Update FileTag for multi-field

We are separating an identifier (uuid) from the human-readable label.

jukebox/library/index.js

@@ -22,13 +22,13 @@ class Library extends EventEmitter {
       return;
     }
 
-    this.backend.find(tag, path => {
-      if (!path) {
+    this.backend.find(tag, track => {
+      if (!track) {
         this.emit('action', new tags.NotFoundTag(tag));
         return;
       }
 
-      this.emit('action', new tags.FileTag(tag, path));
+      this.emit('action', new tags.FileTag(tag, track));
     });
   }
 }

jukebox/library/sqlite-backend.js

@@ -1,5 +1,7 @@
 "use strict";
 
+const Track = require('./track');
+
 class SqliteBackend {
   constructor(config, db) {
     this.config = config;
@@ -7,11 +9,11 @@ class SqliteBackend {
   }
 
   find(tag, callback) {
-    this.db.get("SELECT uuid FROM tags WHERE tag = ? AND _ROWID_ >= (abs(random()) % (SELECT max(_ROWID_) FROM tags)) LIMIT 1", tag, (err, row) => {
+    this.db.get("SELECT uuid, tag, label FROM tags WHERE tag = ? AND _ROWID_ >= (abs(random()) % (SELECT max(_ROWID_) FROM tags)) LIMIT 1", tag, (err, row) => {
       if (typeof row === 'undefined') {
         return callback();
       }
-      callback(row['uuid']);
+      callback(new Track(row['tag'], row['uuid'], row['label']));
     });
   }
 }

jukebox/library/tags.js

@@ -29,13 +29,13 @@ class NotFoundTag extends Tag {
 }
 
 class FileTag extends Tag {
-  constructor(tag, path) {
+  constructor(tag, track) {
     super(tag);
-    this.path = path;
+    this.track = track;
   }
 
   toString() {
-    return basename(this.path);
+    return this.track.label;
   }
 }
 

jukebox/library/track.js

@@ -0,0 +1,11 @@
+"use strict";
+
+class Track {
+    constructor(tag, uuid, label) {
+        this.tag = tag;
+        this.uuid = uuid;
+        this.label = label;
+    }
+}
+
+module.exports = Track;

jukebox/media-player.js

@@ -52,7 +52,7 @@ class MediaPlayer extends ChildProcessEmitter {
 
   _playFile(tag) {
     this.emit('command', tag);
-    this.send("LOAD " + tag.path);
+    this.send("LOAD " + tag.track.uuid);
   }
 
   _unknown(tag) {