// arch-sync-check.js
// PostToolUse hook: detects git commit/push and reminds to sync architecture docs
// Reads tool input from stdin, outputs reminder if git operation detected

const CHUNKS = [];
process.stdin.on('data', (c) => CHUNKS.push(c));
process.stdin.on('end', () => {
  try {
    const input = JSON.parse(Buffer.concat(CHUNKS).toString());
    const toolName = input.tool_name || '';
    const toolInput = input.tool_input || {};

    // Only check Bash tool calls
    if (toolName !== 'Bash') return;

    const cmd = (toolInput.command || '').trim();

    // Detect git commit or git push
    const isGitCommit = cmd.startsWith('git commit') || cmd.includes('&& git commit');
    const isGitPush = cmd.startsWith('git push') || cmd.includes('&& git push');

    if (isGitCommit || isGitPush) {
      console.log('[arch-sync] Architecture docs may need updating. Run /sync-arch or update CLAUDE.md §13 + ARCHITECTURE_BRIEF.md as part of §8.3 completion flow.');
    }
  } catch {
    // Silently ignore parse errors
  }
});