const token = sessionStorage.getItem('token');
function authHeaders() {
  return token ? { 'Authorization': 'Bearer ' + token } : {};
}
function apiFetch(url, options) {
  options = options || {};
  return fetch(url, Object.assign({}, options, {
    headers: Object.assign({'Content-Type': 'application/json'}, authHeaders(), options.headers || {}),
  }));
}

let _devices = [];

function showToast(msg) {
  const t = document.getElementById('toast');
  t.textContent = msg;
  t.classList.add('show');
  setTimeout(function() { t.classList.remove('show'); }, 2500);
}

async function loadDevices() {
  const r = await apiFetch('/audio/devices');
  if (!r.ok) return;
  _devices = await r.json();
  const sel = document.getElementById('audio-device');
  const current = sel.value;
  sel.replaceChildren(new Option('Systemstandard', ''));
  _devices.forEach(function(d) { sel.appendChild(new Option(d.name, d.name)); });
  if (current) sel.value = current;
  ['combined-mic', 'combined-monitor'].forEach(function(id) {
    const el = document.getElementById(id);
    el.replaceChildren();
    _devices.forEach(function(d) { el.appendChild(new Option(d.name, d.name)); });
  });
}

async function loadOllamaModels(baseUrl, current) {
  try {
    const parsed = new URL(baseUrl);
    if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') return;
    const r = await fetch(parsed.origin + '/api/tags');
    if (!r.ok) return;
    const data = await r.json();
    const sel = document.getElementById('ollama-model');
    sel.replaceChildren();
    (data.models || []).forEach(function(m) { sel.appendChild(new Option(m.name, m.name)); });
    if (current) sel.value = current;
  } catch(e) {}
}

async function loadConfig() {
  const r = await apiFetch('/config');
  if (!r.ok) return;
  const cfg = await r.json();
  document.getElementById('audio-device').value = (cfg.audio && cfg.audio.device) || '';
  document.getElementById('whisper-backend').value = (cfg.whisper && cfg.whisper.backend) || 'openai';
  document.getElementById('whisper-url').value = (cfg.whisper && cfg.whisper.base_url) || '';
  document.getElementById('whisper-model').value = (cfg.whisper && cfg.whisper.model) || 'large-v3';
  const ollamaUrl = (cfg.ollama && cfg.ollama.base_url) || 'http://localhost:11434';
  document.getElementById('ollama-url').value = ollamaUrl;
  await loadOllamaModels(ollamaUrl, cfg.ollama && cfg.ollama.model);
  const diarCfg = cfg.diarization || {};
  document.getElementById('diar-enabled').checked = !!diarCfg.enabled;
  document.getElementById('diar-hf-token').value = diarCfg.hf_token || '';
  document.getElementById('obsidian-vault').value = (cfg.obsidian && cfg.obsidian.vault) || '';
}

document.getElementById('refresh-devices-btn').addEventListener('click', loadDevices);

document.getElementById('create-combined-btn').addEventListener('click', function() {
  document.getElementById('combined-form').classList.toggle('visible');
});
document.getElementById('combined-cancel-btn').addEventListener('click', function() {
  document.getElementById('combined-form').classList.remove('visible');
});
document.getElementById('combined-confirm-btn').addEventListener('click', async function() {
  const mic = document.getElementById('combined-mic').value;
  const monitor = document.getElementById('combined-monitor').value;
  const r = await apiFetch('/audio/combined', {
    method: 'POST',
    body: JSON.stringify({ mic: mic, monitor: monitor }),
  });
  if (!r.ok) { showToast('Fehler beim Erstellen'); return; }
  const data = await r.json();
  showToast('Erstellt: ' + data.device);
  document.getElementById('combined-form').classList.remove('visible');
  await loadDevices();
  document.getElementById('audio-device').value = data.device;
});

document.getElementById('ollama-url').addEventListener('change', function(e) {
  loadOllamaModels(e.target.value, document.getElementById('ollama-model').value);
});

document.getElementById('save-btn').addEventListener('click', async function() {
  const body = {
    audio: { device: document.getElementById('audio-device').value },
    whisper: {
      base_url: document.getElementById('whisper-url').value,
      model: document.getElementById('whisper-model').value,
      backend: document.getElementById('whisper-backend').value,
    },
    ollama: {
      base_url: document.getElementById('ollama-url').value,
      model: document.getElementById('ollama-model').value,
    },
    obsidian: {
      vault: document.getElementById('obsidian-vault').value.trim(),
    },
    diarization: {
      enabled: document.getElementById('diar-enabled').checked,
      hf_token: document.getElementById('diar-hf-token').value.trim(),
    },
  };
  const r = await apiFetch('/config', { method: 'PUT', body: JSON.stringify(body) });
  if (r.ok) { showToast('Gespeichert'); } else { showToast('Fehler beim Speichern'); }
});

(async function() {
  if (!token) { location.href = '/login'; return; }
  await loadDevices();
  await loadConfig();
})();