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tizonia / tizonia-openmax-il

Command-line cloud music player for Linux with support for Spotify, Google Play Music, YouTube, SoundCloud, TuneIn, iHeartRadio, Plex servers and Chromecast devices.
https://tizonia.org
GNU Lesser General Public License v3.0
1.69k stars 87 forks source link

Spotify: Return information without playing, E.g. list of albums/songs by an artist, songs in a playlist, etc. #669

Open nathandraper opened 4 years ago

nathandraper commented 4 years ago

I've been enjoying using this program so far! Being able to just type a single command and play something is extremely convenient. One thing I'd like to implement is the ability to do things like just get a formatted list of albums by an artist. Something like tizonia --spotify-see-discography arg or something. This would be useful when I'm sitting there trying to remember the name of something. Right now it appears that --spotify-artist will print this information, but you can't do it without actually starting playback.

Would this be a feature that we'd like to add? I can work on this.

tizonia commented 4 years ago

Hi @nathandraper !

Thanks for suggesting new features. This is always appreciated.

I think it would be a useful addition, perhaps, it could be an additional command-line switch, that could be applied more generically. This could be useful not only for spotify, but the other services as well.

I'll think in more detail about a possible way to implement this and I will post here the information in case you want to work on this.

tizonia commented 4 years ago

@nathandraper

Sorry for the long wait. I've just remembered that #514 is probably the same feature request.

tizonia commented 4 years ago

@nathandraper

I think it would perhaps be good to have a 'global' option (see https://docs.tizonia.org/manual/global.html) that could be applied in conjunction with any service:

E.g.:

$ tizonia --spotify-artist 'queen' --report-only

This would report the contents of the play queue but without going on to loading the plugin pipeline for playback. I.e. I'm assuming here that adding --report-only to a tizonia command-line would mean the play queue contents are reported on the terminal, and the execution of the program is terminated at that point.

The player command-line argument parsing is done in this class. Adding another 'global' switch is fairly straightforward: https://github.com/tizonia/tizonia-openmax-il/blob/master/player/src/tizprogramopts.hpp

Perhaps the biggest difficulty is finding the location of the various state machines where to put check for the existence of the --report-only flag.

I think this could be a possible location for that check: https://github.com/tizonia/tizonia-openmax-il/blob/dd0e306e1904ff433d740db9f1d92806dc4e49ac/player/src/services/tizservicegraphfsm.hpp#L469

This is the state machine shared by google play music, plex, and soundcloud. The other services have their own individual state machines. So it would be necessary to modify them all.

The modifications to the state machine might not be complicated at all. I'll try to work out an example and post it here.

@nathandraper, feel free to ask any question here. Or use the Gitter chat if you feel like it.