import { Router } from "express";
import type { Request } from "express";
import { graphqlClient } from "../lib/graphqlClient";
import { respondWithError } from "../lib/error";
import {
  WorksDocument,
  AuthorsDocument,
  type WorksQuery,
  type AuthorsQuery,
} from "../../shared/generated/graphql";

const router = Router();

interface GqlRequest extends Request {
  gql?: typeof graphqlClient;
}

// GET /api/search
router.get("/", async (req: GqlRequest, res) => {
  try {
    const q = req.query.q as string;

    if (!q) {
      return res.json({ works: [], authors: [] });
    }

    const client = req.gql || graphqlClient;

    // Fetch works matching the query
    const { works } = await client.request<WorksQuery>(
      WorksDocument,
      {
        search: q,
        limit: 10 // Limit results for general search
      }
    );

    // Fetch authors matching the query
    const { authors } = await client.request<AuthorsQuery>(
      AuthorsDocument,
      {
        search: q,
        limit: 10
      }
    );

    res.json({ works, authors });
  } catch (error) {
    respondWithError(res, error, "Failed to perform search");
  }
});

export default router;