// Note: This example requires that you consent to location sharing when
// prompted by your browser. If you see the error "The Geolocation service
// failed.", it means you probably did not give permission for the browser to
// locate you.

let map, infoWindow;

function initMap() {
  map = new google.maps.Map(document.getElementById("map"), {
    center: { lat: 37.5642135, lng: 127.0016985 },
    zoom: 10,
  });
  infoWindow = new google.maps.InfoWindow();

  const locationButton = document.createElement("button");

  locationButton.textContent = "위치 조회 하기";
  locationButton.classList.add("custom-map-control-button");
  map.controls[google.maps.ControlPosition.TOP_CENTER].push(locationButton);
  locationButton.addEventListener("click", () => {
    // Try HTML5 geolocation.
    if (navigator.geolocation) {
      navigator.geolocation.getCurrentPosition(
        (position) => {
          const pos = {
            lat: position.coords.latitude,
            lng: position.coords.longitude,
          };
          infoWindow.setPosition(pos);
          infoWindow.setContent("위치를 찾았습니다.");
          infoWindow.open(map);
          map.setCenter(pos);
          document.getElementById("lat").innerHTML = pos.lat;
          document.getElementById("lng").innerHTML = pos.lng;
         // console.log(dfs_xy_conv("toXY",pos.lat,pos.lng));

        },
        () => {
          handleLocationError(true, infoWindow, map.getCenter());
        }
      );
    } else {
      // Browser doesn't support Geolocation
      handleLocationError(false, infoWindow, map.getCenter());
    }
  });
}

function handleLocationError(browserHasGeolocation, infoWindow, pos) {
  infoWindow.setPosition(pos);
  infoWindow.setContent(
    browserHasGeolocation
      ? "Error: 위치 조회 서비스가 실패하였습니다."
      : "Error: 브라우저가 위치 조회 기능을 지원하지 않습니다."
  );
  infoWindow.open(map);
}