var mcmAds = (function() {
	
	function buildParamString(media) {
		var genres = [];
		
		var paramString = 'sitename='+getDoubleClickSitename()+'&zone='+mcmAds.zone+'&ord='+Math.floor((Math.random()*13756)*345)+'&keyvalues=mediatype='+media.mediaType+';mediaid='+media.id;
		
		for (var i in media.tags) {
			var tag = media.tags[i];
			if (tag) {
				if(tag.ns == 'music' && tag.predicate == 'genre'){
					genres.push(tag.value);
				}
				else if(tag.ns == 'music' && tag.predicate == 'label'){
					paramString += ';label='+tag.value;
				}
				else if(tag.ns == 'mcm' && tag.predicate == 'artistid'){
					paramString += ';artistid='+tag.value
				}
			}
		}
		
		for (i=0; i<genres.length; i++){
			paramString += ';genrename'+i+'='+genres[i];
		}
		
		return paramString;
	}
	
	function convertToTitleCase(input) {
		return input.substring(0,1).toUpperCase() + input.substring(1);
	}
	
	function getDoubleClickSitename(){
		switch (mcmAds.syn_client) {
			case 'ninemsn':
				sitename = 'ninemsn';
				break;
			default:
				sitename = 'thehothits.com.au';
		}
		return sitename;
	}
	
	return {
		zone: '',
		sitename: '',
		syn_client: '',
		
		updateCompanionAds: function (paramString) {
			
			paramString = 'sitename='+getDoubleClickSitename()+'&zone='+mcmAds.zone+'&ord='+Math.floor((Math.random()*13756)*345)+'&keyvalues='+paramString;
			
			companionAds = [{resource: '/action/mediaplayer/leaderboard?'+paramString, width: 728, height: 90 }, 
			                {resource: '/action/mediaplayer/island?'+paramString, width: 300, height: 250 }];
			
			for (var i in movideoAds.adSlots) {
				var adSlot = movideoAds.adSlots[i];
				if (adSlot) {
					var adElement = document.getElementById(adSlot.id);
					if (adElement) {
						var companionAd = movideoAds.findCompanionAd(companionAds, adSlot.width, adSlot.height);
						if (companionAd) {
							var resourceHandler = movideoAds.adResourceHandlers['iframe'];
							if (resourceHandler) {
								resourceHandler(companionAd, adElement);
							}                                                
						}
					}
					
					if (adSlot.onChanged != null) {
						adSlot.onChanged();
					}
				}
			}
		},
		
		getPlayerAlias: function() {
			var alias;
			
			if(mcmAds.syn_client != '' && mcmAds.syn_app == ''){
				alias = 'syndicated-player';
				mcmAds.zone = alias;
			}
			else if(mcmAds.syn_client != '' && mcmAds.syn_app != ''){
				alias = mcmAds.syn_app;
				mcmAds.zone = alias;
			}
			else{
				switch (mcmAds.zone) {
					case 'home':
						alias = 'homepage';
						break;
					case 'music_library':
						alias = 'music-library';
						break;
					case 'hothitschart':
						alias = 'chart';
						break;
					case 'music_charts':
						alias = 'chart';
						break;
					case 'new_music':
						alias = 'newmusic';
						break;
					case 'playlists':
						alias = 'playlists';
						break;
					case 'pop-out-default':
						alias = 'pop-out-default';
						break;
					case 'pop-out-chart':
						alias = 'pop-out-chart';
						break;
					default:
						alias = 'music-library';
				}	
			}
			return alias; 
		},
		
		playStarted: function(paramString, playerZone){
			mcmAds.zone = playerZone;
			mcmAds.updateCompanionAds(paramString);
		},
		
		getMovideoKey: function() {
			return 'movideo' + convertToTitleCase(mcmAds.syn_client);
		}
	}	
})();