/**
 * pc-live  |  Desktop – boot, icon grid, clock, message router
 */

/* ── NUI fetch helper ───────────────────────────────────── */
async function fetchNui(event, data = {}) {
  try {
    const resp = await fetch(`https://pc-live/${event}`, {
      method:  'POST',
      headers: { 'Content-Type': 'application/json' },
      body:    JSON.stringify(data),
    });
    return resp.ok ? await resp.json() : null;
  } catch {
    return null;
  }
}

/* ── State ──────────────────────────────────────────────── */
const Desktop = (() => {
  let _session     = null;
  let _clockTimer  = null;
  let _installedApps = [];

  const APP_META = {
    'pc.browser':       { name: 'Browser',            icon: '🌐', open: () => BrowserApp.open()         },
    'pc.mail':          { name: 'Mail',               icon: '✉',  open: () => MailApp.open()            },
    'pc.addressbook':   { name: 'Adressbuch',         icon: '👤', open: () => AddressBookApp.open()     },
    'pc.store':         { name: 'Software Store',     icon: '🛒', open: () => StoreApp.open()           },
    'pc.parkuhr':       { name: 'Parkuhr Dashboard',  icon: '🅿', open: () => ParkuhrApp.open()         },
    'pc.ic_verwaltung':      { name: 'IC-Verwaltung',          icon: '🏛', open: () => ICVerwaltungApp.open()        },
    'pc.gesetzbuch':         { name: 'Gesetzbuch',             icon: '📖', open: () => GesetzbuchApp.open()         },
    'pbs.dashboard':         { name: 'PBS Dashboard',          icon: '📞', open: () => PBSDashboardApp.open()          },
    'pc.webhosting':         { name: 'Webhosting',             icon: '🌍', open: () => WebhostingApp.open()            },
    'pc.bleeter':            { name: 'Bleeter',                icon: '🐦', open: () => BleeterApp.open()               },
    'pc.bleeteradmin':       { name: 'Bleeter-Verwaltung',     icon: '🛠', open: () => BleeterAdminApp.open()          },
  };

  /* ── Boot sequence ────────────────────────────────────── */
  function boot(session) {
    _session = session;
    MailApp.initMailboxes(session.sharedMailboxes || [], session.personalAddress || '',
                          session.personalSignature || '');
    // Freigeschaltete Postfächer nachladen, damit die ✕-Knöpfe stimmen.
    MailApp.refreshMailboxes();

    // Apply accent color
    if (session.accentColor) {
      document.documentElement.style.setProperty('--accent', session.accentColor);
    }

    const app       = document.getElementById('app');
    const bootEl    = document.getElementById('boot-screen');
    const fill      = document.getElementById('boot-bar-fill');
    const desktopEl = document.getElementById('desktop');

    // Set labels in titlebar and boot screen
    const label = session.pcLabel || 'Terminal';
    const pcLabel     = document.getElementById('pc-label');
    const pcBootLabel = document.getElementById('pc-boot-label');
    if (pcLabel)     pcLabel.textContent     = label;
    if (pcBootLabel) pcBootLabel.textContent = label;

    app.classList.add('visible');

    // Animate progress bar
    const duration = 2500;
    fill.style.transition = `width ${duration}ms linear`;
    requestAnimationFrame(() => { fill.style.width = '100%'; });

    setTimeout(() => {
      bootEl.classList.add('fade-out');
      setTimeout(() => {
        bootEl.style.display = 'none';
        desktopEl.classList.add('visible');
        startClock();
        renderIcons(session.installedApps || []);
        // Startseite automatisch öffnen falls konfiguriert
        if (session.startPage) {
          BrowserApp.open(session.startPage);
        }
        // Auto-Open-App (z.B. mobiler Streifenwagen-Terminal → IC-Verwaltung/Personalakte)
        if (session.autoOpenApp) {
          openApp(session.autoOpenApp);
        }
      }, 600);
    }, duration);
  }

  /* ── Clock ────────────────────────────────────────────── */
  function startClock() {
    const el = document.getElementById('clock');
    const tick = () => {
      if (!el) return;
      const now = new Date();
      el.textContent = now.toLocaleTimeString('de-DE', { hour: '2-digit', minute: '2-digit', second: '2-digit' });
    };
    tick();
    _clockTimer = setInterval(tick, 1000);
  }

  function stopClock() {
    clearInterval(_clockTimer);
    _clockTimer = null;
  }

  /* ── Desktop Icons ────────────────────────────────────── */
  function renderIcons(apps) {
    _installedApps = apps || [];
    const grid = document.getElementById('icon-grid');
    if (!grid) return;
    grid.innerHTML = '';

    _installedApps.forEach(app => {
      const meta = APP_META[app.app_id] || {};
      const icon = meta.icon || app.icon || '📦';
      const name = meta.name || app.name || app.app_id;

      const div = document.createElement('div');
      div.className = 'desktop-icon';
      div.innerHTML = `
        <div class="icon-glyph">${icon}</div>
        <div class="icon-label">${name}</div>`;
      div.addEventListener('dblclick', () => openApp(app.app_id));
      grid.appendChild(div);
    });
  }

  function openApp(appId) {
    const meta = APP_META[appId];
    if (meta && meta.open) {
      meta.open();
    } else {
      showNotification('⚠ App not yet available');
    }
  }

  /* ── Close ────────────────────────────────────────────── */
  function close() {
    WindowManager.closeAll();
    stopClock();

    const app         = document.getElementById('app');
    const bootEl      = document.getElementById('boot-screen');
    const desktopEl   = document.getElementById('desktop');
    const fill        = document.getElementById('boot-bar-fill');
    const grid        = document.getElementById('icon-grid');
    const taskbar     = document.getElementById('taskbar-apps');
    const container   = document.getElementById('pc-container');
    const minBtn      = document.getElementById('pc-minimize-btn');

    desktopEl.classList.remove('visible');
    bootEl.style.display  = 'flex';
    bootEl.classList.remove('fade-out');
    fill.style.transition = '';
    fill.style.width      = '0%';
    if (grid)    grid.innerHTML    = '';
    if (taskbar) taskbar.innerHTML = '';

    // Reset PC container position and minimized state
    if (container) {
      container.classList.remove('minimized');
      container.style.left      = '50%';
      container.style.top       = '50%';
      container.style.transform = 'translate(-50%, -50%)';
    }
    if (minBtn) { minBtn.textContent = '─'; minBtn.title = 'Minimize'; }

    app.classList.remove('visible');
    app.classList.remove('interact-mode');
    _session = null;
  }

  /* ── Message handler ───────────────────────────────────── */
  window.addEventListener('message', (e) => {
    const { action, data } = e.data || {};
    switch (action) {
      case 'boot':
        boot(data);
        break;
      case 'close':
        close();
        break;
      case 'exitInteract':
        exitInteractMode();
        break;
      case 'setInstalledApps':
        renderIcons(data);
        break;
      case 'setAccentColor':
        document.documentElement.style.setProperty('--accent', data.color);
        break;

      // Mail
      case 'setInbox':       MailApp.onInbox(data);           break;
      case 'setMailContent': MailApp.onMailContent(data);    break;
      case 'mailSent':       MailApp.onMailSent();           break;
      case 'mailDeleted':    MailApp.onMailDeleted(data.id); break;
      case 'newMailNotify':
        // Show unread badge on desktop icon (quick visual cue)
        showNotification('📧 New mail received');
        break;

      // Store
      case 'setStoreList':   StoreApp.onStoreData(data);     break;

      // Mail extended
      case 'setSent':           MailApp.onSetSent(data);                           break;
      case 'folderCreated':     MailApp.onFolderCreated(data);                     break;
      case 'folderDeleted':     MailApp.onFolderDeleted(data.id, data.address);    break;
      case 'foldersData':       MailApp.onFoldersData(data.address, data.folders);  break;
      case 'folderMailsData':   MailApp.onFolderMailsData(data.folderId, data.rows); break;
      case 'mailMoved':         MailApp.onMailMoved(data.id, data.folderId);       break;

      // Geteilte Postfächer
      case 'sharedMailboxes': MailApp.onSharedMailboxes(data.mailboxes, data.personalAddress,
                                                       data.personalSignature); break;
      case 'signatureSaved':  MailApp.onSignatureSaved(data);                              break;

      // Mail-Einrichtung
      case 'mailAddressStatus': MailApp.onMailAddressStatus(data); break;
      case 'mailCreateResult':  MailApp.onMailCreateResult(data);  break;

      // Calendar
      case 'calendarData':         MailApp.onCalendarData(data);              break;
      case 'calendarEventAdded':   MailApp.onCalendarEventAdded(data);        break;
      case 'calendarEventUpdated': MailApp.onCalendarEventUpdated(data);      break;
      case 'calendarEventDeleted': MailApp.onCalendarEventDeleted(data.id);   break;

      // Contacts
      case 'contactsData':    AddressBookApp.onContactsData(data);   break;
      case 'contactAdded':    AddressBookApp.onContactAdded(data);    break;
      case 'contactUpdated':  AddressBookApp.onContactUpdated(data);  break;
      case 'contactDeleted':  AddressBookApp.onContactDeleted(data.id); break;

      // IC-Verwaltung relay: forward Lua SendNUIMessage into the iframe
      case 'ic_verwaltung_relay':    ICVerwaltungApp.onRelay(data);    break;

      // Webhosting (ic-web): Antwort auf eine Anfrage mit Anfrage-Id
      case 'icweb_response':         ICWebNet.onResponse(data);        break;
      // Bleeter schickt alles über einen Kanal: Zustand und Verwaltungsantworten.
      case 'bleeter_data':           BleeterApp.onData(data);          break;
      case 'bleeter_notify':         BleeterApp.onNotify(data);        break;
      case 'bleeter_uploaded':       BleeterApp.onUploaded(data);      break;
    }
  });

  /* ── Keyboard: Escape closes PC ────────────────────────── */
  document.addEventListener('keydown', (e) => {
    if (e.key === 'Escape' && document.getElementById('desktop')?.classList.contains('visible')) {
      doClosePC();
    }
  });

  /* ── Notification toast ─────────────────────────────────── */
  function showNotification(msg) {
    const el = document.createElement('div');
    el.style.cssText = `
      position:fixed;top:50px;right:16px;z-index:9000;
      background:var(--bg-window);border:1px solid var(--border);
      border-left:3px solid var(--accent);
      border-radius:var(--radius);padding:10px 14px;
      font-size:.78rem;color:var(--text);
      box-shadow:var(--shadow);
      animation:fadeIn .2s ease;
    `;
    el.textContent = msg;
    document.body.appendChild(el);
    setTimeout(() => el.remove(), 4000);
  }

  return { boot, close, openApp, showNotification,
           get session() { return _session; } };
})();

/* ── Close button ───────────────────────────────────────── */
function doClosePC() {
  fetchNui('closePC', {});
}

/* ── PC Container: Minimize / Maximize ─────────────────── */
function toggleMinimizePC() {
  const container = document.getElementById('pc-container');
  const btn       = document.getElementById('pc-minimize-btn');
  if (!container) return;
  const isMin = container.classList.contains('minimized');
  container.classList.toggle('minimized', !isMin);
  if (btn) {
    btn.textContent = isMin ? '─' : '□';
    btn.title       = isMin ? 'Minimize' : 'Restore';
  }
}

/* ── Interaktionsmodus: PC transparent + Fokus zurück ins Spiel ── */
function toggleInteractMode() {
  const app = document.getElementById('app');
  const btn = document.getElementById('pc-interact-btn');
  if (!app) return;
  const on = !app.classList.contains('interact-mode');
  app.classList.toggle('interact-mode', on);
  if (btn) btn.classList.toggle('active', on);
  // interact AN -> NUI-Fokus AUS (man interagiert mit dem Spiel); AUS -> Fokus zurück auf den PC
  fetchNui('setFocus', { focus: !on });
}
function exitInteractMode() {
  const app = document.getElementById('app');
  const btn = document.getElementById('pc-interact-btn');
  if (app) app.classList.remove('interact-mode');
  if (btn) btn.classList.remove('active');
}

/* ── PC Size (viewport %) ────────────────────────────────── */
const PCScale = (() => {
  const STEP = 5;
  const MIN  = 40;
  const MAX  = 98;
  const KEY  = 'pc_live_vp';

  let _vp = parseInt(localStorage.getItem(KEY) || '88', 10);

  function apply() {
    _vp = Math.max(MIN, Math.min(MAX, _vp));
    document.documentElement.style.setProperty('--pc-vp', _vp);
    localStorage.setItem(KEY, _vp);
    const c = document.getElementById('pc-container');
    if (c) {
      c.style.left      = '50%';
      c.style.top       = '50%';
      c.style.transform = 'translate(-50%, -50%)';
    }
    const disp   = document.getElementById('pc-vp-display');
    const slider = document.getElementById('pc-vp-slider');
    if (disp)   disp.textContent  = _vp + '%';
    if (slider) slider.value      = _vp;
  }

  function step(dir) { _vp += dir * STEP; apply(); }
  function setVP(v)  { _vp  = parseInt(v, 10); apply(); }

  document.addEventListener('wheel', (e) => {
    if (!e.ctrlKey) return;
    e.preventDefault();
    step(e.deltaY < 0 ? 1 : -1);
  }, { passive: false });

  apply();
  return { step, setVP };
})();

/* ── PC Font Size ─────────────────────────────────────────── */
const PCFontSize = (() => {
  const STEP = 1;
  const MIN  = 11;
  const MAX  = 20;
  const KEY  = 'pc_live_fs';

  let _fs = parseInt(localStorage.getItem(KEY) || '13', 10);

  function apply() {
    _fs = Math.max(MIN, Math.min(MAX, _fs));
    document.documentElement.style.setProperty('--pc-fs', _fs);
    localStorage.setItem(KEY, _fs);
    const disp   = document.getElementById('pc-fs-display');
    const slider = document.getElementById('pc-fs-slider');
    if (disp)   disp.textContent = _fs + 'px';
    if (slider) slider.value     = _fs;
  }

  function step(dir) { _fs += dir * STEP; apply(); }
  function set(v)    { _fs  = parseInt(v, 10); apply(); }

  apply();
  return { step, set };
})();

/* ── Settings Panel ───────────────────────────────────────── */
const PCSettings = (() => {
  let _open = false;

  function toggle() {
    _open = !_open;
    const panel = document.getElementById('pc-settings-panel');
    const btn   = document.getElementById('pc-settings-btn');
    if (panel) panel.classList.toggle('open', _open);
    if (btn)   btn.classList.toggle('active', _open);
    // Sync slider values when opening
    if (_open) {
      const fsSlider = document.getElementById('pc-fs-slider');
      const vpSlider = document.getElementById('pc-vp-slider');
      if (fsSlider) fsSlider.value = parseInt(localStorage.getItem('pc_live_fs') || '13', 10);
      if (vpSlider) vpSlider.value = parseInt(localStorage.getItem('pc_live_vp') || '88', 10);
    }
  }

  function close() {
    _open = false;
    const panel = document.getElementById('pc-settings-panel');
    const btn   = document.getElementById('pc-settings-btn');
    if (panel) panel.classList.remove('open');
    if (btn)   btn.classList.remove('active');
  }

  // Schließen bei Klick außerhalb
  document.addEventListener('click', (e) => {
    if (!_open) return;
    const panel = document.getElementById('pc-settings-panel');
    const btn   = document.getElementById('pc-settings-btn');
    if (panel && !panel.contains(e.target) && btn && !btn.contains(e.target)) {
      close();
    }
  });

  return { toggle, close };
})();

/* ── PC Container: Draggable via Titelleiste ────────────── */
(function initPCDrag() {
  const container = document.getElementById('pc-container');
  const titlebar  = document.getElementById('pc-titlebar');
  if (!container || !titlebar) return;

  let startX, startY, startL, startT;

  titlebar.addEventListener('mousedown', (e) => {
    // Ignore clicks on buttons
    if (e.target.closest('#pc-minimize-btn, #close-pc-btn, #pc-settings-btn, #pc-settings-panel')) return;

    // Convert centered transform to explicit pixel position
    const rect = container.getBoundingClientRect();
    container.style.left      = rect.left + 'px';
    container.style.top       = rect.top  + 'px';
    container.style.transform = 'none';

    startX = e.clientX; startY = e.clientY;
    startL = rect.left;  startT = rect.top;

    const onMove = (e2) => {
      const newL = startL + e2.clientX - startX;
      const newT = startT + e2.clientY - startY;
      const maxL = window.innerWidth  - container.offsetWidth;
      const maxT = window.innerHeight - container.offsetHeight;
      container.style.left = Math.max(0, Math.min(maxL, newL)) + 'px';
      container.style.top  = Math.max(0, Math.min(maxT, newT)) + 'px';
    };
    const onUp = () => {
      document.removeEventListener('mousemove', onMove);
      document.removeEventListener('mouseup',   onUp);
    };
    document.addEventListener('mousemove', onMove);
    document.addEventListener('mouseup',   onUp);
  });
})();