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_pem;
var layer_pea;
var layer_titikstationmatahari;

var source_pem;
var source_pea;
var source_titikstationmatahari;

var legend_pem = [
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,0", "0 - 1 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,1", "1 - 2 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,2", "2 - 3 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,3", "3 - 4 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,4", "4 - 5 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,5", "5 - 6 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,6", "6 - 7 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,7", "7 - 8 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,8", "8 - 9 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,9", "9 - 10 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,10", "10 - 11 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,11", "11 - 12 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,12", "12 - 13 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pem,13", "13 - 14 kwh/m<sup>2</sup>"]
];

var legend_pea = [
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,0", "0 - 1 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,1", "1 - 2 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,2", "2 - 3 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,3", "3 - 4 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,4", "4 - 5 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,5", "5 - 6 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,6", "6 - 7 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,7", "7 - 8 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,8", "8 - 9 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,9", "9 - 10 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,10", "10 - 11 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,11", "11 - 12 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,12", "12 - 13 kwh/m<sup>2</sup>"],
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=pea,13", "13 - 14 kwh/m<sup>2</sup>"]
];

var legend_titikstationmatahari = [
	["", "https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg&mode=legendicon&icon=titikstationmatahari,0", "Titik Stasiun Pemantau Energi Matahari"],
];


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_pem = new ol.source.ImageWMS({url: 'https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg'});
	layer_pem = new ol.layer.Image({source:source_pem, visible:false, opacity:0.6});
	map.addLayer(layer_pem);
	
	source_pea = new ol.source.ImageWMS({url: 'https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg'});
	layer_pea = new ol.layer.Image({source:source_pea, visible:false, opacity:0.6});
	map.addLayer(layer_pea);
	
	source_titikstationmatahari = new ol.source.ImageWMS({url: 'https://cews.bmkg.go.id/cgi-bin/mapserv?map=bmkg'});
	layer_titikstationmatahari = new ol.layer.Image({source:source_titikstationmatahari, visible:false, opacity:0.6});
	map.addLayer(layer_titikstationmatahari);
	

	//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='hth']").prop('checked', true);
	switchLayer({
		layername:"pem",
		date1:"2018-09-01"
	});
	
		
	//init info details
	
	map.on('singleclick', function (e) {
		var viewResolution = mapview.getResolution();
		
		switch(cur_active_layer){
			case "pem":
				var url = source_pem.getFeatureInfoUrl(e.coordinate, viewResolution, 'EPSG:3857', {'INFO_FORMAT': 'text/html'});
				break;
				
			case "pea":
				var url = source_pea.getFeatureInfoUrl(e.coordinate, viewResolution, 'EPSG:3857', {'INFO_FORMAT': 'text/html'});
				break;
			
			case "titikstationmatahari":
				var url = source_titikstationmatahari.getFeatureInfoUrl(e.coordinate, viewResolution, 'EPSG:3857', {'INFO_FORMAT': 'text/html'});
				break;
			
		}
		
		if (url) {
			fetch(url).then(function (response) {
				if (!response.ok) {
					throw Error(response.statusText);
				}
				
				return response.text();
			}).then(function (html) {
				if(html.trim()==""){
					infodetails.setPosition(undefined);
				}else{
					$("#infodetails-content").html(html);
					infodetails.setPosition(e.coordinate);
				}
			}).catch(function(e){
				infodetails.setPosition(undefined);
				console.log("no data");
			});
		}
		
	});


	//print out

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



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_pem.setVisible(false);
	layer_titikstationmatahari.setVisible(false);
	layer_pea.setVisible(false);
	
	$("#mapprint").hide();

	$("#maptitle").show();

	switch(layername){
		
		case "pem":
			layer_pem.getSource().updateParams({
				'LAYERS': 'pem,prov,kabkot', 
				'date': date1
			});
			
			layer_pem.setVisible(true);
			$("#maptitle").html("PETA SEBARAN POTENSI ENERGI MATAHARI<BR />PERIODE 5 TAHUN");
			break;
		
		case "pea":
			layer_pea.getSource().updateParams({
				'LAYERS': 'pea,prov,kabkot', 
				'date': date1
			});
			
			layer_pea.setVisible(true);
			$("#maptitle").html("PETA SEBARAN POTENSI ENERGI ANGIN<BR />PERIODE 5 TAHUN");
			break;
		
		case "titikstationmatahari":
			layer_titikstationmatahari.getSource().updateParams({
				'LAYERS': 'titikstationmatahari,prov,kabkot'
			});
			
			layer_titikstationmatahari.setVisible(true);
			$("#maptitle").html("PETA SEBARAN TITIK STASIUN PEMANTAU<br />ENERGI MATAHARI");
			break;
	}
	
	setLegend(layername, date1, date2, num1);
	
	infodetails.setPosition(undefined);
}


function setLegend(layername, date1, date2, num1){
	
	var legendsetting;
	
	switch(layername){
		case "pem":
			legendsetting = legend_pem;
			$("#mapannotation").html("Disclaimer: Data dari tahun 2011-2019");
			$("#mapannotation").show();
			break;
		case "pea":
			legendsetting = legend_pea;
			$("#mapannotation").html("Disclaimer: Data dari tahun 2011-2019");
			$("#mapannotation").show();
			break;
		case "titikstationmatahari":
			legendsetting = legend_titikstationmatahari;
			$("#mapannotation").hide();
			break;
	}
	
	var html="<table>";
	
	for(var i=0;i<legendsetting.length;i++){
		html+="<tr 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").html(html);
	
	if(layername!="titikstationmatahari"){
		$("#maplegend tr").click(function(){
			setAreaCoverage($(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 showSubInfo(selector){

	$("#mdlsubinfo .modal-body").html("");

	var data = selector.attr("data");
	var target = selector.attr("target");
	
	var title = "";
	var src = "";

	switch(data){
		case "riwayatpenyinaran":
			title = "Riwayat Penyinaran Matahari";
			src = "ftp/Isi_dari_titik_energi_matahari/LPM/" + target +".png";
			break;
		case "potensienergi":
			title = "Potensi Energi Matahari";
			src = "ftp/Isi_dari_titik_energi_matahari/Potensi Energi Matahari/" + target +".png";
			break;
		case "tutupanawan":
			title = "Persentase Tutupan Awan";
			src = "ftp/Isi_dari_titik_energi_matahari/grafik awan/" + target +".png";
			break;
		case "suhu":
			title = "Suhu Diurnal";
			src = "ftp/Isi_dari_titik_energi_matahari/Suhu/" + target +".png";
			break;
		case "wind":
			title = "Wind Rose";
			src = "ftp/Isi_dari_titik_energi_matahari/Angin/" + target +".png";
			break;
		case "beneningan":
			title = "Indeks Kebeningan";
			src = "ftp/Isi_dari_titik_energi_matahari/Indeks Kebeningan/" + target +".png";
			break;
	}

	$("#mdlsubinfo").modal("show");
	$("#mdlsubinfo .modal-title").html(title);
	$("#mdlsubinfo .modal-body").html("<a data-bs-toggle='tooltip' title='Klik untuk buka di tab baru' href='"+src+"' target='blank' style='cursor:pointer'><img class=\"w-100\" src=\"" + src + "\" /></a>");
}