const MONTHS = ["Januari", "Februari", "Maret", "April", "Mei", "Juni", "Juli", "Agustus", "September", "Oktober", "November", "Desember"];
const MONTHS_SHORT = ["Jan", "Feb", "Mar", "Apr", "Mei", "Jun", "Jul", "Agu", "Sep", "Okt", "Nov", "Des"];

var map;
var mapview;

var cur_active_layer;

var layer_pdie;
var layer_hth_das_info;
var layer_hth_das_view;

var source_pdie;
var source_hth_das_info;
var source_hth_das_view;

var maptitle_hth;
var maptitle_pdie;

var legend_pdie = [
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pdie,0", "Tidak ada peringatan"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pdie,1", "Waspada"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pdie,2", "Siaga"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pdie,3", "Awas"]
];

var legend_hth_das_view = [
	["1 - 5", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das1,0", "Sangat Pendek (Very Short)"],
	["6 - 10", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das2,0", "Pendek (Short)"],
	["11 - 20", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das3,0", "Menengah (Moderate)"],
	["21 - 30", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das4,0", "Panjang (Long)"],
	["31 - 60", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das5,0", "Sangat Panjang (Very Long)"],
	["> 60", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das6,0", "Extrem Panjang (Extremely Long)"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=hth_das0,0", "Masih ada hujan s/d updating (No Drought)"]
];

var infodetails;

$(function(){
	
	infodetails = new ol.Overlay({
		element: document.getElementById('infodetails'),
		autoPan: true,
		autoPanAnimation: {
			duration: 250,
		},
	});

	mapview = new ol.View({
		center: ol.proj.fromLonLat([118.1661992, -2.2070457]),
		zoom: 5,
		constrainResolution: true
	});
	
	//init ol
	map = new ol.Map({
		target: 'mapcontainer',
		layers: [
			new ol.layer.Tile({
				source: new ol.source.OSM()
			})
		],
		view: mapview,
		overlays: [infodetails],
		interactions: ol.interaction.defaults({mouseWheelZoom:false})
	});
	
	source_pdie = new ol.source.ImageWMS({url: 'https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg'});
	layer_pdie = new ol.layer.Image({source:source_pdie, visible:false});
	map.addLayer(layer_pdie);

	source_hth_das_info = new ol.source.ImageWMS({url: 'https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg'});
	layer_hth_das_info = new ol.layer.Image({source:source_hth_das_info, visible:false});
	map.addLayer(layer_hth_das_info);
	
	source_hth_das_view = new ol.source.ImageWMS({url: 'https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg'});
	layer_hth_das_view = new ol.layer.Image({source:source_hth_das_view, visible:false});
	map.addLayer(layer_hth_das_view);
	
	//init layer switcher
	
	$(".layerswitcher .toggle").click(function(){
		if($(this).parent().attr("state")=="opened"){
			$(this).siblings(".content").hide();
			$(this).children("button").children("i").removeClass("fa-times");
			$(this).children("button").children("i").addClass("fa-layer-group");
			$(this).parent().attr("state","closed");
		}else{
			$(this).siblings(".content").show();
			$(this).children("button").children("i").removeClass("fa-layer-group");
			$(this).children("button").children("i").addClass("fa-times");
			$(this).parent().attr("state","opened");
		}
	});
	
	$(".layerswitcher .content input[name^='optlayer']").change(function(){
		var date1 = $(this).siblings("select").children("option:selected").attr("date1") || $(this).attr("date1") || "";
		var date2 = $(this).siblings("select").children("option:selected").attr("date2") || $(this).attr("date2") || "";
		var num1 = $(this).siblings("select").children("option:selected").attr("num1") || $(this).attr("num1") || "";
		var num2 = $(this).siblings("select").children("option:selected").attr("num2") || $(this).attr("num2") || "";
		
		switchLayer({
			layername:$(this).val(),
			date1:date1,
			date2:date2,
			num1:num1,
			num2:num2
		});
	});
	
	$(".layerswitcher .content select").change(function(){
		
		if($(this).siblings("input").is(":checked")){//hanya jika layer aktif
			var date1 = $(this).children("option:selected").attr("date1");
			var date2 = $(this).children("option:selected").attr("date2");
			var num1 = $(this).children("option:selected").attr("num1");
			var num2 = $(this).children("option:selected").attr("num2");
			
			switchLayer({
				layername:$(this).siblings("input").val(),
				date1:date1,
				date2:date2,
				num1:num1,
				num2:num2
			});
		}
		
	});

	//init default layer
	
		
	$(".layerswitcher .content input[value='pdie']").prop('checked', true);
	switchLayer({
		layername:"pdie",
		date1:"2024-09-01",
		num1:"1"
	});
	
	
	//init info details
	
	map.on('singleclick', function (e) {
		var viewResolution = mapview.getResolution();

		var alllayers = [
			{
				layercode: "pdie",
				url: source_pdie.getFeatureInfoUrl(e.coordinate, viewResolution, 'EPSG:3857', {'INFO_FORMAT': 'text/html'}),
				layertitle: "Peringatan Dini Kekeringan Meteorologis (PDKM)"
			},
			{
				layercode: "hth",
				url: source_hth_das_info.getFeatureInfoUrl(e.coordinate, viewResolution, 'EPSG:3857', {'INFO_FORMAT': 'text/html'}),
				layertitle: "Hari Tanpa Hujan"
			}
		];

		$("#infodetails-content").html("");

		var hasinfo = false;
		var processedlayer = 0;

		var totallayertoprocess = $("input[name^='optlayer']:checked").length;

		for(var i=0;i < alllayers.length;i++){

			if($("input[value='"+alllayers[i].layercode+"']").is(":checked")){

				var url = alllayers[i].url;

				fetch(url).then(async function (response) {
					if (!response.ok) {
						throw Error(response.statusText);
					}
					
					return {
						html: await response.text(),
						title: this.title
					};
				}.bind({
					title: alllayers[i].layertitle
				})).then(function (obj) {

					processedlayer++;

					var htmltrim = obj.html.trim();
					if(htmltrim){
						if(htmltrim.substring(0, 5) == "<tabl"){
							$("#infodetails-content").append("<div><div style='background-color: rgba(85, 164, 246, 1);color: white;padding: 5px;text-align: center;'><b>"+obj.title+"</b></div>"+obj.html+"</div>");
							hasinfo = true;
						}
					}

					if(processedlayer == totallayertoprocess){
						if(hasinfo){
							infodetails.setPosition(e.coordinate);
						}else{
							infodetails.setPosition(undefined);
						}
					}

				}).catch(function(e){
					processedlayer++;

					if(processedlayer == totallayertoprocess){
						if(hasinfo){
							infodetails.setPosition(e.coordinate);
						}else{
							infodetails.setPosition(undefined);
						}
					}
				});

			}
		}
		
	});

	//print out

	$("#mapprint-pdie").click(function(){
		
		var zoom = map.getView().getZoom();
		var center = ol.proj.transform(map.getView().getCenter(), 'EPSG:3857', 'EPSG:4326');
		var date = $(".layerswitcher .content select").children("option:selected").attr("date1");
		var num = $(".layerswitcher .content select").children("option:selected").attr("num1");

		window.open("peringatankekeringan_print.php?zoom=" + zoom + "&center0=" + center[0] + "&center1=" + center[1] + "&date=" + date + "&num=" + num);
	});

	$("#mapprint-hth").click(function(){
		$("#mdlprintout").modal("show");
	});


	// opacity control

	$(".slctransparant").val(1);

	$(".slctransparant").change(function(){
		switch($(this).attr("layercode")){
			case "pdie":
				layer_pdie.setOpacity(Number($(this).val()));
				break;

			case "hth":
				layer_hth_das_info.setOpacity(Number($(this).val()));
				layer_hth_das_view.setOpacity(Number($(this).val()));
				break;
		}
	});

});


function switchLayer(obj){
	var layername = obj.layername || "";
	var date1 = obj.date1 || "";
	var date2 = obj.date2 || "";
	var num1 = obj.num1 || "";
	var num2 = obj.num2 || "";
	
	cur_active_layer = layername;
	
	var omonth1_m2 = MONTHS[(parseInt(date1.substring(5,7))-3) < 0?(parseInt(date1.substring(5,7))-3+12):(parseInt(date1.substring(5,7))-3)];
	var omonth1_m1 = MONTHS[(parseInt(date1.substring(5,7))-2) < 0?(parseInt(date1.substring(5,7))-2+12):(parseInt(date1.substring(5,7))-2)];
	var omonth1 = MONTHS[parseInt(date1.substring(5,7))-1];
	var omonth1_p1 = MONTHS[(parseInt(date1.substring(5,7))) > 11?(parseInt(date1.substring(5,7))-12):(parseInt(date1.substring(5,7)))];
	var omonth1_p2 = MONTHS[(parseInt(date1.substring(5,7))+1) > 11?(parseInt(date1.substring(5,7))+1-12):(parseInt(date1.substring(5,7))+1)];

	var omonth1_short = MONTHS_SHORT[parseInt(date1.substring(5,7))-1];

	var oyear1 = date1.substring(0,4);
	
	var omonth2_m2 = MONTHS[(parseInt(date2.substring(5,7))-3) < 0?(parseInt(date2.substring(5,7))-3+12):(parseInt(date2.substring(5,7))-3)];
	var omonth2_m1 = MONTHS[(parseInt(date2.substring(5,7))-2) < 0?(parseInt(date2.substring(5,7))-2+12):(parseInt(date2.substring(5,7))-2)];
	var omonth2 = MONTHS[parseInt(date2.substring(5,7))-1];
	var omonth2_p1 = MONTHS[(parseInt(date2.substring(5,7))) > 11?(parseInt(date2.substring(5,7))-12):(parseInt(date2.substring(5,7)))];
	var omonth2_p2 = MONTHS[(parseInt(date2.substring(5,7))+1) > 11?(parseInt(date2.substring(5,7))+1-12):(parseInt(date2.substring(5,7))+1)];

	var oyear2 = date2.substring(0,4);

	layer_pdie.setVisible($("input[value='pdie']").is(":checked"));
	layer_hth_das_info.setVisible($("input[value='hth']").is(":checked"));
	layer_hth_das_view.setVisible($("input[value='hth']").is(":checked"));

	setLegend(layername, date1, date2, num1);

	var maptitle = [];

	if($("input[value='pdie']").is(":checked")){
		

		if(layername == "pdie"){
			maptitle_pdie = "PERINGATAN DINI KEKERINGAN METEOROLOGIS<BR />BERLAKU DASARIAN "+romawi(num1)+" "+omonth1.toUpperCase()+" "+oyear1;

			layer_pdie.getSource().updateParams({
				'LAYERS': 'pdie,prov,kabkot', 
				'date': date1,
				'num': num1
			});
		}
		
		maptitle.push(maptitle_pdie);

		$("#mapprint-pdie").show();
		
		$("#maplegend_pdie").show();
	}else{
		$("#maplegend_pdie").hide();

		$("#mapprint-pdie").hide();
	}

	if($("input[value='hth']").is(":checked")){

		if(layername == "hth"){
			maptitle_hth = "MONITORING HARI TANPA HUJAN BERTURUT-TURUT<BR />PEMUTAKHIRAN DASARIAN "+romawi(num1)+" "+omonth1.toUpperCase()+" "+oyear1;

			layer_hth_das_info.getSource().updateParams({
				'LAYERS': 'kabkot,prov,hth_das_info',
				'date': date1
			});
			
			layer_hth_das_view.getSource().updateParams({
				'LAYERS': 'kabkot,prov,hth_das0,hth_das1,hth_das2,hth_das3,hth_das4,hth_das5,hth_das6',
				'date': date1
			});

			$("#mdlprintout a.indonesia").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-Indonesia.jpg");
			$("#mdlprintout a.balinusa").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-BaliNustra.jpg");
			$("#mdlprintout a.jawa").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-Jawa.jpg");
			$("#mdlprintout a.kalimantan").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-Kalimantan.jpg");
			$("#mdlprintout a.malukupapua").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-MalukuPapua.jpg");
			$("#mdlprintout a.sulawesi").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-Sulawesi.jpg");
			$("#mdlprintout a.sumatera").attr("href", "ftp/HTH_jpg/Das "+num1+" "+omonth1_short+" "+oyear1+"/PetaMonitoringHariTanpaHujan-Sumatera.jpg");

		}

		maptitle.push(maptitle_hth);

		$("#mapprint-hth").show();


		$("#maplegend_hth").show();
	}else{
		$("#maplegend_hth").hide();

		$("#mapprint-hth").hide();
	}


	if(maptitle.length > 0){
		$("#maptitle").show();
		$("#maptitle").html(maptitle.join(", "));
		$("#legendcontainer").show();
	}else{
		$("#maptitle").hide();
		$("#legendcontainer").hide();
	}
	
	
	
	infodetails.setPosition(undefined);

}

function setLegend(layername, date1, date2, num1){
	
	var legendsetting;
	
	switch(layername){
		case "pdie":
			legendsetting = legend_pdie;
			$("#mapannotation").hide();
			legendtext = "Peringatan Dini Iklim";
			break;
		
		case "hth":
			legendsetting = legend_hth_das_view;
			$("#mapannotation").hide();
			legendtext = "Hari Tanpa Hujan";
			break;
	}
	
	var html="<table>";

	html+="<tr><th colspan='2'>"+legendtext+"</th></tr>";
	
	for(var i=0;i<legendsetting.length;i++){
		html+="<tr class='trlegend' layername='"+layername+"' legendindex='"+i+"'><td><img src=\""+legendsetting[i][1]+"\" /></td><td>"+legendsetting[i][2]+"</td></tr>";
	}
	
	html+="</table>";
	
	$("#areacoverage").hide();
	
	$("#maplegend tr").unbind();
	
	$("#maplegend_"+layername).html(html);
	
	if(layername!="titikstationmatahari"){
		$("#maplegend_"+layername+" tr.trlegend").click(function(){
			setAreaCoverage($(this).attr("layername"), $(this).attr("legendindex"), date1, date2, num1);
		});
	}
}

function setAreaCoverage(layername, legendindex, date1, date2, num1){
	$("#mapannotation").hide();
	$("#areacoverage").show();
	$("#areacoverage-content").html("<i>Loading...</i>");
	
	$.post("areacoverage.php?req=getareacoverage", {
		layername:layername,
		legendindex:legendindex,
		date1:date1,
		date2:date2,
		num1:num1
	},function(data){
		if(jQuery.isEmptyObject(data)){
			$("#areacoverage-content").html("Wilayah tidak ditemukan");
		}else{
			var html="";
			for(var i=0;i<data.length;i++){
				html+="<div class='item'>";
				html+="<div class='title'>"+data[i].prov+"</div>";
				html+="<div class='content'>";
				
				for(var j=0;j<data[i].kabkot.length;j++){
				
					html+="<div>"+data[i].kabkot[j]+"</div>";
				
				}
				
				html+="</div>";
				html+="</div>";
			}
			
			$("#areacoverage-content").html(html);
		}
	});
}

function romawi(num){
	switch(Number(num)){
		case 1:
			return "I";
		case 2:
			return "II";
		case 3:
			return "III";
		case 4:
			return "IV";
		case 5:
			return "V";
	}
}