#!/usr/bin/env node

import { readFileSync, writeFileSync } from 'node:fs';
import { resolve } from 'node:path';

const root = resolve(import.meta.dirname, '..');
const sourcePath = resolve(root, 'docs/migration/legacy-admin-inventory.generated.md');
const outputPath = resolve(root, 'src/app/admin/legacy-admin-coverage.generated.ts');
const checkOnly = process.argv.includes('--check');

const explicit = new Map([
  ['User/GroupManage', ['implemented', '已由 Group 资源页与专用帐套组生命周期替代']],
  ['User/Group_API', ['implemented', '已覆盖帐套组列表与带引用保护的删除']],
  ['User/GroupAdd', ['implemented', '已由动态组表单与专用 saveGroup 替代']],
  ['User/GroupAdd_Submit', ['implemented', '已覆盖原子编号、父组校验与保存']],
  ['Content/ContentManage_Status', ['implemented', '已由 contentBatch 状态操作替代']],
  ['Content/ContentManage_Del', ['implemented', '已由 contentBatch 回收站操作替代']],
  ['Content/ContentMove', ['implemented', '已由内容详情与批量节点移动控件替代']],
  ['Content/ContentMove_Submit', ['implemented', '已由 contentBatch 帐套节点校验与移动替代']],
  ['Content/IHtmlToString', ['implemented', '已由 cms.content-normalizer 替代']],
  ['User/UserManage', ['partial', '已提供帐套用户列表、搜索、分页和批量操作；旧多条件筛选与导出仍待补齐']],
  ['User/UserAdd', ['partial', '已提供安全普通用户开户；旧扩展资料字段尚未全部复刻']],
  ['User/UserAdd_Submit', ['partial', '已覆盖开户、旧用户 ID 与默认账户初始化']],
  ['User/UserInfo', ['partial', '已提供动态详情、资料编辑、状态、分组和密码重置']],
  ['User/UserInfo_Submit', ['partial', '已覆盖安全字段更新；旧 UserBase 全字段仍待专用映射']],
  ['User/User_API', ['partial', '已覆盖锁定、解锁、移动分组；标注、归属管理员和手机归属地尚未迁移']],
  ['User/UserExp', ['partial', '现有账本可查询，管理员余额变更表单与事务规则尚未补齐']],
  ['Content/ContentManage', ['partial', '已提供帐套内容列表、搜索、分页、审核和批量操作']],
  ['Content/EditContent', ['partial', '可编辑安全主表字段；模型附表专用表单尚未全部生成']],
  ['Content/Content_Update', ['partial', '可更新安全主表字段；模型附表更新仅覆盖已迁移学习模型']],
  ['Content/ContentRecycle', ['partial', '可回收和恢复内容；独立回收站筛选页尚未提供']],
  ['Content/ContentManage_API', ['partial', '已覆盖恢复；永久删除、清空、专题移除和排序交换尚未迁移']],
]);

const blockedDataModules = new Map([
  ['Order', '目标库缺少订单、订单商品、支付与物流主表'],
  ['Pay', '目标库缺少支付流水、订单支付明细及可验证的交易数据'],
  ['Sale', '目标库缺少订单销售明细与可复算的销售事实表'],
  ['Shop / Coupon', '目标库无优惠券、促销实例与用户领取关系'],
  ['Shop / Refund', '目标库无订单退款与退款流水'],
  ['Product', '目标 Product 仅为旧商品附表，缺少 ZL_Commodities 主表'],
]);

const blockedInfrastructureModules = new Map([
  ['Extend / DBTool', '依赖数据库备份恢复、建表或服务器文件系统，不适用于托管 Parse 运行时'],
  ['Files', '依赖旧站点文件系统与文件云配置，尚无新对象存储方案'],
  ['FontManager', '依赖服务器字体文件安装与删除权限'],
  ['Label / PowerShell', '依赖 Windows PowerShell 与服务器命令执行，云函数明确禁止'],
  ['Label / SiteDeploy', '依赖站点发布、远程命令与文件下载基础设施'],
  ['Site', '依赖 IIS 站点、虚拟目录、主机池与数据库服务器管理'],
  ['Template', '依赖旧模板/CSS 文件系统和 Zoomla 标签运行时'],
  ['Extend / MyCss', '依赖旧站点 CSS 文件读写与下载'],
  ['Mobile / WeiXin', '依赖新版微信、支付、模板消息和服务通知凭据'],
  ['User / Mail', '依赖邮件与短信服务商配置及发送凭据'],
]);

const markdown = readFileSync(sourcePath, 'utf8');
const entries = [];
const occurrences = new Map();
for (const line of markdown.split(/\r?\n/)) {
  const match = line.match(/^\| ([^|]+) \| (\d+) \| (.+) \|$/);
  if (!match || match[1].trim() === '模块 / 控制器') continue;
  const moduleName = match[1].trim();
  const actions = [...match[3].matchAll(/`([^`]+)`/g)].map((item) => item[1]);
  if (actions.length !== Number(match[2])) throw new Error(`${moduleName}: 动作数量不一致`);
  for (const action of actions) {
    const key = `${moduleName}/${action}`;
    const occurrence = (occurrences.get(key) || 0) + 1;
    occurrences.set(key, occurrence);
    let status = 'pending';
    let reason = '尚未逐项迁移或完成等价性核验';
    if (explicit.has(key)) [status, reason] = explicit.get(key);
    else if (blockedDataModules.has(moduleName)) { status = 'blocked-data'; reason = blockedDataModules.get(moduleName); }
    else if (blockedInfrastructureModules.has(moduleName)) { status = 'blocked-infrastructure'; reason = blockedInfrastructureModules.get(moduleName); }
    entries.push({ module: moduleName, action, occurrence, status, reason });
  }
}
if (entries.length !== 1042) throw new Error(`预期 1042 个后台动作，实际 ${entries.length}`);

const generated = `// Generated by scripts/generate-admin-coverage.mjs. Do not edit by hand.\n` +
  `export type LegacyAdminCoverageStatus = 'implemented' | 'partial' | 'blocked-data' | 'blocked-infrastructure' | 'pending';\n` +
  `export interface LegacyAdminCoverageEntry { module: string; action: string; occurrence: number; status: LegacyAdminCoverageStatus; reason: string; }\n` +
  `export const LEGACY_ADMIN_COVERAGE: readonly LegacyAdminCoverageEntry[] = ${JSON.stringify(entries, null, 2)};\n`;

if (checkOnly) {
  const current = readFileSync(outputPath, 'utf8');
  if (current !== generated) throw new Error('后台迁移覆盖台账已过期，请运行 npm run admin-coverage:generate');
  console.log(`Admin coverage is current: ${entries.length} actions.`);
} else {
  writeFileSync(outputPath, generated);
  console.log(`Generated ${outputPath}: ${entries.length} actions.`);
}