import tauriConfig from "../../src-tauri/tauri.conf.json";

export const getBuildConfig = () => {
  if (typeof process === "undefined") {
    throw Error(
      "[Server Config] you are importing a nodejs-only module outside of nodejs",
    );
  }
  const buildMode = process.env.BUILD_MODE ?? "standalone";
  const isApp = !!process.env.BUILD_APP;
  const version = "v" + tauriConfig.package.version;

  const commitInfo = (() => {
    try {
      const childProcess = require("child_process");
      const commitDate: string = childProcess
        .execSync('git log -1 --format="%at000" --date=unix')
        .toString()
        .trim();
      const commitHash: string = childProcess
        .execSync('git log --pretty=format:"%H" -n 1')
        .toString()
        .trim();

      return { commitDate, commitHash };
    } catch (e) {
      console.error("[Build Config] No git or not from git repo.");
      return {
        commitDate: "unknown",
        commitHash: "unknown",
      };
    }
  })();

  const {
    OAUTH_AUTHORIZE_ENDPOINT,
    OAUTH_CLIENT_ID,
    OAUTH_REDIRECT_URI,
    OAUTH_CLIENT_SECRET,
    OAUTH_USERINFO,
    BASE_PATH,
  } = process.env;
  let authorizeUrl = "";
  if (OAUTH_AUTHORIZE_ENDPOINT && OAUTH_CLIENT_ID && OAUTH_REDIRECT_URI) {
    authorizeUrl = `${OAUTH_AUTHORIZE_ENDPOINT}?client_id=${OAUTH_CLIENT_ID}&response_type=token&scope=userinfo&redirect_uri=${encodeURIComponent(
      OAUTH_REDIRECT_URI,
    )}`;
  }

  return {
    version,
    ...commitInfo,
    buildMode,
    isApp,
    authorizeUrl,
    baseApi: BASE_PATH,
  };
};

export type BuildConfig = ReturnType<typeof getBuildConfig>;