#!/usr/bin/env node
/**
 * patch-x12-confirm-hook-alignment.js
 * 验证 agent-isolation-gate.js 文件头注释与 settings.json hookEventName 一致
 * 仅验证, 不修改 (除非发现不一致则更新注释)
 *
 * 幂等: 验证型补丁
 */
'use strict';
const fs = require('fs');
const path = require('path');

const HOOKS_DIR = path.join(__dirname, '..', '..', 'hooks');
const SETTINGS_PATH = path.join(__dirname, '..', '..', 'settings.json');
const GATE_PATH = path.join(HOOKS_DIR, 'agent-isolation-gate.js');

if (!fs.existsSync(GATE_PATH) || !fs.existsSync(SETTINGS_PATH)) {
  console.log('SKIP: files not found');
  process.exit(0);
}

const gateSrc = fs.readFileSync(GATE_PATH, 'utf8');
const settings = JSON.parse(fs.readFileSync(SETTINGS_PATH, 'utf8'));

// 从 settings.json 找 agent-isolation-gate 注册位置
const hooks = settings.hooks || {};
const registeredEvents = [];

for (const [eventName, entries] of Object.entries(hooks)) {
  for (const entry of entries) {
    const entryHooks = entry.hooks || [];
    for (const h of entryHooks) {
      if (h.command && h.command.includes('agent-isolation-gate')) {
        registeredEvents.push({ event: eventName, matcher: entry.matcher || '*' });
      }
    }
  }
}

if (registeredEvents.length === 0) {
  console.error('WARN: agent-isolation-gate not found in settings.json hooks');
  process.exit(0);
}

console.log('Settings registration:');
for (const r of registeredEvents) {
  console.log('  ' + r.event + ' (matcher: ' + r.matcher + ')');
}

// 检查文件头注释
const headerMatch = gateSrc.match(/\* (PreToolUse|PostToolUse|UserPromptSubmit)\b.*Hook.*\(matcher:\s*([^)]+)\)/);
if (headerMatch) {
  const docEvent = headerMatch[1];
  const docMatcher = headerMatch[2].trim();
  const settingsEvent = registeredEvents[0].event;
  const settingsMatcher = registeredEvents[0].matcher;

  if (docEvent === settingsEvent && docMatcher === settingsMatcher) {
    console.log('OK: X12 header comment matches settings.json (' + docEvent + ' / ' + docMatcher + ')');
  } else {
    console.error('MISMATCH: header says ' + docEvent + '/' + docMatcher + ' but settings says ' + settingsEvent + '/' + settingsMatcher);
    process.exit(1);
  }
} else {
  console.log('WARN: header comment format not recognized, manual check needed');
}