import { Router } from "express";
import type { Request } from "express";
import { graphqlClient } from "../lib/graphqlClient";
import { respondWithError } from "../lib/error";
import {
  GetTagDocument,
  TagsDocument,
  type GetTagQuery,
  type TagsQuery,
} from "../../shared/generated/graphql";

interface GqlRequest extends Request {
  gql?: typeof graphqlClient;
}
const router = Router();

// GET /api/tags
router.get("/", async (req: GqlRequest, res) => {
  try {
    const variables = {
      limit: req.query.limit ? Number(req.query.limit) : undefined,
      offset: req.query.offset ? Number(req.query.offset) : undefined,
    };
    const client = req.gql || graphqlClient;
    const { tags } = await client.request<TagsQuery>(TagsDocument, variables);
    res.json(tags);
  } catch (error) {
    respondWithError(res, error, "Failed to fetch tags");
  }
});

// GET /api/tags/:id
router.get("/:id", async (req: GqlRequest, res) => {
  try {
    const client = req.gql || graphqlClient;
    const { tag } = await client.request<GetTagQuery>(GetTagDocument, {
      id: req.params.id,
    });
    if (!tag) return res.status(404).json({ message: "Tag not found" });
    res.json(tag);
  } catch (error) {
    respondWithError(res, error, "Failed to fetch tag");
  }
});

export default router;