claude-code/src/components/SandboxViolationExpandedView.tsx

import { type ReactNode, useEffect, useState } from 'react';
import { Box, Text } from '@anthropic/ink';
import type { SandboxViolationEvent } from '../utils/sandbox/sandbox-adapter.js';
import { SandboxManager } from '../utils/sandbox/sandbox-adapter.js';

/**
 * Format a timestamp as "h:mm:ssa" (e.g., "1:30:45pm").
 * Replaces date-fns format() to avoid pulling in a 39MB dependency for one call.
 */
function formatTime(date: Date): string {
  const h = date.getHours() % 12 || 12;
  const m = String(date.getMinutes()).padStart(2, '0');
  const s = String(date.getSeconds()).padStart(2, '0');
  const ampm = date.getHours() < 12 ? 'am' : 'pm';
  return `${h}:${m}:${s}${ampm}`;
}

import { getPlatform } from 'src/utils/platform.js';

export function SandboxViolationExpandedView(): ReactNode {
  const [violations, setViolations] = useState<SandboxViolationEvent[]>([]);
  const [totalCount, setTotalCount] = useState(0);

  useEffect(() => {
    // This is harmless if sandboxing is not enabled
    const store = SandboxManager.getSandboxViolationStore();
    const unsubscribe = store.subscribe((allViolations: SandboxViolationEvent[]) => {
      setViolations(allViolations.slice(-10));
      setTotalCount(store.getTotalCount());
    });
    return unsubscribe;
  }, []);

  if (!SandboxManager.isSandboxingEnabled() || getPlatform() === 'linux') {
    return null;
  }

  if (totalCount === 0) {
    return null;
  }

  return (
    <Box flexDirection="column" marginTop={1}>
      <Box marginLeft={0}>
        <Text color="permission">
          ⧈ Sandbox blocked {totalCount} total {totalCount === 1 ? 'operation' : 'operations'}
        </Text>
      </Box>
      {violations.map((v, i) => (
        <Box key={`${v.timestamp.getTime()}-${i}`} paddingLeft={2}>
          <Text dimColor>
            {formatTime(v.timestamp)}
            {v.command ? ` ${v.command}:` : ''} {v.line}
          </Text>
        </Box>
      ))}
      <Box paddingLeft={2}>
        <Text dimColor>
          … showing last {Math.min(10, violations.length)} of {totalCount}
        </Text>
      </Box>
    </Box>
  );
}