Implement custom activity text formatting

[hozarho]

Solves #154

Changes

• Add support for new display format for music and movies:

  // [...]
  "music": {
  "display": {
    "details_text": "{track}",
    "state_text": "{artists} {sep} {genres}",
    "image_text": "{album} ({year})"
  },
  "separator": "•"        
  },
  "movies": {
  "display": {
    "details_text": "{title} ({year})",
    "state_text": "{genres} {sep} {critic-score} {sep} {community-score}",
    "image_text": "{title} ({year})"
  },
  "separator": "•"
  },
  // [...]

  Music: Movie:

  Just for fun, another example config, with emojis:

  // [...]
  "music": {
  "display": {
    "details_text": "🎧 {track}",
    "state_text": "👤 {artists} 🎭 {genres}",
    "image_text": "💿 {album} ({year})"
  },
  "separator": "•"        
  },
  "movies": {
  "display": {
    "details_text": "🎬 {title} ({year})",
    "state_text": "🎭 {genres} {critic-score} {community-score}",
    "image_text": "🎬 {title} ({year})"
  },
  "separator": "•"
  },
  // [...]

  Music:

  Movies:

• tested with old configuration:

  "music": {
  "display": ["album", "year", "genres"],
  "separator": "::"
  },
  "movies": {
  "display": "year, genres, critic-score, community-score",
  "separator": "-"
  },

  

• briefly tested TV Episodes and they seem to work as they did before, haven't tested AudioBooks, Books or Live TV

• API change: new struct DisplayFormat

  • replaces Vec<String> as display type in DisplayOptions
  • options of type String or Vec<String> get converted to DisplayOptions for legacy configuration support

• supported formatting items:

  • music:
  • {track} - track title
  • {album} - album title
  • {artists} - album artists, comma-separated
  • {genres} - genres, comma-separated
  • {year} - album release year
  • {version} - Jellyfin-RPC version, used for default image_text
  • {sep} - separator
  • movies:
  • {title} - movie title
  • {genres} - genres, comma-separated
  • {year} - movie release year
  • {critic-score} - RT critic score
  • {community-score} - RT community score
  • {version} - Jellyfin-RPC version, used for default image_text
  • {sep} - separator

• display format texts are sanitized

  • unnecessary whitespaces are removed (e.g. whitespaces in the beginning, end and multiple space characters in a row)
  • duplicated or "dangling" separators are removed - this should take care of situations when some field is empty and separators can be placed one after another

  Example:

  • config: "state_text": "{genres} {sep} {critic-score} {sep} {community-score}"
  • currently played movie has no critic score
  • instead of {genres} {sep} {sep} {community-score} it should return {genres} {sep} {community-score}

[nyouness]

Thank you a lot for this amazing update i love it!