Scrobbling to lastfm! w00t

app/controllers/last_fm_controller.rb

@@ -44,26 +44,48 @@ class LastFmController < ApplicationController
   
   def listening
     return unless authorized?
-    return if params[:artist].nil? or params[:track].nil?
+    @res = {}
+    
+    if params[:artist].nil? or params[:track].nil?
+      render :json => {:status => 'bad params'}
+      return
+    end
     
     user = User.find_by_vkid(params[:mid])
-    return unless user.lastfm_key.nil?
+    if user.lastfm_key.nil?
+      render :json => {:status => 'lastfm account is not connected', :user => user}
+      return
+    end
     
     lastfm = Lastfm.new(@@api_key, @@secret)
     lastfm.session = user.lastfm_key
-    lastfm.update_now_playing(params[:artist], params[:track])
+    r = lastfm.track.update_now_playing(params[:artist], params[:track])
+    
+    render :json => {:status => r ? 'success' : 'failed'}
+    return
   end
   
   def scrobble
     return unless authorized?
-    return if params[:artist].nil? or params[:track].nil?
+    @res = {}
+    
+    if params[:artist].nil? or params[:track].nil?
+      render :json => {:status => 'bad params'}
+      return
+    end
     
     user = User.find_by_vkid(params[:mid])
-    return unless user.lastfm_key.nil?
+    if user.lastfm_key.nil?
+      render :json => {:status => 'lastfm account is not connected', :user => user}
+      return
+    end
     
     lastfm = Lastfm.new(@@api_key, @@secret)
     lastfm.session = user.lastfm_key
-    lastfm.scrobble(params[:artist], params[:track])
+    r = lastfm.track.scrobble(params[:artist], params[:track])
+    
+    render :json => {:status => r ? 'success' : 'failed'}
+    return
   end
   
 end

public/javascripts/beathaven/audio.js

@@ -1,7 +1,10 @@
 var Audio = {
 	
 	audio: null,
+	
 	tid: null,
+	tinterval: 300,
+	ttime: 0,
 	
 	play: function() {
 		try {
@@ -36,6 +39,7 @@ var Audio = {
 			$('#player .controls .pause').hide();
 			$('#player .controls .play').show(); 
 		});
+		this.ttime = 0;
 	},
 	
 	getLoadedPercent: function() {
@@ -52,6 +56,16 @@ var Audio = {
 		return 0;
 	},
 	
+	getListenedPercent: function() {
+		try {
+			if (Audio.audio.duration < 30) {
+				return -1;
+			}
+			return Audio.ttime / 1000 / Audio.audio.duration;
+		} catch(e) {}
+		return 0;
+	},
+	
 	setPlayedPercent: function(val) {
 		if (typeof(this.audio.duration) != undefined) {
 			this.audio.currentTime = Math.round(val * this.audio.duration / 100);
@@ -68,10 +82,18 @@ var Audio = {
 	
 	startListener: function() {
 		Audio.killListener();
-		Audio.tid = window.setTimeout(Audio.startListener, 300);
+		Audio.tid = window.setTimeout(Audio.startListener, Audio.tinterval);
+		if (Audio.ttime !== -1) {
+			Audio.ttime += Audio.tinterval;
+		}
+		var pp = Audio.getListenedPercent();
+		if (pp > 0.4) {
+			Audio.ttime = -1;
+		}
 		Player.updateUI(
 			Audio.getLoadedPercent(),
-			Audio.getPlayedPercent()
+			Audio.getPlayedPercent(),
+			pp
 		);
 	},
 	

public/javascripts/beathaven/player.js

@@ -34,6 +34,7 @@ var Player = {
 		$('#player .loaded, #player .played').width(0);
 		
 		loadTracksData(tmp[0], tmp[1], length, Player.playSource);
+		Player.updateNowListening(tmp[0], tmp[1]);
 	},
 	
 	playSource: function(url) {
@@ -66,13 +67,17 @@ var Player = {
 		}
 	},
 	
-	updateUI: function(buffered, played) {
+	updateUI: function(buffered, played, listened) {
 		$('#player .loaded').width(Math.round(buffered * this.bar_width));
 		$('#player .played').width(Math.round(played * this.bar_width));
 		if (played == 1) {
 			Audio.killListener();
 			Player.setTrack(Player.nextTrack());
 		}
+		if (listened > 0.4) {
+			var tmp = $('#player .now-playing').text().split(' — ');
+			Player.scrobble(tmp[0], tmp[1]);
+		}
 	},
 	
 	reset: function() {
@@ -80,6 +85,14 @@ var Player = {
 		Audio.killListener();
 		$('#player .loaded, #player .played').width(0);
 		$('#player .now-playing').text('Select track');
+	},
+	
+	updateNowListening: function(artist, track) {
+		Session.query('/lastfm/listening', {'artist': artist, 'track': track})
+	},
+	
+	scrobble: function(artist, track) {
+		Session.query('/lastfm/scrobble', {'artist': artist, 'track': track})
 	}
 }