/*global YGeoPoint, YMarker, YImage, EventsList, YCoordPoint, YMap, YSize, YEvent, ActiveXObject */
var map = null; 
var specialMarker = null;
var xmlHttp = null ;
var sc_mapsize = 0;
var noCustomPoints = 0;
var spotImage = new YImage("http://sap-consulting.ro/images/spot_big.png", new YSize(16, 16), new YCoordPoint(11, 8));

function addNew(implname, lat, lon) {
	if (lat === 0 || lon === 0)	{
		return;
	}
	var newMarker, currentGeoPoint = new YGeoPoint(lat, lon);

	newMarker = new YMarker(currentGeoPoint, spotImage); 
	newMarker.openSmartWindow('   ' + implname);
	newMarker.enableAutoContain();
//	newMarker.addAutoExpand(implname);
//	newMarker.openAutoExpand()
	if (specialMarker) {
		map.removeMarker(specialMarker.id);
		specialMarker = null;
	}
	map.addOverlay(newMarker);
	map.panToLatLon(currentGeoPoint);
}

function showSendBox(pDisplay)	{
	if (pDisplay)	{
		document.getElementById('sendbox').style.display = 'block';
		document.getElementById('addnew').className = 'boldnolink';
	}		
	else	{
		document.getElementById('sendbox').style.display = 'none';
		document.getElementById('addnew').className = 'jslink';
	}
}

function reportPosition(ev, coords) {
	
	var currentGeoPoint = new YGeoPoint(coords.Lat, coords.Lon);

	if (!specialMarker)	{
		specialMarker = new YMarker(currentGeoPoint); 
		map.addOverlay(specialMarker);
	}
	else	{
		specialMarker.setYGeoPoint(currentGeoPoint);
	}

	document.sendimpl.latit.value = coords.Lat;
//	document.sendimpl.latit.select();
	document.sendimpl.longit.value = coords.Lon;
	showSendBox(true);
}

function readFromDB(search_term)	{
	if (!createXmlHttp())	{
		return "";
	}
	var url = "/code/implmap.php?lang=en";
	if (search_term)	{
		url = url + "&st=" + search_term;
	}
	xmlHttp.open("GET", url, false);
	xmlHttp.send(null);
	if (xmlHttp.status === 200) {
		return xmlHttp.responseText; //use xmlhttp.responseText or responseXML here
	}
	else	{
		return '';
	}
}

function addImplMarkers(search_term) {
	var crtGeoPoint, lResult, newMarker, allImpl, i;
	lResult = readFromDB(search_term);
	if (lResult) {
		allImpl = eval('(' + lResult + ')');
		for (i = 0;i < allImpl.item.length; i = i+1)	{
			if (allImpl.item[i].lat && allImpl.item[i].long) {
				crtGeoPoint =  new YGeoPoint(allImpl.item[i].lat, allImpl.item[i].long); 
				newMarker = new YMarker(crtGeoPoint, spotImage);
				if (allImpl.item[i].desc)	{
					newMarker.openSmartWindow('&nbsp;&nbsp;&nbsp;' + allImpl.item[i].desc);
				}
				map.addOverlay(newMarker);
			}
		}
		if (allImpl.msg)	{
			document.getElementById('errmsg').innerHTML = allImpl.msg;
		}
		return allImpl;			
	}
}

function showAllMarkers() {
	var allImpl = addImplMarkers('');
	if (allImpl)	{
		document.getElementById("noimpl").innerHTML = allImpl.item.length;
	}
}

function GetXmlHttpObject() {
	var xmlHttp = null;
	
	try	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
	}
	catch (e) {
		// Internet Explorer
		try {
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e2) {
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}

function createXmlHttp() {
	if (xmlHttp !== null)	{
		return true;
	}
	xmlHttp = GetXmlHttpObject();
	if (xmlHttp === null)	{
		alert("Browser does not support HTTP Request");
		return false;
	}
	return true;
}

function change_size() {
	sc_mapsize = 1 - sc_mapsize;
	var	mapBox = document.getElementById('map'),
		lHeight,
		lWidth,
		lCenter = map.getCenterLatLon(),
		lSize;
	if (sc_mapsize === 0)	{
		document.getElementById('link_large').innerHTML = 'Large<br>format';
		map.setZoomLevel(map.getZoomLevel() + 1);
		lHeight = 350;
		lWidth = 495;
	}
	else	{
		document.getElementById('link_large').innerHTML = 'Small<br>format';
		map.setZoomLevel(map.getZoomLevel() - 1);
		lHeight = 600;
		lWidth = 850;
	}
	mapBox.style.height = lHeight;
	mapBox.style.width = lWidth;
	lSize = new YSize(lWidth, lHeight);
	map.resizeTo(lSize);
	map.panToLatLon(lCenter);
}

function search_impl() {
	var lCompany = document.getElementById('company').value;
	show_search_result(lCompany);
	return false;
}

function show_search_result(lCompany)	{
	var allImpl;
	if (lCompany.length < 4)	{
		alert("Company name must have at least 4 letters");
	}
	if (noCustomPoints === 0)	{
		map.removeMarkersAll();
	}
	allImpl = addImplMarkers(lCompany);
	if (allImpl !== null && allImpl.item.length > 0)	{
		map.panToLatLon(new YGeoPoint(allImpl.item[0].lat, allImpl.item[0].long));
		noCustomPoints = noCustomPoints + 1;
	}
	else	{
		document.getElementById('implname').value = lCompany;
		showSendBox(true);
	}
	document.getElementById('company').value = "";
}

function urlencode(str) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // %          note: info on what encoding functions to use from: http://xkr.us/articles/javascript/encode-compare/
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
                                     
	var histogram = {}, histogram_r = {}, code = 0, tmp_arr = [],
    		ret = str.toString();
    		replacer = function(search, replace, str) {
			var tmp_arr = [];
			tmp_arr = str.split(search);
			return tmp_arr.join(replace);
			};
    
	// The histogram is identical to the one in urldecode.
	histogram['!']   = '%21';
	histogram['%20'] = '+';
	
	// Begin with encodeURIComponent, which most resembles PHP's encoding functions
	ret = encodeURIComponent(ret);
	
	for (search in histogram) {
	  replace = histogram[search];
	  ret = replacer(search, replace, ret) // Custom replace. No regexing
	}
	
	// Uppercase for full PHP compatibility
	return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
	  return "%" + m2.toUpperCase();
	});
	
	return ret;
}

function addImplementation(pForm)	{
	if (pForm.implname.value.length < 4) {
		alert("Company name must have at least 4 letters");
		return false;
	}
	if ((pForm.latit.value === "" || pForm.longit.value === "") && pForm.address.value === "")	{
		alert("Fill in latitude/longitude by double clicking on the map or fill in the address");
		return false;
	}
	if ((pForm.repname.value === "" || pForm.email.value === "") && pForm.details.value === "") {
		alert("Fill either name/address, or other details");
		return false;
	}
	if (!createXmlHttp())	{
		return;
	}
	xmlHttp.open("POST", "/code/implmap.php", true);
	var params = "implname=" + urlencode(pForm.implname.value) +
	 		"&latit="    + urlencode(pForm.latit.value)   +
	 		"&longit="   + urlencode(pForm.longit.value)  +
			"&address="  + urlencode(pForm.address.value) +
			"&repname="  + urlencode(pForm.repname.value) +
			"&email="    + urlencode(pForm.email.value)   +
			"&details="  + urlencode(pForm.details.value);

	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", params.length);
	xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(params);

	if (noCustomPoints === 0)	{
		map.removeMarkersAll();
	}
	addNew(pForm.implname.value, pForm.latit.value, pForm.longit.value);
	noCustomPoints = noCustomPoints + 1;
	document.getElementById('errmsg').innerHTML = "Thank you! After verification the implementation will be added to the map.";
	showSendBox(false);
	pForm.implname.value = "";
	pForm.latit.value    = "";
	pForm.longit.value   = "";
	pForm.address.value  = "";
	pForm.repname.value  = "";
	pForm.email.value    = "";
	pForm.details.value  = "";
	return false;
}

function zoomOnBuc() {
	if (sc_mapsize === 0) {
		map.setZoomLevel(7);
	}
	else	{
		map.setZoomLevel(6);
	}
	map.panToLatLon(new YGeoPoint(44.4450557989, 26.109008789));
}

function zoomOnRom() {
	if (sc_mapsize === 0) {
		map.setZoomLevel(12);
	}
	else	{
		map.setZoomLevel(11);
	}
	map.panToLatLon(new YGeoPoint(45.90529986, 24.91699219));
}

function startMap(ini_location) {
	// Create a Map that will be placed in the "map" div.

	map = new YMap(document.getElementById('map')); 
	// Add the zoom control. Long specifies a Slider versus a "+" and "-" zoom control
	map.addZoomLong();
	map.disableKeyControls();
	map.disablePanOnDoubleClick();
	map.setZoomRange(1, 12);

	// Specifying the Map starting location and zoom level
	var centerPoint = new YGeoPoint(45.90529986, 24.91699219);
	map.drawZoomAndCenter(centerPoint, 12);
	if (ini_location === "b")	{
		zoomOnBuc();
	}

// Add an event 
	YEvent.Capture(map, EventsList.MouseDoubleClick, reportPosition);
}