const current_position = {
    latitude: '',
    longitude: ''
};

const input = document.getElementById('address');
const suggestionsContainer = document.createElement('div');
suggestionsContainer.classList.add('autocomplete-suggestions');
input.parentNode.appendChild(suggestionsContainer);

// Inizializziamo il geocoder di Google
const geocoder = new google.maps.Geocoder();

// Funzione per ottenere suggerimenti dagli indirizzi con Geocoding API
async function getGeocodingAutocomplete(inputText) {
    return new Promise((resolve, reject) => {
        geocoder.geocode({ 'address': inputText }, function(results, status) {
            if (status === google.maps.GeocoderStatus.OK) {
                resolve(results);
            } else {
                reject(status);
            }
        });
    });
}

// Funzione per aggiornare i suggerimenti nella dropdown
function updateSuggestions(suggestions) {
    suggestionsContainer.innerHTML = "";
    suggestions.forEach((place) => {
        const item = document.createElement("div");
        item.classList.add("autocomplete-suggestion");
        item.textContent = place.formatted_address;
        item.onclick = () => selectPlace(place);
        suggestionsContainer.appendChild(item);
    });
}

// Funzione per gestire la selezione di un luogo
function selectPlace(place) {
    input.value = place.formatted_address;

    const latitude = place.geometry.location.lat();
    const longitude = place.geometry.location.lng();

    let keyLocalstorageLatitude = document.getElementById("indirizzo_appartamento_coordinates_latitude").dataset.keyLocalstorage;
    if(checkVar(keyLocalstorageLatitude)){
        if(checkVar(latitude)){
            localStorage.setItem(keyLocalstorageLatitude, latitude);
        }
    }

    let keyLocalstorageLongitude = document.getElementById("indirizzo_appartamento_coordinates_longitude").dataset.keyLocalstorage;
    if(checkVar(keyLocalstorageLongitude)){
        if(checkVar(longitude)){
            localStorage.setItem(keyLocalstorageLongitude, longitude);
        }
    }

    suggestionsContainer.innerHTML = "";
}

// Ascoltatore di eventi per l'input dell'utente
input.addEventListener("input", async function () {
    const inputValue = this.value;
    if (inputValue.length > 2) {
        try {
            const suggestions = await getGeocodingAutocomplete(inputValue);
            updateSuggestions(suggestions);
        } catch (error) {
            console.error("Errore nella richiesta Geocoding API:", error);
        }
    } else {
        suggestionsContainer.innerHTML = "";
    }
});

input.addEventListener("keydown", function(event) {
    if (event.keyCode === 13) {
        event.preventDefault();
    }
});


function getCurrentGeoPosition() {
    if (navigator.geolocation) {
        let options = {
            enableHighAccuracy: true,
            timeout: 3000,
            maximumAge: 0
        };

        navigator.geolocation.getCurrentPosition(getCurrentGeoPositionSuccess, getCurrentGeoPositionError, options);
    } else {
        alert('La geolocalizzazione non è supportata dal tuo browser');
    }
}

function getCurrentGeoPositionSuccess(pos) {
    if($('#address').val() == '' || $('#address').val() == undefined || $('#address').val() == null || $('#address').val() == ' ') {
        let crd = pos.coords;
        current_position.latitude = crd.latitude;
        current_position.longitude = crd.longitude;

        $('#latitude').val(current_position.latitude);
        $('#longitude').val(current_position.longitude);

        setAddressResearchNameByLatLng(current_position.latitude, current_position.longitude);
    }
    // createGoogleMap(true);
}

function getCurrentGeoPositionError(err) {
    console.warn(`ERROR(${err.code}): ${err.message}`);
}

function setAddressResearchNameByLatLng(lat, lng) {
    geocoder = new google.maps.Geocoder()

    let latlng = new google.maps.LatLng(lat, lng);

    geocoder.geocode({
        'latLng': latlng
    }, function (results, status) {
        if (status == "OK" && results.length > 0) {
            $('#address').val(results[0].formatted_address);
        }
    });
}