feat: add option to import faders as media players

[Julusian]

Thanks for this project, I have been wondering about making something like this myself but don't know python (or home assistant integrations) well enough to know where to begin. For a few years I have been using a custom tool which bridged the x32 to mqtt and a muddled together way of exposing that as a media-player entity, but it needed some fixing with newer ha then I stumbled upon your project.

One thing I much prefer is having each fader and mute state being exposed as a media-player entity instead of as a number and a switch. This gives it a nicer presentation in the default ha dashboards.

So this PR adds an option during configuration which will set it up to produce a single media_player entity instead of a number and switch for each fader.

Additionally, I have set the step value for the number faders, so that they can be set more granularly from the ha ui.

[wrodie]

By adding the new config parameter, you should probably also take care of that in the async_migrate_entry function in init.py to make sure it is added to all existing users.

[wrodie]

I'm not sure this is the right way to do this.
If you are wanting the faders as media players, then you are probably unlikely to want them also as numbers/switches, your approach here duplicates them.

I think this would better become:
if self.config_entry.data.get("FADER_MEDIA_PLAYERS"):

• media player config
  else
• switch/number config
  IF DB sensors
  ...
  Essentially just moving the existing code to an else of your new 'if'

[Julusian]

I did start with doing that, but changed it because I wanted mute only entities for some things. But maybe I can avoid that by adjusting how the automation works..

My use case here is that I have some ha panels like this:

Each slider is a channel to bus send (some are bus to matrix). The 'master' is toggling the 'main' mute of the bus/matrix. I have some automations reacting to that changing to power on/off speakers which are fed from this bus/matrix.
Now that I think about it, I don't remember if I wanted to mute the bus/matrix of if it was just a convenient abstraction from the physical switch to make it easier to handle that changing

[wrodie]

I suppose the other option, is to change the configuration to be a dropdown something like:

• Expose faders as:
  • Numbers and Switches (Default)
  • Media Players
  • Both Numbers and Switches and Media players (duplication)
    This gives the ability for the user to have either (or both) options.