[Audio] One PR to rule them all, One PR to find them, One PR to bring them all, and in the darkness bind them (all-in-one pr) (#2904)

* More changes

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* Fixed auto play defaulting to playlist

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* Localtrack fix

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* Updated deps .. since for some reason aiosqlite is not being auto installed for everyone

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* Yupo

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* Fixed a crash in [p]now

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* Fixed crash on playlist save

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* Debugging Commit

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* Yet more prints

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* Even more spammy debug

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* Debugging commit + NEw Dispatches

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* Debugging commit + NEw Dispatches

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* Fixed localpath checks

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* more fixes for Localpaths

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* Spelling mistake on method

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* Fixed Crash on event handler

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* Fixed Crash on local search

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* Reduced fuzzy match percentage threshold for local tracks to account for nested folders

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* Fixed a crash on queue end

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* Sigh ... Removed a duplicate dispatch

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* Sigh i removed this before ...

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* Reorder dispatch signatures so all 3 new dispatch have matching signature

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* Formatting

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* Edited Error Event to support localtracks

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* Fix a Crash on track crash :awesome:

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* Yikes soo much spam

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* Remove spam and improve existance check

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* Repeat and Auto-play are mutually exclusive now

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* DEBUGS for Preda

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* Vimeo tracks can be from both these domains "vimeo.com", "beam.pro"

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* I mean Mixer can be from those 2 domains ....

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* Fixed `search sc` command

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* Run everything though lints.
rename localtracks module to dataclasses
Clear lock on errors

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* Try to speed up long playlist loading

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* Im an idiot

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* Im an idiot

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* Added logging for writes

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* Fix crash on cog reload

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* Fix for runtimewarning ?

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* Fix for Local Track cache

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* Remove broken tracks from queue on exception
Theoretically do not auto play if track stop reason is Stopped or cleanup

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* Previous commit was a fluke ... ignore it

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* Change from cleanup to Replaced

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* Fixed AttributeError: 'Track' object has no attribute 'info'.
[p]skip will only work for autoplay is there a track being played.
Fixed Console spam if query saving failed in the background while reloading bot.
Autoplay now respect [p]stop command

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* Black formatting
Fix Issue with auto play working when there is songs in the queue
Stop notifying queue ended if autoplay is on

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* Fixed a crash on track load timeout

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* [p]playlist start will now show the playlist name in embed body
Improved Logic for handling broken tracks when repeat is on.

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* Enqueue tracks as soon as we have the youtube URL ....

This basically changes how spotify urls are handled

Need to test saving spotify playlist
Need to test loading a spotify playlist from file
Need to test enqueuing a spotify playlist

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* Updated a track whrn enqueuing spotify playlist

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* Debug

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* Debug

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* Debug

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* Debug

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* Debug

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* Debug

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* Debug

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* Debug

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* Debug

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* Debug

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* Revert spotify_enqueue changes

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* Revert spotify_enqueue changes

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* Allow to set Lavalink jar version from Environment vars

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* Allow to set Lavalink jar version from Environment vars

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* Fix for a crash on Equalizer, Merge Spotify_enqueue changes and revert manager changes

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* Break playlist enqueue after 10 consecutive failures

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* Auto DC, is not compatible with Auto Play

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* Make notifier aware of guild its being called for

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* Type checking

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* Remove lock from 2 exits that i didn't before

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* Fixed TypeError: spotify_enqueue() got an unexpected keyword argument 'notify'

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* Reorder toggles to alphabetical order

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* Update Query to handle spotify URIs

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* update database

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* Dont say tracks enqued on invalid link
Make autop lay a mod only setting

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* Dont say tracks enqued on invalid spotify link

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* Set default age to 365 days

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* Allow Audio mods to set auto play playlists.
Save playlists songs to cache when migrating

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* Black formatting

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* [p]eq cooldown is not triggered is player check fails (i.e if nothing is currently playing)
Adding and removing reaction is no longer a blocking action

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* changelog for non blocking reaction handles

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* Show auto dc  and auto play settings by default

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* lint is being a bitch

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* lint changes

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* stop caching local tracks

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* List of Lavalink.Tracks natively added to Playlist Objects

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* Fix UX changes and should fix autoplay

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* Fixed Skip x number of tracks

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* Lint changes

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* Remvoe dead code

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* Update playlist embed formatting to reflect Preda's suggestions

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* Update change logs

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* Add `async with ctx.typing():` to queue and to local folder

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* Stop queuing now when queue is empty with [p]queue

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* fix ctx.typing()

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* fix ctx.typing()

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* Part 1

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* Dont check local track author and name if title is Unknown

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* Makes auto play more random

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* Fixes local play
Fixed missing format

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* Query.process_input accept lavalink.Track objects

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* docstrings

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* Add TODO for timestamp support

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* Improve autoplay from cache logic (possibly slightly slower but more efficient overall)

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* Add My Lavalink PR as a dependency
Remember to remove this .... The PR will bump it to 0.3.2

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* Add My Lavalink PR as a dependency
Remember to remove this .... The PR will bump it to 0.3.2

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* Add My Lavalink PR as a dependency
Remember to remove this .... The PR will bump it to 0.3.2

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* Compile all regex at runtime

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* Fixes local play
Fixed missing format

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* Revert Dep error

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* black

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* Fixed attribute error

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* add `self.bot.dispatch("audio_disconnect", ctx.guild)` dispatch when the player is disconnected

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* Removed shuffle lock on skip

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* Better logic for auto seek (timestamps)

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* Better logic for auto seek (timestamps)

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* Fixes timestamps on spotify tracks

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* Add ctx typing to playlist enqueue

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* Fix Deps

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* Black formatting + Using new lavalink methods for shuffling

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* remove ctx.typing from playlist start

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* Fixes typerror when enqueuing spotify playlists

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* Fix keyerror

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* black formatting, + embed for [p]audioset cache as I forgot it before

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* Fix Error on playlist upload

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* Fix Text help for bump

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* Allow track bumping while shuffle is on

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* Edit bump embed to be consistent with other embed
Hyperlink tracks and removed dynamic title

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* Black

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* Errors not printing fix?

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* Errors not printing fix?

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* Track enqueued footer now shows correct track position when shuffle is on

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* Update changelogs

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* Fix is_owner check in audioset settings

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* Changelogs

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* Dont store searches with no results in cache, fix malformated playlist to cache upon settings migration

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* _clear_lock_on_error > Needs to be reviewed to see if it has been done correctly

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* _clear_lock_on_error > Needs to be reviewed to see if it has been done correctly

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* Fix Query search so that it works with absolute paths for localtracks

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* Extra error if lavalink is set to external and  the query is a localtrack and nothing is found

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* Black

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* More detailed error message

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* [p]seek and [p]skip can be used by user if they are the song requester while DJ mode is enabled, if votes are disabled. , [p]queue shuffle can be used to shuffle the queue manually. and [p]queue clean self can be used to remove all songs you requested from the queue.

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* black

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* All the fixes + a `should_auto_play` dispatch for the tech savy peeps

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* Spellchecker + Pythonic changes

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* NO spam for logs

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* Pass Current voice channel to `red_audio_should_auto_play` dispatch

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* Black

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* playlist upload also updates cache in the background

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* playlist upload also updates cache in the background

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* Add scope to playlist picker

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* Delete Playlist picker message once something is selected

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* OCD Fix

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* Facepalm

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* Fix a Potential crash

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* Update my stupidity

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* Auto Pause +  Skip tracks already in playlist upon playlist append + a command to remove duplicated tracks from playlist

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* Fix DJ mode when Role is deleted - Credits go to Neuro Assassin#4779
Fix an issue where auto play MAY not trigger

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* Change log to  Neuro Assassin#4779 fix

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* Black

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* Dont auto pause manual pauses

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* Adds `[p]autoplay` that can be run by mods or higher

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* 🤦

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* 2x 🤦

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* Fixed wrong import

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* Added Autoplay notify

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* Added Autoplay notify

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* Black

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* Store Track object as prev song instead of URI

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* Black why do u hate me

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* Fix command name

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* Fix Autoplay notify

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* Fix missing await and TypeError, Thanks Flame

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* Add a list of tracks to show as a menu

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* adds the `[p]genre` command which uses the Spotify and Youtube API

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* Enqueue Playlists from genre command

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* Pretify `[p]genre`

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* Fix a Typo and correct jukebox charge order

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* Add genre command to error handling

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* Type checking

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* Update naming scheme for `[p]genre`

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* Black why do you hate me

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* Fixed `[p]local start`
Playlist picker auto selects if theres just 1 playlist found
`[p]queue cleanself` added

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* *sigh* back compatibility with old localtrack paths

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* *sigh* back compatibility with old localtrack paths, even more

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* *sigh* back compatibility with old localtrack paths Even more

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* Fixes localtracks in playlist info command

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* Debug Local Strings

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* Debug Local Strings

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* Fixes `[p]playlist info` for local tracks + fixed error in `[p]remove`

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* Black

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* Fixes formatting in `[p]playlist info`

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* Fix an issue with User Scope playlists were not being deleted

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* Typechecking

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* Black

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* Fix the logic of `delegate_autoplay`

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* Fix a Crash on Load due to type hinting

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* Fix a Crash on Load due to type hintingBlack + fix order of `red_audio_should_auto_play`

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* Add `red_audio_initialized` dispatch so that ownership of auto play can be maintained after a reload

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* Check if the current owner is loaded before raising an error

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* Fixes the Existence Check in `delegate_autoplay`

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* Turns `own_autoplay` in a property of Audio and improves `delegate_autoplay` Thanks Sinbad!

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* Fix for Localtracks playlists

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* When disconnecting send `Disconnecting...`
Fix Stop after a skip
Fix UX discrepancy on Playlist IDs
Fixed Exception when theres a track error

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* add `on_red_audio_unload` dispatch

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* Fix a crash on track start where `player.current` can be none?

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* Missing new line

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* Allow `--author` for playlist to be used to filter playlist for an specific author.
Plus a few bugfixes for UX

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* Rename `remdupe` to `dedupe`
Make global scope always be referenced as Global
add missing backwards quotes around the Playlist ID for 1 string

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* Towncrier entries for dep changes

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* Remove track index when shuffle is on
Fix Progress bar for livestreams

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* Trigger autoplay on `QUEUE_END` event instead of `TRACK_END`

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* Can't reproduce Ians bug but here a safeguard agaisnt it just in case

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* Fixes 2 Messages that had the wrong formatting

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* standerdize playlist naming scheme

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* Fix `[p]autoplay` message when Notify is enabled

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* y u h8 me black

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* Fix an issue with `[p]audioset localpath` where the localtracks folder was incorrect

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* Pythonic formatting

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* Ugh

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* Fix a typo

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* Silently try to delete messages + fixes error Ian found with `[p]genre`

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* sigh black

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* Add humanize_number usage correctly

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* Bump RLL to 0.4.0

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* Update changelog entries

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* Change `bot.db` to new API's added by #2967

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* Additional reformatting

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* Remove PyCharm noise + Fixes a few Pycharm warnings

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* Rework `index` parsing for youtube urls

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* Addess Aika's review

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* Fix a potential crash, saves guild ID to playlists to avoid an scheme change in the future

Signed-off-by: guyre <27962761+drapersniper@users.noreply.github.com>

* Add handling for Python installs without sqlite3.

Signed-off-by: guyre <27962761+drapersniper@users.noreply.github.com>

* Address Flame's review

Signed-off-by: guyre <27962761+drapersniper@users.noreply.github.com>

* Fix ma stupidity

Signed-off-by: guyre <27962761+drapersniper@users.noreply.github.com>

* Address Aika's latest review.

1. Update docstring for `[p]playlist rename`.
2. Fix punctuation for playlist matching.
3. `[p]playlist update` now respect playlist management perms
4. Playlist management errors now shows playlist name, id and scope where possible
5. Remove duplicated code and dead code.

Signed-off-by: guyre <27962761+drapersniper@users.noreply.github.com>

* Pluralize string

Signed-off-by: guyre <27962761+drapersniper@users.noreply.github.com>

changelog.d/audio/270.feature.rst

@@ -0,0 +1 @@
+Added support for nested folders in the localtrack folder.

changelog.d/audio/2861.bugfix.1.rst

@@ -0,0 +1 @@
+``[p]playlist remove`` now removes the playlist url if the playlist was created through ``[p]playlist save``.

changelog.d/audio/2861.bugfix.2.rst

@@ -0,0 +1 @@
+Users are no longer able to accidentally overwrite existing playlist if a new one with the same name is created/rename.

changelog.d/audio/2861.enhance.1.rst

@@ -0,0 +1 @@
+``[p]playlist upload`` will now load playlists generated via ``[p]playlist download`` much faster if the playlist use the new scheme.

changelog.d/audio/2861.enhance.2.rst

@@ -0,0 +1 @@
+``[p]playlist`` commands now can be used by everyone regardless of DJ settings, however it will respect DJ settings when creating/modifying playlist in the server scope.

changelog.d/audio/2861.feature.1.rst

@@ -0,0 +1 @@
+Playlist are now stored in a dataclass and new APIs were added to interact with them see :module:`redbot.cogs.audio.playlist` for more details.

changelog.d/audio/2861.feature.2.rst

@@ -0,0 +1 @@
+All Playlist commands now accept optional arguments, use ``[p]help playlist <subcommand>`` for more details.

changelog.d/audio/2861.feature.3.rst

@@ -0,0 +1 @@
+``[p]playlist rename`` will now allow users to rename existing playlists.

changelog.d/audio/2861.feature.4.rst

@@ -0,0 +1 @@
+``[p]playlist update`` will allow users to update non custom Playlists to the latest available tracks.

changelog.d/audio/2861.feature.5.rst

@@ -0,0 +1,16 @@
+There are 3 different scopes of playlist now, to define them use the ``--scope`` argument.
+
+    ``Global Playlist``
+
+    - These playlists will be available in all servers the bot is in.
+    - These can be managed by the Bot Owner only.
+
+    ``Server Playlist``
+
+    - These playlists will only be available in the server they were created in.
+    - These can be managed by the Bot Owner, Guild Owner, Mods, Admins, DJs and creator (if DJ role is disabled).
+
+    ``User Playlist``
+
+    - These playlists will be available in all servers both the bot and the creator are in.
+    - These can be managed by the Bot Owner and Creator only.

changelog.d/audio/2861.misc.1.rst

@@ -0,0 +1 @@
+:class:`ArgParserFailure` was added to :class:`redbot.core.commands.errors` to allow user friendly errors from ArgParser Converters.

changelog.d/audio/2861.misc.2.rst

@@ -0,0 +1 @@
+Automatic handling of :class:`redbot.core.commands.errors.ArgParserFailure` on :meth:`Cog.on_command_error`.

changelog.d/audio/2861.misc.3.rst

@@ -0,0 +1 @@
+Playlists are now stored in 3 different scopes ``GLOBALPLAYLIST``, ``GUILDPLAYLIST``, ``USERPLAYLIST``.

changelog.d/audio/2861.misc.4.rst

@@ -0,0 +1 @@
+:class:`ScopeParser` is used to parse optional arguments for all playlist commands.

changelog.d/audio/2861.misc.5.rst

@@ -0,0 +1 @@
+:method:`Audio.can_manage_playlist` is now used to check users permissions when managing playlists.

changelog.d/audio/2861.misc.6.rst

@@ -0,0 +1 @@
+:meth:`Audio._migrate_config` will automatically migrate old schema playlist to the new schema.

changelog.d/audio/2890.enhance.1.rst

@@ -0,0 +1 @@
+Spotify, Youtube Data and Lavalink API calls can be cached to avoid repeated calls in the future, see ``[p]audioset cache``.

changelog.d/audio/2890.enhance.2.rst

@@ -0,0 +1 @@
+Playlist will now start playing as soon as first track is loaded.

changelog.d/audio/2890.misc.1.rst

@@ -0,0 +1 @@
+Spotify and Youtube API functions have been moved to :module:`redbot.cogs.audio.api` under :class:`SpotifyAPI` and :class:`YouTubeAPI`.

changelog.d/audio/2890.misc.2.rst

@@ -0,0 +1 @@
+:class:`MusicCache` now handles the Spotify, Youtube Data and Lavalink API calls, this queries the cache first before making API calls.

changelog.d/audio/2890.misc.3.rst

@@ -0,0 +1 @@
+Due to playlist loading order changes users are unable to load tracks while a playlist is currently loading.

changelog.d/audio/2904.bugfix.1.rst

@@ -0,0 +1 @@
+``[p]audioset settings`` no longer shows lavalink JAR version.

changelog.d/audio/2904.bugfix.2.rst

@@ -0,0 +1 @@
+:code:`KeyError: loadType` when trying to play tracks has been fixed.

changelog.d/audio/2904.bugfix.3.rst

@@ -0,0 +1 @@
+``[p]audioset settings`` now uses :code:`ctx.is_owner()` to check if context author is the bot owner.

changelog.d/audio/2904.dep.1.rst

@@ -0,0 +1 @@
+New dependency: ``databases[sqlite]`` .

changelog.d/audio/2904.dep.2.rst

@@ -0,0 +1 @@
+``Red-Lavalink`` bumped to version 0.4.0.

changelog.d/audio/2904.enhance.1.rst

@@ -0,0 +1,2 @@
+``[p]audioset localpath`` can set a path anywhere in your machine now.
+ - Note: This path needs to be visible by :code:`Lavalink.jar`.

changelog.d/audio/2904.enhance.2.rst

@@ -0,0 +1 @@
+``[p]queue`` now works where there are no tracks in the queue (it shows the current track playing).

changelog.d/audio/2904.enhance.3.rst

@@ -0,0 +1 @@
+``[p]audioset settings`` now reports lavalink lib version.

changelog.d/audio/2904.enhance.4.rst

@@ -0,0 +1 @@
+Adding and removing reactions in Audio is no longer a blocking action.

changelog.d/audio/2904.enhance.5.rst

@@ -0,0 +1 @@
+When shuffle is on queue now shows correct play order.

changelog.d/audio/2904.enhance.6.rst

@@ -0,0 +1 @@
+``[p]seek`` and ``[p]skip`` can be used by user if they are the song requester while DJ mode is enabled, if votes are disabled.

changelog.d/audio/2904.enhance.7.rst

@@ -0,0 +1 @@
+Adding a playlist and album to a saved playlist skips tracks already in the playlist.

changelog.d/audio/2904.enhance.8.rst

@@ -0,0 +1 @@
+Turn off DJ mode if the DJ role is deleted.

changelog.d/audio/2904.feature.1.rst

@@ -0,0 +1 @@
+``[p]audioset cache`` can be used to set the cache level. **It's off by default**.

changelog.d/audio/2904.feature.10.rst

@@ -0,0 +1 @@
+``[p]genre`` command can be used to play spotify playlist.

changelog.d/audio/2904.feature.2.rst

@@ -0,0 +1 @@
+``[p]audioset cacheage`` can be used to set maximum age of an entry in the cache. **Default is 365 days**.

changelog.d/audio/2904.feature.3.rst

@@ -0,0 +1 @@
+``[p]audioset autoplay`` can be used to enable auto play once the queue runs out.

changelog.d/audio/2904.feature.4.rst

@@ -0,0 +1,12 @@
+New events dispatched by Audio.
+
+ - :code:`on_red_audio_track_start(guild: discord.Guild, track: lavalink.Track, requester: discord.Member)`
+ - :code:`on_red_audio_track_end(guild: discord.Guild, track: lavalink.Track, requester: discord.Member)`
+ - :code:`on_red_audio_track_enqueue(guild: discord.Guild, track: lavalink.Track, requester: discord.Member)`
+ - :code:`on_red_audio_track_auto_play(guild: discord.Guild, track: lavalink.Track, requester: discord.Member)`
+ - :code:`on_red_audio_queue_end(guild: discord.Guild, track: lavalink.Track, requester: discord.Member)`
+ - :code:`on_red_audio_audio_disconnect(guild: discord.Guild)`
+ - :code:`on_red_audio_should_auto_play(guild: discord.Guild, channel: discord.VoiceChannel, play: Callable)`
+ - :code:`on_red_audio_initialized(audio:Cog)`
+ - :code:`on_red_audio_skip_track(guild: discord.Guild, track: lavalink.Track, requester: discord.Member)`
+ - :code:`on_red_audio_unload(audio:Cog)`

changelog.d/audio/2904.feature.5.rst

@@ -0,0 +1 @@
+``[p]queue shuffle`` can be used to shuffle the queue manually.

changelog.d/audio/2904.feature.6.rst

@@ -0,0 +1 @@
+``[p]queue clean self`` can be used to remove all songs you requested from the queue.

changelog.d/audio/2904.feature.7.rst

@@ -0,0 +1 @@
+``[p]audioset restrictions`` can be used to add or remove keywords which songs must have or are not allowed to have.

changelog.d/audio/2904.feature.8.rst

@@ -0,0 +1 @@
+``[p]playlist dedupe`` can be used to remove duplicated tracks from a playlist.

changelog.d/audio/2904.feature.9.rst

@@ -0,0 +1 @@
+``[p]autoplay`` can be used to play a song.

changelog.d/audio/2904.misc.1.rst

@@ -0,0 +1 @@
+:class:`red.cogs.audio.localpaths.Query` and :class:`red.cogs.audio.localpaths.LocalPath` have been implemented to handle localtracks and queries.

changelog.d/audio/721.feature.rst

@@ -0,0 +1 @@
+Auto pause queue when room is empty.

redbot/cogs/audio/checks.py

@@ -0,0 +1,37 @@
+from redbot.core import Config, commands
+
+from .apis import HAS_SQL
+
+_config = None
+
+
+def _pass_config_to_checks(config: Config):
+    global _config
+    if _config is None:
+        _config = config
+
+
+def roomlocked():
+    """Deny the command if the bot has been room locked."""
+
+    async def predicate(ctx: commands.Context):
+        if ctx.guild is None:
+            return False
+        if await ctx.bot.is_mod(member=ctx.author):
+            return True
+
+        room_id = await _config.guild(ctx.guild).room_lock()
+        if room_id is None or ctx.channel.id == room_id:
+            return True
+        return False
+
+    return commands.check(predicate)
+
+
+def can_have_caching():
+    """Check to disable Caching commands if SQLite is not avaliable."""
+
+    async def predicate(ctx: commands.Context):
+        return HAS_SQL
+
+    return commands.check(predicate)

redbot/cogs/audio/converters.py

@@ -0,0 +1,495 @@
+import argparse
+import functools
+from typing import Optional, Tuple, Union
+
+import discord
+
+from redbot.core import Config, commands
+from redbot.core.bot import Red
+from redbot.core.i18n import Translator
+
+from .playlists import PlaylistScope, standardize_scope
+
+_ = Translator("Audio", __file__)
+
+__all__ = [
+    "ComplexScopeParser",
+    "PlaylistConverter",
+    "ScopeParser",
+    "LazyGreedyConverter",
+    "standardize_scope",
+    "get_lazy_converter",
+    "get_playlist_converter",
+]
+
+_config = None
+_bot = None
+
+_SCOPE_HELP = """
+Scope must be a valid version of one of the following:
+​ ​ ​ ​ Global
+​ ​ ​ ​ Guild
+​ ​ ​ ​ User
+"""
+_USER_HELP = """
+Author must be a valid version of one of the following:
+​ ​ ​ ​ User ID
+​ ​ ​ ​ User Mention
+​ ​ ​ ​ User Name#123 
+"""
+_GUILD_HELP = """
+Guild must be a valid version of one of the following:
+​ ​ ​ ​ Guild ID
+​ ​ ​ ​ Exact guild name 
+"""
+
+
+def _pass_config_to_converters(config: Config, bot: Red):
+    global _config, _bot
+    if _config is None:
+        _config = config
+    if _bot is None:
+        _bot = bot
+
+
+class PlaylistConverter(commands.Converter):
+    async def convert(self, ctx: commands.Context, arg: str) -> dict:
+        global_scope = await _config.custom(PlaylistScope.GLOBAL.value).all()
+        guild_scope = await _config.custom(PlaylistScope.GUILD.value).all()
+        user_scope = await _config.custom(PlaylistScope.USER.value).all()
+        user_matches = [
+            (uid, pid, pdata)
+            for uid, data in user_scope.items()
+            for pid, pdata in data.items()
+            if arg == pid or arg.lower() in pdata.get("name", "").lower()
+        ]
+        guild_matches = [
+            (gid, pid, pdata)
+            for gid, data in guild_scope.items()
+            for pid, pdata in data.items()
+            if arg == pid or arg.lower() in pdata.get("name", "").lower()
+        ]
+        global_matches = [
+            (None, pid, pdata)
+            for pid, pdata in global_scope.items()
+            if arg == pid or arg.lower() in pdata.get("name", "").lower()
+        ]
+        if not user_matches and not guild_matches and not global_matches:
+            raise commands.BadArgument(_("Could not match '{}' to a playlist.").format(arg))
+
+        return {
+            PlaylistScope.GLOBAL.value: global_matches,
+            PlaylistScope.GUILD.value: guild_matches,
+            PlaylistScope.USER.value: user_matches,
+            "arg": arg,
+        }
+
+
+class NoExitParser(argparse.ArgumentParser):
+    def error(self, message):
+        raise commands.BadArgument()
+
+
+class ScopeParser(commands.Converter):
+    async def convert(
+        self, ctx: commands.Context, argument: str
+    ) -> Tuple[str, discord.User, Optional[discord.Guild], bool]:
+        target_scope: str = PlaylistScope.GUILD.value
+        target_user: Optional[Union[discord.Member, discord.User]] = ctx.author
+        target_guild: Optional[discord.Guild] = ctx.guild
+        specified_user = False
+
+        argument = argument.replace("—", "--")
+
+        command, *arguments = argument.split(" -- ")
+        if arguments:
+            argument = " -- ".join(arguments)
+        else:
+            command = None
+
+        parser = NoExitParser(description="Playlist Scope Parsing.", add_help=False)
+
+        parser.add_argument("--scope", nargs="*", dest="scope", default=[])
+        parser.add_argument("--guild", nargs="*", dest="guild", default=[])
+        parser.add_argument("--server", nargs="*", dest="guild", default=[])
+        parser.add_argument("--author", nargs="*", dest="author", default=[])
+        parser.add_argument("--user", nargs="*", dest="author", default=[])
+        parser.add_argument("--member", nargs="*", dest="author", default=[])
+
+        if not command:
+            parser.add_argument("command", nargs="*")
+
+        try:
+            vals = vars(parser.parse_args(argument.split()))
+        except Exception as exc:
+            raise commands.BadArgument() from exc
+
+        if vals["scope"]:
+            scope_raw = " ".join(vals["scope"]).strip()
+            scope = scope_raw.upper().strip()
+            valid_scopes = PlaylistScope.list() + [
+                "GLOBAL",
+                "GUILD",
+                "AUTHOR",
+                "USER",
+                "SERVER",
+                "MEMBER",
+                "BOT",
+            ]
+            if scope not in valid_scopes:
+                raise commands.ArgParserFailure("--scope", scope_raw, custom_help=_SCOPE_HELP)
+            target_scope = standardize_scope(scope)
+        elif "--scope" in argument and not vals["scope"]:
+            raise commands.ArgParserFailure("--scope", "Nothing", custom_help=_SCOPE_HELP)
+
+        is_owner = await ctx.bot.is_owner(ctx.author)
+        guild = vals.get("guild", None) or vals.get("server", None)
+        if is_owner and guild:
+            target_guild = None
+            guild_raw = " ".join(guild).strip()
+            if guild_raw.isnumeric():
+                guild_raw = int(guild_raw)
+                try:
+                    target_guild = ctx.bot.get_guild(guild_raw)
+                except Exception:
+                    target_guild = None
+                guild_raw = str(guild_raw)
+            if target_guild is None:
+                try:
+                    target_guild = await commands.GuildConverter.convert(ctx, guild_raw)
+                except Exception:
+                    target_guild = None
+            if target_guild is None:
+                try:
+                    target_guild = await ctx.bot.fetch_guild(guild_raw)
+                except Exception:
+                    target_guild = None
+            if target_guild is None:
+                raise commands.ArgParserFailure("--guild", guild_raw, custom_help=_GUILD_HELP)
+        elif not is_owner and (guild or any(x in argument for x in ["--guild", "--server"])):
+            raise commands.BadArgument("You cannot use `--guild`")
+        elif any(x in argument for x in ["--guild", "--server"]):
+            raise commands.ArgParserFailure("--guild", "Nothing", custom_help=_GUILD_HELP)
+
+        author = vals.get("author", None) or vals.get("user", None) or vals.get("member", None)
+        if author:
+            target_user = None
+            user_raw = " ".join(author).strip()
+            if user_raw.isnumeric():
+                user_raw = int(user_raw)
+                try:
+                    target_user = ctx.bot.get_user(user_raw)
+                except Exception:
+                    target_user = None
+                user_raw = str(user_raw)
+            if target_user is None:
+                member_converter = commands.MemberConverter()
+                user_converter = commands.UserConverter()
+                try:
+                    target_user = await member_converter.convert(ctx, user_raw)
+                except Exception:
+                    try:
+                        target_user = await user_converter.convert(ctx, user_raw)
+                    except Exception:
+                        target_user = None
+            if target_user is None:
+                try:
+                    target_user = await ctx.bot.fetch_user(user_raw)
+                except Exception:
+                    target_user = None
+            if target_user is None:
+                raise commands.ArgParserFailure("--author", user_raw, custom_help=_USER_HELP)
+            else:
+                specified_user = True
+        elif any(x in argument for x in ["--author", "--user", "--member"]):
+            raise commands.ArgParserFailure("--scope", "Nothing", custom_help=_USER_HELP)
+
+        return target_scope, target_user, target_guild, specified_user
+
+
+class ComplexScopeParser(commands.Converter):
+    async def convert(
+        self, ctx: commands.Context, argument: str
+    ) -> Tuple[
+        str,
+        discord.User,
+        Optional[discord.Guild],
+        bool,
+        str,
+        discord.User,
+        Optional[discord.Guild],
+        bool,
+    ]:
+
+        target_scope: str = PlaylistScope.GUILD.value
+        target_user: Optional[Union[discord.Member, discord.User]] = ctx.author
+        target_guild: Optional[discord.Guild] = ctx.guild
+        specified_target_user = False
+
+        source_scope: str = PlaylistScope.GUILD.value
+        source_user: Optional[Union[discord.Member, discord.User]] = ctx.author
+        source_guild: Optional[discord.Guild] = ctx.guild
+        specified_source_user = False
+
+        argument = argument.replace("—", "--")
+
+        command, *arguments = argument.split(" -- ")
+        if arguments:
+            argument = " -- ".join(arguments)
+        else:
+            command = None
+
+        parser = NoExitParser(description="Playlist Scope Parsing.", add_help=False)
+
+        parser.add_argument("--to-scope", nargs="*", dest="to_scope", default=[])
+        parser.add_argument("--to-guild", nargs="*", dest="to_guild", default=[])
+        parser.add_argument("--to-server", nargs="*", dest="to_server", default=[])
+        parser.add_argument("--to-author", nargs="*", dest="to_author", default=[])
+        parser.add_argument("--to-user", nargs="*", dest="to_user", default=[])
+        parser.add_argument("--to-member", nargs="*", dest="to_member", default=[])
+
+        parser.add_argument("--from-scope", nargs="*", dest="from_scope", default=[])
+        parser.add_argument("--from-guild", nargs="*", dest="from_guild", default=[])
+        parser.add_argument("--from-server", nargs="*", dest="from_server", default=[])
+        parser.add_argument("--from-author", nargs="*", dest="from_author", default=[])
+        parser.add_argument("--from-user", nargs="*", dest="from_user", default=[])
+        parser.add_argument("--from-member", nargs="*", dest="from_member", default=[])
+
+        if not command:
+            parser.add_argument("command", nargs="*")
+
+        try:
+            vals = vars(parser.parse_args(argument.split()))
+        except Exception as exc:
+            raise commands.BadArgument() from exc
+
+        is_owner = await ctx.bot.is_owner(ctx.author)
+        valid_scopes = PlaylistScope.list() + [
+            "GLOBAL",
+            "GUILD",
+            "AUTHOR",
+            "USER",
+            "SERVER",
+            "MEMBER",
+            "BOT",
+        ]
+
+        if vals["to_scope"]:
+            to_scope_raw = " ".join(vals["to_scope"]).strip()
+            to_scope = to_scope_raw.upper().strip()
+            if to_scope not in valid_scopes:
+                raise commands.ArgParserFailure(
+                    "--to-scope", to_scope_raw, custom_help=_SCOPE_HELP
+                )
+            target_scope = standardize_scope(to_scope)
+        elif "--to-scope" in argument and not vals["to_scope"]:
+            raise commands.ArgParserFailure("--to-scope", "Nothing", custom_help=_SCOPE_HELP)
+
+        if vals["from_scope"]:
+            from_scope_raw = " ".join(vals["from_scope"]).strip()
+            from_scope = from_scope_raw.upper().strip()
+
+            if from_scope not in valid_scopes:
+                raise commands.ArgParserFailure(
+                    "--from-scope", from_scope_raw, custom_help=_SCOPE_HELP
+                )
+            source_scope = standardize_scope(from_scope)
+        elif "--from-scope" in argument and not vals["to_scope"]:
+            raise commands.ArgParserFailure("--to-scope", "Nothing", custom_help=_SCOPE_HELP)
+
+        to_guild = vals.get("to_guild", None) or vals.get("to_server", None)
+        if is_owner and to_guild:
+            target_guild = None
+            to_guild_raw = " ".join(to_guild).strip()
+            if to_guild_raw.isnumeric():
+                to_guild_raw = int(to_guild_raw)
+                try:
+                    target_guild = ctx.bot.get_guild(to_guild_raw)
+                except Exception:
+                    target_guild = None
+                to_guild_raw = str(to_guild_raw)
+            if target_guild is None:
+                try:
+                    target_guild = await commands.GuildConverter.convert(ctx, to_guild_raw)
+                except Exception:
+                    target_guild = None
+            if target_guild is None:
+                try:
+                    target_guild = await ctx.bot.fetch_guild(to_guild_raw)
+                except Exception:
+                    target_guild = None
+            if target_guild is None:
+                raise commands.ArgParserFailure(
+                    "--to-guild", to_guild_raw, custom_help=_GUILD_HELP
+                )
+        elif not is_owner and (
+            to_guild or any(x in argument for x in ["--to-guild", "--to-server"])
+        ):
+            raise commands.BadArgument("You cannot use `--to-server`")
+        elif any(x in argument for x in ["--to-guild", "--to-server"]):
+            raise commands.ArgParserFailure("--to-server", "Nothing", custom_help=_GUILD_HELP)
+
+        from_guild = vals.get("from_guild", None) or vals.get("from_server", None)
+        if is_owner and from_guild:
+            source_guild = None
+            from_guild_raw = " ".join(from_guild).strip()
+            if from_guild_raw.isnumeric():
+                from_guild_raw = int(from_guild_raw)
+                try:
+                    source_guild = ctx.bot.get_guild(from_guild_raw)
+                except Exception:
+                    source_guild = None
+                from_guild_raw = str(from_guild_raw)
+            if source_guild is None:
+                try:
+                    source_guild = await commands.GuildConverter.convert(ctx, from_guild_raw)
+                except Exception:
+                    source_guild = None
+            if source_guild is None:
+                try:
+                    source_guild = await ctx.bot.fetch_guild(from_guild_raw)
+                except Exception:
+                    source_guild = None
+            if source_guild is None:
+                raise commands.ArgParserFailure(
+                    "--from-guild", from_guild_raw, custom_help=_GUILD_HELP
+                )
+        elif not is_owner and (
+            from_guild or any(x in argument for x in ["--from-guild", "--from-server"])
+        ):
+            raise commands.BadArgument("You cannot use `--from-server`")
+        elif any(x in argument for x in ["--from-guild", "--from-server"]):
+            raise commands.ArgParserFailure("--from-server", "Nothing", custom_help=_GUILD_HELP)
+
+        to_author = (
+            vals.get("to_author", None) or vals.get("to_user", None) or vals.get("to_member", None)
+        )
+        if to_author:
+            target_user = None
+            to_user_raw = " ".join(to_author).strip()
+            if to_user_raw.isnumeric():
+                to_user_raw = int(to_user_raw)
+                try:
+                    source_user = ctx.bot.get_user(to_user_raw)
+                except Exception:
+                    source_user = None
+                to_user_raw = str(to_user_raw)
+            if target_user is None:
+                member_converter = commands.MemberConverter()
+                user_converter = commands.UserConverter()
+                try:
+                    target_user = await member_converter.convert(ctx, to_user_raw)
+                except Exception:
+                    try:
+                        target_user = await user_converter.convert(ctx, to_user_raw)
+                    except Exception:
+                        target_user = None
+            if target_user is None:
+                try:
+                    target_user = await ctx.bot.fetch_user(to_user_raw)
+                except Exception:
+                    target_user = None
+            if target_user is None:
+                raise commands.ArgParserFailure("--to-author", to_user_raw, custom_help=_USER_HELP)
+            else:
+                specified_target_user = True
+        elif any(x in argument for x in ["--to-author", "--to-user", "--to-member"]):
+            raise commands.ArgParserFailure("--to-user", "Nothing", custom_help=_USER_HELP)
+
+        from_author = (
+            vals.get("from_author", None)
+            or vals.get("from_user", None)
+            or vals.get("from_member", None)
+        )
+        if from_author:
+            source_user = None
+            from_user_raw = " ".join(from_author).strip()
+            if from_user_raw.isnumeric():
+                from_user_raw = int(from_user_raw)
+                try:
+                    target_user = ctx.bot.get_user(from_user_raw)
+                except Exception:
+                    source_user = None
+                from_user_raw = str(from_user_raw)
+            if source_user is None:
+                member_converter = commands.MemberConverter()
+                user_converter = commands.UserConverter()
+                try:
+                    source_user = await member_converter.convert(ctx, from_user_raw)
+                except Exception:
+                    try:
+                        source_user = await user_converter.convert(ctx, from_user_raw)
+                    except Exception:
+                        source_user = None
+            if source_user is None:
+                try:
+                    source_user = await ctx.bot.fetch_user(from_user_raw)
+                except Exception:
+                    source_user = None
+            if source_user is None:
+                raise commands.ArgParserFailure(
+                    "--from-author", from_user_raw, custom_help=_USER_HELP
+                )
+            else:
+                specified_source_user = True
+        elif any(x in argument for x in ["--from-author", "--from-user", "--from-member"]):
+            raise commands.ArgParserFailure("--from-user", "Nothing", custom_help=_USER_HELP)
+
+        return (
+            source_scope,
+            source_user,
+            source_guild,
+            specified_source_user,
+            target_scope,
+            target_user,
+            target_guild,
+            specified_target_user,
+        )
+
+
+class LazyGreedyConverter(commands.Converter):
+    def __init__(self, splitter: str):
+        self.splitter_Value = splitter
+
+    async def convert(self, ctx: commands.Context, argument: str) -> str:
+        full_message = ctx.message.content.partition(f" {argument} ")
+        if len(full_message) == 1:
+            full_message = (
+                (argument if argument not in full_message else "") + " " + full_message[0]
+            )
+        elif len(full_message) > 1:
+            full_message = (
+                (argument if argument not in full_message else "") + " " + full_message[-1]
+            )
+        greedy_output = (" " + full_message.replace("—", "--")).partition(
+            f" {self.splitter_Value}"
+        )[0]
+        return f"{greedy_output}".strip()
+
+
+def get_lazy_converter(splitter: str) -> type:
+    """
+    Returns a typechecking safe `LazyGreedyConverter` suitable for use with discord.py.
+    """
+
+    class PartialMeta(type(LazyGreedyConverter)):
+        __call__ = functools.partialmethod(type(LazyGreedyConverter).__call__, splitter)
+
+    class ValidatedConverter(LazyGreedyConverter, metaclass=PartialMeta):
+        pass
+
+    return ValidatedConverter
+
+
+def get_playlist_converter() -> type:
+    """
+    Returns a typechecking safe `PlaylistConverter` suitable for use with discord.py.
+    """
+
+    class PartialMeta(type(PlaylistConverter)):
+        __call__ = functools.partialmethod(type(PlaylistConverter).__call__)
+
+    class ValidatedConverter(PlaylistConverter, metaclass=PartialMeta):
+        pass
+
+    return ValidatedConverter

redbot/cogs/audio/dataclasses.py

@@ -0,0 +1,486 @@
+import os
+import re
+from pathlib import Path, PosixPath, WindowsPath
+from typing import List, Optional, Union
+from urllib.parse import urlparse
+
+import lavalink
+
+from redbot.core import Config
+from redbot.core.bot import Red
+from redbot.core.i18n import Translator
+
+_config: Optional[Config] = None
+_bot: Optional[Red] = None
+_localtrack_folder: Optional[str] = None
+_ = Translator("Audio", __file__)
+_remove_start = re.compile(r"^(sc|list) ")
+_re_youtube_timestamp = re.compile(r"&t=(\d+)s?")
+_re_youtube_index = re.compile(r"&index=(\d+)")
+_re_spotify_url = re.compile(r"(http[s]?://)?(open.spotify.com)/")
+_re_spotify_timestamp = re.compile(r"#(\d+):(\d+)")
+_re_soundcloud_timestamp = re.compile(r"#t=(\d+):(\d+)s?")
+_re_twitch_timestamp = re.compile(r"\?t=(\d+)h(\d+)m(\d+)s")
+
+
+def _pass_config_to_dataclasses(config: Config, bot: Red, folder: str):
+    global _config, _bot, _localtrack_folder
+    if _config is None:
+        _config = config
+    if _bot is None:
+        _bot = bot
+    _localtrack_folder = folder
+
+
+class ChdirClean(object):
+    def __init__(self, directory):
+        self.old_dir = os.getcwd()
+        self.new_dir = directory
+        self.cwd = None
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, _type, value, traceback):
+        self.chdir_out()
+        return isinstance(value, OSError)
+
+    def chdir_in(self):
+        self.cwd = Path(self.new_dir)
+        os.chdir(self.new_dir)
+
+    def chdir_out(self):
+        self.cwd = Path(self.old_dir)
+        os.chdir(self.old_dir)
+
+
+class LocalPath(ChdirClean):
+    """
+    Local tracks class.
+    Used to handle system dir trees in a cross system manner.
+    The only use of this class is for `localtracks`.
+    """
+
+    _supported_music_ext = (".mp3", ".flac", ".ogg")
+
+    def __init__(self, path, **kwargs):
+        self._path = path
+        if isinstance(path, (Path, WindowsPath, PosixPath, LocalPath)):
+            path = str(path.absolute())
+        elif path is not None:
+            path = str(path)
+
+        self.cwd = Path.cwd()
+        _lt_folder = Path(_localtrack_folder) if _localtrack_folder else self.cwd
+        _path = Path(path) if path else self.cwd
+
+        if _lt_folder.parts[-1].lower() == "localtracks" and not kwargs.get("forced"):
+            self.localtrack_folder = _lt_folder
+        elif kwargs.get("forced"):
+            if _path.parts[-1].lower() == "localtracks":
+                self.localtrack_folder = _path
+            else:
+                self.localtrack_folder = _path / "localtracks"
+        else:
+            self.localtrack_folder = _lt_folder / "localtracks"
+
+        try:
+            _path = Path(path)
+            _path.relative_to(self.localtrack_folder)
+            self.path = _path
+        except (ValueError, TypeError):
+            if path and path.startswith("localtracks//"):
+                path = path.replace("localtracks//", "", 1)
+            elif path and path.startswith("localtracks/"):
+                path = path.replace("localtracks/", "", 1)
+            self.path = self.localtrack_folder.joinpath(path) if path else self.localtrack_folder
+
+        try:
+            if self.path.is_file():
+                parent = self.path.parent
+            else:
+                parent = self.path
+            super().__init__(str(parent.absolute()))
+
+            self.parent = Path(parent)
+        except OSError:
+            self.parent = None
+
+        self.cwd = Path.cwd()
+
+    @property
+    def name(self):
+        return str(self.path.name)
+
+    def is_dir(self):
+        try:
+            return self.path.is_dir()
+        except OSError:
+            return False
+
+    def exists(self):
+        try:
+            return self.path.exists()
+        except OSError:
+            return False
+
+    def is_file(self):
+        try:
+            return self.path.is_file()
+        except OSError:
+            return False
+
+    def absolute(self):
+        try:
+            return self.path.absolute()
+        except OSError:
+            return self._path
+
+    @classmethod
+    def joinpath(cls, *args):
+        modified = cls(None)
+        modified.path = modified.path.joinpath(*args)
+        return modified
+
+    def multiglob(self, *patterns):
+        paths = []
+        for p in patterns:
+            paths.extend(list(self.path.glob(p)))
+        for p in self._filtered(paths):
+            yield p
+
+    def multirglob(self, *patterns):
+        paths = []
+        for p in patterns:
+            paths.extend(list(self.path.rglob(p)))
+
+        for p in self._filtered(paths):
+            yield p
+
+    def _filtered(self, paths: List[Path]):
+        for p in paths:
+            if p.suffix in self._supported_music_ext:
+                yield p
+
+    def __str__(self):
+        return str(self.path.absolute())
+
+    def to_string(self):
+        try:
+            return str(self.path.absolute())
+        except OSError:
+            return str(self._path)
+
+    def to_string_hidden(self, arg: str = None):
+        string = str(self.absolute()).replace(
+            (str(self.localtrack_folder.absolute()) + os.sep) if arg is None else arg, ""
+        )
+        chunked = False
+        while len(string) > 145 and os.sep in string:
+            string = string.split(os.sep, 1)[-1]
+            chunked = True
+
+        if chunked:
+            string = f"...{os.sep}{string}"
+        return string
+
+    def tracks_in_tree(self):
+        tracks = []
+        for track in self.multirglob(*[f"*{ext}" for ext in self._supported_music_ext]):
+            if track.exists() and track.is_file() and track.parent != self.localtrack_folder:
+                tracks.append(Query.process_input(LocalPath(str(track.absolute()))))
+        return tracks
+
+    def subfolders_in_tree(self):
+        files = list(self.multirglob(*[f"*{ext}" for ext in self._supported_music_ext]))
+        folders = []
+        for f in files:
+            if f.exists() and f.parent not in folders and f.parent != self.localtrack_folder:
+                folders.append(f.parent)
+        return_folders = []
+        for folder in folders:
+            if folder.exists() and folder.is_dir():
+                return_folders.append(LocalPath(str(folder.absolute())))
+        return return_folders
+
+    def tracks_in_folder(self):
+        tracks = []
+        for track in self.multiglob(*[f"*{ext}" for ext in self._supported_music_ext]):
+            if track.exists() and track.is_file() and track.parent != self.localtrack_folder:
+                tracks.append(Query.process_input(LocalPath(str(track.absolute()))))
+        return tracks
+
+    def subfolders(self):
+        files = list(self.multiglob(*[f"*{ext}" for ext in self._supported_music_ext]))
+        folders = []
+        for f in files:
+            if f.exists() and f.parent not in folders and f.parent != self.localtrack_folder:
+                folders.append(f.parent)
+        return_folders = []
+        for folder in folders:
+            if folder.exists() and folder.is_dir():
+                return_folders.append(LocalPath(str(folder.absolute())))
+        return return_folders
+
+
+class Query:
+    """
+    Query data class.
+    Use: Query.process_input(query) to generate the Query object.
+    """
+
+    def __init__(self, query: Union[LocalPath, str], **kwargs):
+        query = kwargs.get("queryforced", query)
+        self._raw: Union[LocalPath, str] = query
+
+        _localtrack: LocalPath = LocalPath(query)
+
+        self.track: Union[LocalPath, str] = _localtrack if (
+            (_localtrack.is_file() or _localtrack.is_dir()) and _localtrack.exists()
+        ) else query
+
+        self.valid: bool = query != "InvalidQueryPlaceHolderName"
+        self.is_local: bool = kwargs.get("local", False)
+        self.is_spotify: bool = kwargs.get("spotify", False)
+        self.is_youtube: bool = kwargs.get("youtube", False)
+        self.is_soundcloud: bool = kwargs.get("soundcloud", False)
+        self.is_bandcamp: bool = kwargs.get("bandcamp", False)
+        self.is_vimeo: bool = kwargs.get("vimeo", False)
+        self.is_mixer: bool = kwargs.get("mixer", False)
+        self.is_twitch: bool = kwargs.get("twitch", False)
+        self.is_other: bool = kwargs.get("other", False)
+        self.is_playlist: bool = kwargs.get("playlist", False)
+        self.is_album: bool = kwargs.get("album", False)
+        self.is_search: bool = kwargs.get("search", False)
+        self.is_stream: bool = kwargs.get("stream", False)
+        self.single_track: bool = kwargs.get("single", False)
+        self.id: Optional[str] = kwargs.get("id", None)
+        self.invoked_from: Optional[str] = kwargs.get("invoked_from", None)
+        self.local_name: Optional[str] = kwargs.get("name", None)
+        self.search_subfolders: bool = kwargs.get("search_subfolders", False)
+        self.spotify_uri: Optional[str] = kwargs.get("uri", None)
+
+        self.start_time: int = kwargs.get("start_time", 0)
+        self.track_index: Optional[int] = kwargs.get("track_index", None)
+
+        if self.invoked_from == "sc search":
+            self.is_youtube = False
+            self.is_soundcloud = True
+
+        self.lavalink_query: str = self._get_query()
+
+        if self.is_playlist or self.is_album:
+            self.single_track = False
+
+    def __str__(self):
+        return str(self.lavalink_query)
+
+    @classmethod
+    def process_input(cls, query: Union[LocalPath, lavalink.Track, "Query", str], **kwargs):
+        """
+        A replacement for :code:`lavalink.Player.load_tracks`.
+        This will try to get a valid cached entry first if not found or if in valid
+        it will then call the lavalink API.
+
+        Parameters
+        ----------
+        query : Union[Query, LocalPath, lavalink.Track, str]
+            The query string or LocalPath object.
+        Returns
+        -------
+        Query
+            Returns a parsed Query object.
+        """
+        if not query:
+            query = "InvalidQueryPlaceHolderName"
+        possible_values = dict()
+
+        if isinstance(query, str):
+            query = query.strip("<>")
+
+        elif isinstance(query, Query):
+            for key, val in kwargs.items():
+                setattr(query, key, val)
+            return query
+        elif isinstance(query, lavalink.Track):
+            possible_values["stream"] = query.is_stream
+            query = query.uri
+
+        possible_values.update(dict(**kwargs))
+        possible_values.update(cls._parse(query, **kwargs))
+        return cls(query, **possible_values)
+
+    @staticmethod
+    def _parse(track, **kwargs):
+        returning = {}
+        if (
+            type(track) == type(LocalPath)
+            and (track.is_file() or track.is_dir())
+            and track.exists()
+        ):
+            returning["local"] = True
+            returning["name"] = track.name
+            if track.is_file():
+                returning["single"] = True
+            elif track.is_dir():
+                returning["album"] = True
+        else:
+            track = str(track)
+            if track.startswith("spotify:"):
+                returning["spotify"] = True
+                if ":playlist:" in track:
+                    returning["playlist"] = True
+                elif ":album:" in track:
+                    returning["album"] = True
+                elif ":track:" in track:
+                    returning["single"] = True
+                _id = track.split(":", 2)[-1]
+                _id = _id.split("?")[0]
+                returning["id"] = _id
+                if "#" in _id:
+                    match = re.search(_re_spotify_timestamp, track)
+                    if match:
+                        returning["start_time"] = (int(match.group(1)) * 60) + int(match.group(2))
+                returning["uri"] = track
+                return returning
+            if track.startswith("sc ") or track.startswith("list "):
+                if track.startswith("sc "):
+                    returning["invoked_from"] = "sc search"
+                    returning["soundcloud"] = True
+                elif track.startswith("list "):
+                    returning["invoked_from"] = "search list"
+                track = _remove_start.sub("", track, 1)
+                returning["queryforced"] = track
+
+            _localtrack = LocalPath(track)
+            if _localtrack.exists():
+                if _localtrack.is_file():
+                    returning["local"] = True
+                    returning["single"] = True
+                    returning["name"] = _localtrack.name
+                    return returning
+                elif _localtrack.is_dir():
+                    returning["album"] = True
+                    returning["local"] = True
+                    returning["name"] = _localtrack.name
+                    return returning
+            try:
+                query_url = urlparse(track)
+                if all([query_url.scheme, query_url.netloc, query_url.path]):
+                    url_domain = ".".join(query_url.netloc.split(".")[-2:])
+                    if not query_url.netloc:
+                        url_domain = ".".join(query_url.path.split("/")[0].split(".")[-2:])
+                    if url_domain in ["youtube.com", "youtu.be"]:
+                        returning["youtube"] = True
+                        _has_index = "&index=" in track
+                        if "&t=" in track:
+                            match = re.search(_re_youtube_timestamp, track)
+                            if match:
+                                returning["start_time"] = int(match.group(1))
+                        if _has_index:
+                            match = re.search(_re_youtube_index, track)
+                            if match:
+                                returning["track_index"] = int(match.group(1)) - 1
+
+                        if all(k in track for k in ["&list=", "watch?"]):
+                            returning["track_index"] = 0
+                            returning["playlist"] = True
+                            returning["single"] = False
+                        elif all(x in track for x in ["playlist?"]):
+                            returning["playlist"] = True if not _has_index else False
+                            returning["single"] = True if _has_index else False
+                        else:
+                            returning["single"] = True
+                    elif url_domain == "spotify.com":
+                        returning["spotify"] = True
+                        if "/playlist/" in track:
+                            returning["playlist"] = True
+                        elif "/album/" in track:
+                            returning["album"] = True
+                        elif "/track/" in track:
+                            returning["single"] = True
+                        val = re.sub(_re_spotify_url, "", track).replace("/", ":")
+                        if "user:" in val:
+                            val = val.split(":", 2)[-1]
+                        _id = val.split(":", 1)[-1]
+                        _id = _id.split("?")[0]
+
+                        if "#" in _id:
+                            _id = _id.split("#")[0]
+                            match = re.search(_re_spotify_timestamp, track)
+                            if match:
+                                returning["start_time"] = (int(match.group(1)) * 60) + int(
+                                    match.group(2)
+                                )
+
+                        returning["id"] = _id
+                        returning["uri"] = f"spotify:{val}"
+                    elif url_domain == "soundcloud.com":
+                        returning["soundcloud"] = True
+                        if "#t=" in track:
+                            match = re.search(_re_soundcloud_timestamp, track)
+                            if match:
+                                returning["start_time"] = (int(match.group(1)) * 60) + int(
+                                    match.group(2)
+                                )
+                        if "/sets/" in track:
+                            if "?in=" in track:
+                                returning["single"] = True
+                            else:
+                                returning["playlist"] = True
+                        else:
+                            returning["single"] = True
+                    elif url_domain == "bandcamp.com":
+                        returning["bandcamp"] = True
+                        if "/album/" in track:
+                            returning["album"] = True
+                        else:
+                            returning["single"] = True
+                    elif url_domain == "vimeo.com":
+                        returning["vimeo"] = True
+                    elif url_domain in ["mixer.com", "beam.pro"]:
+                        returning["mixer"] = True
+                    elif url_domain == "twitch.tv":
+                        returning["twitch"] = True
+                        if "?t=" in track:
+                            match = re.search(_re_twitch_timestamp, track)
+                            if match:
+                                returning["start_time"] = (
+                                    (int(match.group(1)) * 60 * 60)
+                                    + (int(match.group(2)) * 60)
+                                    + int(match.group(3))
+                                )
+
+                        if not any(x in track for x in ["/clip/", "/videos/"]):
+                            returning["stream"] = True
+                    else:
+                        returning["other"] = True
+                        returning["single"] = True
+                else:
+                    if kwargs.get("soundcloud", False):
+                        returning["soundcloud"] = True
+                    else:
+                        returning["youtube"] = True
+                    returning["search"] = True
+                    returning["single"] = True
+            except Exception:
+                returning["search"] = True
+                returning["youtube"] = True
+                returning["single"] = True
+        return returning
+
+    def _get_query(self):
+        if self.is_local:
+            return self.track.to_string()
+        elif self.is_spotify:
+            return self.spotify_uri
+        elif self.is_search and self.is_youtube:
+            return f"ytsearch:{self.track}"
+        elif self.is_search and self.is_soundcloud:
+            return f"scsearch:{self.track}"
+        return self.track
+
+    def to_string_user(self):
+        if self.is_local:
+            return str(self.track.to_string_hidden())
+        return str(self._raw)

redbot/cogs/audio/equalizer.py

@@ -5,7 +5,7 @@
 class Equalizer:
     def __init__(self):
         self._band_count = 15
-        self.bands = [0.0 for x in range(self._band_count)]
+        self.bands = [0.0 for _ in range(self._band_count)]
 
     def set_gain(self, band: int, gain: float):
         if band < 0 or band >= self._band_count:
@@ -27,14 +27,11 @@ class Equalizer:
         gains = [1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.0, -0.1, -0.2, -0.25]
 
         for gain in gains:
-            prefix = " "
+            prefix = ""
-
             if gain > 0:
                 prefix = "+"
             elif gain == 0:
                 prefix = " "
-            else:
-                prefix = ""
 
             block += f"{prefix}{gain:.2f} | "
 

redbot/cogs/audio/errors.py

@@ -31,3 +31,67 @@ class LavalinkDownloadFailed(AudioError, RuntimeError):
 
     def _response_repr(self) -> str:
         return f"[{self.response.status} {self.response.reason}]"
+
+
+class PlayListError(AudioError):
+    """Base exception for errors related to playlists."""
+
+
+class InvalidPlaylistScope(PlayListError):
+    """Provided playlist scope is not valid."""
+
+
+class MissingGuild(PlayListError):
+    """Trying to access the Guild scope without a guild."""
+
+
+class MissingAuthor(PlayListError):
+    """Trying to access the User scope without an user id."""
+
+
+class TooManyMatches(PlayListError):
+    """Too many playlist match user input."""
+
+
+class NotAllowed(PlayListError):
+    """Too many playlist match user input."""
+
+
+class ApiError(AudioError):
+    """Base exception for API errors in the Audio cog."""
+
+
+class SpotifyApiError(ApiError):
+    """Base exception for Spotify API errors."""
+
+
+class SpotifyFetchError(SpotifyApiError):
+    """Fetching Spotify data failed."""
+
+    def __init__(self, message, *args):
+        self.message = message
+        super().__init__(*args)
+
+
+class YouTubeApiError(ApiError):
+    """Base exception for YouTube Data API errors."""
+
+
+class DatabaseError(AudioError):
+    """Base exception for database errors in the Audio cog."""
+
+
+class InvalidTableError(DatabaseError):
+    """Provided table to query is not a valid table."""
+
+
+class LocalTrackError(AudioError):
+    """Base exception for local track errors."""
+
+
+class InvalidLocalTrack(LocalTrackError):
+    """Base exception for local track errors."""
+
+
+class InvalidLocalTrackFolder(LocalTrackError):
+    """Base exception for local track errors."""

redbot/cogs/audio/manager.py

@@ -1,14 +1,15 @@
-import itertools
-import pathlib
-import platform
-import shutil
 import asyncio
 import asyncio.subprocess  # disables for # https://github.com/PyCQA/pylint/issues/1469
+import itertools
 import logging
+import pathlib
+import platform
 import re
+import shutil
 import sys
 import tempfile
-from typing import Optional, Tuple, ClassVar, List
+import time
+from typing import ClassVar, List, Optional, Tuple
 
 import aiohttp
 from tqdm import tqdm
@@ -39,7 +40,6 @@ class ServerManager:
     _java_available: ClassVar[Optional[bool]] = None
     _java_version: ClassVar[Optional[Tuple[int, int]]] = None
     _up_to_date: ClassVar[Optional[bool]] = None
-
     _blacklisted_archs = []
 
     def __init__(self) -> None:
@@ -154,12 +154,15 @@ class ServerManager:
 
     async def _wait_for_launcher(self) -> None:
         log.debug("Waiting for Lavalink server to be ready")
+        lastmessage = 0
         for i in itertools.cycle(range(50)):
             line = await self._proc.stdout.readline()
             if READY_LINE_RE.search(line):
                 self.ready.set()
                 break
-            if self._proc.returncode is not None:
+            if self._proc.returncode is not None and lastmessage + 2 < time.time():
+                # Avoid Console spam only print once every 2 seconds
+                lastmessage = time.time()
                 log.critical("Internal lavalink server exited early")
             if i == 49:
                 # Sleep after 50 lines to prevent busylooping

redbot/cogs/audio/playlists.py

@@ -0,0 +1,428 @@
+from collections import namedtuple
+from enum import Enum, unique
+from typing import List, Optional, Union
+
+import discord
+import lavalink
+
+from redbot.core import Config, commands
+from redbot.core.bot import Red
+from redbot.core.i18n import Translator
+from redbot.core.utils.chat_formatting import humanize_list
+from .errors import InvalidPlaylistScope, MissingAuthor, MissingGuild, NotAllowed
+
+_config = None
+_bot = None
+
+__all__ = [
+    "Playlist",
+    "PlaylistScope",
+    "get_playlist",
+    "get_all_playlist",
+    "create_playlist",
+    "reset_playlist",
+    "delete_playlist",
+    "humanize_scope",
+    "standardize_scope",
+    "FakePlaylist",
+]
+
+FakePlaylist = namedtuple("Playlist", "author scope")
+
+_ = Translator("Audio", __file__)
+
+
+@unique
+class PlaylistScope(Enum):
+    GLOBAL = "GLOBALPLAYLIST"
+    GUILD = "GUILDPLAYLIST"
+    USER = "USERPLAYLIST"
+
+    def __str__(self):
+        return "{0}".format(self.value)
+
+    @staticmethod
+    def list():
+        return list(map(lambda c: c.value, PlaylistScope))
+
+
+def _pass_config_to_playlist(config: Config, bot: Red):
+    global _config, _bot
+    if _config is None:
+        _config = config
+    if _bot is None:
+        _bot = bot
+
+
+def standardize_scope(scope) -> str:
+    scope = scope.upper()
+    valid_scopes = ["GLOBAL", "GUILD", "AUTHOR", "USER", "SERVER", "MEMBER", "BOT"]
+
+    if scope in PlaylistScope.list():
+        return scope
+    elif scope not in valid_scopes:
+        raise InvalidPlaylistScope(
+            f'"{scope}" is not a valid playlist scope.'
+            f" Scope needs to be one of the following: {humanize_list(valid_scopes)}"
+        )
+
+    if scope in ["GLOBAL", "BOT"]:
+        scope = PlaylistScope.GLOBAL.value
+    elif scope in ["GUILD", "SERVER"]:
+        scope = PlaylistScope.GUILD.value
+    elif scope in ["USER", "MEMBER", "AUTHOR"]:
+        scope = PlaylistScope.USER.value
+
+    return scope
+
+
+def humanize_scope(scope, ctx=None, the=None):
+
+    if scope == PlaylistScope.GLOBAL.value:
+        return ctx or _("the ") if the else "" + "Global"
+    elif scope == PlaylistScope.GUILD.value:
+        return ctx.name if ctx else _("the ") if the else "" + "Server"
+    elif scope == PlaylistScope.USER.value:
+        return str(ctx) if ctx else _("the ") if the else "" + "User"
+
+
+def _prepare_config_scope(
+    scope, author: Union[discord.abc.User, int] = None, guild: discord.Guild = None
+):
+    scope = standardize_scope(scope)
+
+    if scope == PlaylistScope.GLOBAL.value:
+        config_scope = [PlaylistScope.GLOBAL.value]
+    elif scope == PlaylistScope.USER.value:
+        if author is None:
+            raise MissingAuthor("Invalid author for user scope.")
+        config_scope = [PlaylistScope.USER.value, str(getattr(author, "id", author))]
+    else:
+        if guild is None:
+            raise MissingGuild("Invalid guild for guild scope.")
+        config_scope = [PlaylistScope.GUILD.value, str(getattr(guild, "id", guild))]
+    return config_scope
+
+
+class Playlist:
+    """A single playlist."""
+
+    def __init__(
+        self,
+        bot: Red,
+        scope: str,
+        author: int,
+        playlist_id: int,
+        name: str,
+        playlist_url: Optional[str] = None,
+        tracks: Optional[List[dict]] = None,
+        guild: Union[discord.Guild, int, None] = None,
+    ):
+        self.bot = bot
+        self.guild = guild
+        self.scope = standardize_scope(scope)
+        self.config_scope = _prepare_config_scope(self.scope, author, guild)
+        self.author = author
+        self.guild_id = (
+            getattr(guild, "id", guild) if self.scope == PlaylistScope.GLOBAL.value else None
+        )
+        self.id = playlist_id
+        self.name = name
+        self.url = playlist_url
+        self.tracks = tracks or []
+        self.tracks_obj = [lavalink.Track(data=track) for track in self.tracks]
+
+    async def edit(self, data: dict):
+        """
+        Edits a Playlist.
+        Parameters
+        ----------
+        data: dict
+            The attributes to change.
+        """
+        # Disallow ID editing
+        if "id" in data:
+            raise NotAllowed("Playlist ID cannot be edited.")
+
+        for item in list(data.keys()):
+            setattr(self, item, data[item])
+
+        await _config.custom(*self.config_scope, str(self.id)).set(self.to_json())
+
+    def to_json(self) -> dict:
+        """Transform the object to a dict.
+        Returns
+        -------
+        dict
+            The playlist in the form of a dict.
+        """
+        data = dict(
+            id=self.id,
+            author=self.author,
+            guild=self.guild_id,
+            name=self.name,
+            playlist_url=self.url,
+            tracks=self.tracks,
+        )
+
+        return data
+
+    @classmethod
+    async def from_json(cls, bot: Red, scope: str, playlist_number: int, data: dict, **kwargs):
+        """Get a Playlist object from the provided information.
+        Parameters
+        ----------
+        bot: Red
+            The bot's instance. Needed to get the target user.
+        scope:str
+            The custom config scope. One of 'GLOBALPLAYLIST', 'GUILDPLAYLIST' or 'USERPLAYLIST'.
+        playlist_number: int
+            The playlist's number.
+        data: dict
+            The JSON representation of the playlist to be gotten.
+        **kwargs
+            Extra attributes for the Playlist instance which override values
+            in the data dict. These should be complete objects and not
+            IDs, where possible.
+        Returns
+        -------
+        Playlist
+            The playlist object for the requested playlist.
+        Raises
+        ------
+        `InvalidPlaylistScope`
+            Passing a scope that is not supported.
+        `MissingGuild`
+            Trying to access the Guild scope without a guild.
+        `MissingAuthor`
+            Trying to access the User scope without an user id.
+        """
+        guild = data.get("guild") or kwargs.get("guild")
+        author = data.get("author")
+        playlist_id = data.get("id") or playlist_number
+        name = data.get("name", "Unnamed")
+        playlist_url = data.get("playlist_url", None)
+        tracks = data.get("tracks", [])
+
+        return cls(
+            bot=bot,
+            guild=guild,
+            scope=scope,
+            author=author,
+            playlist_id=playlist_id,
+            name=name,
+            playlist_url=playlist_url,
+            tracks=tracks,
+        )
+
+
+async def get_playlist(
+    playlist_number: int,
+    scope: str,
+    bot: Red,
+    guild: Union[discord.Guild, int] = None,
+    author: Union[discord.abc.User, int] = None,
+) -> Playlist:
+    """
+    Gets the playlist with the associated playlist number.
+    Parameters
+    ----------
+    playlist_number: int
+        The playlist number for the playlist to get.
+    scope: str
+        The custom config scope. One of 'GLOBALPLAYLIST', 'GUILDPLAYLIST' or 'USERPLAYLIST'.
+    guild: discord.Guild
+        The guild to get the playlist from if scope is GUILDPLAYLIST.
+    author: int
+        The ID of the user to get the playlist from if scope is USERPLAYLIST.
+    bot: Red
+        The bot's instance.
+    Returns
+    -------
+    Playlist
+        The playlist associated with the playlist number.
+    Raises
+    ------
+    `RuntimeError`
+        If there is no playlist for the specified number.
+    `InvalidPlaylistScope`
+        Passing a scope that is not supported.
+    `MissingGuild`
+        Trying to access the Guild scope without a guild.
+    `MissingAuthor`
+        Trying to access the User scope without an user id.
+    """
+    playlist_data = await _config.custom(
+        *_prepare_config_scope(scope, author, guild), str(playlist_number)
+    ).all()
+    if not playlist_data["id"]:
+        raise RuntimeError(f"That playlist does not exist for the following scope: {scope}")
+    return await Playlist.from_json(
+        bot, scope, playlist_number, playlist_data, guild=guild, author=author
+    )
+
+
+async def get_all_playlist(
+    scope: str,
+    bot: Red,
+    guild: Union[discord.Guild, int] = None,
+    author: Union[discord.abc.User, int] = None,
+    specified_user: bool = False,
+) -> List[Playlist]:
+    """
+    Gets all playlist for the specified scope.
+    Parameters
+    ----------
+    scope: str
+        The custom config scope. One of 'GLOBALPLAYLIST', 'GUILDPLAYLIST' or 'USERPLAYLIST'.
+    guild: discord.Guild
+        The guild to get the playlist from if scope is GUILDPLAYLIST.
+    author: int
+        The ID of the user to get the playlist from if scope is USERPLAYLIST.
+    bot: Red
+        The bot's instance
+    specified_user:bool
+        Whether or not user ID was passed as an argparse.
+    Returns
+    -------
+    list
+        A list of all playlists for the specified scope
+     Raises
+    ------
+    `InvalidPlaylistScope`
+        Passing a scope that is not supported.
+    `MissingGuild`
+        Trying to access the Guild scope without a guild.
+    `MissingAuthor`
+        Trying to access the User scope without an user id.
+    """
+    playlists = await _config.custom(*_prepare_config_scope(scope, author, guild)).all()
+    if specified_user:
+        user_id = getattr(author, "id", author)
+        return [
+            await Playlist.from_json(
+                bot, scope, playlist_number, playlist_data, guild=guild, author=author
+            )
+            for playlist_number, playlist_data in playlists.items()
+            if user_id == playlist_data.get("author")
+        ]
+    else:
+        return [
+            await Playlist.from_json(
+                bot, scope, playlist_number, playlist_data, guild=guild, author=author
+            )
+            for playlist_number, playlist_data in playlists.items()
+        ]
+
+
+async def create_playlist(
+    ctx: commands.Context,
+    scope: str,
+    playlist_name: str,
+    playlist_url: Optional[str] = None,
+    tracks: Optional[List[dict]] = None,
+    author: Optional[discord.User] = None,
+    guild: Optional[discord.Guild] = None,
+) -> Optional[Playlist]:
+    """
+    Creates a new Playlist.
+
+    Parameters
+    ----------
+    ctx: commands.Context
+        The context in which the play list is being created.
+    scope: str
+        The custom config scope. One of 'GLOBALPLAYLIST', 'GUILDPLAYLIST' or 'USERPLAYLIST'.
+    playlist_name: str
+        The name of the new playlist.
+    playlist_url:str
+        the url of the new playlist.
+    tracks: List[dict]
+        A list of tracks to add to the playlist.
+    author: discord.User
+        The Author of the playlist.
+        If provided it will create a playlist under this user.
+        This is only required when creating a playlist in User scope.
+    guild: discord.Guild
+        The guild to create this playlist under.
+         This is only used when creating a playlist in the Guild scope
+
+    Raises
+    ------
+    `InvalidPlaylistScope`
+        Passing a scope that is not supported.
+    `MissingGuild`
+        Trying to access the Guild scope without a guild.
+    `MissingAuthor`
+        Trying to access the User scope without an user id.
+    """
+
+    playlist = Playlist(
+        ctx.bot, scope, author.id, ctx.message.id, playlist_name, playlist_url, tracks, ctx.guild
+    )
+
+    await _config.custom(*_prepare_config_scope(scope, author, guild), str(ctx.message.id)).set(
+        playlist.to_json()
+    )
+    return playlist
+
+
+async def reset_playlist(
+    scope: str,
+    guild: Union[discord.Guild, int] = None,
+    author: Union[discord.abc.User, int] = None,
+) -> None:
+    """
+    Wipes all playlists for the specified scope.
+
+    Parameters
+    ----------
+    scope: str
+        The custom config scope. One of 'GLOBALPLAYLIST', 'GUILDPLAYLIST' or 'USERPLAYLIST'.
+    guild: discord.Guild
+        The guild to get the playlist from if scope is GUILDPLAYLIST.
+    author: int
+        The ID of the user to get the playlist from if scope is USERPLAYLIST.
+
+     Raises
+    ------
+    `InvalidPlaylistScope`
+        Passing a scope that is not supported.
+    `MissingGuild`
+        Trying to access the Guild scope without a guild.
+    `MissingAuthor`
+        Trying to access the User scope without an user id.
+    """
+    await _config.custom(*_prepare_config_scope(scope, author, guild)).clear()
+
+
+async def delete_playlist(
+    scope: str,
+    playlist_id: Union[str, int],
+    guild: discord.Guild,
+    author: Union[discord.abc.User, int] = None,
+) -> None:
+    """
+        Deletes the specified playlist.
+
+        Parameters
+        ----------
+        scope: str
+            The custom config scope. One of 'GLOBALPLAYLIST', 'GUILDPLAYLIST' or 'USERPLAYLIST'.
+        playlist_id: Union[str, int]
+            The ID of the playlist.
+        guild: discord.Guild
+            The guild to get the playlist from if scope is GUILDPLAYLIST.
+        author: int
+            The ID of the user to get the playlist from if scope is USERPLAYLIST.
+
+         Raises
+        ------
+        `InvalidPlaylistScope`
+            Passing a scope that is not supported.
+        `MissingGuild`
+            Trying to access the Guild scope without a guild.
+        `MissingAuthor`
+            Trying to access the User scope without an user id.
+        """
+    await _config.custom(*_prepare_config_scope(scope, author, guild), str(playlist_id)).clear()

redbot/cogs/audio/utils.py

@@ -0,0 +1,425 @@
+import asyncio
+import contextlib
+import os
+import re
+import time
+from typing import NoReturn
+from urllib.parse import urlparse
+
+import discord
+import lavalink
+
+from redbot.core import Config, commands
+from redbot.core.bot import Red
+from . import dataclasses
+
+from .converters import _pass_config_to_converters
+
+from .playlists import _pass_config_to_playlist
+
+__all__ = [
+    "pass_config_to_dependencies",
+    "track_limit",
+    "queue_duration",
+    "draw_time",
+    "dynamic_time",
+    "match_url",
+    "clear_react",
+    "match_yt_playlist",
+    "remove_react",
+    "get_description",
+    "track_creator",
+    "time_convert",
+    "url_check",
+    "userlimit",
+    "is_allowed",
+    "CacheLevel",
+    "Notifier",
+]
+_re_time_converter = re.compile(r"(?:(\d+):)?([0-5]?[0-9]):([0-5][0-9])")
+re_yt_list_playlist = re.compile(
+    r"^(https?://)?(www\.)?(youtube\.com|youtu\.?be)(/playlist\?).*(list=)(.*)(&|$)"
+)
+
+_config = None
+_bot = None
+
+
+def pass_config_to_dependencies(config: Config, bot: Red, localtracks_folder: str):
+    global _bot, _config
+    _bot = bot
+    _config = config
+    _pass_config_to_playlist(config, bot)
+    _pass_config_to_converters(config, bot)
+    dataclasses._pass_config_to_dataclasses(config, bot, localtracks_folder)
+
+
+def track_limit(track, maxlength):
+    try:
+        length = round(track.length / 1000)
+    except AttributeError:
+        length = round(track / 1000)
+
+    if maxlength < length <= 900000000000000:  # livestreams return 9223372036854775807ms
+        return False
+    return True
+
+
+async def is_allowed(guild: discord.Guild, query: str):
+    query = query.lower().strip()
+    whitelist = set(await _config.guild(guild).url_keyword_whitelist())
+    if whitelist:
+        return any(i in query for i in whitelist)
+    blacklist = set(await _config.guild(guild).url_keyword_blacklist())
+    return not any(i in query for i in blacklist)
+
+
+async def queue_duration(ctx):
+    player = lavalink.get_player(ctx.guild.id)
+    duration = []
+    for i in range(len(player.queue)):
+        if not player.queue[i].is_stream:
+            duration.append(player.queue[i].length)
+    queue_dur = sum(duration)
+    if not player.queue:
+        queue_dur = 0
+    try:
+        if not player.current.is_stream:
+            remain = player.current.length - player.position
+        else:
+            remain = 0
+    except AttributeError:
+        remain = 0
+    queue_total_duration = remain + queue_dur
+    return queue_total_duration
+
+
+async def draw_time(ctx):
+    player = lavalink.get_player(ctx.guild.id)
+    paused = player.paused
+    pos = player.position
+    dur = player.current.length
+    sections = 12
+    loc_time = round((pos / dur) * sections)
+    bar = "\N{BOX DRAWINGS HEAVY HORIZONTAL}"
+    seek = "\N{RADIO BUTTON}"
+    if paused:
+        msg = "\N{DOUBLE VERTICAL BAR}"
+    else:
+        msg = "\N{BLACK RIGHT-POINTING TRIANGLE}"
+    for i in range(sections):
+        if i == loc_time:
+            msg += seek
+        else:
+            msg += bar
+    return msg
+
+
+def dynamic_time(seconds):
+    m, s = divmod(seconds, 60)
+    h, m = divmod(m, 60)
+    d, h = divmod(h, 24)
+
+    if d > 0:
+        msg = "{0}d {1}h"
+    elif d == 0 and h > 0:
+        msg = "{1}h {2}m"
+    elif d == 0 and h == 0 and m > 0:
+        msg = "{2}m {3}s"
+    elif d == 0 and h == 0 and m == 0 and s > 0:
+        msg = "{3}s"
+    else:
+        msg = ""
+    return msg.format(d, h, m, s)
+
+
+def match_url(url):
+    try:
+        query_url = urlparse(url)
+        return all([query_url.scheme, query_url.netloc, query_url.path])
+    except Exception:
+        return False
+
+
+def match_yt_playlist(url):
+    if re_yt_list_playlist.match(url):
+        return True
+    return False
+
+
+async def remove_react(message, react_emoji, react_user):
+    with contextlib.suppress(discord.HTTPException):
+        await message.remove_reaction(react_emoji, react_user)
+
+
+async def clear_react(bot: Red, message: discord.Message, emoji: dict = None):
+    try:
+        await message.clear_reactions()
+    except discord.Forbidden:
+        if not emoji:
+            return
+        with contextlib.suppress(discord.HTTPException):
+            for key in emoji.values():
+                await asyncio.sleep(0.2)
+                await message.remove_reaction(key, bot.user)
+    except discord.HTTPException:
+        return
+
+
+async def get_description(track):
+    if any(x in track.uri for x in [f"{os.sep}localtracks", f"localtracks{os.sep}"]):
+        local_track = dataclasses.LocalPath(track.uri)
+        if track.title != "Unknown title":
+            return "**{} - {}**\n{}".format(
+                track.author, track.title, local_track.to_string_hidden()
+            )
+        else:
+            return local_track.to_string_hidden()
+    else:
+        return "**[{}]({})**".format(track.title, track.uri)
+
+
+def track_creator(player, position=None, other_track=None):
+    if position == "np":
+        queued_track = player.current
+    elif position is None:
+        queued_track = other_track
+    else:
+        queued_track = player.queue[position]
+    track_keys = queued_track._info.keys()
+    track_values = queued_track._info.values()
+    track_id = queued_track.track_identifier
+    track_info = {}
+    for k, v in zip(track_keys, track_values):
+        track_info[k] = v
+    keys = ["track", "info"]
+    values = [track_id, track_info]
+    track_obj = {}
+    for key, value in zip(keys, values):
+        track_obj[key] = value
+    return track_obj
+
+
+def time_convert(length):
+    match = re.compile(_re_time_converter).match(length)
+    if match is not None:
+        hr = int(match.group(1)) if match.group(1) else 0
+        mn = int(match.group(2)) if match.group(2) else 0
+        sec = int(match.group(3)) if match.group(3) else 0
+        pos = sec + (mn * 60) + (hr * 3600)
+        return pos
+    else:
+        try:
+            return int(length)
+        except ValueError:
+            return 0
+
+
+def url_check(url):
+    valid_tld = [
+        "youtube.com",
+        "youtu.be",
+        "soundcloud.com",
+        "bandcamp.com",
+        "vimeo.com",
+        "beam.pro",
+        "mixer.com",
+        "twitch.tv",
+        "spotify.com",
+        "localtracks",
+    ]
+    query_url = urlparse(url)
+    url_domain = ".".join(query_url.netloc.split(".")[-2:])
+    if not query_url.netloc:
+        url_domain = ".".join(query_url.path.split("/")[0].split(".")[-2:])
+    return True if url_domain in valid_tld else False
+
+
+def userlimit(channel):
+    if channel.user_limit == 0 or channel.user_limit > len(channel.members) + 1:
+        return False
+    return True
+
+
+class CacheLevel:
+    __slots__ = ("value",)
+
+    def __init__(self, level=0):
+        if not isinstance(level, int):
+            raise TypeError(
+                f"Expected int parameter, received {level.__class__.__name__} instead."
+            )
+        elif level < 0:
+            level = 0
+        elif level > 0b11111:
+            level = 0b11111
+
+        self.value = level
+
+    def __eq__(self, other):
+        return isinstance(other, CacheLevel) and self.value == other.value
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def __hash__(self):
+        return hash(self.value)
+
+    def __add__(self, other):
+        return CacheLevel(self.value + other.value)
+
+    def __radd__(self, other):
+        return CacheLevel(other.value + self.value)
+
+    def __sub__(self, other):
+        return CacheLevel(self.value - other.value)
+
+    def __rsub__(self, other):
+        return CacheLevel(other.value - self.value)
+
+    def __str__(self):
+        return "{0:b}".format(self.value)
+
+    def __format__(self, format_spec):
+        return "{r:{f}}".format(r=self.value, f=format_spec)
+
+    def __repr__(self):
+        return f"<CacheLevel value={self.value}>"
+
+    def is_subset(self, other):
+        """Returns ``True`` if self has the same or fewer caching levels as other."""
+        return (self.value & other.value) == self.value
+
+    def is_superset(self, other):
+        """Returns ``True`` if self has the same or more caching levels as other."""
+        return (self.value | other.value) == self.value
+
+    def is_strict_subset(self, other):
+        """Returns ``True`` if the caching level on other are a strict subset of those on self."""
+        return self.is_subset(other) and self != other
+
+    def is_strict_superset(self, other):
+        """Returns ``True`` if the caching level on
+        other are a strict superset of those on self."""
+        return self.is_superset(other) and self != other
+
+    __le__ = is_subset
+    __ge__ = is_superset
+    __lt__ = is_strict_subset
+    __gt__ = is_strict_superset
+
+    @classmethod
+    def all(cls):
+        """A factory method that creates a :class:`CacheLevel` with max caching level."""
+        return cls(0b11111)
+
+    @classmethod
+    def none(cls):
+        """A factory method that creates a :class:`CacheLevel` with no caching."""
+        return cls(0)
+
+    @classmethod
+    def set_spotify(cls):
+        """A factory method that creates a :class:`CacheLevel` with Spotify caching level."""
+        return cls(0b00011)
+
+    @classmethod
+    def set_youtube(cls):
+        """A factory method that creates a :class:`CacheLevel` with YouTube caching level."""
+        return cls(0b00100)
+
+    @classmethod
+    def set_lavalink(cls):
+        """A factory method that creates a :class:`CacheLevel` with lavalink caching level."""
+        return cls(0b11000)
+
+    def _bit(self, index):
+        return bool((self.value >> index) & 1)
+
+    def _set(self, index, value):
+        if value is True:
+            self.value |= 1 << index
+        elif value is False:
+            self.value &= ~(1 << index)
+        else:
+            raise TypeError("Value to set for CacheLevel must be a bool.")
+
+    @property
+    def lavalink(self):
+        """:class:`bool`: Returns ``True`` if a user can deafen other users."""
+        return self._bit(4)
+
+    @lavalink.setter
+    def lavalink(self, value):
+        self._set(4, value)
+
+    @property
+    def youtube(self):
+        """:class:`bool`: Returns ``True`` if a user can move users between other voice
+        channels."""
+        return self._bit(2)
+
+    @youtube.setter
+    def youtube(self, value):
+        self._set(2, value)
+
+    @property
+    def spotify(self):
+        """:class:`bool`: Returns ``True`` if a user can use voice activation in voice channels."""
+        return self._bit(1)
+
+    @spotify.setter
+    def spotify(self, value):
+        self._set(1, value)
+
+
+class Notifier:
+    def __init__(self, ctx: commands.Context, message: discord.Message, updates: dict, **kwargs):
+        self.context = ctx
+        self.message = message
+        self.updates = updates
+        self.color = None
+        self.last_msg_time = 0
+        self.cooldown = 5
+
+    async def notify_user(
+        self,
+        current: int = None,
+        total: int = None,
+        key: str = None,
+        seconds_key: str = None,
+        seconds: str = None,
+    ) -> NoReturn:
+        """
+        This updates an existing message.
+        Based on the message found in :variable:`Notifier.updates` as per the `key` param
+        """
+        if self.last_msg_time + self.cooldown > time.time() and not current == total:
+            return
+        if self.color is None:
+            self.color = await self.context.embed_colour()
+        embed2 = discord.Embed(
+            colour=self.color,
+            title=self.updates.get(key).format(num=current, total=total, seconds=seconds),
+        )
+        if seconds and seconds_key:
+            embed2.set_footer(text=self.updates.get(seconds_key).format(seconds=seconds))
+        try:
+            await self.message.edit(embed=embed2)
+            self.last_msg_time = time.time()
+        except discord.errors.NotFound:
+            pass
+
+    async def update_text(self, text: str) -> NoReturn:
+        embed2 = discord.Embed(colour=self.color, title=text)
+        try:
+            await self.message.edit(embed=embed2)
+        except discord.errors.NotFound:
+            pass
+
+    async def update_embed(self, embed: discord.Embed) -> NoReturn:
+        try:
+            await self.message.edit(embed=embed)
+            self.last_msg_time = time.time()
+        except discord.errors.NotFound:
+            pass

redbot/core/commands/errors.py

@@ -3,7 +3,12 @@ import inspect
 import discord
 from discord.ext import commands
 
-__all__ = ["ConversionFailure", "BotMissingPermissions", "UserFeedbackCheckFailure"]
+__all__ = [
+    "ConversionFailure",
+    "BotMissingPermissions",
+    "UserFeedbackCheckFailure",
+    "ArgParserFailure",
+]
 
 
 class ConversionFailure(commands.BadArgument):
@@ -30,3 +35,16 @@ class UserFeedbackCheckFailure(commands.CheckFailure):
     def __init__(self, message=None, *args):
         self.message = message
         super().__init__(message, *args)
+
+
+class ArgParserFailure(UserFeedbackCheckFailure):
+    """Raised when parsing an argument fails."""
+
+    def __init__(
+        self, cmd: str, user_input: str, custom_help: str = None, ctx_send_help: bool = False
+    ):
+        self.cmd = cmd
+        self.user_input = user_input
+        self.send_cmd_help = ctx_send_help
+        self.custom_help_msg = custom_help
+        super().__init__()

redbot/core/events.py

@@ -175,6 +175,13 @@ def init_events(bot, cli_flags):
 
         if isinstance(error, commands.MissingRequiredArgument):
             await ctx.send_help()
+        elif isinstance(error, commands.ArgParserFailure):
+            msg = f"`{error.user_input}` is not a valid value for `{error.cmd}`"
+            if error.custom_help_msg:
+                msg += f"\n{error.custom_help_msg}"
+            await ctx.send(msg)
+            if error.send_cmd_help:
+                await ctx.send_help()
         elif isinstance(error, commands.ConversionFailure):
             if error.args:
                 await ctx.send(error.args[0])

setup.cfg

@@ -28,6 +28,7 @@ python_requires = >=3.7
 install_requires =
     aiohttp==3.5.4
     aiohttp-json-rpc==0.12.1
+    aiosqlite==0.10.0
     appdirs==1.4.3
     async-timeout==3.0.1
     attrs==19.1.0
@@ -36,6 +37,7 @@ install_requires =
     Click==7.0
     colorama==0.4.1
     contextlib2==0.5.5
+    databases[sqlite]==0.2.5
     discord.py==1.2.3
     distro==1.4.0; sys_platform == "linux"
     fuzzywuzzy==0.17.0
@@ -44,7 +46,7 @@ install_requires =
     python-Levenshtein-wheels==0.13.1
     pytz==2019.2
     PyYAML==5.1.2
-    Red-Lavalink==0.3.0
+    Red-Lavalink==0.4.0
     schema==0.7.0
     tqdm==4.35.0
     uvloop==0.13.0; sys_platform != "win32" and platform_python_implementation == "CPython"

tools/primary_deps.ini

@@ -8,10 +8,12 @@
 install_requires =
     aiohttp
     aiohttp-json-rpc
+    aiosqlite
     appdirs
     babel
     click
     colorama
+    databases[sqlite]
     discord.py
     distro; sys_platform == "linux"
     fuzzywuzzy