// Dashboard functionality
// loadSystemInfo() and updateDiskChart() live in data-loader.js — that version
// uses waitForDashboardElements() so it doesn't fire before the dashboard HTML
// is in the DOM. Defining them here too overrode the safer version and produced
// the spurious "Disk chart elements not found" errors when called from non-dashboard pages.

// Load installed apps and render icon grid on dashboard
async function loadInstalledApps() {
  if (!window.apps || window.apps.length === 0) {
    try {
      const response = await fetch('/data/apps/generated/apps.json', { cache: 'no-store' });
      const data = await response.json();
      window.apps = data.apps || [];
    } catch (e) {
      return;
    }
  }
  renderInstalledApps();
}

function renderInstalledApps() {
  const section = document.getElementById('frontpage-apps-section');
  const container = document.getElementById('frontpage-apps-container');
  if (!section || !container) return;

  const installed = (window.apps || []).filter(a => a.installed);
  if (installed.length === 0) return;

  container.innerHTML = installed.map(app => createInstalledAppCard(app)).join('');
  section.style.display = '';

  populateDashboardServiceButtons(installed);
}

function createInstalledAppCard(app) {
  const appName = app.command.split(' ').pop();
  let icon = app.icon || '/core/icons/apps/default.svg';
  if (!icon.startsWith('/')) icon = '/' + icon;
  const shortName = app.name.split(' - ')[0].trim();

  return `
    <div class="frontpage-app-tile" onclick="window.location.href='/app/${appName}'">
      <div class="frontpage-app-icon-wrap">
        <img src="${icon}" alt="${shortName}" onerror="this.src='/core/icons/apps/default.svg'">
        <div class="frontpage-app-overlay" id="frontpage-overlay-${appName}" onclick="event.stopPropagation()"></div>
      </div>
      <span class="frontpage-app-name">${shortName}</span>
    </div>
  `;
}

async function populateDashboardServiceButtons(installedApps) {
  let services = [];

  if (window.serviceButtons) {
    if (window.serviceButtons.services.length === 0) await window.serviceButtons.loadServices();
    services = window.serviceButtons.services;
  } else {
    try {
      const res = await fetch('/data/apps/generated/apps-services.json', { cache: 'no-store' });
      const data = await res.json();
      services = data.services || [];
    } catch (e) {
      return;
    }
  }

  const proto = s => ['http', 'https'].includes((s.protocol || '').toLowerCase()) ? s.protocol.toLowerCase() : 'http';

  installedApps.forEach(app => {
    const appName = app.command.split(' ').pop();
    const shortName = app.name.split(' - ')[0].trim();
    const overlay = document.getElementById(`frontpage-overlay-${appName}`);
    if (!overlay) return;

    const appServices = services.filter(s => s.app === appName && s.buttonEnabled === true);

    // Multi-button render via the shared expandServiceLinks() helper.
    const serviceButtons = appServices.flatMap(s =>
      window.expandServiceLinks(s).map(({ url, label }) => `
        <a href="${url}" target="_blank" rel="noopener noreferrer" class="frontpage-overlay-btn" onclick="event.stopPropagation()">
          <svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5">
            <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"></path>
            <polyline points="15 3 21 3 21 9"></polyline>
            <line x1="10" y1="14" x2="21" y2="3"></line>
          </svg>
          ${label}
        </a>
      `)
    ).filter(Boolean).join('');

    overlay.innerHTML = serviceButtons + `<button class="frontpage-app-manage-btn" onclick="event.stopPropagation(); navigateToApp('${appName}')">${shortName}</button>`;
  });
}

// Setup event listeners
function setupEventListeners() {
  setupMobileMenu();
  loadInstalledApps();
}

// Navigate to app page using SPA router
function navigateToApp(appName) {
  // Use proper SPA navigation to the app page
  if (window.librePortalSPA && typeof window.librePortalSPA.navigate === 'function') {
    window.librePortalSPA.navigate(`/app/${appName}`);
  } else if (window.navigateToRoute && typeof window.navigateToRoute === 'function') {
    window.navigateToRoute(`app/${appName}`);
  } else {
    // Fallback to direct navigation
    window.location.href = `/app/${appName}`;
  }
}

// Filter apps by search term (removed - not used in dashboard)
function filterApps(searchTerm) {
  //console.log('Filter apps functionality removed from dashboard');
}

// Filter apps by category (removed - not used in dashboard)
function filterAppsByCategory(category) {
  //console.log('Filter apps by category functionality removed from dashboard');
}

// Populate category filter (removed - not used in dashboard)
function populateCategoryFilter() {
  //console.log('Category filter population removed from dashboard');
}