import { spawnSync } from "node:child_process";
import { createHash } from "node:crypto";
import fs from "node:fs";
import path from "node:path";
import process from "node:process";
import AdmZip from "adm-zip";
import packager from "@electron/packager";

const root = process.cwd();
const packageJson = JSON.parse(fs.readFileSync(path.join(root, "package.json"), "utf8"));
const version = packageJson.version;
const releaseRoot = path.resolve(root, "release");
const productFolderName = `RPA-Studio-${version}-win-x64`;
const productFolder = path.join(releaseRoot, productFolderName);
const zipPath = path.join(releaseRoot, `${productFolderName}.zip`);

function assertInsideRelease(target) {
  const relative = path.relative(releaseRoot, path.resolve(target));
  if (!relative || relative.startsWith("..") || path.isAbsolute(relative)) {
    throw new Error(`拒绝操作 release 目录外路径：${target}`);
  }
}

function run(command, args) {
  const result = spawnSync(command, args, { cwd: root, stdio: "inherit", shell: process.platform === "win32" });
  if (result.status !== 0) throw new Error(`${command} ${args.join(" ")} 失败，退出码 ${result.status}`);
}

fs.mkdirSync(releaseRoot, { recursive: true });
for (const target of [productFolder, zipPath]) {
  assertInsideRelease(target);
  fs.rmSync(target, { recursive: true, force: true });
}

console.log("[package] typecheck");
run("npm", ["run", "typecheck"]);
console.log("[package] tests");
run("npm", ["test"]);
console.log("[package] build");
run("npm", ["run", "build"]);

console.log("[package] electron packager");
const outputs = await packager({
  dir: root,
  name: "RPA Studio",
  platform: "win32",
  arch: "x64",
  out: releaseRoot,
  overwrite: true,
  prune: true,
  asar: true,
  electronVersion: packageJson.devDependencies.electron,
  appVersion: version,
  win32metadata: {
    CompanyName: "RPA Studio",
    FileDescription: "RPA Studio Desktop Automation",
    ProductName: "RPA Studio",
    InternalName: "RPA Studio"
  },
  ignore: [
    /^[/\\]\.git($|[/\\])/,
    /^[/\\]release($|[/\\])/,
    /^[/\\]_analysis($|[/\\])/,
    /^[/\\]docs($|[/\\])/,
    /^[/\\]scripts($|[/\\])/,
    /^[/\\]src($|[/\\])/,
    /\.test\.[cm]?[jt]sx?$/
  ]
});

const packaged = outputs[0];
if (!packaged || !fs.existsSync(path.join(packaged, "RPA Studio.exe"))) {
  throw new Error(`打包产物无效：${packaged || "未返回目录"}`);
}
if (path.resolve(packaged) !== path.resolve(productFolder)) {
  assertInsideRelease(packaged);
  fs.renameSync(packaged, productFolder);
}

const git = spawnSync("git", ["rev-parse", "--short", "HEAD"], { cwd: root, encoding: "utf8" });
const revision = git.status === 0 ? git.stdout.trim() : "unknown";
const builtAt = new Date().toISOString();
fs.writeFileSync(path.join(productFolder, "version.json"), JSON.stringify({
  product: "RPA Studio",
  version,
  revision,
  builtAt,
  platform: "win32-x64",
  electron: packageJson.devDependencies.electron,
  distribution: "portable"
}, null, 2));
fs.writeFileSync(path.join(productFolder, "使用说明.txt"), [
  "RPA Studio Windows x64 免安装版",
  "",
  "1. 将整个文件夹解压到普通本地目录。",
  "2. 双击 RPA Studio.exe 启动。",
  "3. 任务、流程和运行记录默认保存在当前 Windows 用户的 AppData\\Roaming\\rpa-studio。",
  "4. Word 自动化需要本机安装 Microsoft Word；其他文件级能力无需安装 Office。",
  "5. 首次启动如被 Windows SmartScreen 提示，请核对同目录 SHA256SUMS.txt；当前构建未进行商业代码签名。",
  "",
  `版本：${version}`,
  `源码提交：${revision}`,
  `构建时间：${builtAt}`
].join("\r\n"), "utf8");

console.log("[package] zip");
const zip = new AdmZip();
zip.addLocalFolder(productFolder, productFolderName);
zip.writeZip(zipPath);
const sha256 = createHash("sha256").update(fs.readFileSync(zipPath)).digest("hex");
fs.writeFileSync(path.join(releaseRoot, "SHA256SUMS.txt"), `${sha256}  ${path.basename(zipPath)}\r\n`, "utf8");

console.log(JSON.stringify({ productFolder, zipPath, sha256 }, null, 2));