#!/usr/bin/env node
// backend: 运行带 Air 热加载的 Go control-plane。
import { spawn } from "node:child_process";
import { readFileSync, existsSync } from "node:fs";
import { fileURLToPath } from "node:url";
import path from "node:path";

const root = path.dirname(path.dirname(fileURLToPath(import.meta.url)));
const envPath = path.join(root, ".env");

// 简易 KEY=value 解析（与 compose 的 env_file 语法一致，无需处理引号）。
const overrides = {};
if (existsSync(envPath)) {
  for (const line of readFileSync(envPath, "utf8").split("\n")) {
    const m = /^([A-Za-z_][A-Za-z0-9_]*)=(.*)$/.exec(line.trim());
    if (m && !(m[1] in overrides)) overrides[m[1]] = m[2];
  }
} else {
  console.warn("[dev-backend] 未找到 .env，使用本地开发默认值。");
}

if (!overrides.CONTROL_PLANE_USERNAME) overrides.CONTROL_PLANE_USERNAME = "admin";
if (!overrides.CONTROL_PLANE_PASSWORD) overrides.CONTROL_PLANE_PASSWORD = "admin123";
const devMasterKey = Buffer.from("creatorhub dev  local master key", "utf8").toString("base64");
if (Buffer.from(overrides.CREATORHUB_CREDENTIAL_MASTER_KEY ?? "", "base64").length !== 32) {
  if (overrides.CREATORHUB_CREDENTIAL_MASTER_KEY) {
    console.error("[dev-backend] .env 的 CREATORHUB_CREDENTIAL_MASTER_KEY 不是 32 字节 base64，本地开发改用固定开发密钥。");
  }
  overrides.CREATORHUB_CREDENTIAL_MASTER_KEY = devMasterKey;
}
if (!overrides.LISTEN_ADDR) overrides.LISTEN_ADDR = ":8082";
if (!overrides.DATABASE_URL) {
  const postgresPort = overrides.CREATORHUB_POSTGRES_PORT || "15433";
  overrides.DATABASE_URL = `postgres://creatorhub@127.0.0.1:${postgresPort}/creatorhub?sslmode=disable`;
}
if (!overrides.CREATORHUB_CREDENTIAL_STORE_DIR) overrides.CREATORHUB_CREDENTIAL_STORE_DIR = path.join(root, ".dev-credentials");
if (!overrides.WEB_DIR) overrides.WEB_DIR = path.join(root, "web", "dist");
if (!overrides.LOG_LEVEL) overrides.LOG_LEVEL = "debug";
if (!overrides.NATIVE_GATEWAY_ENDPOINT) overrides.NATIVE_GATEWAY_ENDPOINT = "http://127.0.0.1:28187";

const env = { ...process.env, ...overrides };
const air = spawn("air", ["-c", ".air.toml", ...process.argv.slice(2)], {
  cwd: root,
  env,
  stdio: "inherit",
});
air.on("exit", (code) => process.exit(code ?? 0));