function initMap() {
    var map = new google.maps.Map(document.getElementById('harta'), {
        zoom: 7,
        center: {lat: 46.095968, lng: 24.915397}
    });
    var geocoder = new google.maps.Geocoder;
    var infowindow = new google.maps.InfoWindow;

    document.getElementById('gasireLocatie1').addEventListener('click', function() {
        geocodareAdresa(geocoder, map, infowindow, 'adresa1');
    });

    document.getElementById('gasireLocatie2').addEventListener('click', function() {
        geocodareAdresa(geocoder, map, infowindow, 'adresa2');
    });

    document.getElementById('calculeazaDistanta').addEventListener('click', function() {
        calculeazaDistanta(geocoder, map, infowindow);
    });
}

function geocodareAdresa(geocoder, map, infowindow, adresa) {
    var textAdresa = document.getElementById(adresa).value;
    geocoder.geocode({'address': textAdresa}, function(results, status) {
        if (status === 'OK') {
            if (results[0]) {
                map.setZoom(11);
                map.setCenter(results[0].geometry.location);
                var marker = new google.maps.Marker({
                    map: map,
                    position: results[0].geometry.location
                });
                infowindow.setContent(results[0].formatted_address);
                infowindow.open(map, marker);
            } else {
                window.alert('Niciun rezultat pentru locaţia introdusă!');
            }
        } else {
            window.alert('Geocodarea a eşuat: ' + status);
        }
    });
}

function calculeazaDistanta(geocoder, map, infowindow)
{
    var adresa1 = document.getElementById('adresa1').value;
    var adresa2 = document.getElementById('adresa2').value;
    var locatie1, locatie2;
    var marker1, marker2;
    geocoder.geocode({'address': adresa1}, function(results, status) {
        if (status === 'OK') {
            if (results[0]) {
                marker1 = new google.maps.Marker({
                    map: map,
                    position: results[0].geometry.location
                });
                locatie1 = results[0].geometry.location;
                infowindow.setContent(results[0].formatted_address);
                infowindow.open(map, marker1);

                geocoder.geocode({'address': adresa2}, function(results, status) {
                    if (status === 'OK') {
                        if (results[0]) {
                            marker2 = new google.maps.Marker({
                                map: map,
                                position: results[0].geometry.location
                            });
                            locatie2 = results[0].geometry.location;
                            infowindow.setContent(results[0].formatted_address);
                            infowindow.open(map, marker2);

                            var service = new google.maps.DistanceMatrixService();
                            service.getDistanceMatrix({
                                origins: [locatie1],
                                destinations: [locatie2],
                                travelMode: google.maps.TravelMode.DRIVING,
                                unitSystem: google.maps.UnitSystem.METRIC,
                                avoidHighways: false,
                                avoidTolls: false
                            }, function (response, status) {
                                if (status == google.maps.DistanceMatrixStatus.OK && response.rows[0].elements[0].status != "ZERO_RESULTS") {
                                    var distance = response.rows[0].elements[0].distance.text;
                                    var duration = response.rows[0].elements[0].duration.text;
                                    var dvDistance = document.getElementById("distanta");
                                    dvDistance.innerHTML = "";
                                    dvDistance.innerHTML += "Distanţă în linie dreaptă: " +
                                        Math.round(google.maps.geometry.spherical.computeDistanceBetween(locatie1, locatie2) / 1000)
                                        + " km<br />";
                                    dvDistance.innerHTML += "Distanţă pe şosea: " + distance + "<br />";
                                   // dvDistance.innerHTML += "Durată drum: " + duration;
                                    dvDistance.style.display = "block";

                                } else {
                                    alert("Imposibil de găsit distanţa de parcurs.");
                                }
                            });
                        } else {
                            window.alert('Niciun rezultat pentru locaţia introdusă!');
                        }
                    } else {
                        window.alert('Geocodarea a eşuat: ' + status);
                    }
                });
            } else {
                window.alert('Niciun rezultat pentru locaţia introdusă!');
            }
        } else {
            window.alert('Geocodarea a eşuat: ' + status);
        }
    });
}