import express, { type Express } from "express";
import cors from "cors";
import pinoHttp from "pino-http";
import router from "./routes";
import { logger } from "./lib/logger";
import { clerkMiddleware } from "@clerk/express";
import { publishableKeyFromHost } from "@clerk/shared/keys";
import { CLERK_PROXY_PATH, clerkProxyMiddleware, getClerkProxyHost } from "./middlewares/clerkProxyMiddleware";

const app: Express = express();

app.use(
  pinoHttp({
    logger,
    serializers: {
      req(req) {
        return {
          id: req.id,
          method: req.method,
          url: req.url?.split("?")[0],
        };
      },
      res(res) {
        return {
          statusCode: res.statusCode,
        };
      },
    },
  }),
);
app.use(cors({ credentials: true, origin: true }));
app.use(CLERK_PROXY_PATH, clerkProxyMiddleware());
app.use(express.json({ limit: '512kb' }));
app.use(express.urlencoded({ extended: true }));

app.use(
  clerkMiddleware((req) => ({
    publishableKey: publishableKeyFromHost(
      getClerkProxyHost(req) ?? "",
      process.env.CLERK_PUBLISHABLE_KEY,
    ),
    authorizedParties: ["https://ecomhub.pk", "https://www.ecomhub.pk"],
  })),
);
app.use("/api", router);

app.use((err: unknown, req: express.Request, res: express.Response, _next: express.NextFunction) => {
  logger.error({ err }, "Unhandled request error");
  if (!res.headersSent) res.status(500).json({ error: "Something went wrong. Please try again." });
});

export default app;