/* Google Grabber v1.2
Coded by Maurizio Fonte
*/

function myCustomAnim() {
	if( $('#searchHolder').css('display') == 'none' ) $('#searchHolder').slideDown('slow');
}

function myCustomNoResultsAnim() {
	$('#searchHolder').html('<p class="searchHeader">Non ho trovato nulla...</p>');
	$('#searchHolder').slideDown(500);
	$('#searchHolder').fadeOut(5000);
}

function myCustomCloserAnim() {
	$('#searchHolder').slideUp('slow');
}

function myCustomBeginWaitingAnim() {
	$('#ajax-loader-wrapper').slideToggle();
}

function myCustomEndWaitingAnim() {
	$('#ajax-loader-wrapper').slideToggle();
}

function myCustomLinkClickEvent(link) {
	link = link.replace(/http:\/\//g, '');
	window.open('http://www.mauriziofonte.it/link/search/' + link + '&query=' + _utf8_encode(lastQuery), 'Ricerca');
}

var page = 1;
var siteFilter = ''; // Non utilizzato, messo direttamente nel modulo grabber per evitare attacchi
var fbid = '#fireSearch';
var qh = '#searchText';
var cd = '#searchHolder';
var lastQuery = "";
var animateSearchLoad = true;
	var animateFunction = myCustomAnim;
var displayWaitingSomething = true;
	var beginWaitingAnimation = myCustomBeginWaitingAnim;
	var endWaitingAnimation = myCustomEndWaitingAnim;
var customLinkClickBehaviour = true;
	var linkClickFunction = myCustomLinkClickEvent;
var displayCloserTag = true;
	var closerAnimateFunction = myCustomCloserAnim;
var customNoResultsBehaviour = true;
	var noResultsAnimateFunction = myCustomNoResultsAnim;
var displayCustomSearchHeader = true;
	var customSearchHeader = '<p class="searchHeader">Risultati Ricerca</p>';

$(document).ready(function(){
	$(fbid).click(function() {
		if(displayWaitingSomething) beginWaitingAnimation();
		$(cd).html('');
		var query = $(qh).val();
		
		if(lastQuery != query) page = 1;
		lastQuery = query;
		
		$.ajax({
			type: 'GET',
			data: 'q=' + query + '&p=' + page, 
			url: '/moduli/ajax/gb.php', 
			dataType: 'xml', 
			success: performSearch, 
			error: function (a, b, e) {
				if(displayWaitingSomething) endWaitingAnimation();
				alert('Errore stupido del tuo browser nel parsing della risposta XML... Cambia browser per evitare l\'errore...');
			}
		});
	});
});

function reloadSearchContent(pagina){
	page = pagina;
	$(fbid).trigger('click');
}

function reloadSearchString(string) {
	$(qh).val(string);
	$(fbid).trigger('click');
}

performSearch = function(xml) {
	var output = "";
	
	// Retrieving del numero di risultati, per vedere se mandare in output o no
	if ( parseInt( $(xml).find('infos res').text() ) >= 1 ) {
		var total = $(xml).find('infos total').text();
		var pages = Math.round( total / 10 );
		if ( pages > 10 ) pages = 10;
		if(displayCustomSearchHeader) output += '<p class="searchHeader">Risultati Ricerca <span style="margin-left: 15px; font-size:70%">(Pagina ' + page + ' di ' + pages + ')</span></p>';
		if(displayCloserTag) output += '<p class="searchCloser"><a href="javascript:void(0);" onclick="javascript:closerAnimateFunction();">Chiudi</a></p>';
		
		// Retrieving dati della stringa sulla ricerca
		var searchString = $(xml).find('infos string').text();
		//output += '<p class="searchStatus">' + searchString + '</p>';
		
		// Retrieving del nesting di elementi
		$(xml).find('element').each(function() {
			var link = $(this).find('link').text();
			var title = $(this).find('title').text();
			var desc = $(this).find('description').text();
			if(customLinkClickBehaviour) var linkHTML = '<a href="javascript:void(0);" onclick="javascript:linkClickFunction(\'' + link + '\');">' + title + '</a>';
			else var linkHTML = '<a href="' + link + '">' + html_entity_decode(title) + '</a>';
			output += '<p class="link">' + linkHTML + '</p><p class="description">' + html_entity_decode(desc) + '</p>';
		});
		//output += '<p class="link"><a href="javascript:void(0);" onclick="javascript:linkClickFunction(\'http://www.mauriziofonte.it/blog/post/\');">LINK CUSTOM</a></p>'
		
		// Calcolo delle pagine plausibili
		var total = $(xml).find('infos total').text();
		var pages = Math.round( total / 10 );
		if (total > 10) {
			output += '<p class="searchPages"><ul>';
			if (pages > 10) pages = 10;
			var currentPageStyle = "";
			for( var i = 0; i < pages; i++) {
				if ( (i+1) == page ) currentPageStyle = ' style="text-decoration: underline; color: #CCC;"';
				else currentPageStyle = '';
				output += '<li><a href="javascript:void(0);" id="pageChanger_' + i + '" onclick="reloadSearchContent(' + (i+1) + ');"' + currentPageStyle + '>' + (i+1) + '</a></li>';
			}
			output += '</ul></p>';
		}
		
		$(cd).html(output);
		if(displayWaitingSomething) endWaitingAnimation();
		if (animateSearchLoad) animateFunction();
	}
	else {
		// In questo caso non ho trovato risultati, ma nel "forse cercavi" potrebbe esserci qualcosa...
		if( $(xml).find('infos maybe').text() != "NULL" ) {
			var forseCercavi = $(xml).find('infos maybe').text();
			
			if(displayCustomSearchHeader) output += customSearchHeader;
			
			output += '<p class="maybeSearch">Forse Cercavi <a href="javascript:void(0);" id="maybeSearchTrigger" onclick="reloadSearchString(\'' + forseCercavi + '\')">' + forseCercavi + '</a> ??</p>';
			
			$(cd).html(output);
			if(displayWaitingSomething) endWaitingAnimation();
			if (animateSearchLoad) animateFunction();
		}
		else {
			if(displayWaitingSomething) endWaitingAnimation();
			if(customNoResultsBehaviour) noResultsAnimateFunction();
		}
	}
}

function _utf8_encode(string) {
	string = string.replace(/\r\n/g,"\n");
	var utftext = "";
	for (var n = 0; n < string.length; n++) {
		var c = string.charCodeAt(n);
		if (c < 128) utftext += String.fromCharCode(c);
		else if((c > 127) && (c < 2048)) {
			utftext += String.fromCharCode((c >> 6) | 192);
			utftext += String.fromCharCode((c & 63) | 128);
		}
		else {
			utftext += String.fromCharCode((c >> 12) | 224);
			utftext += String.fromCharCode(((c >> 6) & 63) | 128);
			utftext += String.fromCharCode((c & 63) | 128);
		}
	}
	return escape(utftext);
}

function html_entity_decode(str) {
	var ta=document.createElement("textarea");
	ta.innerHTML=str.replace(/</g,"&lt;").replace(/>/g,"&gt;");
	return ta.value;
}