// FlipperDroid WebUI — Bridge Controller

let config = {};
let currentTab = 'dashboard';
let toastTimer = null;
let eventPollInterval = null;

// ---- API ----
async function api(path, opts = {}) {
  try {
    const res = await fetch(path, opts);
    if (path.endsWith('.css') || path.endsWith('.js') || path.endsWith('.html')) return res;
    const ct = res.headers.get('content-type') || '';
    if (ct.includes('json')) return await res.json();
    return await res.text();
  } catch (e) {
    showToast('Connection error', 'error');
    return null;
  }
}

const post = (path, body) => api(path, {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify(body)
});

// ---- Toast ----
function showToast(msg, type = 'success') {
  const el = document.getElementById('toast');
  el.textContent = msg;
  el.className = 'toast ' + type + ' show';
  clearTimeout(toastTimer);
  toastTimer = setTimeout(() => el.className = 'toast', 2500);
}

// ---- Tabs ----
function switchTab(tab) {
  currentTab = tab;
  document.querySelectorAll('.page').forEach(p => p.classList.remove('active'));
  document.querySelectorAll('.tab-item').forEach(t => t.classList.remove('active'));
  document.getElementById('page-' + tab).classList.add('active');
  document.querySelector(`[data-tab="${tab}"]`).classList.add('active');
  if (tab === 'events') loadEvents();
  if (tab === 'gpio') initGpioGrid();
  if (tab === 'stealth') stealthStatus();
}

// ---- Dashboard ----
async function loadStatus() {
  const data = await api('/api/status');
  if (!data) return;

  config = data;
  setText('info-status', data.status || 'unknown');
  setText('info-transport', data.conn_type || 'none');
  setText('info-device', data.device || '-');
  setText('info-product', data.product || '-');
  setText('info-serial', data.serial || '-');
  setText('info-firmware', data.firmware_version || '-');

  const badge = document.getElementById('status-badge');
  if (data.status === 'connected') {
    badge.textContent = `Connected — ${data.conn_type?.toUpperCase() || 'USB'} — ${data.product || 'Flipper Zero'}`;
  } else {
    badge.textContent = 'Disconnected';
  }

  // Status chips
  setChip('chip-conn', data.status === 'connected');
  setChip('chip-gpio', data.status === 'connected' && data.config?.enable_gpio);
  setChip('chip-rf', data.status === 'connected' && data.config?.enable_subghz);
  setChip('chip-nfc', data.status === 'connected' && data.config?.enable_nfc);
  setChip('chip-cpu', data.status === 'connected' && data.config?.cpu_share);

  // Toggles
  if (data.config) {
    setToggle('toggle-autoconnect', data.config.auto_connect);
    setToggle('toggle-cpushare', data.config.cpu_share);
  }
}

function setChip(id, on) {
  const chip = document.getElementById(id);
  if (!chip) return;
  const dot = chip.querySelector('.dot');
  if (dot) { dot.className = on ? 'dot' : 'dot off'; }
}

function setText(id, val) {
  const el = document.getElementById(id);
  if (el) el.textContent = val;
}

function setToggle(id, val) {
  const el = document.getElementById(id);
  if (el) el.checked = !!val;
}

async function setConfig(key, value) {
  const r = await post('/api/config', { key, value: String(value) });
  if (r && r.ok) showToast('Config updated');
  else showToast('Config update failed', 'error');
}

async function reconnect() {
  await post('/api/reconnect');
  showToast('Reconnecting...');
  setTimeout(loadStatus, 3000);
}

async function pingFlipper() {
  const r = await post('/api/system/ping');
  if (r && r.result && r.result.startsWith('OK')) showToast('Pong!');
  else showToast('Ping failed: ' + (r?.result || 'no response'), 'error');
}

// ---- GPIO ----
const GPIO_PINS = [
  { num: 2, name: 'PA2' }, { num: 3, name: 'PA3' }, { num: 4, name: 'PA4' },
  { num: 6, name: 'PA6' }, { num: 7, name: 'PA7' }, { num: 13, name: 'PB2' },
  { num: 14, name: 'PB3' }, { num: 15, name: 'PB13' }, { num: 16, name: 'PB14' },
  { num: 17, name: 'PC0' }, { num: 18, name: 'PC1' }, { num: 19, name: 'PC3' }
];

function initGpioGrid() {
  const grid = document.getElementById('gpio-grid');
  if (!grid || grid.children.length > 0) return;
  GPIO_PINS.forEach(pin => {
    const div = document.createElement('div');
    div.className = 'gpio-pin';
    div.id = 'gpio-pin-' + pin.num;
    div.innerHTML = `<div class="pin-name">${pin.name}</div><div class="pin-val">-</div>`;
    div.onclick = () => quickGpioRead(pin.num);
    grid.appendChild(div);
  });
}

async function quickGpioRead(pinNum) {
  const r = await post('/api/gpio/read', { pin: pinNum });
  const el = document.getElementById('gpio-pin-' + pinNum);
  if (r && r.result && r.result.startsWith('OK:')) {
    const val = r.result.replace('OK:', '');
    const valEl = el.querySelector('.pin-val');
    valEl.textContent = val === '01' || val === '1' ? 'HIGH' : 'LOW';
    el.className = 'gpio-pin ' + (val === '01' || val === '1' ? 'high' : 'low');
  }
}

async function gpioInit() {
  const pin = parseInt(document.getElementById('gpio-pin').value);
  const mode = parseInt(document.getElementById('gpio-mode').value);
  const r = await post('/api/gpio/init', { pin, mode });
  showToast(r?.result || 'No response');
}

async function gpioRead() {
  const pin = parseInt(document.getElementById('gpio-pin').value);
  const r = await post('/api/gpio/read', { pin });
  document.getElementById('gpio-result').textContent = r?.result || '-';
}

async function gpioWrite(val) {
  const pin = parseInt(document.getElementById('gpio-pin').value);
  const r = await post('/api/gpio/write', { pin, value: val });
  showToast(r?.result || 'No response');
}

async function gpioPwm() {
  const pin = parseInt(document.getElementById('gpio-pin').value);
  const freq = parseInt(document.getElementById('gpio-pwm-freq').value);
  const duty = parseInt(document.getElementById('gpio-pwm-duty').value);
  const r = await post('/api/gpio/pwm', { pin, freq, duty });
  showToast(r?.result || 'No response');
}

async function gpioAdc() {
  const pin = parseInt(document.getElementById('gpio-pin').value);
  const r = await post('/api/gpio/adc', { pin });
  document.getElementById('gpio-adc-result').textContent = r?.result || '-';
}

// ---- SubGHz ----
async function subghzSetFreq() {
  const freq = parseInt(document.getElementById('subghz-freq').value);
  const r = await post('/api/subghz/set_freq', { freq });
  showToast(r?.result || 'No response');
}

async function subghzTx() {
  const data = document.getElementById('subghz-tx-data').value;
  const r = await post('/api/subghz/tx', { data });
  showToast(r?.result || 'No response');
}

async function subghzRxStart() {
  const r = await post('/api/subghz/rx_start');
  showToast(r?.result || 'No response');
}

async function subghzRxStop() {
  const r = await post('/api/subghz/rx_stop');
  showToast(r?.result || 'No response');
}

async function subghzGetRssi() {
  const r = await post('/api/subghz/get_rssi');
  document.getElementById('subghz-rssi').textContent = r?.result || '-';
}

async function subghzReplay() {
  const slot = parseInt(document.getElementById('subghz-replay-slot').value);
  const r = await post('/api/subghz/replay', { slot });
  showToast(r?.result || 'No response');
}

// ---- NFC ----
async function nfcPoll() {
  appendLog('nfc-log', 'Polling for NFC card...');
  const r = await post('/api/nfc/poll');
  appendLog('nfc-log', r?.result || 'No response');
}

async function nfcReadFull() {
  appendLog('nfc-log', 'Reading full card...');
  const r = await post('/api/nfc/read_full');
  appendLog('nfc-log', r?.result || 'No response');
}

async function nfcRelayStart() {
  const r = await post('/api/nfc/relay_start');
  showToast(r?.result || 'No response');
}

async function nfcRelayStop() {
  const r = await post('/api/nfc/relay_stop');
  showToast(r?.result || 'No response');
}

// ---- RFID ----
async function rfidRead() {
  appendLog('rfid-log', 'Reading RFID tag...');
  const r = await post('/api/rfid/read');
  appendLog('rfid-log', r?.result || 'No response');
}

async function rfidEmulate() {
  const data = document.getElementById('rfid-emu-data').value;
  const r = await post('/api/rfid/emulate', { data });
  showToast(r?.result || 'No response');
}

// ---- IR ----
async function irTx() {
  const protocol = parseInt(document.getElementById('ir-proto').value);
  const address = parseInt(document.getElementById('ir-addr').value);
  const command = parseInt(document.getElementById('ir-cmd').value);
  const r = await post('/api/ir/tx', { protocol, address, command });
  showToast(r?.result || 'No response');
}

async function irRxStart() {
  const r = await post('/api/ir/rx_start');
  showToast(r?.result || 'No response');
}

async function irRxStop() {
  const r = await post('/api/ir/rx_stop');
  showToast(r?.result || 'No response');
}

async function irReplay() {
  const slot = parseInt(document.getElementById('ir-replay-slot').value);
  const r = await post('/api/ir/replay', { slot });
  showToast(r?.result || 'No response');
}

// ---- Stealth ----
async function stealthStatus() {
  const r = await api('/api/stealth/status');
  const el = document.getElementById('stealth-status-text');
  const countEl = document.getElementById('stealth-mount-count');
  const logEl = document.getElementById('stealth-log');
  if (r && typeof r === 'object') {
    el.textContent = r.active_bind_mounts > 0 ? 'ACTIVE' : 'INACTIVE';
    el.style.color = r.active_bind_mounts > 0 ? 'var(--success)' : 'var(--text-muted)';
    countEl.textContent = r.active_bind_mounts || '0';
    if (logEl) {
      logEl.textContent = JSON.stringify(r, null, 2);
    }
  } else {
    el.textContent = 'unavailable';
  }
}

async function stealthApply() {
  const r = await post('/api/stealth/apply');
  showToast(r?.message || 'Stealth applied');
  setTimeout(stealthStatus, 1000);
}

async function stealthTeardown() {
  const r = await post('/api/stealth/teardown');
  showToast(r?.message || 'Stealth removed');
  setTimeout(stealthStatus, 1000);
}

async function stealthHideDev() {
  const r = await post('/api/stealth/hide');
  showToast(r?.message || 'Device hidden');
  setTimeout(stealthStatus, 1000);
}

async function stealthShowDev() {
  const r = await post('/api/stealth/show');
  showToast(r?.message || 'Device visible');
  setTimeout(stealthStatus, 1000);
}

// ---- Events ----
async function loadEvents() {
  const data = await api('/api/events');
  const log = document.getElementById('events-log');
  if (!log) return;
  if (Array.isArray(data)) {
    log.textContent = data.map(e =>
      `[${new Date(e.timestamp * 1000).toLocaleTimeString()}] ${e.type}: ${e.data} ${e.extra || ''}`
    ).join('\n') || 'No events yet';
  } else {
    log.textContent = data || 'No events';
  }
}

async function loadSysLog() {
  const data = await api('/api/log');
  const log = document.getElementById('sys-log');
  if (log) log.textContent = data || 'No log data';
}

// ---- Helpers ----
function appendLog(id, msg) {
  const el = document.getElementById(id);
  if (!el) return;
  const ts = new Date().toLocaleTimeString();
  el.textContent += `[${ts}] ${msg}\n`;
  el.scrollTop = el.scrollHeight;
}

// ---- Init ----
document.addEventListener('DOMContentLoaded', () => {
  loadStatus();
  setInterval(loadStatus, 5000);

  // Poll events when on events tab
  setInterval(() => {
    if (currentTab === 'events') loadEvents();
  }, 3000);

  // Poll SubGHz log when on subghz tab
  setInterval(async () => {
    if (currentTab === 'subghz') {
      const data = await api('/api/events');
      if (Array.isArray(data)) {
        const rfEvents = data.filter(e => e.type === 'subghz_rx');
        if (rfEvents.length > 0) {
          const log = document.getElementById('subghz-log');
          if (log) {
            log.textContent = rfEvents.map(e =>
              `[${new Date(e.timestamp * 1000).toLocaleTimeString()}] RX: ${e.data} (${e.extra})`
            ).join('\n');
          }
        }
      }
    }
  }, 2000);
});