git.r.bdr.sh - rbdr/lyricli/blob - Sources/lyricli/lyricli.swift

   1 // The main class, handles all the actions that the executable will call
   2 class Lyricli {
   3
   4     // Version of the application
   5     static var version = "1.0.0"
   6
   7     // Flag that controls whether we should show the track artist and name before
   8     // the lyrics
   9     static var showTitle = false
  10
  11     // Obtains the name of the current track from a source, fetches the lyrics
  12     // from an engine and prints them
  13     static func printLyrics() {
  14
  15         let sourceManager = SourceManager()
  16
  17         if let currentTrack = sourceManager.currentTrack {
  18             printLyrics(currentTrack)
  19         } else {
  20             print("No Artist/Song could be found :(")
  21         }
  22     }
  23
  24     // fetches the lyrics from an engine and prints them
  25     static func printLyrics(_ currentTrack: Track) {
  26         let engine = LyricsEngine(withTrack: currentTrack)
  27
  28         if showTitle {
  29             printTitle(currentTrack)
  30         }
  31         if let lyrics = engine.lyrics {
  32             print(lyrics)
  33         } else {
  34             print("Lyrics not found :(")
  35         }
  36     }
  37
  38     // Print the currently available sources
  39     static func printSources() {
  40         let sourceManager = SourceManager()
  41         for (sourceName, _) in sourceManager.availableSources {
  42             if (Configuration.shared["enabled_sources"] as? [String] ?? []).contains(sourceName) {
  43                 print("\(sourceName) (enabled)")
  44             } else {
  45                 print(sourceName)
  46             }
  47         }
  48     }
  49
  50     // Runs the enable method of a source and writes the configuration to set it
  51     // as enabled
  52     static func enableSource(_ sourceName: String) throws {
  53         let sourceManager = SourceManager()
  54         if let source = sourceManager.availableSources[sourceName] {
  55             if let enabledSources = Configuration.shared["enabled_sources"] as? [String] {
  56                 if source.enable() == false {
  57                     throw SourceCouldNotBeEnabled()
  58                 }
  59                 if !enabledSources.contains(sourceName) {
  60                     Configuration.shared["enabled_sources"] = enabledSources + [sourceName]
  61                 }
  62                 return
  63             }
  64             throw ConfigurationCouldNotBeRead()
  65         }
  66         throw SourceNotAvailable()
  67     }
  68
  69     // Remove a source from the enabled sources configuration
  70     static func disableSource(_ sourceName: String) throws {
  71         let sourceManager = SourceManager()
  72         if let source = sourceManager.availableSources[sourceName] {
  73             if let enabledSources = Configuration.shared["enabled_sources"] as? [String] {
  74                 if source.disable() == false {
  75                     throw SourceCouldNotBeDisabled()
  76                 }
  77                 Configuration.shared["enabled_sources"] = enabledSources.filter { $0 != sourceName }
  78                 return
  79             }
  80             throw ConfigurationCouldNotBeRead()
  81         }
  82         throw SourceNotAvailable()
  83     }
  84
  85     // Removes any configuration for a source, and disables it
  86     static func resetSource(_ sourceName: String) throws {
  87         let sourceManager = SourceManager()
  88         if let source = sourceManager.availableSources[sourceName] {
  89             if source.reset() == false {
  90                 throw SourceCouldNotBeReset()
  91             }
  92             try disableSource(sourceName)
  93             return
  94         }
  95         throw SourceNotAvailable()
  96     }
  97
  98     // Prints the track artist and name
  99     private static func printTitle(_ track: Track) {
 100         print("\(track.artist) - \(track.name)")
 101     }
 102 }