function initMap() {
    let map = L.map('map').setView([46.710, 3.669], 6);
    L.tileLayer('https://{s}.tile.openstreetmap.fr/osmfr/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
    }).addTo(map);
    L.marker([51.5, -0.09]).addTo(map)
        .bindPopup('A pretty CSS3 popup.<br> Easily customizable.')
        .openPopup();
    return map;
}

function initAddrSearch(map) {
    const autocompleteOptions = {
        search: async (query) => {
            if(query.length > 2) {
                const mapCenter = map.getCenter();
                const reqUri = `https://photon.komoot.io/api/?q=${encodeURI(query)}&lat=${mapCenter.lat}&lon=${mapCenter.lng}&limit=20&lang=fr`;
                const source = await fetch(reqUri);
                const data = await source.json();
                return data.features;
            } else {
                return [];
            }
        },
        onSubmit: (res) => {
            const searchInput = document.getElementById('search-addr-autocomplete-input');
            const p = res.properties;
            searchInput.value = `${p.name} - ${p.postcode} ${p.city}, ${p.county}`;
            console.log("moving to");
            console.log(res.geometry.coordinates);
            // We already filtered out the result not having strictly 2 coordinates at item display
            map.setView([res.geometry.coordinates[1],res.geometry.coordinates[0]], 19)
        },
        debounceTime: 300,
        renderResult: (res, props) => {
            const p = res.properties;
            if(p.name && p.postcode && p.city && p.county && res.geometry.coordinates && res.geometry.coordinates.length === 2)
                return `<li ${props}>${p.name} - ${p.postcode} ${p.city}, ${p.county}</li>`;
            else
                return "";
        }
    };
    const autocompleteAddr = new Autocomplete("#search-addr-autocomplete", autocompleteOptions);
    return autocompleteAddr;
}

let map = initMap();
let addrSearch = initAddrSearch(map);