function populateSearchResults(results, selectedOption) {
    const searchResultsContainer = document.getElementById('searchResults');
    searchResultsContainer.innerHTML = '';

    if (results.length === 0) {
        searchResultsContainer.innerHTML = '<p>Nessun risultato trovato</p>';
        return;
    }

    results.forEach(item => {
        const div = document.createElement('div');
        div.className = 'search-result';
        div.innerHTML = `
            <div>
                <h3>${item.nome}</h3>
                <p>Palina: ${item.palina}, Target ID: ${item.targetID}</p>
            </div>
        `;

        div.addEventListener('click', () => {
            const url = `fermata.html?palina=${encodeURIComponent(item.palina)}&targetID=${encodeURIComponent(item.targetID)}&selectedOption=${encodeURIComponent(selectedOption)}`;
            window.location.href = url;
        });

        searchResultsContainer.appendChild(div);
    });
}

function filterOptions(query, data) {
    const q = query.toLowerCase();
    return data.filter(item =>
        (item.nome || '').toLowerCase().includes(q) ||
        (item.palina || '').toLowerCase().includes(q) ||
        (item.targetID || '').toLowerCase().includes(q)
    );
}


let allOptions = [];
let currentSelectedOption = '';

const searchBar = document.getElementById('searchBar');
searchBar.addEventListener('input', function() {
    const query = searchBar.value;
    const filteredOptions = filterOptions(query, allOptions);
    populateSearchResults(filteredOptions, currentSelectedOption);
});

document.getElementById('bacino').addEventListener('change', function(event) {
    const selectedOption = event.target.value;
    currentSelectedOption = selectedOption;

    if (!selectedOption) {
        allOptions = [];
        document.getElementById('searchResults').innerHTML = '';
        return;
    }

    const resultsContainer = document.getElementById('searchResults');
    resultsContainer.innerHTML = '<p>Caricamento lista fermate in corso...</p>';

    fetch(`http://localhost:3005/bacino?selectedOption=${selectedOption}`)
        .then(res => res.json())
        .then(data => {
            allOptions = data;
            populateSearchResults(allOptions, selectedOption);
        })
        .catch(err => {
            resultsContainer.innerHTML = '<p>Errore nel caricamento delle fermate.</p>';
            console.error('Errore:', err);
        });
});