// modal-new-recorder.jsx - New Recorder dialog (SRT / RTMP / SDI / Deltacast)

/**
 * DevicePortPicker - groups a flat per-port API response by node_id and
 * renders one button per actual port. Replaces the old code that iterated
 * over entries and synthesised port counts, which caused duplicate groups.
 *
 * props:
 *   ports        - flat array from /cluster/devices/blackmagic or /deltacast
 *                  each entry: { node_id, hostname, model, index, device, present? }
 *   selectedIdx  - currently selected device_index
 *   selectedNode - currently selected node_id
 *   onSelect(idx, nodeId)
 *   portLabel    - e.g. "SDI" or "Port"
 *   showTestBadge - show TEST CARD badge when present===false
 */
function DevicePortPicker({ ports, selectedIdx, selectedNode, onSelect, portLabel = 'Port', showTestBadge = false }) {
  // Group by node_id (stable - one group per physical node)
  const groups = React.useMemo(() => {
    const map = new Map();
    for (const p of ports) {
      const key = p.node_id || p.hostname || 'unknown';
      if (!map.has(key)) map.set(key, { nodeId: p.node_id || p.hostname || '', hostname: p.hostname || key, model: p.model || '', ports: [] });
      map.get(key).ports.push(p);
    }
    // Sort ports within each group by index
    for (const g of map.values()) g.ports.sort((a, b) => a.index - b.index);
    return Array.from(map.values());
  }, [ports]);

  return (
    <div className="sdi-port-mini">
      {groups.map(group => (
        <div key={group.nodeId} style={{ marginBottom: groups.length > 1 ? 12 : 4 }}>
          {/* Node header: only show when multiple groups, or always for clarity */}
          <div style={{ fontSize: 10, fontWeight: 700, letterSpacing: '0.08em', color: 'var(--text-3)', textTransform: 'uppercase', padding: '0 0 6px' }}>
            {group.model ? group.model.toUpperCase() + ' · ' : ''}{group.hostname}
          </div>
          {group.ports.map(port => {
            const active = selectedIdx === port.index && selectedNode === group.nodeId;
            return (
              <button key={port.index}
                className={`sdi-mini-port${active ? ' active' : ''}`}
                onClick={() => onSelect(port.index, group.nodeId)}>
                <span className="sdi-mini-radio"><span className="sdi-mini-radio-dot" /></span>
                <span style={{ fontSize: 12, fontWeight: 600 }}>
                  {portLabel} {port.index + 1}
                  {showTestBadge && port.present === false && (
                    <span style={{ fontSize: 9, fontWeight: 700, letterSpacing: '0.06em', color: 'var(--accent)', background: 'var(--accent-soft)', borderRadius: 3, padding: '1px 5px', marginLeft: 7 }}>
                      TEST CARD
                    </span>
                  )}
                </span>
                <span style={{ fontSize: 11, color: 'var(--text-3)', marginLeft: 'auto', fontFamily: 'var(--font-mono)' }}>
                  {port.device ? port.device.split('/').pop() : `index ${port.index}`}
                </span>
              </button>
            );
          })}
        </div>
      ))}
    </div>
  );
}

/**
 * ManualDevicePicker - fallback when no devices detected. Lets the operator
 * pick node + index from dropdowns.
 */
function ManualDevicePicker({ nodes, nodeId, deviceIdx, portLabel, portCount, onNodeChange, onIdxChange, emptyNote }) {
  return (
    <div style={{ padding: '4px 0' }}>
      <div style={{ fontSize: 12, color: 'var(--text-3)', marginBottom: 10 }}>
        {emptyNote || `No ${portLabel} devices auto-detected. Configure manually:`}
      </div>
      <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
        <div className="field">
          <label className="field-label">Capture node</label>
          <select className="field-input" value={nodeId}
            onChange={e => onNodeChange(e.target.value)} style={{ appearance: 'auto' }}>
            {nodes.length === 0
              ? <option value="">No cluster nodes</option>
              : nodes.map(n => {
                  const id = n.id || n.hostname || n.name || '';
                  return <option key={id} value={id}>{n.hostname || n.name || id}</option>;
                })}
          </select>
        </div>
        <div className="field">
          <label className="field-label">{portLabel} index</label>
          <select className="field-input" value={deviceIdx}
            onChange={e => onIdxChange(Number(e.target.value))} style={{ appearance: 'auto' }}>
            {Array.from({ length: portCount }, (_, i) =>
              <option key={i} value={i}>{portLabel} {i + 1} (index {i})</option>)}
          </select>
        </div>
      </div>
    </div>
  );
}

function ProbeResult({ result }) {
  if (!result.ok) {
    return (
      <div style={{ marginTop: 6, padding: '8px 10px', background: 'var(--danger-soft)', border: '1px solid var(--danger)', borderRadius: 5, fontSize: 11.5, color: 'var(--danger)' }}>
        Probe failed: {result.error}
      </div>
    );
  }
  const d = result.data || {};
  const entries = Object.entries(d).filter(([, v]) => v !== null && typeof v !== 'object');
  if (entries.length === 0) {
    return (
      <div style={{ marginTop: 6, padding: '8px 10px', background: 'var(--success-soft)', border: '1px solid var(--success)', borderRadius: 5, fontSize: 11.5, color: 'var(--success)' }}>
        ✓ Source reachable
      </div>
    );
  }
  return (
    <div style={{ marginTop: 6, padding: '10px 12px', background: 'var(--bg-2)', border: '1px solid var(--success)', borderRadius: 5, fontSize: 11.5 }}>
      {entries.map(([k, v]) => (
        <div key={k} style={{ display: 'flex', gap: 8, padding: '2px 0' }}>
          <span style={{ color: 'var(--text-3)', minWidth: 100, flexShrink: 0 }}>{k}</span>
          <span style={{ fontFamily: 'var(--font-mono)', fontSize: 11 }}>{String(v)}</span>
        </div>
      ))}
    </div>
  );
}

function NewRecorderModal({ open, onClose }) {
  const PROJECTS = window.ZAMPP_DATA?.PROJECTS || [];
  const NODES    = window.ZAMPP_DATA?.NODES    || [];
  const [name, setName] = React.useState('');
  const [sourceType, setSourceType] = React.useState('SRT');
  const [srtUrl, setSrtUrl] = React.useState('srt://10.0.4.18:4200');
  const [rtmpUrl, setRtmpUrl] = React.useState('rtmp://stream.local/live/cam_a');
  const [sdiDeviceIdx, setSdiDeviceIdx] = React.useState(0);
  const [sdiNodeId, setSdiNodeId] = React.useState(() => {
    const n = NODES[0];
    return n ? (n.id || n.hostname || '') : '';
  });
  const [sdiDevices, setSdiDevices] = React.useState(null);
  const [dcDeviceIdx, setDcDeviceIdx] = React.useState(0);
  const [dcNodeId, setDcNodeId] = React.useState(() => {
    const n = NODES[0];
    return n ? (n.id || n.hostname || '') : '';
  });
  const [dcDevices, setDcDevices] = React.useState(null);
  const [recTab, setRecTab] = React.useState('video');
  // All-Intra HEVC (NVENC) is the default master — GPU-encoded, growing-file
  // capable in fragmented MOV. ProRes stays selectable for 4:2:2 mezzanine.
  const [recCodec, setRecCodec] = React.useState('hevc_nvenc');
  // Custom target bitrate in Mbps for bitrate-controlled codecs (NVENC / x264 /
  // x265 / DNxHD). ProRes ignores bitrate (quality is profile-driven).
  const [recBitrate, setRecBitrate] = React.useState('60');
  // Container is derived from the codec, not manually chosen: HEVC/ProRes/DNxHR
  // → MOV (fragmented, growing-capable); H.264 → MP4.
  const recContainer = (recCodec === 'h264' || recCodec === 'h264_nvenc' || recCodec === 'libx264') ? 'mp4' : 'mov';
  // Codecs whose bitrate is operator-controlled (everything except ProRes).
  const BITRATE_CODECS = new Set(['hevc_nvenc', 'h264_nvenc', 'libx264', 'libx265', 'dnxhd', 'dnxhr_hq']);
  const codecUsesBitrate = BITRATE_CODECS.has(recCodec);
  const [proxyOn, setProxyOn] = React.useState(true);
  const [projectId, setProjectId] = React.useState(PROJECTS[0]?.id || '');
  const [submitting, setSubmitting] = React.useState(false);
  const [submitErr, setSubmitErr] = React.useState(null);
  const [probing, setProbing] = React.useState(false);
  const [probeResult, setProbeResult] = React.useState(null);

  React.useEffect(() => {
    if (sourceType !== 'SDI' || sdiDevices !== null) return;
    window.ZAMPP_API.fetch('/cluster/devices/blackmagic')
      .then(d => setSdiDevices(Array.isArray(d) ? d : []))
      .catch(() => setSdiDevices([]));
  }, [sourceType]);

  React.useEffect(() => {
    if (sourceType !== 'DELTACAST' || dcDevices !== null) return;
    window.ZAMPP_API.fetch('/cluster/devices/deltacast')
      .then(d => setDcDevices(Array.isArray(d) ? d : []))
      .catch(() => setDcDevices([]));
  }, [sourceType]);

  React.useEffect(() => { setProbeResult(null); }, [sourceType, srtUrl, rtmpUrl]);

  const handleProbe = () => {
    setProbing(true);
    setProbeResult(null);
    const body = sourceType === 'SRT'
      ? { source_type: 'srt', url: srtUrl }
      : { source_type: 'rtmp', url: rtmpUrl };
    window.ZAMPP_API.fetch('/recorders/probe', { method: 'POST', body: JSON.stringify(body) })
      .then(r => { setProbing(false); setProbeResult({ ok: true, data: r }); })
      .catch(e => { setProbing(false); setProbeResult({ ok: false, error: e.message }); });
  };

  const handleCreate = () => {
    if (!name.trim()) { setSubmitErr('Recorder name is required.'); return; }
    if (sourceType === 'SDI' && !sdiNodeId) { setSubmitErr('Select a capture node for SDI.'); return; }
    if (sourceType === 'DELTACAST' && !dcNodeId) { setSubmitErr('Select a capture node for Deltacast.'); return; }
    setSubmitting(true);
    setSubmitErr(null);

    const body = {
      name: name.trim(),
      source_type: sourceType.toLowerCase(),
      project_id: projectId || undefined,
      generate_proxy: proxyOn,
      recording_codec: recCodec,
      recording_container: recContainer,
      // Framerate + resolution are auto-detected from the source signal/stream.
      recording_framerate: '',          // empty = match source
      recording_resolution: 'native',
    };
    // Custom bitrate only applies to bitrate-controlled codecs (ProRes ignores it).
    if (codecUsesBitrate && recBitrate) {
      body.recording_video_bitrate = `${recBitrate}M`;
    }

    if (sourceType === 'SRT') {
      body.source_config = { url: srtUrl };
    } else if (sourceType === 'RTMP') {
      body.source_config = { url: rtmpUrl };
    } else if (sourceType === 'DELTACAST') {
      body.source_config = {};
      body.device_index = dcDeviceIdx;
      body.node_id = dcNodeId || undefined;
    } else {
      // SDI (DeckLink): device_index and node_id are top-level fields
      body.source_config = {};
      body.device_index = sdiDeviceIdx;
      body.node_id = sdiNodeId || undefined;
    }

    window.ZAMPP_API.fetch('/recorders', { method: 'POST', body: JSON.stringify(body) })
      .then(() => {
        setSubmitting(false);
        // Recorders list listens for this and re-fetches; otherwise the
        // operator has to wait for the next 10s poll tick to see the new row.
        window.dispatchEvent(new CustomEvent('df:recorders-changed'));
        onClose();
      })
      .catch(e => { setSubmitting(false); setSubmitErr(e.message || 'Failed to create recorder'); });
  };

  if (!open) return null;

  return (
    <div className="modal-backdrop" onClick={onClose}>
      <div className="modal" onClick={e => e.stopPropagation()}>
        <div className="modal-head">
          <div>
            <div style={{ fontSize: 15, fontWeight: 600 }}>New recorder</div>
            <div style={{ fontSize: 12, color: 'var(--text-3)', marginTop: 2 }}>Configure source, codec, and destination</div>
          </div>
          <button className="icon-btn" aria-label="Close" onClick={onClose}><Icon name="x" /></button>
        </div>

        <div className="modal-body">
          <div className="field">
            <label className="field-label">Recorder name</label>
            <input className="field-input" placeholder="e.g. Studio A Stage Cam"
              value={name} onChange={e => setName(e.target.value)} />
          </div>

          <div className="field">
            <label className="field-label">Source type</label>
            <div className="source-type-grid">
              {[
                { id: 'SRT',       label: 'SRT',       desc: 'Secure Reliable Transport · pull caller', icon: 'signal' },
                { id: 'RTMP',      label: 'RTMP',      desc: 'Real-Time Messaging Protocol',             icon: 'globe' },
                { id: 'SDI',       label: 'SDI',        desc: 'Blackmagic DeckLink hardware',            icon: 'video' },
                { id: 'DELTACAST', label: 'Deltacast',  desc: 'Deltacast VideoMaster SDI',               icon: 'video' },
              ].map(t => (
                <button key={t.id}
                  className={`source-type-card ${sourceType === t.id ? 'active' : ''}`}
                  onClick={() => setSourceType(t.id)}>
                  <div className="source-type-icon"><Icon name={t.icon} size={16} /></div>
                  <div>
                    <div style={{ fontWeight: 600, fontSize: 13 }}>{t.label}</div>
                    <div style={{ fontSize: 11, color: 'var(--text-3)', marginTop: 2 }}>{t.desc}</div>
                  </div>
                </button>
              ))}
            </div>
          </div>

          {sourceType === 'SRT' && (
            <div className="field">
              <label className="field-label">Source URL</label>
              <div style={{ display: 'flex', gap: 6 }}>
                <input className="field-input mono" placeholder="srt://192.168.1.100:4200"
                  value={srtUrl} onChange={e => setSrtUrl(e.target.value)} style={{ flex: 1 }} />
                <button className="btn ghost sm" onClick={handleProbe} disabled={probing}
                  style={{ flexShrink: 0, minWidth: 64 }}>
                  {probing ? '…' : 'Probe'}
                </button>
              </div>
              <div style={{ fontSize: 11, color: 'var(--text-3)', marginTop: 4 }}>
                Recorder connects out to this URL (caller mode).
              </div>
              {probeResult && <ProbeResult result={probeResult} />}
            </div>
          )}

          {sourceType === 'RTMP' && (
            <div className="field">
              <label className="field-label">Source URL</label>
              <div style={{ display: 'flex', gap: 6 }}>
                <input className="field-input mono" placeholder="rtmp://server/live/streamkey"
                  value={rtmpUrl} onChange={e => setRtmpUrl(e.target.value)} style={{ flex: 1 }} />
                <button className="btn ghost sm" onClick={handleProbe} disabled={probing}
                  style={{ flexShrink: 0, minWidth: 64 }}>
                  {probing ? '…' : 'Probe'}
                </button>
              </div>
              <div style={{ fontSize: 11, color: 'var(--text-3)', marginTop: 4 }}>
                Recorder pulls this RTMP stream.
              </div>
              {probeResult && <ProbeResult result={probeResult} />}
            </div>
          )}

          {sourceType === 'SDI' && (
            <div className="field">
              <label className="field-label">Capture device</label>
              {sdiDevices === null && (
                <div style={{ padding: '10px 0', color: 'var(--text-3)', fontSize: 12 }}>Detecting DeckLink devices…</div>
              )}
              {sdiDevices !== null && sdiDevices.length > 0 && (
                <DevicePortPicker
                  ports={sdiDevices}
                  selectedIdx={sdiDeviceIdx}
                  selectedNode={sdiNodeId}
                  onSelect={(idx, nodeId) => { setSdiDeviceIdx(idx); setSdiNodeId(nodeId); }}
                  portLabel="SDI"
                />
              )}
              {sdiDevices !== null && sdiDevices.length === 0 && (
                <ManualDevicePicker
                  nodes={NODES}
                  nodeId={sdiNodeId}
                  deviceIdx={sdiDeviceIdx}
                  portLabel="SDI"
                  portCount={4}
                  onNodeChange={setSdiNodeId}
                  onIdxChange={setSdiDeviceIdx}
                />
              )}
            </div>
          )}

          {sourceType === 'DELTACAST' && (
            <div className="field">
              <label className="field-label">Capture device</label>
              {dcDevices === null && (
                <div style={{ padding: '10px 0', color: 'var(--text-3)', fontSize: 12 }}>Detecting Deltacast devices…</div>
              )}
              {dcDevices !== null && dcDevices.length > 0 && (
                <DevicePortPicker
                  ports={dcDevices}
                  selectedIdx={dcDeviceIdx}
                  selectedNode={dcNodeId}
                  onSelect={(idx, nodeId) => { setDcDeviceIdx(idx); setDcNodeId(nodeId); }}
                  portLabel="Port"
                  showTestBadge
                />
              )}
              {dcDevices !== null && dcDevices.length === 0 && (
                <ManualDevicePicker
                  nodes={NODES}
                  nodeId={dcNodeId}
                  deviceIdx={dcDeviceIdx}
                  portLabel="Port"
                  portCount={8}
                  onNodeChange={setDcNodeId}
                  onIdxChange={setDcDeviceIdx}
                  emptyNote="No Deltacast devices detected. Configure manually (test-card mode):"
                />
              )}
            </div>
          )}

          <div className="modal-section">
            <div className="modal-section-head">
              <span>Master recording</span>
              <span style={{ flex: 1 }} />
              <div className="tab-group">
                {['video', 'audio', 'container'].map(t => (
                  <button key={t} className={recTab === t ? 'active' : ''} onClick={() => setRecTab(t)}>
                    {t[0].toUpperCase() + t.slice(1)}
                  </button>
                ))}
              </div>
            </div>
            <div className="modal-section-body">
              {recTab === 'video' && (
                <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
                  <div className="field">
                    <label className="field-label">Video codec</label>
                    <select className="field-input" value={recCodec} onChange={e => setRecCodec(e.target.value)} style={{ appearance: 'auto' }}>
                      <option value="hevc_nvenc">All-Intra HEVC (NVENC) — GPU, growing</option>
                      <option value="h264_nvenc">H.264 (NVENC) — GPU</option>
                      <option value="prores_hq">ProRes 422 HQ — 4:2:2 CPU</option>
                      <option value="prores">ProRes 422</option>
                      <option value="prores_lt">ProRes 422 LT</option>
                      <option value="prores_proxy">ProRes 422 Proxy</option>
                      <option value="dnxhr_hq">DNxHR HQ</option>
                      <option value="libx264">H.264 (x264, CPU)</option>
                      <option value="libx265">H.265 (x265, CPU)</option>
                    </select>
                  </div>
                  {codecUsesBitrate ? (
                    <div className="field">
                      <label className="field-label">Target bitrate (Mbps)</label>
                      <input
                        className="field-input"
                        type="number" min="1" max="400" step="1"
                        value={recBitrate}
                        onChange={e => setRecBitrate(e.target.value)}
                      />
                    </div>
                  ) : (
                    <Field label="Bitrate" value="Quality-based (profile)" select />
                  )}
                  <Field label="Resolution" value="Auto — from source" select />
                  <Field label="Framerate" value="Auto — from source" select />
                  {/* #3: warn when the configured bitrate exceeds the probed source
                      bitrate — re-encoding above source adds storage, not quality. */}
                  {codecUsesBitrate && (() => {
                    const d = probeResult && probeResult.ok ? (probeResult.data || {}) : null;
                    const raw = d && (d.bitrate ?? d.bit_rate ?? d.video_bitrate ?? (d.video && d.video.bit_rate));
                    const srcMbps = raw ? (Number(raw) > 100000 ? Number(raw) / 1e6 : Number(raw)) : null;
                    const cfg = parseFloat(recBitrate);
                    if (srcMbps && cfg && cfg > srcMbps * 1.05) {
                      return (
                        <div style={{ gridColumn: '1 / -1', fontSize: 11.5, color: 'var(--warn, #d9a441)', border: '1px solid var(--warn, #d9a441)', borderRadius: 6, padding: '8px 10px', background: 'rgba(217,164,65,0.08)' }}>
                          ⚠ Target {cfg} Mbps exceeds the source stream (~{srcMbps.toFixed(1)} Mbps). Encoding above the source bitrate increases file size without adding quality.
                        </div>
                      );
                    }
                    return null;
                  })()}
                </div>
              )}
              {recTab === 'audio' && (
                <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
                  <Field label="Audio codec" value="PCM" select />
                  <Field label="Sample rate" value="48 kHz" select />
                  <Field label="Channels" value="2.0 stereo" select />
                  <Field label="Bit depth" value="24-bit" select />
                </div>
              )}
              {recTab === 'container' && (
                <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
                  <Field label="Container" value={recContainer === 'mp4' ? 'MP4 (auto)' : 'Fragmented MOV (auto)'} select />
                  <Field label="Growing-file" value={recContainer === 'mov' ? 'Supported (edit-while-record)' : 'No'} select />
                </div>
              )}
            </div>
          </div>

          <div className="modal-toggle-row">
            <label className="switch">
              <input type="checkbox" checked={proxyOn} onChange={e => setProxyOn(e.target.checked)} />
              <span className="switch-track"><span className="switch-knob" /></span>
            </label>
            <div>
              <div style={{ fontWeight: 500, fontSize: 13 }}>Generate proxy</div>
              <div style={{ fontSize: 11, color: 'var(--text-3)' }}>
                SDI sources record proxy in parallel. Network sources generate proxy after stop.
              </div>
            </div>
          </div>

          {proxyOn && (
            <div className="modal-section">
              <div className="modal-section-head"><span>Proxy</span></div>
              <div className="modal-section-body">
                <div style={{ display: 'flex', flexWrap: 'wrap', gap: 6, alignItems: 'center' }}>
                  {['H.264', '2 Mbps', 'MP4', '1920×1080', 'AAC 128 kbps'].map(tag => (
                    <span key={tag} className="mono" style={{ background: 'var(--bg-3)', borderRadius: 4, padding: '2px 8px', fontSize: 12 }}>{tag}</span>
                  ))}
                </div>
                <div style={{ fontSize: 11, color: 'var(--text-3)', marginTop: 6 }}>Fixed proxy profile. Not configurable.</div>
              </div>
            </div>
          )}

          <div className="modal-section">
            <div className="modal-section-head"><span>Destination</span></div>
            <div className="modal-section-body">
              <div className="field">
                <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>

          {submitErr && (
            <div style={{
              padding: '10px 14px', background: 'var(--danger-soft)',
              border: '1px solid var(--danger)', borderRadius: 6,
              fontSize: 12.5, color: 'var(--danger)', marginTop: 4,
            }}>{submitErr}</div>
          )}
        </div>

        <div className="modal-foot">
          <button className="btn ghost" onClick={onClose}>Cancel</button>
          <span style={{ flex: 1 }} />
          <button className="btn primary" onClick={handleCreate} disabled={submitting}>
            {submitting ? 'Creating…' : 'Create recorder'}
          </button>
        </div>
      </div>
    </div>
  );
}

window.NewRecorderModal = NewRecorderModal;