// @ts-nocheck
import { captureModeSuffix, isSyntheticLoopMode } from "./config.js";
import { captureFrame, drawSyntheticFrame } from "./captureCanvas.js";
import { setButtonState, setCaptureStatus, setLoopButtonState } from "./captureUi.js";
import { clearScheduledScan, scheduleNextScan, startCountdownTimer, stopCountdownTimer, updateCountdown } from "./timing.js";
import { state } from "./state.js";

export function createCaptureFlow({ requestAnalysis, recoverStaleAnalysis, setAnalysisPending }) {
  async function captureOnceAndAnalyze() {
    if (isSyntheticLoopMode()) {
      drawSyntheticFrame();
      setCaptureStatus(`Analyzing current desktop capture${captureModeSuffix()}...`);
      state.allowAnalysisClick = true;
      requestAnalysis(false);
      state.allowAnalysisClick = false;
      return;
    }
    const source = (document.querySelector('#desktop-capture-source select, #desktop-capture-source input')?.value || state.source || '🖥 Screen').toLowerCase();
    if (!navigator.mediaDevices?.getDisplayMedia) {
      setCaptureStatus('Desktop capture is not available in this browser or iframe.');
      return;
    }
    let stream = null;
    let video = null;
    try {
      setCaptureStatus('Waiting for browser screen picker...');
      stream = await navigator.mediaDevices.getDisplayMedia({
        video: { cursor: 'always', displaySurface: source.includes('window') ? 'window' : 'monitor' },
        monitorTypeSurfaces: 'include',
        selfBrowserSurface: 'exclude',
        surfaceSwitching: 'include',
        audio: false,
      });
      video = document.createElement('video');
      video.autoplay = true;
      video.muted = true;
      video.playsInline = true;
      video.srcObject = stream;
      await video.play();
      state.video = video;
      state.stream = stream;
      state.sessionStartedAt = Date.now();
      state.active = true;
      state.loopPaused = false;
      state.sessionPausedMs = 0;
      state.sessionPauseStartedAt = null;
      captureFrame();
      state.allowAnalysisClick = true;
      setCaptureStatus('Analyzing selected desktop frame...');
      requestAnalysis(false);
      state.allowAnalysisClick = false;
    } catch (error) {
      if (stream) for (const track of stream.getTracks()) track.stop();
      state.video = null;
      state.stream = null;
      state.active = false;
      state.sessionStartedAt = null;
      state.loopPaused = false;
      state.sessionPausedMs = 0;
      state.sessionPauseStartedAt = null;
      if (state.previewTimer) {
        window.clearInterval(state.previewTimer);
        state.previewTimer = null;
      }
      setButtonState(false);
      const message = error?.name === 'NotAllowedError'
        ? 'Desktop capture was cancelled or blocked. Pick a screen/window to analyze one frame.'
        : `Desktop capture failed: ${error?.message || error}`;
      setCaptureStatus(message);
      console.warn('One-shot desktop capture failed:', error);
    } finally {
      if (video) video.srcObject = null;
      if (stream) for (const track of stream.getTracks()) track.stop();
      if (state.previewTimer) {
        window.clearInterval(state.previewTimer);
        state.previewTimer = null;
      }
      state.video = null;
      state.stream = null;
      state.active = false;
      state.sessionStartedAt = null;
      state.loopPaused = false;
      state.sessionPausedMs = 0;
      state.sessionPauseStartedAt = null;
      setButtonState(false);
    }
  }

  function captureAndAnalyze(resetTimer = false, rearmNextScan = true) {
    window['__trackwhatDesktopCaptureTrace']?.('analysis.capture', {
      resetTimer, active: state.active, analysisPending: state.analysisPending, scanTimer: Boolean(state.scanTimer),
    });
    if (resetTimer && state.scanTimer) {
      window.clearTimeout(state.scanTimer);
      state.scanTimer = null;
    }
    state.nextScanAt = null;
    if (captureFrame()) window.setTimeout(() => requestAnalysis(rearmNextScan), 250);
    else if (state.active) recoverStaleAnalysis('frame-not-ready');
  }

  state.captureAndAnalyze = captureAndAnalyze;

  function startLivePreviewLoop() {
    if (state.previewTimer) window.clearInterval(state.previewTimer);
    state.previewTimer = window.setInterval(() => { if (state.active) captureFrame(false); }, 1000);
  }

  async function startCapture() {
    if (state.active) return;
    window['__trackwhatDesktopCaptureTrace']?.('capture.start', { active: state.active, automationMode: state.automationMode });
    const source = (document.querySelector('#desktop-capture-source select, #desktop-capture-source input')?.value || state.source || '🖥 Screen').toLowerCase();
    let stream = null;
    let video = null;
    try {
      if (isSyntheticLoopMode()) {
        state.sessionStartedAt = Date.now();
        state.loopPaused = false;
        state.sessionPausedMs = 0;
        state.sessionPauseStartedAt = null;
        setButtonState(true);
        state.active = true;
        captureAndAnalyze();
        startCountdownTimer();
        return;
      }
      if (!navigator.mediaDevices?.getDisplayMedia) throw new Error('Screen capture is not available in this browser or iframe.');
      setCaptureStatus('Waiting for browser screen picker...');
      stream = await navigator.mediaDevices.getDisplayMedia({
        video: { cursor: 'always', displaySurface: source.includes('window') ? 'window' : 'monitor' },
        monitorTypeSurfaces: 'include',
        selfBrowserSurface: 'exclude',
        surfaceSwitching: 'include',
        audio: false,
      });
      state.stream = stream;
      video = document.createElement('video');
      state.video = video;
      video.autoplay = true;
      video.muted = true;
      video.playsInline = true;
      video.srcObject = stream;
      await video.play();
      state.active = true;
      state.sessionStartedAt = Date.now();
      state.loopPaused = false;
      setButtonState(true);
      captureAndAnalyze();
      startLivePreviewLoop();
      startCountdownTimer();
      const track = stream.getVideoTracks()[0];
      if (track) track.addEventListener('ended', stopCapture);
      return;
    } catch (error) {
      setButtonState(false);
      const message = error?.name === 'NotAllowedError'
        ? 'Desktop capture was cancelled or blocked. Click Start desktop capture and choose a screen/window in the browser picker.'
        : `Desktop capture failed: ${error?.message || error}`;
      setCaptureStatus(message);
      console.warn('Desktop capture start failed:', error);
      if (stream) for (const track of stream.getTracks()) track.stop();
      state.video = null;
      state.stream = null;
      state.active = false;
      state.sessionStartedAt = null;
      state.loopPaused = false;
      if (state.previewTimer) {
        window.clearInterval(state.previewTimer);
        state.previewTimer = null;
      }
    }
  }

  function stopCapture() {
    window['__trackwhatDesktopCaptureTrace']?.('capture.stop', { active: state.active, analysisPending: state.analysisPending, scanTimer: Boolean(state.scanTimer), previewTimer: Boolean(state.previewTimer) });
    if (state.timer) { window.clearInterval(state.timer); state.timer = null; }
    if (state.analysisGuardTimer) { window.clearTimeout(state.analysisGuardTimer); state.analysisGuardTimer = null; }
    if (state.scanTimer) { window.clearTimeout(state.scanTimer); state.scanTimer = null; }
    if (state.previewTimer) { window.clearInterval(state.previewTimer); state.previewTimer = null; }
    stopCountdownTimer();
    if (state.analysisStartTimer) { window.clearTimeout(state.analysisStartTimer); state.analysisStartTimer = null; }
    setAnalysisPending(false);
      state.allowAnalysisClick = false;
      state.nextScanAt = null;
      state.loopPaused = false;
      state.sessionPausedMs = 0;
      state.sessionPauseStartedAt = null;
      if (state.stream) {
        for (const track of state.stream.getTracks()) track.stop();
        state.stream = null;
      }
    state.active = false;
    state.sessionStartedAt = null;
    state.lastProjectName = '';
    state.sameProjectStreak = 0;
    state.smartDelayMs = 0;
    setButtonState(false);
  }

  function pauseCaptureLoop() {
    if (!state.active || state.loopPaused) return;
    window['__trackwhatDesktopCaptureTrace']?.('capture.pause', {
      active: state.active,
      analysisPending: state.analysisPending,
      scanTimer: Boolean(state.scanTimer),
      previewTimer: Boolean(state.previewTimer),
    });
    state.loopPaused = true;
    state.sessionPauseStartedAt = Date.now();
    if (state.scanTimer) {
      window.clearTimeout(state.scanTimer);
      state.scanTimer = null;
    }
    if (state.previewTimer) {
      window.clearInterval(state.previewTimer);
      state.previewTimer = null;
    }
    clearScheduledScan();
    setButtonState(true);
    setLoopButtonState(true, true);
    updateCountdown();
    setCaptureStatus(`Desktop capture paused${captureModeSuffix()}. Click Resume loop to continue.`);
  }

  function resumeCaptureLoop() {
    if (!state.active || !state.loopPaused) return;
    window['__trackwhatDesktopCaptureTrace']?.('capture.resume', {
      active: state.active,
      analysisPending: state.analysisPending,
    });
    if (state.sessionPauseStartedAt) {
      state.sessionPausedMs = (state.sessionPausedMs || 0) + Math.max(0, Date.now() - state.sessionPauseStartedAt);
    }
    state.sessionPauseStartedAt = null;
    state.loopPaused = false;
    startLivePreviewLoop();
    setButtonState(true);
    setLoopButtonState(false, true);
    startCountdownTimer();
    if (!state.analysisPending) {
      scheduleNextScan();
    } else {
      updateCountdown();
    }
  }

  async function toggleCapture() {
    if (state.active) stopCapture();
    else await startCapture();
  }

  function toggleCaptureLoop() {
    if (!state.active) return;
    if (state.loopPaused) resumeCaptureLoop();
    else pauseCaptureLoop();
  }

  return { captureOnceAndAnalyze, captureAndAnalyze, startLivePreviewLoop, startCapture, stopCapture, toggleCapture, pauseCaptureLoop, resumeCaptureLoop, toggleCaptureLoop };
}