Add iTunes source manager

It includes support for internet streams (tested with soma.fm)
and regular songs

diff --git a/Sources/itunes_source.swift b/Sources/itunes_source.swift
new file mode 100644 (file)
index 0000000..449dd8a
--- /dev/null
+++ b/Sources/itunes_source.swift
@@ -0,0 +1,57 @@
+import ScriptingBridge
+
+// Protocol to obtain the track from iTunes
+@objc protocol iTunesTrack {
+    @objc optional var name: String {get}
+    @objc optional var artist: String {get}
+}
+
+// Protocol to interact with iTunes
+@objc protocol iTunesApplication {
+    @objc optional var currentTrack: iTunesTrack? {get}
+    @objc optional var currentStreamTitle: String? {get}
+}
+
+extension SBApplication : iTunesApplication {}
+
+// Source that reads track artist and name from current itunes track
+class ItunesSource: Source {
+
+    // Calls the spotify API and returns the current track
+    var currentTrack: Track? {
+
+        if let iTunes: iTunesApplication = SBApplication(bundleIdentifier: "com.apple.iTunes") {
+
+            // Attempt to fetch the title from a stream
+            if let currentStreamTitle = iTunes.currentStreamTitle {
+                if let track = currentStreamTitle {
+
+                    let trackComponents = track.characters.split(separator: "-").map(String.init)
+
+                    if trackComponents.count == 2 {
+                        let artist = trackComponents[0].trimmingCharacters(in: .whitespaces)
+                        let name = trackComponents[1].trimmingCharacters(in: .whitespaces)
+
+                        return Track(withName: name, andArtist: artist)
+                    }
+
+                }
+            }
+
+            // Attempt to fetch the title from a song
+            if let currentTrack = iTunes.currentTrack {
+                if let track = currentTrack {
+                    if let name = track.name {
+                        if let artist = track.artist {
+
+                            return Track(withName: name, andArtist: artist)
+                        }
+                    }
+                }
+            }
+        }
+
+        return nil
+    }
+
+}