// --------------------------------------------------------------------------------------
// TOOLS.JS - Collezione di funzioni JavaScript di utilita'
// Lucio Travagnin (lucio.travagnin@guest.matrix.it)
// --------------------------------------------------------------------------------------

// Patch per IE - Crea la funzione vuota console.log() se non esiste
if (window.console == undefined) { window.console = {log:function(){}}; }

// Alcune variabili globali
var videoBaseUrl      = '/show.php';


var imageServer = 'http://images.alice.it';


// ----------------------------------------------------------------------------
// encodeArtistItem ()
// ----------------------------------------------------------------------------
function encodeArtistItem (item) {
	var encodedItem;

	encodedItem = item.toLowerCase();

	return encodedItem;
}


// ----------------------------------------------------------------------------
// getParameter ()
// Recupera un parametro dalla Query String
// ----------------------------------------------------------------------------
function getParameter (url,parameterName) {
	var url,pos,parameterValue,i,index;

	pos = url.indexOf('#');
	if (pos!=-1) {
		url = url.substring(0,pos);
	}

	pos = url.indexOf('?');
	if (pos==-1) {
		return null;
	}

	queryString = url.substring(pos+1);
	parameters = queryString.split(/&(?!amp;)/);

	for (i=0; i<parameters.length; i++) {
		index = parameters[i].indexOf('=');
		name = parameters[i].substring(0,index);
		if (name==parameterName) {
			parameterValue = parameters[i].substring(index+1);
			return unescape(parameterValue);
		}
	}

	return null;
}

	function addParameter (url,parameterName,parameterValue) {
		var anchorValue, found;

		pos = url.indexOf('#');
		if (pos==-1) {
			anchorValue = '';
		} else {
			anchorValue = url.substring(pos);
			url = url.substring(0,pos);
		}

		pos = url.indexOf('?');
		if (pos==-1) {
			url = url+'?'+parameterName+'='+parameterValue;
		} else {
			queryString = url.substring(pos+1);
			url = url.substring(0,pos);
			parameters = queryString.split(/&(?!amp;)/);
			found = false;
			for (i=0; i<parameters.length; i++) {
				name = parameters[i].substring(0,parameters[i].indexOf('='));
				if (name==parameterName) {
					parameters[i] = parameterName+"="+escape(parameterValue);
					found = true;
					break;
				}
			}
			if (!found) {
				parameters.push(parameterName+"="+escape(parameterValue));
			}
			queryString = '';
			for (i=0; i<parameters.length; i++) {
				queryString += '&'+parameters[i];
			}
			queryString = queryString.substring(1);
			url = url+'?'+queryString;
		}

		url = url+anchorValue;
		return url;
	}

	function removeParameter(url,parameterName) {

		pos = url.indexOf('#');
		if (pos==-1) {
			anchorValue = '';
		} else {
			anchorValue = url.substring(pos);
			url = url.substring(0,pos);
		}

		pos = url.indexOf('?');
		if (pos!=-1) {
			queryString = url.substring(pos+1);
			url = url.substring(0,pos);
			parameters = queryString.split(/&(?!amp;)/);
			for (i=0; i<parameters.length; i++) {
				name = parameters[i].substring(0,parameters[i].indexOf('='));
				if (name==parameterName) {
					parameters[i] = null;
					break;
				}
			}
			queryString = '';
			for (i=0; i<parameters.length; i++) {
				if (parameters[i]!=null) {
					queryString += '&'+parameters[i];
				}
			}
			queryString = queryString.substring(1);
			if (queryString!='') {
				url = url+'?'+queryString;
			}
		}

		url = url+anchorValue;
		return url;
	}

// ----------------------------------------------------------------------------
// getQueryString (url)
// ----------------------------------------------------------------------------
function getQueryString (url) {
	var pos;

	// Rimuove l'eventuale ancora
	pos = url.indexOf('#');
	if (pos==-1) {
	} else {
		url = url.substring(0,pos);
	}

	pos = url.indexOf('?');
	if (pos==-1) {
		queryString = '';
	} else {
		queryString = url.substring(pos+1);
	}

	return queryString;
}

// ----------------------------------------------------------------------------
// getUrlPath (url)
// ----------------------------------------------------------------------------
function getUrlPath (url) {
	var pos, urlPath;

	// Rimuove l'eventuale ancora
	pos = url.indexOf('#');
	if (pos==-1) {
	} else {
		url = url.substring(0,pos);
	}

	pos = url.indexOf('?');
	if (pos==-1) {
		urlPath = url;
	} else {
		urlPath = url.substring(0,pos);
	}

	urlPath = urlPath.substr(urlPath.indexOf('//')+2);
	urlPath = urlPath.substr(urlPath.indexOf('/'));

	return urlPath;
}

// --------------------------------------------------------------------------------------
// artistGoto (object,artist,genre)
// --------------------------------------------------------------------------------------
function artistGoto (object,artist,genre) {
	var encodedArtist, encodedGenre, url;

	if (artist==null && genre==null) {
		url = location.href;
		url = url.substr(0,url.lastIndexOf('/')+1);
		url = url+object+'.html';
	} else {
		encodedArtist = encodeArtistItem(artist);
		encodedGenre = encodeArtistItem(genre);
		url = '/'+encodedGenre+'/'+encodedArtist+'/'+object+'.html';
	}

	location.href = url;
}

// --------------------------------------------------------------------------------------
// urlEncode (str)
// --------------------------------------------------------------------------------------
function urlEncode (str) {
	var encodedStr, re;

	re = new RegExp(" ","g");
	encodedStr = str.replace(re,"+");

	encodedStr = escape(encodedStr);

	return encodedStr;
}

// --------------------------------------------------------------------------------------
// urlDecode (str)
// --------------------------------------------------------------------------------------
function urlDecode (str) {
	var decodedStr, re;

	decodedStr = unescape(str);
	re = new RegExp("\\+","g");

	decodedStr = decodedStr.replace(re," ");
	return decodedStr;
}

Array.prototype.contains = function ( obj ){
				   for ( var i in this )
					  if ( this[i] == obj ){return true;}
				   return false;
				}


ArtistsHP = {
	allArtists: [],
	suggestedUrls: [],
	currentSuggested: 0,


	displayArtists: function( theList ){
		function fillRandomArray( category ){
			var theArray = new Array();
			while (theArray.length<=5){
				var pos = Math.floor(Math.random()*ArtistsHP.allArtists.length);
				if (!theArray.contains(pos) && ArtistsHP.allArtists[pos].c==category){
					theArray[theArray.length]=pos;
				}
			}
			return theArray;
		}
		function writeFirstArtist(index, theRandomArray ){
			var url = '/'+ArtistsHP.allArtists[theRandomArray[0]].c+'/'+ArtistsHP.allArtists[theRandomArray[0]].p.replace(/\.jpg/, '/index.html');

			$('div.boxgenere:eq('+index+')>p.nomeartista:first>a').html(ArtistsHP.allArtists[theRandomArray[0]].d);
			$('div.boxgenere:eq('+index+')>p.nomeartista:first>a').attr('href',url);
			$('div.boxgenere:eq('+index+')>p.foto>a').attr('href',url);
			$('div.boxgenere:eq('+index+')>p.foto>a>img').attr('src', imageServer + '/n_canali/musica/artisti/' + ArtistsHP.allArtists[theRandomArray[0]].p);
			var altText = ArtistsHP.allArtists[theRandomArray[0]].d;
			altText = altText.replace(/"/g,'');
			$('div.boxgenere:eq('+index+')>p.foto>a>img').attr('alt',altText);
			$('div.boxgenere:eq('+index+')>p.foto>a>img').attr('title',altText);
		}
		function writeArtists(boxIndex, artistIndex, theRandomArray){
			$('div.boxgenere:eq('+boxIndex+')>ul>li:eq('+(artistIndex-1)+')>a').html(ArtistsHP.allArtists[theRandomArray[artistIndex]].d);
			$('div.boxgenere:eq('+boxIndex+')>ul>li:eq('+(artistIndex-1)+')>a').attr('href', '/'+ArtistsHP.allArtists[theRandomArray[artistIndex]].c+'/'+ArtistsHP.allArtists[theRandomArray[artistIndex]].p.replace(/\.jpg/, '/index.html'));
		}

		if (theList) {ArtistsHP.allArtists = theList;}
		var output = '';
		var randomRock   = fillRandomArray('rock');
		var randomPop    = fillRandomArray('pop');
		var randomSoul 	 = fillRandomArray('soul-rhythm-and-blues');
		var randomHiphop = fillRandomArray('hip-hop');
		var randomWorld  = fillRandomArray('world');

		writeFirstArtist( 0, randomRock );
		writeFirstArtist( 1, randomPop );
		writeFirstArtist( 2, randomSoul );
		writeFirstArtist( 3, randomHiphop );
		writeFirstArtist( 4, randomWorld );

		for (var i=1; i<=5; i++){
			writeArtists(0, i, randomRock);
			writeArtists(1, i, randomPop);
			writeArtists(2, i, randomSoul);
			writeArtists(3, i, randomHiphop);
			writeArtists(4, i, randomWorld);
		}

	},

	suggest: function (theEvent){

		function getArtistUrl( index ){
			return '/'+ArtistsHP.allArtists[index].c+'/'+ArtistsHP.allArtists[index].p.replace(/\.jpg/, '/index.html');
		}

		$('#thesuggested').html(' ');
		$('#thesuggested').show();

		console.log('0)' + $('#searchsuggest').get(0).value);
		console.log('0)' + $('#thesuggested').html());
		console.log('0)' + theEvent.keyCode);

		if(theEvent && theEvent.keyCode && theEvent.keyCode==13 && ArtistsHP.suggestedUrls.length>0){
			window.location.href = ArtistsHP.suggestedUrls[ArtistsHP.currentSuggested];
		}else if(theEvent && theEvent.keyCode && theEvent.keyCode==38 && ArtistsHP.suggestedUrls.length>0){
			ArtistsHP.currentSuggested--;
			if(ArtistsHP.currentSuggested<0){ ArtistsHP.currentSuggested=ArtistsHP.suggestedUrls.length-1 }
		}else if(theEvent && theEvent.keyCode && theEvent.keyCode==40 && ArtistsHP.suggestedUrls.length>0){
			ArtistsHP.currentSuggested++;
			if(ArtistsHP.currentSuggested>=ArtistsHP.suggestedUrls.length){ ArtistsHP.currentSuggested=0 }
		}else{
			ArtistsHP.currentSuggested=0;
		}

		var what = $('#searchsuggest').get(0).value;
		if(what.length>=2){
			var toSuggest = '';
			var count = 0;
			ArtistsHP.suggestedUrls = [];
			for (var i=0; i<ArtistsHP.allArtists.length; i++){
				try{
					var d = ArtistsHP.allArtists[i].d.toLowerCase();
					var s = ArtistsHP.allArtists[i].s.toLowerCase();
					var c = ArtistsHP.allArtists[i].c;
					if (toSuggest>=5){
						break;
					}
					if (c=='') {
						continue;
					}
					if ( s.substring(0,what.length) == what ){
						toSuggest += '<p class="stampanome"><a href="' + getArtistUrl(i) + '">' + s + '</a></p>';
						ArtistsHP.suggestedUrls[ArtistsHP.suggestedUrls.length] = getArtistUrl(i);
						count++;
						continue;
					}
					if ( d.substring(0,what.length) == what ){
						toSuggest += '<p class="stampanome"><a href="' + getArtistUrl(i) + '">' + d + '</a></p>';
						ArtistsHP.suggestedUrls[ArtistsHP.suggestedUrls.length] = getArtistUrl(i);
						count++;
						continue;
					}

				}catch(exc){
					continue;
				}
			}
			if (count==0) {
				toSuggest += '<p class="stampanome">Nessun artista trovato</p>';
			}
			$('#thesuggested').append(toSuggest + '<p class="chiudi"><a href="javascript: ArtistsHP.close();">Chiudi</a></p>');
		}else{
			$('#thesuggested').append('<p class="stampanome">Inserisci almeno due caratteri</p> <p class="chiudi"><a href="javascript: ArtistsHP.close();">Chiudi</a></p>');
		}

		$('#thesuggested').show();
		if(ArtistsHP.suggestedUrls.length>0){
			$('p.stampanome:eq('+ArtistsHP.currentSuggested+')').css(  {	backgroundColor: '#ccc',
																			backgroundImage: 'url(../images/freccia_suggest.gif)',
																			backgroundRepeat: 'no-repeat',
																			backgroundPosition: '230px 5px'}  );
			console.log('3) ' + ArtistsHP.currentSuggested);
		}



		console.log('999)' + $('#searchsuggest').get(0).value);
		console.log('999)' + $('#thesuggested').html());

	},

	close: function(){
		$('#thesuggested').hide();
	}

}


var MyStrands = {

	carga: function (artistId, artistName, trackTitle, trackTime){
		artistName = encodeURIComponent(artistName);
		trackTitle = encodeURIComponent(trackTitle);
		if (trackTime==undefined) {
			trackTime = '-1';
		}
		var URL = 'http://tv.mymusic.virgilio.it/popup/artist/'+artistName+'#'+artistId+'|0|0|'+trackTime+'|'+trackTitle;
		window.open(URL, /*artistName*/'_blank', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=344,height=750');
	},

	cargaArtistVideo: function (videoId, artistName, trackTitle, trackTime){
		artistName = encodeURIComponent(artistName);
		trackTitle = encodeURIComponent(trackTitle);
		if (trackTime==undefined) {
			trackTime = '-1';
		}
		var URL = 'http://tv.mymusic.virgilio.it/popup/artist/'+artistName+'#0|'+videoId+'|3|'+trackTime+'|'+trackTitle;
		window.open(URL, /*artistName*/'_blank', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=344,height=750');
	},

	cargaQSVideo: function (videoId,queryString, trackTitle, trackTime){
		queryString = encodeURIComponent(queryString);
		trackTitle  = encodeURIComponent(trackTitle);
		if (trackTime==undefined) {
			trackTime = '-1';
		}
		var URL = 'http://tv.mymusic.virgilio.it/popup/video/'+queryString+'#0|'+videoId+'|3|'+trackTime+'|'+trackTitle;
		window.open(URL, /*trackTitle*/'_blank', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=344,height=750');
	},

	cargaArtistChannel: function (artistName){
		artistName = encodeURIComponent(artistName);
		var URL = 'http://tv.mymusic.virgilio.it/popup/artist/'+artistName;
		window.open(URL, /*artistName*/'_blank', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=344,height=750');
	},

	cargaUserChannel: function (alias){
		alias = encodeURIComponent(alias);
		var URL = 'http://tv.mymusic.virgilio.it/popup/user/'+alias;
		window.open(URL, /*alias*/'_blank', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=344,height=750');
	},

	cargaGenreChannel: function (genre){
		genre = encodeURIComponent(genre);
		var URL = 'http://tv.mymusic.virgilio.it/popup/genre/'+genre;
		window.open(URL, /*genre*/'_blank', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=344,height=750');
	}


}
//alert(MyStrands)

// --------------------------------------------------------------------------------------
// boxFiltriAggiungi (filtro,valore)
// --------------------------------------------------------------------------------------
function boxFiltriAggiungi(filtro,valore) {
	var url;

	if (filtro=='genere') {
		if (location.href.match(/\/news\//)) {
			url = '/news/'+valore+'/index.html?'+getQueryString(location.href);
		} else {
			url = '/'+valore+'/index.html?'+getQueryString(location.href);
		}
		url = removeParameter(url,'offset');
		console.log (url);
		location.href = url;
	}

	if (filtro=='tipo' || filtro=='fonte') {
		url = location.href;
		url = addParameter(url,filtro,valore);
		url = removeParameter(url,'offset');
		console.log (url);
		location.href = url;
	}
}

// --------------------------------------------------------------------------------------
// boxFiltriRimuovi (filtro)
// --------------------------------------------------------------------------------------
function boxFiltriRimuovi(filtro) {
	var url;

	if (filtro=='genere') {
		if (location.href.match(/\/news\//)) {
			url = '/news/index.html?'+getQueryString(location.href);
		} else {
			//url = '/ricerca/index.html?'+getQueryString(location.href);
			url = '/artisti/index.html';
		}
		url = removeParameter(url,'offset');
		console.log (url);
		location.href = url;
	}

	if (filtro=='tipo' || filtro=='fonte') {
		url = location.href;
		url = removeParameter(url,filtro);
		url = removeParameter(url,'offset');
		console.log (url);
		location.href = url;
	}
}

// --------------------------------------------------------------------------------------
// pagingHide ()
// --------------------------------------------------------------------------------------
function pagingHide() {
	$(".paginazione").html("");
}