// Shared empty/trouble states + the States gallery screen
function EmptyState({ icon, title, line, action, onAction, compact }) {
  const DS = window.CommiTeaDesignSystem_20e63b;
  const { Button, Icon } = DS;
  return (
    <div style={{
      display: 'flex', flexDirection: 'column', alignItems: 'center', textAlign: 'center', gap: 10,
      padding: compact ? '28px 20px' : '52px 24px',
    }}>
      <span style={{
        width: 44, height: 44, borderRadius: '50%', background: 'var(--paper-2)', color: 'var(--ink-3)',
        display: 'inline-flex', alignItems: 'center', justifyContent: 'center',
      }}><Icon name={icon} size={19} /></span>
      <div style={{ font: '400 20px/1.25 var(--font-serif-display)', color: 'var(--ink-1)' }}>{title}</div>
      <p style={{ font: 'var(--text-agent)', color: 'var(--ink-2)', margin: 0, maxWidth: 380 }}>{line}</p>
      {action ? <Button style={{ marginTop: 6 }} onClick={onAction}>{action}</Button> : null}
    </div>
  );
}

function OfflineBanner({ retryIn }) {
  const DS = window.CommiTeaDesignSystem_20e63b;
  const { Icon } = DS;
  return (
    <div style={{
      display: 'flex', alignItems: 'center', gap: 10,
      background: 'var(--warn-tint)', border: '1px solid var(--warn)', borderRadius: 'var(--radius-2)',
      padding: '9px 14px',
    }}>
      <span style={{ color: 'var(--warn)', display: 'inline-flex' }}><Icon name="triangle-alert" size={15} /></span>
      <span style={{ font: 'var(--text-small)', color: 'var(--ink-1)', flex: 1 }}>
        Gitea isn't answering. I'll keep trying and say nothing more about it.
      </span>
      <span style={{ font: '400 11.5px var(--font-mono)', color: 'var(--ink-2)', whiteSpace: 'nowrap' }}>
        retry in {retryIn || '0:12'} · reads from cache
      </span>
    </div>
  );
}

function ModelAwayState() {
  const DS = window.CommiTeaDesignSystem_20e63b;
  const { Icon, Badge } = DS;
  return (
    <div style={{ display: 'flex', flexDirection: 'column', gap: 8, padding: '14px 16px' }}>
      <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
        <span style={{ color: 'var(--ink-3)', display: 'inline-flex' }}><Icon name="sparkles" size={15} /></span>
        <span style={{ font: 'var(--text-body-strong)', color: 'var(--ink-2)' }}>Reginald</span>
        <span style={{ font: '400 11px var(--font-mono)', color: 'var(--ink-3)' }}>model offline</span>
        <span style={{ marginLeft: 'auto' }}><Badge>queued: 1 directive</Badge></span>
      </div>
      <p style={{ font: 'var(--text-agent)', color: 'var(--ink-2)', margin: 0 }}>
        The model is away from its desk. Reads still work; writes will wait their turn.
      </p>
    </div>
  );
}

function StatesScreen({ onCapture }) {
  const DS = window.CommiTeaDesignSystem_20e63b;
  const { Button, Badge, Icon } = DS;

  const Specimen = ({ label, children }) => (
    <div style={{ display: 'flex', flexDirection: 'column', gap: 8 }}>
      <span style={{ font: '400 11px var(--font-mono)', color: 'var(--ink-3)' }}>{label}</span>
      <div style={{ border: '1px dashed var(--line-2)', borderRadius: 'var(--radius-3)', background: 'var(--surface-card)', overflow: 'hidden' }}>
        {children}
      </div>
    </div>
  );

  return (
    <div style={{ display: 'flex', flexDirection: 'column', gap: 16 }}>
      <header style={{ borderBottom: 'var(--rule-double)', paddingBottom: 14 }}>
        <h1 style={{ font: 'var(--text-display)', color: 'var(--ink-1)', margin: 0 }}>States</h1>
        <p style={{ font: 'var(--text-data)', color: 'var(--ink-3)', margin: '6px 0 0' }}>empty & trouble · specimens as wired in the app</p>
      </header>

      <p style={{ font: 'var(--text-overline)', letterSpacing: 'var(--letter-spacing-wide)', textTransform: 'uppercase', color: 'var(--ink-3)', margin: '4px 0 0' }}>Empty</p>
      <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 14 }}>
        <Specimen label="the pot · no issues">
          <EmptyState compact icon="inbox" title="The pot is empty"
            line="Tell me what you're planning and I'll draw up the tickets."
            action="Start a capture" onAction={onCapture} />
        </Specimen>
        <Specimen label="morning service · nothing scheduled">
          <EmptyState compact icon="coffee" title="Nothing to pour"
            line="Capture some work, or enjoy the silence — it never lasts." />
        </Specimen>
        <Specimen label="directives · no entries">
          <EmptyState compact icon="flag" title="No directives yet"
            line="When you overrule the scheduler, it goes on the record here — who, when, what, why." />
        </Specimen>
        <Specimen label="board search · no match">
          <EmptyState compact icon="search" title="Nothing by that name"
            line="The pot holds 24 issues; none of them answer to that." />
        </Specimen>
      </div>

      <p style={{ font: 'var(--text-overline)', letterSpacing: 'var(--letter-spacing-wide)', textTransform: 'uppercase', color: 'var(--ink-3)', margin: '8px 0 0' }}>Trouble</p>
      <div style={{ display: 'flex', flexDirection: 'column', gap: 14 }}>
        <Specimen label="gitea unreachable · banner above main content (toggle the rail's connection dot to see it live)">
          <div style={{ padding: 12 }}><OfflineBanner /></div>
        </Specimen>
        <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 14 }}>
          <Specimen label="reginald's panel · model offline">
            <ModelAwayState />
          </Specimen>
          <Specimen label="webhooks down · poll fallback">
            <div style={{ display: 'flex', alignItems: 'center', gap: 10, padding: '14px 16px' }}>
              <Badge tone="warn" dot>webhooks down</Badge>
              <span style={{ font: '400 11.5px var(--font-mono)', color: 'var(--ink-2)' }}>polling every 2 min · updates may lag</span>
            </div>
          </Specimen>
        </div>
        <Specimen label="first reconcile failed · full-screen">
          <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', padding: '8px 0 20px' }}>
            <EmptyState compact icon="refresh-cw" title="The reconcile failed"
              line="Gitea answered, then hung up mid-sentence. Your cache is intact; nothing human is lost." />
            <div style={{ display: 'flex', gap: 8, marginTop: -6 }}>
              <Button>Try again</Button>
              <Button variant="ghost">Work from cache</Button>
            </div>
          </div>
        </Specimen>
      </div>
    </div>
  );
}
Object.assign(window, { EmptyState, OfflineBanner, ModelAwayState, StatesScreen });
