red-alert

  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    if (e.props.hasSurvey) return next(e)
    const [current, shown, list, log, now] = await Promise.all([
      read($, link),
      read($, active),
      read($, levels),
      read($, history),
      $.clock.now(),
    ])
    const t = $.ui.resolve(e)
    // the engine draws its own collapse mark, ` [-]`, at the band's right edge
    const width = Math.max(20, e.props.bodyColumns - 4)
    if (shown) {
      return alertBanner($, t, width, Math.max(1, e.props.maxRows - 1), shown, now)
    }
    if (!settings.isIdleBandShown) return next(e)
    return idleStrip($, t, width, current, list, log, now)
  })

function alertBanner($: EngineInterface, t: Table, width: number, maxRows: number, shown: ActiveAlert, now: number) {
  const { Box, Text, Button } = t
  const ms = now - shown.startedAt
  const isAnimating = frameTimer !== undefined || now < shown.animateUntil
  const colors = bannerColors(shown.style, shown.color, ms, !isAnimating)
  const Raster = 'Raster' in t ? t.Raster : undefined

  const wanted = shown.style === 'klaxon' ? 2 : 1
  const spare = Math.max(0, maxRows - 1)
  const top = isAnimating ? Math.min(wanted, shown.style === 'sweep' ? spare : Math.floor(spare / 2)) : 0
  const bottom = isAnimating && shown.style !== 'sweep' ? Math.min(wanted, spare - top) : 0

  const bars = (rows: number, edge: 'top' | 'bottom') => {
    if (rows <= 0) return null
    if (Raster) {
      return (
        <Raster
          key={`bars:${edge}`}
          columns={width}
          rows={rows}
          cells={barCells(shown.style, shown.color, width, rows, ms, edge)}
        />
      )
    }
    const runs = barRuns(shown.style, shown.color, Math.max(8, Math.floor(width / 4)), ms)
    const run = Math.floor(width / runs.length)
    return (
      <Box flexDirection="row">
        {runs.map((color, i) => (
          <Text color={color}>{'█'.repeat(i === runs.length - 1 ? width - run * (runs.length - 1) : run)}</Text>
        ))}
      </Box>
    )
  }

  const title =
    shown.style === 'klaxon' && isAnimating
      ? ` ${chevrons(ms, 'left')}  ${shown.title}  ${chevrons(ms, 'right')} `
      : shown.style === 'sweep'
        ? ` ◉ INCOMING · ${shown.title} `
        : ` ◆ ${shown.title} ◆ `
  const from =
    shown.origin === 'remote' ? `  · ${shown.source || 'elsewhere'}` : shown.origin === 'manual' ? '  · manual' : ''
  const secondsLeft = shown.duration > 0 ? Math.ceil((shown.startedAt + shown.duration * 1000 - now) / 1000) : 0

  return (
    <Box flexDirection="column">
      {bars(top, 'top')}
      <Box flexDirection="row" width={width} backgroundColor={colors.background}>
        <Text backgroundColor={colors.background} color={colors.foreground} bold>{title}</Text>
        <Box flexGrow={1} flexShrink={1}>
          <Text backgroundColor={colors.background} color={colors.foreground} wrap="truncate">
            {` ${shown.message}${from} `}
          </Text>
        </Box>
        {secondsLeft > 0 && (
          <Text backgroundColor={colors.background} color={colors.foreground}>{` ${secondsLeft}s `}</Text>
        )}
        <Button
          key="band:silence"
          label={isAnimating ? 'Silence' : 'Dismiss'}
          hotkey={SILENCE_KEY}
          plain
          onPress={() => void silenceQuietly($)}
        />
        <Text backgroundColor={colors.background}> </Text>
      </Box>
      {bars(bottom, 'bottom')}
    </Box>
  )
}

function idleStrip(
  $: EngineInterface,
  t: Table,
  width: number,
  current: DaemonLink | null,
  list: readonly AlertLevel[],
  log: readonly AlertRecord[],
  now: number,
) {
  const { Box, Text, Button } = t
  const status = statusPill(current, now)

  // the status and the levels first; then the brand, the rule and the last alert where room is left
  const levelsWidth = list.reduce((n, level) => n + level.name.length + 2, 0) + 2 * Math.max(0, list.length - 1)
  const fixed = 1 + 1 + status.label.length + 4 + (list.length > 0 ? 2 + levelsWidth : 0)
  const brand = width - fixed - 18 >= 4 ? '◉ ALERT SYSTEM' : '◉'
  let used = brand.length + 4 + fixed
  const last = log[0]
  const lastText = last ? `LAST ${last.level.toUpperCase()} ${ago(now / 1000 - last.time)} AGO` : ''
  const isLastShown = lastText !== '' && width - used - 4 >= lastText.length + 2
  if (isLastShown) used += lastText.length + 2

  return (
    <Box flexDirection="row">
      {pill(t, brand, LCARS.orange)}
      <Text> </Text>
      {rule(t, width - used, LCARS.lavender)}
      <Text> </Text>
      {pill(t, status.label, status.color)}
      {list.length > 0 && <Text>  </Text>}
      {list.map((level, i) => [
        i > 0 ? <Text>  </Text> : null,
        <Text color={level.color} bold>● </Text>,
        <Button
          key={`band:level:${level.name}`}
          label={level.name.toUpperCase()}
          plain
          {...(i === 0 ? { autoFocus: true } : {})}
          onPress={() => void soundFromBand($, level.name)}
        />,
      ])}
      {isLastShown && <Text color={LCARS.tan}>{`  ${lastText}`}</Text>}
    </Box>
  )
}

function pill(t: Table, label: string, color: string) {
  const { Text } = t
  return [
    <Text color={color}>▐</Text>,
    <Text backgroundColor={color} color={LCARS.ink} bold>{` ${label} `}</Text>,
    <Text color={color}>▌</Text>,
  ]
}

function rule(t: Table, width: number, color: string) {
  const { Text } = t
  return <Text color={color}>{'━'.repeat(Math.max(1, width))}</Text>
}

  on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
    const [current, shown, list, log, message, now] = await Promise.all([
      read($, link),
      read($, active),
      read($, levels),
      read($, history),
      read($, draft),
      $.clock.now(),
    ])
    const t = $.ui.resolve(e)
    const { Box, Text, Button } = t
    const Input = 'Input' in t ? t.Input : undefined
    const width = Math.max(30, e.props.bodyColumns)
    const rows = e.viewport?.rows ?? 30
    const ordered = [...list].sort((a, b) => a.priority - b.priority)

    const condition = shown
      ? { label: `${shown.level.toUpperCase()} ALERT`, color: shown.color }
      : current?.online
        ? { label: 'GREEN · STANDING BY', color: LCARS.green }
        : { label: 'NO CONTACT', color: LCARS.red }
    const system = current?.online
      ? `● ONLINE  ${current.url} · v${current.version} · ${current.hostname} · up ${ago(current.uptimeS ?? 0).toLowerCase()} · ${current.player}`
      : `○ OFFLINE  ${current?.url ?? settings.url}${current?.error ? ` · ${current.error}` : ''}`
    const logRoom = Math.max(1, rows - ordered.length - 15)

    return (
      <Box flexDirection="column">
        {shown ? alertBanner($, t, width, 5, shown, now) : consoleHeader(t, width)}
        <Box flexDirection="row" marginTop={1}>
          <Text color={LCARS.sand} bold>{'SYSTEM     '}</Text>
          <Text color={current?.online ? LCARS.green : LCARS.red} wrap="truncate">{system}</Text>
        </Box>
        <Box flexDirection="row">
          <Text color={LCARS.sand} bold>{'CONDITION  '}</Text>
          <Text color={condition.color} bold>{condition.label}</Text>
          {current?.mute && <Text color={LCARS.peach}>{`  · ${muteLabel(current.mute, now)}`}</Text>}
        </Box>

        {section(t, width, 'MANUAL ALERT', LCARS.violet)}
        {Input && (
          <Input
            key="manual:message"
            label="Message "
            placeholder="optional; Enter, then a level's number"
            value={message}
            submitLabel="pick a level"
            onInput={value => void update($, draft, () => value)}
            onSubmit={value => void update($, draft, () => value).then(() => focusFirstSound($))}
          />
        )}
        {ordered.length === 0 && <Text dimColor>No levels yet: the daemon has not answered.</Text>}
        {ordered.map((level, i) => (
          <Box flexDirection="row">
            <Button
              key={`sound:${level.name}`}
              label="Sound"
              {...(i < 9 ? { hotkey: String(i + 1) } : {})}
              plain
              dimColor
              onPress={() => void soundDraft($, level.name)}
            />
            <Text> </Text>
            {pill(t, level.name.toUpperCase().padEnd(8), level.color)}
            <Text color={LCARS.tan}>
              {` p${String(level.priority).padEnd(4)}${level.style.padEnd(7)}${lengthText(level.duration).padEnd(6)}`}
            </Text>
            <Box flexShrink={1}>
              <Text dimColor wrap="truncate">
                {level.soundReady ? level.description : `(sound not cached yet) ${level.description}`}
              </Text>
            </Box>
          </Box>
        ))}

        {section(t, width, 'LOG', LCARS.peach)}
        {log.length === 0 && <Text dimColor>No alerts yet.</Text>}
        {log.slice(0, logRoom).map(alert => (
          <Box flexDirection="row">
            <Text dimColor>{`${clockText(alert.time)}  `}</Text>
            <Text color={alert.color} bold>{alert.level.toUpperCase().padEnd(8)}</Text>
            <Text color={LCARS.tan}>{alert.status.padEnd(11)}</Text>
            <Box flexShrink={1}>
              <Text wrap="truncate">{`${alert.message || '-'}${alert.source ? `  · ${alert.source}` : ''}`}</Text>
            </Box>
          </Box>
        ))}

        <Box flexDirection="row" marginTop={1} gap={1}>
          <Button key="silence" label="Silence" hotkey={SILENCE_KEY} onPress={() => void silenceQuietly($, true)} />
          <Button key="mute" label="Mute 30m" hotkey="m" onPress={() => void mute($, 30).catch(() => null)} />
          <Button key="unmute" label="Unmute" hotkey="u" onPress={() => void unmute($).catch(() => null)} />
          {current !== null && current.checkedAt > 0 && !current.online && (
            <Button key="start" label="Start daemon" hotkey="d" variant="primary" onPress={() => void startAndToast($)} />
          )}
          <Button key="refresh" label="Refresh" hotkey="r" onPress={() => void refresh($)} />
          <Button key="close" label="Close" hotkey="x" role="dismiss" onPress={() => void $.ui.close({ id: PANE })} />
        </Box>
      </Box>
    )
  })