document.addEventListener("DOMContentLoaded", () => {
    var mymap = L.map("mymap").setView([38.919, 139.828], 17);
    L.tileLayer('https://{s}.tile.osm.org/{z}/{x}/{y}.png', {
	attribution:
	'&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
    }).addTo(mymap);
    
    var gpsmarker = L.marker(mymap.getCenter()).addTo(mymap);
    gpsmarker.bindPopup("START").openPopup();

    var nTrial = 10;
    var watchId = null;
    var point = 0;
    let judge = [];
    let comment = [];
    var titen = [];
    var marker = [];
    var image = [];
      var csvfile = "latlng.csv";
    
    
    
     function putValues(row) {
	for (let key of Object.keys(row)) {
	}
    }
    function init(){
	fetch(csvfile).
	    then((resp) => {
		if (resp.ok) return resp.text();
	    }).then((txt) => {
		let csv = new CSV(txt,{header:true}).parse();
		for (let x of csv){
		    putValues(x);
		    console.log(x);
		    let p= L.latLng(x.lat,x.lng);
		    image.push(x.image)
		    titen.push(p);
		    comment.push(x.comment);
		    marker.push(L.marker(p).bindPopup(x.image).addTo(mymap));
		}
	    });;
    }
    init();
    
    
    
    
    if (localStorage.getItem('sengoku')!=0){
	let img = document.getElementById("image");
	img.src = "image/sengoku.png"
    };
   
    //GPSの取得に関するコード
    function stopGPS() {
	console.log("watchId="+watchId);
	if (watchId != null) {
	    navigator.geolocation.clearWatch(watchId);
	    gpsmarker.setPopupContent("止めました");
	}
	watchId = null;
    }
    function tryWatchGPS() {
	stopGPS();
	watchId = navigator.geolocation.watchPosition(
	    onSuccess,onError,{
		maximumAge: 0, timeout: 3000, enableHighAccuracy: true});
    }
    function onSuccess(pos) {
	var latlng = L.latLng([pos.coords.latitude, pos.coords.longitude]);
	mymap.panTo(latlng);
	console.log(latlng);
	gpsmarker.setLatLng(latlng).setPopupContent(
	    "ここは lat="+latlng.lat+", lng="+latlng.lng+"です"
	).openPopup();
	for (var i in titen) {
		if (latlng.distanceTo(titen[i]) < 30) {
			if (!judge[i]){
				judge[i] = true;
				let img = document.getElementById(`image${i}`);
		    img.src = "image/sengoku.png";
		    marker[i].setIcon(geticon).setPopupContent(comment[i]);
		}
	    }
	}

    }
    function onError(err) {
	restN = "あと"+(--nTrial)+"回試行します";
	gpsmarker.setPopupContent("捕捉失敗:"+restN).openPopup();
	if (nTrial <= 0) {
	    navigator.geolocation.clearWatch(watchId);
	}
    }
    
    //スタンプゲットの判定
    function stampget(){
	let img = document.getElementById("image");
	let sengoku = localStorage.getItem('sengoku')
	if (sengoku == 0) {
	    img.src = "image/sengoku.png";
	    localStorage.setItem('sengoku',1);
	}
    }
    function resetstamp() {
	let img = document.getElementById("image");
	localStorage.removeItem('sengoku');
	localStorage.setItem('sengoku',0);
	img.src = "image/img.png";
    }
    //マップクリックで移動できるようにする
    mymap.options.singleClickTimeout = 250;
    mymap.on('singleclick', function(e) {
	if (true){
	    latlng = L.latLng(e.latlng);
	    gpsmarker.setLatLng(e.latlng);
	    mymap.panTo(e.latlng);
	    console.log(e.latlng);
	    gpsmarker.setLatLng(e.latlng).setPopupContent(
		"lat="+latlng.lat+", lng="+latlng.lng+""
	    ).openPopup();
	}
	
	for (var i in titen) {
	    if (latlng.distanceTo(titen[i]) < 30) {
		if (!judge[i]){
		    judge[i] = true;
		    let img = document.getElementById(`image${i}`);
		    img.src = "image/sengoku.png";
		    marker[i].setIcon(geticon).setPopupContent(comment[i]);
		}
	    }
	}
    });
		

    
    document.getElementById("start").addEventListener("click", tryWatchGPS);
    document.getElementById("stop").addEventListener("click", stopGPS);
    document.getElementById("reset").addEventListener("click", resetstamp);
}, false);