chain-studio/lib/pages/doctor.dart

import 'package:flutter/material.dart';

import '../data/hub.dart';
import '../data/system_actions.dart';
import '../l10n/app_localizations.dart';
import '../theme/theme.dart';
import '../theme/tokens.dart';
import '../widgets/widgets.dart';

class DoctorPage extends StatefulWidget {
  const DoctorPage({super.key});

  @override
  State<DoctorPage> createState() => _DoctorPageState();
}

class _DoctorPageState extends State<DoctorPage> {
  late Future<DoctorSnapshot> _future;

  @override
  void initState() {
    super.initState();
    _future = HubService.instance.doctor();
  }

  void _refresh() => setState(() {
        _future = HubService.instance.doctor();
      });

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Theme.of(context).scaffoldBackgroundColor,
      appBar: AppBar(
        title: Text(AppLocalizations.of(context)!.doctorTitle),
        actions: [
          IconButton(
            icon: const Icon(Icons.refresh, size: 18),
            tooltip: 'Re-check',
            onPressed: _refresh,
          ),
          const SizedBox(width: FaiSpace.sm),
        ],
      ),
      body: FutureBuilder<DoctorSnapshot>(
        future: _future,
        builder: (context, snapshot) {
          if (snapshot.connectionState == ConnectionState.waiting) {
            return const Center(child: CircularProgressIndicator());
          }
          if (snapshot.hasError) {
            return FaiEmptyState(
              icon: Icons.cloud_off_outlined,
              iconColor: Theme.of(context).colorScheme.error,
              title: 'Hub unreachable',
              hint: 'Start the hub with `fai serve`.',
              action: FilledButton.tonal(
                onPressed: _refresh,
                child: const Text('Retry'),
              ),
            );
          }
          final s = snapshot.data!;
          final showUpdate = s.update.updateAvailable ||
              (!s.update.manifestReachable &&
                  s.update.localVersion.isNotEmpty);
          return ListView(
            padding: const EdgeInsets.all(FaiSpace.xl),
            children: [
              if (showUpdate) _UpdateBanner(status: s.update),
              if (showUpdate) const SizedBox(height: FaiSpace.lg),
              _SummaryStrip(snapshot: s),
              const SizedBox(height: FaiSpace.xl),
              _Section(
                title: 'Event log',
                child: _EventLogPanel(
                  snapshot: s,
                  onRefresh: _refresh,
                ),
              ),
              const SizedBox(height: FaiSpace.lg),
              _Section(
                title: 'Modules & approvals',
                child: _ModulesPanel(snapshot: s),
              ),
              const SizedBox(height: FaiSpace.lg),
              _Section(
                title: 'Host services',
                child: _ServicesPanel(snapshot: s),
              ),
              const SizedBox(height: FaiSpace.lg),
              _Section(
                title: 'Daemon files',
                child: _DaemonPathsPanel(paths: s.paths),
              ),
              const SizedBox(height: FaiSpace.lg),
              _Section(
                title: 'Daemon control',
                child: _DaemonActionsCard(),
              ),
            ],
          );
        },
      ),
    );
  }
}

class _Section extends StatelessWidget {
  final String title;
  final Widget child;

  const _Section({required this.title, required this.child});

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Padding(
          padding: const EdgeInsets.only(left: FaiSpace.xs, bottom: FaiSpace.sm),
          child: Text(
            title.toUpperCase(),
            style: theme.textTheme.labelSmall?.copyWith(
              color: theme.colorScheme.onSurfaceVariant,
              letterSpacing: 0.6,
              fontSize: 10,
            ),
          ),
        ),
        child,
      ],
    );
  }
}

class _SummaryStrip extends StatelessWidget {
  final DoctorSnapshot snapshot;

  const _SummaryStrip({required this.snapshot});

  @override
  Widget build(BuildContext context) {
    return Row(
      children: [
        _StatTile(
          label: 'Modules',
          value: snapshot.moduleCount.toString(),
          subtitle: '${snapshot.capabilityCount} capabilities',
          icon: Icons.extension_outlined,
        ),
        const SizedBox(width: FaiSpace.md),
        _StatTile(
          label: 'Approvals',
          value: snapshot.pendingApprovals.toString(),
          subtitle: 'pending',
          icon: Icons.inbox_outlined,
          tone: snapshot.pendingApprovals > 0
              ? FaiPillTone.warning
              : FaiPillTone.neutral,
        ),
        const SizedBox(width: FaiSpace.md),
        _StatTile(
          label: 'Audit',
          value: snapshot.chainHealthy ? '✓' : '⚠',
          subtitle:
              '${snapshot.eventChainVerified}/${snapshot.eventChainTotal} chain',
          icon: Icons.shield_outlined,
          tone: snapshot.chainHealthy
              ? FaiPillTone.success
              : FaiPillTone.danger,
        ),
        const SizedBox(width: FaiSpace.md),
        _StatTile(
          label: 'Services',
          value: snapshot.services.length.toString(),
          subtitle: 'declared',
          icon: Icons.dns_outlined,
        ),
      ],
    );
  }
}

class _StatTile extends StatelessWidget {
  final String label;
  final String value;
  final String subtitle;
  final IconData icon;
  final FaiPillTone tone;

  const _StatTile({
    required this.label,
    required this.value,
    required this.subtitle,
    required this.icon,
    this.tone = FaiPillTone.neutral,
  });

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final accentColor = switch (tone) {
      FaiPillTone.success => FaiColors.success,
      FaiPillTone.warning => FaiColors.warning,
      FaiPillTone.danger => theme.colorScheme.error,
      _ => theme.colorScheme.primary,
    };
    return Expanded(
      child: FaiCard(
        accentLeft: accentColor,
        padding: const EdgeInsets.all(FaiSpace.lg),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                Icon(icon, size: 14, color: theme.colorScheme.onSurfaceVariant),
                const SizedBox(width: FaiSpace.xs),
                Flexible(
                  child: Text(
                    label.toUpperCase(),
                    overflow: TextOverflow.ellipsis,
                    style: theme.textTheme.labelSmall?.copyWith(
                      color: theme.colorScheme.onSurfaceVariant,
                      letterSpacing: 0.5,
                      fontSize: 10,
                    ),
                  ),
                ),
              ],
            ),
            const SizedBox(height: FaiSpace.sm),
            Text(
              value,
              style: theme.textTheme.displaySmall?.copyWith(
                color: accentColor,
                fontWeight: FontWeight.w700,
              ),
            ),
            const SizedBox(height: 2),
            Text(
              subtitle,
              style: theme.textTheme.bodySmall?.copyWith(
                color: theme.colorScheme.onSurfaceVariant,
              ),
            ),
          ],
        ),
      ),
    );
  }
}

class _EventLogPanel extends StatelessWidget {
  final DoctorSnapshot snapshot;
  /// Re-runs the doctor() call which re-verifies the chain.
  /// Wired to a "Verify now" button so operators can re-check
  /// after import / restore without restarting the daemon.
  final VoidCallback onRefresh;

  const _EventLogPanel({required this.snapshot, required this.onRefresh});

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final healthy = snapshot.chainHealthy;
    return FaiCard(
      child: Row(
        children: [
          Icon(
            healthy ? Icons.verified_outlined : Icons.gpp_bad_outlined,
            size: 24,
            color: healthy ? FaiColors.success : theme.colorScheme.error,
          ),
          const SizedBox(width: FaiSpace.lg),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(
                  healthy
                      ? 'Hash chain intact'
                      : 'Tampering detected',
                  style: theme.textTheme.titleMedium?.copyWith(
                    fontWeight: FontWeight.w600,
                  ),
                ),
                const SizedBox(height: 2),
                Text(
                  healthy
                      ? '${snapshot.eventChainTotal} events · prev_event_sha256 verified end-to-end'
                      : '${snapshot.eventChainVerified} of ${snapshot.eventChainTotal} verified before mismatch at ${snapshot.eventChainTamperedAt}',
                  style: theme.textTheme.bodySmall?.copyWith(
                    color: theme.colorScheme.onSurfaceVariant,
                  ),
                ),
              ],
            ),
          ),
          OutlinedButton.icon(
            onPressed: onRefresh,
            icon: const Icon(Icons.fact_check_outlined, size: 16),
            label: const Text('Verify now'),
          ),
          const SizedBox(width: FaiSpace.sm),
          FaiPill(
            label: healthy ? 'WORM-1' : 'TAMPER',
            tone: healthy ? FaiPillTone.success : FaiPillTone.danger,
          ),
        ],
      ),
    );
  }
}

/// Lists the daemon's filesystem paths with one "Open" button
/// per row. Windows operators who never touch a shell still
/// need a way to inspect the audit DB or edit the operator
/// config; this panel is that escape hatch.
class _DaemonPathsPanel extends StatelessWidget {
  final DaemonPathsSnapshot paths;

  const _DaemonPathsPanel({required this.paths});

  @override
  Widget build(BuildContext context) {
    final entries = <(String, String, IconData)>[
      ('Log', paths.logPath, Icons.description_outlined),
      ('Config', paths.configPath, Icons.settings_outlined),
      ('Audit DB', paths.dbPath, Icons.storage_outlined),
      ('Modules dir', paths.modulesDir, Icons.extension_outlined),
      ('Flows dir', paths.flowsDir, Icons.account_tree_outlined),
      ('PID file', paths.pidPath, Icons.fingerprint),
    ].where((e) => e.$2.isNotEmpty).toList();

    if (entries.isEmpty) {
      return FaiCard(
        child: Text(
          'Daemon did not report file paths. '
          'Update the running hub via `fai daemon restart`.',
          style: Theme.of(context).textTheme.bodySmall,
        ),
      );
    }

    return FaiCard(
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          for (final e in entries) _PathRow(label: e.$1, path: e.$2, icon: e.$3),
        ],
      ),
    );
  }
}

class _PathRow extends StatelessWidget {
  final String label;
  final String path;
  final IconData icon;

  const _PathRow({required this.label, required this.path, required this.icon});

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 4),
      child: Row(
        children: [
          Icon(icon, size: 16, color: theme.colorScheme.onSurfaceVariant),
          const SizedBox(width: FaiSpace.sm),
          SizedBox(
            width: 90,
            child: Text(
              label,
              style: theme.textTheme.labelSmall?.copyWith(
                color: theme.colorScheme.onSurfaceVariant,
              ),
            ),
          ),
          Expanded(
            child: SelectableText(
              path,
              style: FaiTheme.mono(
                size: 11,
                color: theme.colorScheme.onSurface,
              ),
            ),
          ),
          const SizedBox(width: FaiSpace.sm),
          OutlinedButton.icon(
            onPressed: () async {
              final r = await SystemActions.openInOs(path);
              if (!context.mounted) return;
              if (!r.ok) {
                ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: Text('Could not open: ${r.stderr}')),
                );
              }
            },
            icon: const Icon(Icons.open_in_new, size: 14),
            label: const Text('Open'),
            style: OutlinedButton.styleFrom(
              visualDensity: VisualDensity.compact,
            ),
          ),
        ],
      ),
    );
  }
}

/// Daemon control affordances: Restart, Apply update, Stop.
/// Each shells out to the `fai` binary (resolved via PATH or
/// `~/.fai/bin/fai`). Studio is the GUI shell; the binary owns
/// the supervisor logic so the daemon and CLI stay in lockstep.
class _DaemonActionsCard extends StatefulWidget {
  @override
  State<_DaemonActionsCard> createState() => _DaemonActionsCardState();
}

class _DaemonActionsCardState extends State<_DaemonActionsCard> {
  bool _busy = false;
  String? _output;
  ChannelStatusSnapshot? _channels;

  @override
  void initState() {
    super.initState();
    _refreshStatus();
  }

  Future<void> _refreshStatus() async {
    try {
      final snap = await HubService.instance.channelStatus();
      if (!mounted) return;
      setState(() => _channels = snap);
    } catch (_) {
      // Best-effort; the status pill simply renders "unknown".
    }
  }

  Future<void> _run(
    String label,
    Future<({bool ok, String stdout, String stderr})> Function() action,
  ) async {
    setState(() {
      _busy = true;
      _output = null;
    });
    final r = await action();
    if (!mounted) return;
    setState(() {
      _busy = false;
      _output = (r.ok
              ? 'OK · $label\n${r.stdout}'
              : 'Failed · $label\n${r.stderr.isEmpty ? r.stdout : r.stderr}')
          .trim();
    });
    // Refresh the status pill — restart / stop / start all
    // change the running flag.
    await _refreshStatus();
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    ChannelInfo? active;
    if (_channels != null) {
      for (final c in _channels!.channels) {
        if (c.name == _channels!.active) {
          active = c;
          break;
        }
      }
    }
    return FaiCard(
      // Row + Expanded forces the card to take the full width
      // its parent offers. Without this, the card hugs the
      // intrinsic width of the longest button row and ends up
      // visibly narrower than its siblings.
      child: SizedBox(
        width: double.infinity,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                Icon(
                  active?.running == true
                      ? Icons.check_circle_outline
                      : Icons.power_off_outlined,
                  size: 18,
                  color: active?.running == true
                      ? FaiColors.success
                      : theme.colorScheme.onSurfaceVariant,
                ),
                const SizedBox(width: FaiSpace.sm),
                Expanded(
                  child: Text(
                    active == null
                        ? 'Daemon status: …'
                        : active.running
                            ? 'Running on ${active.name}: ${active.endpoint}'
                            : '${active.name} daemon stopped',
                    style: theme.textTheme.bodyMedium?.copyWith(
                      fontWeight: FontWeight.w500,
                    ),
                    overflow: TextOverflow.ellipsis,
                  ),
                ),
                if (active != null) ...[
                  const SizedBox(width: FaiSpace.sm),
                  Tooltip(
                    message: 'PID file at the channel\'s run/<name>.pid',
                    child: FaiPill(
                      label: active.running ? 'running' : 'stopped',
                      tone: active.running
                          ? FaiPillTone.success
                          : FaiPillTone.neutral,
                    ),
                  ),
                ],
              ],
            ),
            const SizedBox(height: FaiSpace.sm),
            Text(
              'Studio shells out to the platform binary — mirrors '
              '`fai daemon …` exactly so the CLI and UI stay in lockstep.',
              style: theme.textTheme.bodySmall?.copyWith(
                color: theme.colorScheme.onSurfaceVariant,
              ),
            ),
            const SizedBox(height: FaiSpace.md),
            Wrap(
              spacing: FaiSpace.sm,
              runSpacing: FaiSpace.sm,
              children: [
                FilledButton.tonalIcon(
                  onPressed: _busy
                      ? null
                      : () => _run(
                            'daemon restart',
                            () => SystemActions.faiDaemon(['restart']),
                          ),
                  icon: const Icon(Icons.restart_alt, size: 16),
                  label: const Text('Restart'),
                ),
                if (active?.running != true)
                  FilledButton.icon(
                    onPressed: _busy
                        ? null
                        : () => _run(
                              'daemon start',
                              () => SystemActions.faiDaemon(['start']),
                            ),
                    icon: const Icon(Icons.play_arrow, size: 16),
                    label: const Text('Start'),
                  ),
                OutlinedButton.icon(
                  onPressed: _busy
                      ? null
                      : () => _run(
                            'daemon stop',
                            () => SystemActions.faiDaemon(['stop']),
                          ),
                  icon: const Icon(Icons.stop_circle_outlined, size: 16),
                  label: const Text('Stop'),
                ),
                OutlinedButton.icon(
                  onPressed: _busy
                      ? null
                      : () => _run(
                            'daemon status',
                            () => SystemActions.faiDaemon(['status']),
                          ),
                  icon: const Icon(Icons.health_and_safety_outlined, size: 16),
                  label: const Text('Status'),
                ),
              ],
            ),
            if (_busy) ...[
              const SizedBox(height: FaiSpace.md),
              Row(
                children: [
                  const SizedBox(
                    width: 14,
                    height: 14,
                    child: CircularProgressIndicator(strokeWidth: 2),
                  ),
                  const SizedBox(width: FaiSpace.sm),
                  Text(
                    'Working…',
                    style: theme.textTheme.bodySmall?.copyWith(
                      color: theme.colorScheme.onSurfaceVariant,
                    ),
                  ),
                ],
              ),
            ],
            if (_output != null) ...[
              const SizedBox(height: FaiSpace.md),
              Container(
                width: double.infinity,
                padding: const EdgeInsets.all(FaiSpace.sm),
                decoration: BoxDecoration(
                  color: theme.colorScheme.surfaceContainerHigh,
                  borderRadius: BorderRadius.circular(FaiRadius.sm),
                  border: Border.all(color: theme.colorScheme.outlineVariant),
                ),
                child: SelectableText(
                  _output!,
                  style: FaiTheme.mono(
                    size: 11,
                    color: theme.colorScheme.onSurface,
                  ),
                ),
              ),
            ],
          ],
        ),
      ),
    );
  }
}

class _ModulesPanel extends StatelessWidget {
  final DoctorSnapshot snapshot;

  const _ModulesPanel({required this.snapshot});

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    return FaiCard(
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Icon(
                Icons.extension_outlined,
                size: 18,
                color: theme.colorScheme.onSurfaceVariant,
              ),
              const SizedBox(width: FaiSpace.sm),
              Text(
                '${snapshot.moduleCount} modules · ${snapshot.capabilityCount} capabilities',
                style: theme.textTheme.bodyMedium,
              ),
              const Spacer(),
              FaiPill(
                label: snapshot.moduleCount > 0 ? 'loaded' : 'empty',
                tone: snapshot.moduleCount > 0
                    ? FaiPillTone.success
                    : FaiPillTone.neutral,
              ),
            ],
          ),
          const Divider(height: FaiSpace.xl),
          Row(
            children: [
              Icon(
                Icons.inbox_outlined,
                size: 18,
                color: theme.colorScheme.onSurfaceVariant,
              ),
              const SizedBox(width: FaiSpace.sm),
              Text(
                snapshot.pendingApprovals == 0
                    ? 'No pending approvals'
                    : '${snapshot.pendingApprovals} approval${snapshot.pendingApprovals == 1 ? '' : 's'} awaiting review',
                style: theme.textTheme.bodyMedium,
              ),
              const Spacer(),
              if (snapshot.pendingApprovals > 0)
                FaiPill(
                  label: 'attention',
                  tone: FaiPillTone.warning,
                ),
            ],
          ),
        ],
      ),
    );
  }
}

class _ServicesPanel extends StatelessWidget {
  final DoctorSnapshot snapshot;

  const _ServicesPanel({required this.snapshot});

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    if (snapshot.services.isEmpty) {
      return FaiCard(
        child: Row(
          children: [
            Icon(
              Icons.dns_outlined,
              size: 18,
              color: theme.colorScheme.onSurfaceVariant,
            ),
            const SizedBox(width: FaiSpace.sm),
            Text(
              'No host services declared',
              style: theme.textTheme.bodyMedium?.copyWith(
                color: theme.colorScheme.onSurfaceVariant,
              ),
            ),
            const Spacer(),
            Text(
              'add to ~/.fai/config.yaml under services:',
              style: FaiTheme.mono(
                size: 11,
                color: theme.colorScheme.onSurfaceVariant,
              ),
            ),
          ],
        ),
      );
    }
    return FaiCard(
      padding: EdgeInsets.zero,
      child: Column(
        children: [
          for (var i = 0; i < snapshot.services.length; i++) ...[
            if (i > 0)
              Divider(
                height: 1,
                color: theme.colorScheme.outlineVariant,
              ),
            Padding(
              padding: const EdgeInsets.all(FaiSpace.lg),
              child: Row(
                children: [
                  Icon(
                    Icons.dns_outlined,
                    size: 16,
                    color: theme.colorScheme.primary,
                  ),
                  const SizedBox(width: FaiSpace.sm),
                  Text(
                    snapshot.services[i].name,
                    style: theme.textTheme.titleSmall?.copyWith(
                      fontWeight: FontWeight.w600,
                    ),
                  ),
                  const SizedBox(width: FaiSpace.md),
                  Text(
                    snapshot.services[i].endpoint,
                    style: FaiTheme.mono(
                      size: 11,
                      color: theme.colorScheme.onSurfaceVariant,
                    ),
                  ),
                  const Spacer(),
                  for (final tag in snapshot.services[i].tags) ...[
                    FaiPill(label: tag, tone: FaiPillTone.neutral),
                    const SizedBox(width: FaiSpace.xs),
                  ],
                ],
              ),
            ),
          ],
        ],
      ),
    );
  }
}

class _UpdateBanner extends StatefulWidget {
  final UpdateStatus status;

  const _UpdateBanner({required this.status});

  @override
  State<_UpdateBanner> createState() => _UpdateBannerState();
}

class _UpdateBannerState extends State<_UpdateBanner> {
  bool _applying = false;
  String? _applyOutput;

  Future<void> _applyUpdate() async {
    setState(() {
      _applying = true;
      _applyOutput = null;
    });
    final r = await SystemActions.faiUpdateApply(widget.status.channel);
    if (!mounted) return;
    setState(() {
      _applying = false;
      _applyOutput = r.ok
          ? 'Update applied. Restart Studio to see the new daemon version.'
          : (r.stderr.isEmpty ? r.stdout : r.stderr).trim();
    });
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final status = widget.status;
    final available = status.updateAvailable;
    final iconData = available
        ? Icons.system_update_alt_outlined
        : Icons.cloud_off_outlined;
    final iconColor = available
        ? theme.colorScheme.primary
        : theme.colorScheme.onSurfaceVariant;
    final title = available
        ? 'Update available — ${status.latestVersion}'
        : 'Release host unreachable';
    final body = available
        ? 'Channel ${status.channel} now offers ${status.latestVersion}. '
            'Apply via the button — Studio shells out to '
            '`fai update apply --channel ${status.channel}`.'
        : (status.reason ?? 'Could not contact the release feed for ${status.channel}.');
    return FaiCard(
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Icon(iconData, size: 20, color: iconColor),
              const SizedBox(width: FaiSpace.md),
              Expanded(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      title,
                      style: theme.textTheme.titleSmall?.copyWith(
                        fontWeight: FontWeight.w600,
                      ),
                    ),
                    const SizedBox(height: 2),
                    Text(
                      body,
                      style: FaiTheme.mono(
                        size: 11,
                        color: theme.colorScheme.onSurfaceVariant,
                      ),
                    ),
                    if (available && status.releaseNotesUrl != null) ...[
                      const SizedBox(height: 4),
                      Text(
                        'notes: ${status.releaseNotesUrl}',
                        style: FaiTheme.mono(
                          size: 11,
                          color: theme.colorScheme.primary,
                        ),
                      ),
                    ],
                  ],
                ),
              ),
              if (available)
                FilledButton.icon(
                  onPressed: _applying ? null : _applyUpdate,
                  icon: _applying
                      ? const SizedBox(
                          width: 14,
                          height: 14,
                          child: CircularProgressIndicator(strokeWidth: 2),
                        )
                      : const Icon(Icons.system_update_alt, size: 16),
                  label: Text(_applying ? 'Applying…' : 'Apply update'),
                ),
              const SizedBox(width: FaiSpace.sm),
              FaiPill(
                label: available ? 'new' : 'offline',
                tone: available ? FaiPillTone.success : FaiPillTone.neutral,
              ),
            ],
          ),
          if (_applyOutput != null) ...[
            const SizedBox(height: FaiSpace.md),
            Container(
              width: double.infinity,
              padding: const EdgeInsets.all(FaiSpace.sm),
              decoration: BoxDecoration(
                color: theme.colorScheme.surfaceContainerHigh,
                borderRadius: BorderRadius.circular(FaiRadius.sm),
                border: Border.all(color: theme.colorScheme.outlineVariant),
              ),
              child: SelectableText(
                _applyOutput!,
                style: FaiTheme.mono(
                  size: 11,
                  color: theme.colorScheme.onSurface,
                ),
              ),
            ),
          ],
        ],
      ),
    );
  }
}