var eng = new Object;
var current = new Object;
var fadeDur = 100;

$(document).ready(function()
{
	$("#i").keyup(function(key) 	{ fetchSuggestions(key.which); });
	$(document).click(function(ev) 	{ closeSugBox(ev.srcElement) });

	$("#toggleInfo").click(function(){
		$("#infoBox").toggle(400);
	});
	
	build(firstProp(eng), false);
});

function doSearch()
{
	var url = eng[current.engine].places[current.place][0];
	url = url.replace("%query%", encodeURI($("#i").val()));
	if (eng[current.engine].languageSwitcherEnabled) url = url.replace("%lang%", eng[current.engine].languages[current.language]);
	
	window.location.href = url;
	return false;
}


/*	GENERATING THE SEARCH PAGE
	-----------------------------------------------------  */

function build(e, animate) 
{
	current.engine = e;		// Just the engine's ID for reference
	e = eng[e];				// Engine object
	
	$("#title").html(e.pageTitle);
	$("h1 span").css({"backgroundImage": "url(engines/"+e.logo+")"});
	
	$("#method").html("");
	for (place in e.places) $("#method").append("<a onclick='setPlace(this)'>"+place+"</a>");
	
	$("#i").attr("autosave", "com.infinise.go."+current.engine);
	
	setPlace("#method a:first");
	
	if (e.languageSwitcherEnabled) setLang(firstProp(e.languages));
	else $("#lang").fadeOut(fadeDur);
	
	$("#input input").focus();
	
	if (animate) {
		$("h1 span").animate({"opacity": 1}, fadeDur);
		$("#method").animate({"opacity": 1}, fadeDur);
	}
}

function setPlace(place) 
{
	current.place = $(place).html();
	
	$("#method a").removeClass("active");
	$(place).addClass("active");
	$("#input input").focus();
	
	if (eng[current.engine].places[current.place][1] !== false)
	{
		fetchSuggestions();
		$("#i").attr("autocomplete", "off");
	} 
	else 
	{
		closeSugBox(false);
		$("#i").attr("autocomplete", "on");
	}
}

function setLang(language) 
{
	current.language = language;
	
	$("#lang").fadeIn(fadeDur).html(language);
	$("#input input").focus();
}


/*	KEYBOARD SHORTCUTS
	-----------------------------------------------------  */

var isCtrl = false;
var isCmd = false;

$(document).keyup(function(e) 
{
	if (e.which == 17) isCtrl=false;
	if (e.which == 91) isCmd=false;	
}
).keydown(function(e) 
{
	if (e.which == 17) isCtrl=true;
	if (e.which == 91) isCmd=true;
	
	if (e.which == 49 && isCtrl == true) 	{ /* Key "1" */ 	nextEngine(); }
	if (e.which == 50 && isCtrl == true) 	{ /* Key "2" */ 	nextPlace(); }
	if (e.which == 51 && isCtrl == true) 	{ /* Key "3" */ 	nextLanguage(); }
		
	if (e.which == 38) 						{ /* Arrow Up */ 	prevSugResult(); }	
	if (e.which == 40) 						{ /* Arrow Down */ 	nextSugResult(); }	
	if (e.which == 27) 						{ /* ESC */ 		closeSugBox(false); }	
	if (e.which == 13) 						{ /* Enter */ 		applySugResult(); }
});

function nextEngine() 
{
	$("h1 span").animate({"opacity": 0}, fadeDur);
	$("#method").animate({"opacity": 0}, fadeDur);
	setTimeout("build(findNext(eng, current.engine), true);", fadeDur);
}

function nextPlace() 
{
	var nextPlace = findNext(eng[current.engine].places, current.place);
	$("#method a").each(function()
	{
		if ($(this).html() == nextPlace) setPlace($(this));
	})
}

function nextLanguage() 
{
	setLang(findNext(eng[current.engine].languages, current.language));
}


/*	SUGGESTIONS
	-----------------------------------------------------  */

function fetchSuggestions(key) 
{
	if (key == undefined || (!inArray(key, new Array(13,16,20,27,37,38,39,40)) && !isCtrl && !isCmd)) 
	{
		if ( $("#i").val() != "" && eng[current.engine].places[current.place][1] !== false ) 
		{
			var url = eng[current.engine].places[current.place][1];
			url = url.replace("%query%", encodeURI($("#i").val()));
			if (eng[current.engine].languageSwitcherEnabled) url = url.replace("%lang%", eng[current.engine].languages[current.language]);
	
			$.get(url, function(data) { buildSuggestions(data); })
		} 
		else closeSugBox(false);
	}
}

function buildSuggestions(list) 
{
	if (list == "" || eng[current.engine].places[current.place][1] === false ) {
		closeSugBox(false);
	} else {
		$("#sugs").html(list).css({"display": "block"});
		$("#sugs li").mousemove(function() {
			$("#sugs .active").removeClass("active");
			$(this).addClass("active");
		}).click(function() {
			applySugResult();
		});
	}
}

function prevSugResult() 
{
	if ($("#sugs").css("display") == "none") return;
	if ($("#sugs .active").length == 0) {
		$("#sugs li:last-child").addClass("active");
	} else {
		$("#sugs .active").removeClass("active").prev().addClass("active");
	}
	backupQuery();
}

function nextSugResult() 
{
	if ($("#sugs").css("display") == "none") return;
	if ($("#sugs .active").length == 0) {
		$("#sugs li:first-child").addClass("active");
	} else {
		$("#sugs .active").removeClass("active").next().addClass("active");
	}
	backupQuery();
}

var originalQuery = false;

function backupQuery() 
{
	if ($("#sugs .active").length > 0) {
		if (!originalQuery) originalQuery = $("#i").val();
		$("#i").val($("#sugs .active a").html());
	} else {
		$("#i").val(originalQuery);
		originalQuery = false;
	}
}

function closeSugBox(src) 
{
	if (src == false || (src.id != "i" && src.id != "sugs"))
		$("#sugs").html("").css({"display": "none"});
}

function applySugResult() 
{
	if ($("#sugs .active").length > 0) {
		$("#i").val($("#sugs .active a").html());
		closeSugBox(false);
	}
}