import * as http from "node:http";
import { readExpectedToken, requireBearer } from "./auth.js";
import {
  handleReposClone,
  handleReposList,
  handleReposLoad,
} from "./handlers.js";

const HOST = process.env.REPOS_DEVTOOLS_HOST ?? "127.0.0.1";
const PORT = Number(process.env.REPOS_DEVTOOLS_PORT ?? "37140");

const main = (): void => {
  const token = readExpectedToken();
  if (token.length === 0) {
    console.error("repos-devtools-server: set REPOS_DEVTOOLS_TOKEN (non-empty secret).");
    process.exit(1);
  }

  const server = http.createServer((req, res) => {
    void (async () => {
      try {
        if (!requireBearer(req, res, token)) {
          return;
        }
        const url = new URL(req.url ?? "/", `http://${HOST}`);
        const p = url.pathname;
        if (req.method === "POST" && p === "/repos-clone") {
          await handleReposClone(req, res);
          return;
        }
        if (req.method === "GET" && p === "/repos-list") {
          await handleReposList(res);
          return;
        }
        if (req.method === "POST" && p === "/repos-load") {
          await handleReposLoad(req, res);
          return;
        }
        res.writeHead(404, { "Content-Type": "application/json; charset=utf-8" });
        res.end(JSON.stringify({ error: "Not found" }));
      } catch (e) {
        const msg = e instanceof Error ? e.message : String(e);
        res.writeHead(400, { "Content-Type": "application/json; charset=utf-8" });
        res.end(JSON.stringify({ error: msg }));
      }
    })();
  });

  server.listen(PORT, HOST, () => {
    console.error(
      `repos-devtools-server listening on http://${HOST}:${PORT} (root=${process.env.REPOS_DEVTOOLS_ROOT ?? "/home/ncantu/code"})`,
    );
  });
};

main();