#!/usr/bin/env node
// publish-hot.js —— 发布热更新包到自建 gitea。
//
// 用法：
//   GIT_TOKEN=xxx node scripts/publish-hot.js --version 1.5.1 [--min 1.5.0] \
//       [--notes "更新说明"] [--mandatory] [--requires-full]
//   token 也可放在 ~/.tokendun-git-token 文件里（优先用环境变量 GIT_TOKEN）。
//
// 流程：打包 electron/+renderer/ 成 zip → sha256(+可选签名) → 写 hotupdate.json
//       → gitea 的 tag=hot release：删旧 bundle/manifest、传新的。
"use strict";
const fs = require("fs");
const os = require("os");
const path = require("path");
const crypto = require("crypto");
const { execFileSync } = require("child_process");

const ROOT = path.join(__dirname, "..");
const pkg = JSON.parse(fs.readFileSync(path.join(ROOT, "package.json"), "utf8"));

// —— 参数 ——
const argv = process.argv.slice(2);
function arg(name, def) {
  const i = argv.indexOf(name);
  return i >= 0 && argv[i + 1] && !argv[i + 1].startsWith("--") ? argv[i + 1] : def;
}
const has = (name) => argv.includes(name);
const version = arg("--version", pkg.hotContentVersion || pkg.version);
const minAppVersion = arg("--min", pkg.version);
const notes = arg("--notes", "");
const mandatory = has("--mandatory");
const requiresFull = has("--requires-full");

// —— token ——
let token = process.env.GIT_TOKEN || "";
if (!token) {
  try { token = fs.readFileSync(path.join(os.homedir(), ".tokendun-git-token"), "utf8").trim(); } catch {}
}
if (!token) { console.error("缺少 gitea token：设置 GIT_TOKEN 或写入 ~/.tokendun-git-token"); process.exit(1); }

const OWNER = "backup-bot", REPO = "backup", TAG = "hot";
const API = `https://up.tokendun.cc/api/v1/repos/${OWNER}/${REPO}`;
const DL = `https://up.tokendun.cc/${OWNER}/${REPO}/releases/download/${TAG}`;

const OUT = path.join(ROOT, "dist-hot");
fs.mkdirSync(OUT, { recursive: true });
const bundleName = `bundle-${version}.zip`;
const bundlePath = path.join(OUT, bundleName);

// —— 1) 打包（zip，deflate，可被 lib/zip.js 解压）——
fs.rmSync(bundlePath, { force: true });
console.log(`打包 electron/ + renderer/ → ${bundleName} …`);
execFileSync("zip", ["-r", "-X", "-q", bundlePath, "electron", "renderer",
  "-x", "*.map", "-x", "*/node_modules/*"], { cwd: ROOT, stdio: "inherit" });

// —— 2) sha256（+ 可选 ed25519 签名）——
const buf = fs.readFileSync(bundlePath);
const sha256 = crypto.createHash("sha256").update(buf).digest("hex");
let signature = "";
try {
  const keyPath = path.join(os.homedir(), ".codex-hot-key.pem"); // 私钥（不入库）
  if (fs.existsSync(keyPath)) {
    const key = fs.readFileSync(keyPath);
    signature = crypto.sign(null, Buffer.from(`${sha256}:${version}`), key).toString("base64");
    console.log("已用本地私钥签名");
  }
} catch (e) { console.warn("签名跳过：" + e.message); }

// —— 3) manifest ——
const manifest = {
  contentVersion: version,
  minAppVersion,
  requiresFull,
  bundleUrl: `${DL}/${bundleName}`,
  size: buf.length,
  sha256,
  signature,
  notes,
  mandatory,
};
const manifestPath = path.join(OUT, "hotupdate.json");
fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 2));
console.log(`sha256=${sha256}  size=${(buf.length / 1048576).toFixed(2)}MB`);

// —— 4) gitea API ——
function api(method, urlPath, body) {
  const args = ["-s", "-X", method, "-H", `Authorization: token ${token}`, `${API}${urlPath}`];
  if (body !== undefined) { args.push("-H", "Content-Type: application/json", "-d", JSON.stringify(body)); }
  return execFileSync("curl", args, { encoding: "utf8", maxBuffer: 64 * 1024 * 1024 });
}
function apiJson(method, urlPath, body) {
  const out = api(method, urlPath, body);
  try { return JSON.parse(out); } catch { return null; }
}

// 确保 hot release 存在
let rel = apiJson("GET", `/releases/tags/${TAG}`);
if (!rel || !rel.id) {
  console.log("创建 hot release …");
  rel = apiJson("POST", `/releases`, { tag_name: TAG, target_commitish: "main", name: "热更新通道", body: "asar 热更新包（自动发布）", draft: false, prerelease: false });
}
if (!rel || !rel.id) { console.error("无法创建/获取 hot release"); process.exit(1); }

// 删除同名旧 asset
for (const a of rel.assets || []) {
  if (a.name === bundleName || a.name === "hotupdate.json" || /^bundle-.*\.zip$/.test(a.name)) {
    api("DELETE", `/releases/${rel.id}/assets/${a.id}`);
    console.log("删除旧 asset:", a.name);
  }
}
// 上传 bundle + manifest
function upload(file, name) {
  const code = execFileSync("curl", ["-s", "-o", "/dev/null", "-w", "%{http_code}",
    "-X", "POST", "-H", `Authorization: token ${token}`,
    "-F", `attachment=@${file};type=application/octet-stream`,
    `${API}/releases/${rel.id}/assets?name=${encodeURIComponent(name)}`], { encoding: "utf8" });
  console.log(`上传 ${name} → HTTP ${code}`);
}
upload(bundlePath, bundleName);
upload(manifestPath, "hotupdate.json");

console.log(`\n✅ 热更 v${version} 已发布。`);
console.log(`   minAppVersion=${minAppVersion}  mandatory=${mandatory}  requiresFull=${requiresFull}`);
console.log(`   客户端将从 ${API}/releases/tags/${TAG} 检测到。`);