#!/usr/bin/env node

import { mkdirSync, readdirSync, readFileSync, writeFileSync } from 'node:fs';
import { dirname, join, relative } from 'node:path';

function argument(name) {
  const index = process.argv.indexOf(name);
  return index >= 0 ? process.argv[index + 1] : '';
}

const source = argument('--source');
const output = argument('--output');
if (!source || !output) throw new Error('用法：node scripts/generate-legacy-admin-inventory.mjs --source <ILSpy输出目录> --output <md>');

const files = [];
function walk(directory) {
  for (const entry of readdirSync(directory, { withFileTypes: true })) {
    const path = join(directory, entry.name);
    if (entry.isDirectory()) walk(path);
    else if (entry.name.endsWith('.cs') && path.includes('Areas.Admin.Controllers')) files.push(path);
  }
}
walk(source);

const returnTypes = 'Task<[^>]+>|IActionResult|ActionResult|JsonResult|ContentResult|ViewResult|string|void|object|DataTable|PartialViewResult';
const methodPattern = new RegExp(`public\\s+(?:async\\s+)?(?:${returnTypes})\\s+([A-Za-z0-9_]+)\\s*\\(`, 'g');
const rows = [];
for (const file of files) {
  const code = readFileSync(file, 'utf8');
  const controller = code.match(/public class ([A-Za-z0-9_]+)Controller/)?.[1];
  if (!controller) continue;
  const actions = [...code.matchAll(methodPattern)].map((match) => match[1]).filter((name) => !['OnActionExecuting', 'OnActionExecutionAsync'].includes(name));
  const sourcePath = relative(source, file);
  const moduleName = sourcePath.replace(/^ZoomLaCMS\.Areas\.Admin\.Controllers(?:\.|\/)?/, '').replace(/Controller\.cs$/, '').replaceAll('/', ' / ') || controller;
  rows.push({ controller, moduleName, actions, source: sourcePath });
}
rows.sort((left, right) => left.controller.localeCompare(right.controller, 'en'));

const totalActions = rows.reduce((sum, row) => sum + row.actions.length, 0);
const lines = [
  '# 旧 ASP.NET 管理后台控制器与动作清单',
  '',
  '> 本文件由 `scripts/generate-legacy-admin-inventory.mjs` 从 `ZoomLaCMS.dll` 的 ILSpy 反编译结果生成。发布包没有 `.sln`、`.csproj` 和原始 Razor 视图，因此这是后端动作基线，不等同于可恢复的页面像素基线。',
  '',
  `- 管理控制器：${rows.length}`,
  `- 可识别公开动作：${totalActions}`,
  '- 生成日期：2026-08-18',
  '',
  '| 模块 / 控制器 | 动作数 | 公开动作 |',
  '|---|---:|---|',
  ...rows.map((row) => `| ${row.moduleName} | ${row.actions.length} | ${row.actions.map((action) => `\`${action}\``).join('、')} |`),
  '',
];

mkdirSync(dirname(output), { recursive: true });
writeFileSync(output, lines.join('\n'));
console.log(`Generated ${output}: ${rows.length} controllers, ${totalActions} actions.`);