/**
 * 扫描前端 hasPermission / 路由 permission，输出三级按钮收集结果
 * 用法: node scripts/collect-page-buttons.mjs
 */
import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const root = path.resolve(__dirname, '..');
const srcDir = path.join(root, 'src');

const ACTION_LABELS = {
  Query: '查询',
  Create: '新增',
  Update: '修改',
  Delete: '删除',
  Move: '移动',
  AssignRoles: '分配角色',
  AssignPermissions: '分配权限',
  ResetPassword: '重置密码',
  Template: '模板管理',
  Audit: '审计',
  Use: '使用',
  Save: '保存',
  Export: '导出',
  Import: '导入',
};

function walk(dir, ext, out = []) {
  for (const name of fs.readdirSync(dir)) {
    const full = path.join(dir, name);
    const stat = fs.statSync(full);
    if (stat.isDirectory()) {
      if (name === 'node_modules') continue;
      walk(full, ext, out);
    } else if (full.endsWith(ext)) {
      out.push(full);
    }
  }
  return out;
}

function inferParent(code) {
  const parts = code.split('.');
  if (parts.length < 3) return null;
  // 资源级：Rbac.Menus.Create → Rbac.Menus
  return `${parts[0]}.${parts[1]}`;
}

function inferName(code) {
  const action = code.split('.').pop();
  return ACTION_LABELS[action] || action;
}

const vueFiles = walk(path.join(srcDir, 'views'), '.vue');
const routeFiles = walk(path.join(srcDir, 'router'), '.ts');

const permissionCodes = new Set();

for (const file of [...vueFiles, ...routeFiles]) {
  const text = fs.readFileSync(file, 'utf8');
  const hasPermissionRe = /hasPermission\(\s*['"]([^'"]+)['"]\s*\)/g;
  const routePermRe = /permission:\s*['"]([^'"]+)['"]/g;
  let m;
  while ((m = hasPermissionRe.exec(text))) permissionCodes.add(m[1]);
  while ((m = routePermRe.exec(text))) permissionCodes.add(m[1]);
}

const grouped = new Map();
for (const code of [...permissionCodes].sort()) {
  const parent = inferParent(code);
  if (!parent || parent === code) continue;
  if (!grouped.has(parent)) grouped.set(parent, []);
  grouped.get(parent).push({ permissionCode: code, name: inferName(code) });
}

console.log('# 前端页面按钮收集结果\n');
console.log(`扫描文件: ${vueFiles.length} 个 vue, ${routeFiles.length} 个路由`);
console.log(`权限码总数: ${permissionCodes.size}`);
console.log(`可分组三级按钮父级: ${grouped.size}\n`);

for (const [parent, buttons] of [...grouped.entries()].sort((a, b) => a[0].localeCompare(b[0]))) {
  console.log(`## ${parent}`);
  buttons.forEach((btn, idx) => {
    console.log(`  ${idx + 1}. ${btn.permissionCode} → ${btn.name}`);
  });
  console.log('');
}