import type { NextApiRequest, NextApiResponse } from "next";
import { documentPage, saveDocumentBatch } from "@/lib/docs";
import { authorizeDocuments, documentApiError, idempotency, pagination, parseDocument } from "@/lib/documents-api";

export const config = { api: { bodyParser: { sizeLimit: "8mb" } } };
export default function handler(request: NextApiRequest, response: NextApiResponse) {
  try {
    const key = authorizeDocuments(request, response, request.method === "POST");
    if (!key) return;
    if (request.method === "GET") {
      const { limit, offset } = pagination(request);
      return response.status(200).json(documentPage(limit, offset));
    }
    if (request.method === "POST") {
      const result = saveDocumentBatch([parseDocument(request.body)], idempotency(request, key.id));
      return response.status(200).json({ document: result.documents[0], replayed: result.replayed });
    }
    response.setHeader("Allow", "GET, POST");
    return response.status(405).end();
  } catch (error) { return documentApiError(response, error); }
}