again to unloop the song.
"""
if not ctx.voice_state.is_playing:
return await ctx.send('Nothing being played at the moment.')
# Inverse boolean value to loop and unloop.
ctx.voice_state.loop = not ctx.voice_state.loop
await ctx.message.add_reaction('✅')
@commands.command(name='play', aliases=['p'])
async def _play(self, ctx: commands.Context, *, search: str):
"""Plays a song.
If there are songs in the queue, this will be queued until the
other songs finished playing.
This command automatically searches from various sites if no URL is provided.
A list of these sites can be found here: https://rg3.github.io/youtube-dl/supportedsites.html
"""
quiet_flag = False
flags = ['-q']
for flag in flags:
if ' ' + flag in search:
search = search.replace(' ' + flag, '')
if flag == '-q':
quiet_flag = True
if not ctx.voice_state.voice:
await ctx.invoke(self._join)
async with ctx.typing():
try:
source = await YTDLSource.create_source(ctx, search, loop=self.bot.loop, quiet=quiet_flag)
except YTDLError as e:
await ctx.send('An error occurred while processing this request: {}'.format(str(e)))
else:
song = Song(source)
await ctx.voice_state.songs.put(song)
if not quiet_flag:
await ctx.send('Enqueued {}'.format(str(source)))
else:
await ctx.message.delete()
@_join.before_invoke
@_play.before_invoke
async def ensure_voice_state(self, ctx: commands.Context):
if not ctx.author.voice or not ctx.author.voice.channel:
raise commands.CommandError('You are not connected to any voice channel.')
if ctx.voice_client and ctx.voice_client.channel != ctx.author.voice.channel:
raise commands.CommandError('Bot is already in a voice channel.')