// Load PDS data and populate table
document.addEventListener('DOMContentLoaded', function() {
    // Check if mobile and show popup
    if (window.innerWidth < 768) {
        document.getElementById('mobile-popup').style.display = 'flex';
    }
    
    // Close mobile popup button
    document.getElementById('close-mobile-popup').addEventListener('click', function() {
        document.getElementById('mobile-popup').style.display = 'none';
    });
    
    // Search input
    document.getElementById('search-input').addEventListener('input', filterData);
    
    // Invite filter radios
    document.querySelectorAll('input[name="invite-filter"]').forEach(radio => {
        radio.addEventListener('change', filterData);
    });
    
    loadPDSData();
});

// Store all PDS data globally for filtering
let allPDSData = [];

async function loadPDSData() {
    const loading = document.getElementById('loading');
    const content = document.getElementById('content');
    const tableBody = document.getElementById('table-body');
    const noData = document.getElementById('no-data');
    const serverCount = document.getElementById('server-count');

    try {
        const response = await fetch('./pdslist.json');
        const pdsData = await response.json();
        allPDSData = pdsData; // Store for filtering

        // Hide loading
        loading.style.display = 'none';
        content.style.display = 'block';

        if (pdsData.length === 0) {
            noData.style.display = 'block';
            return;
        }

        // Update server count
        serverCount.textContent = pdsData.length;

        // Populate table
        pdsData.forEach(pds => {
            const row = createTableRow(pds);
            tableBody.appendChild(row);
        });
        
        // Set initial filtered count to total
        document.getElementById('filtered-count').textContent = pdsData.length;

    } catch (error) {
        console.error('Error loading PDS data:', error);
        loading.innerHTML = '<p style="color: red;">Error loading database. Please check console.</p>';
    }
}

function filterData() {
    const searchTerm = document.getElementById('search-input').value.toLowerCase();
    const inviteFilter = document.querySelector('input[name="invite-filter"]:checked').value;
    
    const tableBody = document.getElementById('table-body');
    const rows = tableBody.querySelectorAll('tr');
    let visibleCount = 0;
    
    rows.forEach((row, index) => {
        const pds = allPDSData[index];
        if (shouldShowRow(pds, searchTerm, inviteFilter)) {
            row.style.display = '';
            visibleCount++;
        } else {
            row.style.display = 'none';
        }
    });
    
    // Update the filtered count
    document.getElementById('filtered-count').textContent = visibleCount;
}

function shouldShowRow(pds, searchTerm, inviteFilter) {
    // Apply search filter
    const searchMatch = !searchTerm || 
        pds.url.toLowerCase().includes(searchTerm) ||
        (pds.supportedHandles && pds.supportedHandles.some(h => h.toLowerCase().includes(searchTerm))) ||
        (pds.maintainer && pds.maintainer.toLowerCase().includes(searchTerm)) ||
        (pds.contactEmail && pds.contactEmail.toLowerCase().includes(searchTerm));
    
    // Apply invite filter
    const inviteMatch = inviteFilter === 'all' ||
        (inviteFilter === 'yes' && pds.inviteCodeRequired) ||
        (inviteFilter === 'no' && !pds.inviteCodeRequired);
    
    return searchMatch && inviteMatch;
}

function createTableRow(pds) {
    const row = document.createElement('tr');
    
    // URL
    const urlCell = document.createElement('td');
    const urlLink = document.createElement('p');
    // sanitize URL by removing any '@' characters
    const safeUrl = pds.url ? pds.url.replace(/@/g, '') : '';
    urlLink.href = safeUrl;
    urlLink.target = '_blank';
    urlLink.textContent = safeUrl;
    urlCell.appendChild(urlLink);
    row.appendChild(urlCell);
    
    // Handles
    const handlesCell = document.createElement('td');
    if (pds.supportedHandles && pds.supportedHandles.length > 0) {
        handlesCell.textContent = pds.supportedHandles.join(', ');
    } else {
        handlesCell.textContent = 'N/A';
    }
    row.appendChild(handlesCell);
    
    // Maintainer
    const maintainerCell = document.createElement('td');
    if (pds.maintainer) {
        const link = document.createElement('a');
        // sanitize maintainer by removing any '@' characters before using in URL and display
        const safeMaintainer = pds.maintainer.replace(/@/g, '');
        link.href = `https://madebydanny.uk/followonbsky.html?did=${encodeURIComponent(safeMaintainer)}`;
        link.target = '_blank';
        link.textContent = safeMaintainer;
        maintainerCell.appendChild(link);
    } else {
        maintainerCell.textContent = '—';
    }
    row.appendChild(maintainerCell);
    
    // Server Location
    const locationCell = document.createElement('td');
    if (pds.serverLocation) {
        locationCell.textContent = pds.serverLocation;
    } else {
        locationCell.textContent = '—';
    }
    row.appendChild(locationCell);
    
    // Contact Email
    const emailCell = document.createElement('td');
    if (pds.contactEmail) {
        const link = document.createElement('a');
        link.href = `mailto:${pds.contactEmail}`;
        link.textContent = pds.contactEmail;
        emailCell.appendChild(link);
    } else {
        emailCell.textContent = '—';
    }
    row.appendChild(emailCell);
    
    // Invite Code Required
    const inviteCell = document.createElement('td');
    inviteCell.textContent = pds.inviteCodeRequired ? 'Yes' : 'No';
    row.appendChild(inviteCell);
    
    // Terms of Service
    const tosCell = document.createElement('td');
    if (pds.tosUrl) {
        const link = document.createElement('a');
        link.href = pds.tosUrl;
        link.target = '_blank';
        link.rel = 'noopener noreferrer';
        link.textContent = 'Link';
        tosCell.appendChild(link);
    } else {
        tosCell.textContent = '—';
    }
    row.appendChild(tosCell);
    
    // Privacy Policy
    const privacyCell = document.createElement('td');
    if (pds.privacyUrl) {
        const link = document.createElement('a');
        link.href = pds.privacyUrl;
        link.target = '_blank';
        link.rel = 'noopener noreferrer';
        link.textContent = 'Link';
        privacyCell.appendChild(link);
    } else {
        privacyCell.textContent = '—';
    }
    row.appendChild(privacyCell);
    
    return row;
}