function drop_fields(results) {
    results.forEach(e => {
        delete e.licence;
        delete e.place_rank;
        delete e.importance;
        delete e.boundingbox;
    });
    return results
}

export function nominatim_get_data(id: string, bb: string[][] | null = null): Promise<any> {
    if (!id) return Promise.resolve([])

    const url = new URL("https://nominatim.openstreetmap.org/search");
    url.searchParams.append('format', 'jsonv2')
    url.searchParams.append('q', id)
    url.searchParams.append('limit', '20')
    if (bb) {
        url.searchParams.append('viewbox', `${bb[0][0]},${bb[0][1]},${bb[1][0]},${bb[1][1]}`)
        url.searchParams.append('bounded', `1`)
    }
    return fetch(url).then((res) => {
        if (!res.ok) throw new Error("Nominatim Error")
        return res.json().then(r => drop_fields(r))
    })
}