// screens-ingest.jsx — Upload, Recorders, Capture, Monitors

/* ===== Upload helpers ===== */
const _SIMPLE_MAX = 50 * 1024 * 1024;  // 50 MB → simple upload
const _PART_SIZE  = 10 * 1024 * 1024;  // 10 MB chunks for multipart

function _xhrPost(url, formData, onProgress) {
  return new Promise((resolve, reject) => {
    const xhr = new XMLHttpRequest();
    xhr.withCredentials = true;
    xhr.upload.onprogress = (e) => { if (e.lengthComputable) onProgress(e.loaded, e.total); };
    xhr.onload = () => {
      if (xhr.status >= 200 && xhr.status < 300) {
        try { resolve(JSON.parse(xhr.responseText)); } catch { resolve({}); }
      } else {
        let msg = xhr.status + ' ' + xhr.statusText;
        try { const j = JSON.parse(xhr.responseText); msg = j.error || j.message || msg; } catch {}
        reject(new Error(msg));
      }
    };
    xhr.onerror = () => reject(new Error('Network error'));
    xhr.open('POST', url);
    xhr.send(formData);
  });
}

async function _uploadFile(file, projectId, onProgress) {
  const mime = file.type || 'application/octet-stream';

  if (file.size <= _SIMPLE_MAX) {
    const fd = new FormData();
    fd.append('file', file, file.name);
    fd.append('filename', file.name);
    fd.append('projectId', projectId);
    fd.append('contentType', mime);
    return _xhrPost('/api/v1/upload/simple', fd,
      (loaded, total) => onProgress(Math.round((loaded / total) * 100)));
  }

  // — Multipart —
  const init = await window.ZAMPP_API.fetch('/upload/init', {
    method: 'POST',
    body: JSON.stringify({ filename: file.name, fileSize: file.size, contentType: mime, projectId }),
  });
  const { assetId, uploadId, key } = init;
  const totalParts = Math.ceil(file.size / _PART_SIZE);
  const parts = [];

  for (let i = 0; i < totalParts; i++) {
    const chunk = file.slice(i * _PART_SIZE, Math.min((i + 1) * _PART_SIZE, file.size));
    const fd = new FormData();
    fd.append('file', chunk, file.name);
    fd.append('uploadId', uploadId);
    fd.append('key', key);
    fd.append('partNumber', String(i + 1));
    const partRes = await _xhrPost('/api/v1/upload/part', fd,
      (loaded, total) => onProgress(Math.round(((i + loaded / total) / totalParts) * 100)));
    parts.push({ PartNumber: i + 1, ETag: partRes.etag || partRes.ETag });
  }

  await window.ZAMPP_API.fetch('/upload/complete', {
    method: 'POST',
    body: JSON.stringify({ uploadId, key, assetId, parts }),
  });
  return { id: assetId };
}

/* ===== Upload ===== */
function Upload({ navigate }) {
  const { PROJECTS } = window.ZAMPP_DATA;
  const [files, setFiles] = React.useState([]);
  const [projectId, setProjectId] = React.useState(PROJECTS[0]?.id || '');

  const updateFile = React.useCallback((id, patch) => {
    setFiles(prev => prev.map(f => f.id === id ? { ...f, ...patch } : f));
  }, []);

  const startUpload = React.useCallback((entry, pid) => {
    _uploadFile(entry.file, pid, (pct) => updateFile(entry.id, { progress: pct }))
      .then(() => updateFile(entry.id, { status: 'done', progress: 100 }))
      .catch(e => updateFile(entry.id, { status: 'error', progress: 0, error: e.message }));
  }, [updateFile]);

  const handleDrop = React.useCallback((e) => {
    e.preventDefault();
    const dropped = Array.from(e.dataTransfer ? e.dataTransfer.files : e.target.files);
    const pid = projectId || PROJECTS[0]?.id || '';
    const newEntries = dropped.map((f, i) => ({
      id: Date.now() + i,
      name: f.name,
      size: window.ZAMPP_API.fmtSize(f.size),
      file: f,
      progress: 0,
      status: 'uploading',
      error: null,
    }));
    setFiles(prev => [...prev, ...newEntries]);
    newEntries.forEach(entry => startUpload(entry, pid));
  }, [projectId, startUpload]);

  return (
    <div className="page">
      <div className="page-header">
        <h1>Upload</h1>
        <span className="subtitle">Drop video, audio, or stills — we proxy and index automatically.</span>
      </div>
      <div className="page-body">
        <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 12, marginBottom: 20 }}>
          <div>
            <label className="field-label">Project</label>
            <select className="field-input" value={projectId} onChange={e => setProjectId(e.target.value)}
              style={{ appearance: 'auto' }}>
              {PROJECTS.length === 0
                ? <option value="">No projects</option>
                : PROJECTS.map(p => <option key={p.id} value={p.id}>{p.name}</option>)}
            </select>
          </div>
        </div>

        <div className="dropzone"
          onDrop={handleDrop}
          onDragOver={e => e.preventDefault()}
          onClick={() => {
            const inp = document.createElement('input');
            inp.type = 'file'; inp.multiple = true;
            inp.onchange = handleDrop;
            inp.click();
          }}>
          <Icon name="upload" size={32} style={{ color: 'var(--text-3)' }} />
          <div style={{ fontSize: 15, fontWeight: 500 }}>Drop files here or click to browse</div>
          <div className="muted" style={{ fontSize: 12.5 }}>Video, audio, and image files</div>
          <div className="dropzone-formats">
            {['MOV', 'MP4', 'MXF', 'ProRes', 'DNxHR', 'WAV', 'AIFF'].map(f =>
              <span key={f} className="badge outline">{f}</span>)}
          </div>
        </div>

        {files.length > 0 && (
          <div style={{ marginTop: 24 }}>
            <div style={{ fontSize: 13, fontWeight: 600, marginBottom: 12, display: 'flex', alignItems: 'center', gap: 8 }}>
              Queue <span className="badge neutral">{files.length}</span>
              <span style={{ flex: 1 }} />
              <button className="btn ghost sm" onClick={() => setFiles(f => f.filter(x => x.status === 'uploading'))}>Clear done</button>
            </div>
            <div className="panel">
              {files.map(f => (
                <div key={f.id} className="upload-row">
                  <Icon name={f.name.match(/\.(wav|aif|mp3|aiff)$/i) ? 'audio' : 'video'} size={16}
                    style={{ color: 'var(--text-3)' }} />
                  <div style={{ flex: 1, minWidth: 0 }}>
                    <div style={{ display: 'flex', gap: 8, alignItems: 'center' }}>
                      <span style={{ fontWeight: 500, fontSize: 12.5 }}>{f.name}</span>
                      <span className="muted" style={{ fontSize: 11, fontFamily: 'var(--font-mono)' }}>{f.size}</span>
                    </div>
                    <div style={{ marginTop: 6, height: 4, background: 'var(--bg-3)', borderRadius: 99, overflow: 'hidden' }}>
                      <div style={{
                        width: f.progress + '%', height: '100%',
                        background: f.status === 'done' ? 'var(--success)' : f.status === 'error' ? 'var(--danger)' : 'var(--accent)',
                        transition: 'width 200ms',
                      }} />
                    </div>
                    {f.status === 'error' && (
                      <div style={{ marginTop: 3, fontSize: 11, color: 'var(--danger)' }}>{f.error}</div>
                    )}
                  </div>
                  <span className="mono" style={{
                    fontSize: 11.5, minWidth: 60, textAlign: 'right',
                    color: f.status === 'done' ? 'var(--success)' : f.status === 'error' ? 'var(--danger)' : 'var(--text-3)',
                  }}>
                    {f.status === 'done' ? '✓ done'
                     : f.status === 'error' ? '✗ failed'
                     : f.progress + '%'}
                  </span>
                </div>
              ))}
            </div>
          </div>
        )}
      </div>
    </div>
  );
}

/* ===== Recorders ===== */
function _normRecorder(r) {
  let elapsed = '—';
  if (r.status === 'recording' && r.started_at) {
    const s = Math.floor((Date.now() - new Date(r.started_at)) / 1000);
    elapsed = String(Math.floor(s / 3600)).padStart(2, '0') + ':' +
              String(Math.floor((s % 3600) / 60)).padStart(2, '00') + ':' +
              String(s % 60).padStart(2, '0');
  }
  const cfg = r.source_config || {};
  return {
    ...r,
    source: r.source_type || '—',
    url: cfg.url || cfg.address || cfg.srt_url || cfg.rtmp_url || r.source_type || '—',
    codec: r.recording_codec || '—',
    res: r.recording_resolution || '—',
    node: r.node_id ? r.node_id.slice(0, 8) : 'primary',
    elapsed,
    bitrate: '—',
    health: 100,
    audio: false,
  };
}

function Recorders({ navigate, onNew }) {
  const [recorders, setRecorders] = React.useState(window.ZAMPP_DATA.RECORDERS);

  const refresh = React.useCallback(() => {
    window.ZAMPP_API.fetch('/recorders')
      .then(raw => {
        const norm = (raw || []).map(_normRecorder);
        window.ZAMPP_DATA.RECORDERS = norm;
        setRecorders(norm);
      })
      .catch(() => {});
  }, []);

  React.useEffect(() => {
    refresh();
    const id = setInterval(refresh, 10000);
    return () => clearInterval(id);
  }, []);

  const liveCount = recorders.filter(r => r.status === 'recording').length;
  const errCount  = recorders.filter(r => r.status === 'error').length;

  return (
    <div className="page">
      <div className="page-header">
        <h1>Recorders</h1>
        <span className="subtitle">Live ingest from SRT, RTMP, and SDI sources</span>
        <div className="spacer" />
        {(liveCount > 0 || errCount > 0) && (
          <div className="status-pip">
            <span className="dot" />
            <span>{liveCount > 0 ? liveCount + ' recording' : ''}{errCount > 0 ? (liveCount > 0 ? ' · ' : '') + errCount + ' error' : ''}</span>
          </div>
        )}
        <button className="btn ghost sm" onClick={refresh}><Icon name="refresh" />Refresh</button>
        <button className="btn primary" onClick={onNew}><Icon name="plus" />New recorder</button>
      </div>
      <div className="page-body">
        {recorders.length === 0 ? (
          <div style={{ padding: 60, textAlign: 'center', color: 'var(--text-3)' }}>
            No recorders configured.
            <div style={{ marginTop: 12 }}><button className="btn primary" onClick={onNew}><Icon name="plus" />Add recorder</button></div>
          </div>
        ) : (
          <div className="recorders-list">
            {recorders.map(r => <RecorderRow key={r.id} recorder={r} onRefresh={refresh} />)}
          </div>
        )}
      </div>
    </div>
  );
}

function RecorderRow({ recorder: initialRecorder, onRefresh }) {
  const [recorder, setRecorder] = React.useState(initialRecorder);
  const [pending, setPending] = React.useState(false);
  const [err, setErr] = React.useState(null);
  const [liveStatus, setLiveStatus] = React.useState(null);
  const isRec = recorder.status === 'recording';

  React.useEffect(() => { setRecorder(initialRecorder); }, [initialRecorder.id, initialRecorder.status]);

  // Poll the status endpoint every 3s while recording for live feedback.
  React.useEffect(() => {
    if (!isRec) { setLiveStatus(null); return; }
    const poll = () => {
      window.ZAMPP_API.fetch('/recorders/' + recorder.id + '/status')
        .then(s => setLiveStatus(s))
        .catch(() => {});
    };
    poll();
    const id = setInterval(poll, 3000);
    return () => clearInterval(id);
  }, [isRec, recorder.id]);

  const displayElapsed = React.useMemo(() => {
    if (liveStatus && liveStatus.duration != null) {
      const d = Math.max(0, liveStatus.duration);
      return String(Math.floor(d / 3600)).padStart(2, '0') + ':' +
             String(Math.floor((d % 3600) / 60)).padStart(2, '0') + ':' +
             String(d % 60).padStart(2, '0');
    }
    return recorder.elapsed;
  }, [liveStatus, recorder.elapsed]);

  const displaySignal = liveStatus
    ? (liveStatus.signal || '—')
    : (isRec ? 'connecting…' : '—');

  const signalColor = displaySignal === 'receiving' ? 'var(--success)'
    : displaySignal === 'stopped' ? 'var(--danger)'
    : 'var(--text-3)';

  const toggle = () => {
    if (pending) return;
    const action = isRec ? 'stop' : 'start';
    setPending(true);
    setErr(null);
    setRecorder(r => ({ ...r, status: isRec ? 'idle' : 'recording' }));
    window.ZAMPP_API.fetch('/recorders/' + recorder.id + '/' + action, { method: 'POST' })
      .then(() => { setPending(false); onRefresh(); })
      .catch(e => { setPending(false); setErr(e.message || 'Failed'); setRecorder(initialRecorder); });
  };

  const handleDelete = () => {
    if (!window.confirm('Delete recorder "' + recorder.name + '"?\nThis will stop any active recording and cannot be undone.')) return;
    window.ZAMPP_API.fetch('/recorders/' + recorder.id, { method: 'DELETE' })
      .then(() => onRefresh())
      .catch(e => setErr(e.message || 'Delete failed'));
  };

  return (
    <div className={'recorder-row ' + recorder.status}>
      <div className="recorder-preview">
        {isRec
          ? <LiveStrip seed={recorder.id.length * 3} count={6} />
          : <div className="recorder-empty"><Icon name={recorder.status === 'error' ? 'alert' : 'video'} size={20} style={{ opacity: 0.4 }} /></div>}
      </div>
      <div className="recorder-info">
        <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
          <span style={{ fontWeight: 600, fontSize: 13 }}>{recorder.name}</span>
          <span className={'badge ' + badgeForStatus(recorder.status)}>
            <StatusDot status={recorder.status} /> {recorder.status.toUpperCase()}
          </span>
          <span className="badge outline">{recorder.source}</span>
        </div>
        <div className="recorder-sub mono">{recorder.url}</div>
        <div className="recorder-sub">
          <span>{recorder.codec}</span><span>·</span>
          <span>{recorder.res}</span>
        </div>
        {err && <div style={{ marginTop: 4, fontSize: 11, color: 'var(--danger)' }}>{err}</div>}
        {liveStatus?.lastError && isRec && (
          <div style={{ marginTop: 4, fontSize: 11, color: 'var(--danger)' }}>{liveStatus.lastError}</div>
        )}
      </div>
      <div className="recorder-stats">
        <div className="recorder-stat">
          <div className="stat-label">Elapsed</div>
          <div className="stat-val mono">{displayElapsed}</div>
        </div>
        <div className="recorder-stat">
          <div className="stat-label">Signal</div>
          <div className="stat-val" style={{ fontSize: 11, color: signalColor }}>{displaySignal}</div>
        </div>
        {liveStatus?.currentFps != null && (
          <div className="recorder-stat">
            <div className="stat-label">FPS</div>
            <div className="stat-val mono">{Number(liveStatus.currentFps).toFixed(1)}</div>
          </div>
        )}
      </div>
      <div className="recorder-actions">
        {isRec
          ? <button className="btn danger sm" onClick={toggle} disabled={pending}>
              {pending ? '…' : <><span className="rec-dot" />Stop</>}
            </button>
          : <button className="btn subtle sm" onClick={toggle} disabled={pending}>
              {pending ? '…' : <><span className="rec-dot" style={{ background: 'var(--live)' }} />Record</>}
            </button>}
        <button className="icon-btn" onClick={handleDelete} title="Delete recorder" style={{ color: 'var(--text-3)' }}>
          <Icon name="x" />
        </button>
      </div>
    </div>
  );
}

function badgeForStatus(s) {
  return { recording: 'live', armed: 'accent', idle: 'neutral', error: 'danger', offline: 'neutral', stopped: 'neutral' }[s] || 'neutral';
}

/* ===== Capture ===== */
function Capture({ navigate }) {
  const [devices, setDevices] = React.useState([]);
  const [activeIdx, setActiveIdx] = React.useState(0);

  const loadDevices = () => {
    window.ZAMPP_API.fetch('/cluster/devices/blackmagic')
      .then(devs => setDevices(Array.isArray(devs) ? devs : []))
      .catch(() => setDevices([]));
  };

  React.useEffect(() => { loadDevices(); }, []);

  if (devices.length === 0) {
    return (
      <div className="page">
        <div className="page-header">
          <h1>Capture</h1>
          <span className="subtitle">DeckLink SDI ingest</span>
          <div className="spacer" />
          <button className="btn ghost sm" onClick={loadDevices}><Icon name="refresh" />Refresh</button>
        </div>
        <div className="page-body">
          <div style={{ padding: 60, textAlign: 'center', color: 'var(--text-3)' }}>
            No DeckLink devices found in cluster.
          </div>
        </div>
      </div>
    );
  }

  const active = devices[activeIdx] || devices[0];

  return (
    <div className="page">
      <div className="page-header">
        <h1>Capture</h1>
        <span className="subtitle">DeckLink SDI ingest — {devices.length} device{devices.length > 1 ? 's' : ''} in cluster</span>
        <div className="spacer" />
        <button className="btn ghost sm" onClick={loadDevices}><Icon name="refresh" />Refresh</button>
      </div>
      <div className="page-body">
        <div style={{ display: 'flex', gap: 12, flexWrap: 'wrap', marginBottom: 20 }}>
          {devices.map((d, i) => (
            <button key={i} className={'btn ' + (activeIdx === i ? 'primary' : 'ghost') + ' sm'} onClick={() => setActiveIdx(i)}>
              {d.model || d.device || 'DeckLink'} — {d.hostname}
            </button>
          ))}
        </div>
        <div className="panel" style={{ padding: 20 }}>
          <div style={{ display: 'flex', alignItems: 'center', gap: 12, marginBottom: 16 }}>
            <StatusDot status={active.online ? 'online' : 'offline'} />
            <div>
              <div style={{ fontWeight: 600 }}>{active.model || active.device || 'DeckLink'}</div>
              <div className="mono" style={{ fontSize: 11, color: 'var(--text-3)' }}>{active.hostname} · {active.ip_address}</div>
            </div>
          </div>
          <div style={{ color: 'var(--text-3)', fontSize: 12.5 }}>Connect a source and click Refresh to see port status.</div>
        </div>
      </div>
    </div>
  );
}

/* ===== Monitors ===== */
function Monitors({ navigate }) {
  const [recorders, setRecorders] = React.useState(window.ZAMPP_DATA.RECORDERS);
  const [grid, setGrid] = React.useState(4);

  React.useEffect(() => {
    const refresh = () => {
      window.ZAMPP_API.fetch('/recorders')
        .then(raw => {
          const norm = (raw || []).map(_normRecorder);
          window.ZAMPP_DATA.RECORDERS = norm;
          setRecorders(norm);
        })
        .catch(() => {});
    };
    refresh();
    const id = setInterval(refresh, 5000);
    return () => clearInterval(id);
  }, []);

  const videoFeeds = recorders.filter(r => !r.audio);
  const audioFeeds = recorders.filter(r => r.audio).map(r => ({ ...r, kind: 'audio' }));
  const allFeeds = [...videoFeeds.map(r => ({ ...r, kind: 'video' })), ...audioFeeds];
  const feeds = allFeeds.slice(0, grid * grid);

  return (
    <div className="page">
      <div className="page-header">
        <h1>Monitors</h1>
        <span className="subtitle">Multi-cam live monitoring</span>
        <div className="spacer" />
        <div className="tab-group">
          {[2, 3, 4].map(n => (
            <button key={n} className={grid === n ? 'active' : ''} onClick={() => setGrid(n)}>{n}×{n}</button>
          ))}
        </div>
      </div>
      <div className="page-body">
        {feeds.length === 0 ? (
          <div style={{ padding: 60, textAlign: 'center', color: 'var(--text-3)' }}>No active feeds. Start a recorder to see live video here.</div>
        ) : (
          <div className="monitors-grid" style={{ display: 'grid', gridTemplateColumns: 'repeat(' + grid + ', 1fr)', gap: 8 }}>
            {feeds.map((f, i) => <MonitorTile key={f.id} feed={f} seed={i + 1} />)}
          </div>
        )}
      </div>
    </div>
  );
}

function MonitorTile({ feed, seed }) {
  const [levels, setLevels] = React.useState([0.65, 0.78]);
  const isLive = feed.status === 'recording';

  React.useEffect(() => {
    if (!isLive) return;
    const id = setInterval(() => {
      setLevels([0.3 + Math.random() * 0.55, 0.3 + Math.random() * 0.55]);
    }, 180);
    return () => clearInterval(id);
  }, [isLive]);

  if (feed.kind === 'audio') {
    return (
      <div className="monitor-tile audio">
        <div style={{ flex: 1, display: 'grid', placeItems: 'center', padding: 24 }}>
          <Waveform seed={seed * 7} color="var(--accent)" />
        </div>
        <div style={{ display: 'flex', gap: 4, padding: '0 16px 16px', justifyContent: 'center' }}>
          <AudioMeter level={levels[0]} vertical />
          <AudioMeter level={levels[1]} vertical />
        </div>
        <div className="monitor-tile-label">
          <span className="badge live">LIVE</span>
          <span className="name">{feed.name}</span>
        </div>
      </div>
    );
  }

  return (
    <div className="monitor-tile">
      <FauxFrame />
      {isLive && <div style={{ position: 'absolute', inset: 0, border: '2px solid var(--live)', pointerEvents: 'none', borderRadius: 'inherit' }} />}
      <div style={{ position: 'absolute', top: 8, left: 8, display: 'flex', gap: 6 }}>
        {isLive                    && <span className="badge live">REC</span>}
        {feed.status === 'stopped' && <span className="badge neutral">IDLE</span>}
        {feed.status === 'idle'    && <span className="badge neutral">IDLE</span>}
        {feed.status === 'error'   && <span className="badge danger">ERR</span>}
      </div>
      {isLive && (
        <div style={{ position: 'absolute', top: 8, right: 8, display: 'flex', gap: 4 }}>
          <AudioMeter level={levels[0]} vertical />
          <AudioMeter level={levels[1]} vertical />
        </div>
      )}
      <div className="monitor-tile-label">
        <span className="name">{feed.name}</span>
        {feed.elapsed && feed.elapsed !== '—' && <span className="time mono">{feed.elapsed}</span>}
      </div>
    </div>
  );
}

Object.assign(window, { Upload, Recorders, Capture, Monitors });