/*
 * Init search engine and index.
 */
async function get_json(url) {
    try {
        const response = await fetch(url);
        if (!response.ok) {
            throw new Error(`Response status: ${response.status}`);
        }

        const json = await response.json();
        console.log(json);

        return json;
    } catch (error) {
        console.error(error.message);
    }
}

async function fuse_init() {
    let [idx_json, keys_json] = await Promise.all([
        get_json('/js/fuse_index.json'),
        get_json('/js/fuse_keys.json')
    ]);

    const fuseOptions = {
        // isCaseSensitive: false,
        // includeScore: false,
        // ignoreDiacritics: false,
        // shouldSort: true,
        // includeMatches: false,
        // findAllMatches: false,
        // minMatchCharLength: 1,
        // location: 0,
        // threshold: 0.6,
        // distance: 100,
        // useExtendedSearch: false,
        // ignoreLocation: false,
        // ignoreFieldNorm: false,
        // fieldNormWeight: 1,
        keys: keys_json,
    };
    return new Fuse(idx_json, fuseOptions);
}