import { EventEmitter } from 'node:events';
import { HarnessBridge } from './harness-bridge.js';
import { ComputerUseSession } from '../computer-use/session.js';
import { VoiceStateMachine } from './voice-state.js';
import { QvacScheduler } from './qvac-scheduler.js';
import { cancelQvac, resumeQvac, suspendQvac, callQvac, cancelQvacRequest, qvacStatus } from './qvac-master.js';
import { PrivacyLog } from './privacy-log.js';
import { VoiceLoop } from './voice-loop.js';
import { QvacVoiceAdapter } from './voice-adapters.js';
import { voiceSettings } from './voice-settings.js';
import { createWakeEngine } from './wake-engine.js';
import { DesktopObserver } from '../computer-use/observer.js';
import { QvacPerception } from './perception.js';
import { ComputerAudit } from '../computer-use/audit.js';
import { PortalInputBackend } from '../computer-use/portal-input.js';
import { ComputerActuator } from '../computer-use/actuator.js';
import { RuntimeTelemetry } from './telemetry.js';
import { StateRecovery } from './recovery.js';
import { spokenReply } from '../skills/voice-prompt.js';

export class JarvisDaemon extends EventEmitter {
  constructor() {
    super();
    this.recovery = new StateRecovery(); const restored = this.recovery.load(); this.state = restored.state; this.mode = restored.mode;
    this.voice = new VoiceStateMachine();
    this.scheduler = new QvacScheduler({ concurrency: 1 });
    this.audit = new ComputerAudit();
    this.computer = new ComputerUseSession({ audit: this.audit });
    this.input = new PortalInputBackend();
    this.perception = new QvacPerception();
    this.observer = new DesktopObserver({ ocr: (image) => this.perception.ocr(image) });
    this.actuator = new ComputerActuator({ session: this.computer, input: this.input, find: ({ ref }) => this.observer.lastTree.filter((node) => node.ref === ref), atspiAction: (target, action) => this.observer.atspi.action(target, action), highlight: async (target, action) => this.emit('ComputerHighlight', JSON.stringify({ rect: target?.rect || null, label: `${action} ${target?.name || ''}` })) , audit: this.audit });
    this.harness = new HarnessBridge({ cwd: process.cwd(), computer: this.computer, observer: this.observer, actuator: this.actuator });
    this.log = new PrivacyLog();
    this.locked = false;
    this.lastReply = '';
    this.voiceLoop = null;
    this._activeAsk = null;
    this._idleTimer = setInterval(() => this.tickIdle(), 30_000);
    this._idleTimer.unref?.();
    this.telemetry = new RuntimeTelemetry();
    this._telemetryTimer = setInterval(() => this.telemetry.sample(), 60_000); this._telemetryTimer.unref?.();
    this.harness.on('agent_message_chunk', (ev) => this.emit('Token', ev?.text || ev?.delta || ''));
    this.harness.on('agent_thought_chunk', (ev) => this.emit('Thinking', String(ev?.text || ev?.delta || '')));
    this.harness.on('tool_call', (ev) => this.emit('ToolCall', JSON.stringify({ name: ev?.call?.name || 'tool', arguments: ev?.call?.arguments || {} })));
    this.harness.on('tool_result', (ev) => this.emit('ToolResult', JSON.stringify({ name: ev?.name || 'tool', result: ev?.result || '', toolCallId: ev?.toolCallId || '' })));
    this.harness.on('permission', (ev) => this.emit('ConfirmationRequired', ev));
    this.harness.on('hud_sidecar', (ev) => this.emit('ChipOffered', 'sidecar', ev?.title || 'Suggested action', JSON.stringify(ev || {})));
  }

  setState(state) { this.state = state; try { this.recovery.save({ state, mode: this.mode }); } catch (error) { this.emit('Error', 'RECOVERY_WRITE', error.message); } this.emit('StateChanged', state); this.log.record('state', { state }).catch(() => {}); }
  async arm() { if (this.locked) return; await resumeQvac().catch(() => {}); this.voice.wake(); this.setState('LISTENING'); }
  async sleep() { this.voice.sleep(); this.setState('SLEEPING'); await suspendQvac().catch((error) => this.emit('Error', 'QVAC_SUSPEND', error.message)); }
  say(text) {
    const spoken = spokenReply(text) || spokenReply(this.lastReply) || 'There is nothing to repeat.';
    this.lastReply = spoken;
    this.emit('Reply', spoken);
    this._beginSpeech();
    this._speakReply(spoken);
  }
  async ask(text) {
    this.voiceLoop?.interrupt?.();
    try {
      this.voice.typedUtterance(); this.setState('THINKING');
      const startedAt = Date.now();
      const job = this.scheduler.run(() => this.harness.ask(text), { lane: 'voice' });
      this._activeAsk = job;
      const reply = await job;
      this.telemetry.record('llm', startedAt, { success: true });
      const spoken = spokenReply(reply);
      if (!spoken) { this.setState('LISTENING'); return ''; }
      this._beginSpeech(); this.lastReply = spoken; this.emit('Reply', spoken); this._speakReply(spoken); return spoken;
    } catch (error) {
      this.telemetry.record('llm', Date.now(), { success: false }); this.emit('Error', 'QVAC', error.message); this.voice.cancel(); this.setState('ARMED'); throw error;
    } finally {
      this._activeAsk = null;
    }
  }
  async resetContext() {
    this.harness.cancel();
    this.scheduler.cancelQueued((job) => job.lane === 'voice');
    await this._activeAsk?.catch?.(() => {});
    await this.harness.resetContext();
    this.lastReply = '';
    this.voiceLoop?.interrupt?.();
    this.voice.cancel();
    this.setState('ARMED');
    this.emit('ContextReset');
  }
  confirmPermission(jobId, toolCallId, decision) {
    this.harness.session?.permit?.(String(jobId || ''), String(toolCallId || ''), String(decision || 'deny'));
  }
  _beginSpeech() {
    try {
      if (this.voice.state === 'ARMED' || this.voice.state === 'SLEEPING') this.voice.wake();
      if (this.voice.state !== 'SPEAKING') this.voice.speak();
    } catch {}
    this.setState('SPEAKING');
  }
  _finishSpeech() {
    try { this.voice.finishSpeaking(); } catch {}
    if (this.state === 'SPEAKING') this.setState('LISTENING');
  }
  _speakReply(spoken) {
    const playing = this.voiceLoop?.speak?.(spoken);
    if (!playing) { this._finishSpeech(); return; }
    Promise.resolve(playing).catch((error) => {
      this.emit('Error', 'TTS', error.message);
      if (this.state === 'SPEAKING') this._finishSpeech();
    });
  }
  cancel() { this.voiceLoop?.interrupt?.(); this.harness.cancel(); this.scheduler.cancelQueued((job) => job.lane === 'voice'); this.computer.revoke(); this.voice.cancel(); this.setState('ARMED'); cancelQvac().catch((error) => this.emit('Error', 'QVAC_CANCEL', error.message)); }
  computerGrant(persist = false) { const result = this.computer.grant({ persist }); this.emit('ComputerStep', JSON.stringify({ action: 'grant', ...result })); this.input.grant({ persist }).then((backend) => { this.computer.setBackend(backend.backend); this.emit('ComputerStep', JSON.stringify({ action: 'backend', ...backend })); }).catch((error) => this.emit('Error', 'CU_GRANT', error.message)); return result; }
  computerRevoke() { this.input.revoke(); this.computer.revoke(); this.emit('ComputerStep', JSON.stringify({ action: 'revoke' })); }
  async startVoice() {
    if (this.voiceLoop) return;
    const settings = voiceSettings();
    const asr = new QvacVoiceAdapter({ role: 'asr' });
    const tts = settings.ttsEnabled ? new QvacVoiceAdapter({ role: 'tts' }) : null;
    const loop = new VoiceLoop({ daemon: this, wake: createWakeEngine(settings), asr, tts });
    loop.on('error', (error) => { console.error(`jarvisd: voice: ${error.message}`); this.emit('Error', 'VOICE', error.message); });
    this.voiceLoop = loop;
    try { await loop.start(); this.emit('StateChanged', this.state); } catch (error) {
      this.voiceLoop = null; await loop.stop?.().catch(() => {}); this.emit('Error', 'VOICE_UNAVAILABLE', error.message); throw error;
    }
  }
  setPushToTalk(pressed) { this.voiceLoop?.setPushToTalk(pressed); this.emit('PushToTalk', Boolean(pressed)); }
  runtimeStatus() { return JSON.stringify({ local: true, qvac: qvacStatus(), scheduler: this.scheduler.status(), scheduler_metrics: this.scheduler.metrics(), telemetry: this.telemetry.snapshot(), computer: this.computer.status(), voice: this.voiceLoop ? { ...this.voiceLoop.metrics.snapshot(), ...this.voiceLoop.status } : null, p2p: { enabled: process.env.JARVIS_P2P_ENABLE === '1', inference: false, memorySync: false } }); }
  async assessModelFit(model) { return JSON.stringify(await callQvac('assessModelFit', { modelSrc: String(model) })); }
  async downloadModel(model) { return JSON.stringify(await callQvac('downloadAsset', { modelSrc: String(model) })); }
  async cancelModel(model) { return JSON.stringify(await cancelQvacRequest({ modelId: String(model) })); }
  async wipeComputerTraces() { await this.audit.wipeTemp(); return true; }
  handleLockScreen(locked) { this.locked = Boolean(locked); if (this.locked) { this.cancel(); this.setState('ARMED'); } this.emit('LockScreenChanged', this.locked); }
  tickIdle() { if (!this.locked && this.voice.expireIdle() === 'SLEEPING' && this.state !== 'SLEEPING') this.sleep(); }
  async close() { clearInterval(this._idleTimer); clearInterval(this._telemetryTimer); this.computerRevoke(); this.recovery.save({ state: 'ARMED', mode: this.mode }); await this.voiceLoop?.stop?.(); await this.harness.close(); }
}

export async function startDaemon() {
  const daemon = new JarvisDaemon();
  daemon.startVoice().catch((error) => console.error(`jarvisd: voice unavailable: ${error.message}`));
  import('./dbus-service.js')
    .then(({ serveOnSessionBus }) => serveOnSessionBus(daemon))
    .then(() => console.log('jarvisd: D-Bus name io.qvac.Jarvis ready'))
    .catch((error) => {
      daemon.emit('Error', 'DBUS_UNAVAILABLE', error.message);
      console.error(`jarvisd: D-Bus unavailable: ${error.message}`);
    });
  process.on('SIGINT', () => daemon.close().finally(() => process.exit(0)));
  console.log('jarvisd ready; QVAC inference remains GPU-gated');
  return daemon;
}