/**
 * Loads per-bodyshop RR routing from Hasura.
 * Expected table fields (adapt if your schema differs):
 *   - bodyshops.id = $bodyshopId
 *   - bodyshops.rr_dealerid (string)
 *   - bodyshops.rr_configuration JSON { storeNumber?, branchNumber? }
 *
 * Requires env:
 *   HASURA_GRAPHQL_ENDPOINT, HASURA_ADMIN_SECRET
 */
const { GraphQLClient, gql } = require("graphql-request");

const HASURA_URL = process.env.HASURA_GRAPHQL_ENDPOINT || process.env.HASURA_URL;
const HASURA_SECRET = process.env.HASURA_ADMIN_SECRET || process.env.HASURA_GRAPHQL_ADMIN_SECRET;

if (!HASURA_URL || !HASURA_SECRET) {
  // Warn loudly at startup; you can hard fail if you prefer
  console.warn("[RR] HASURA env not set (HASURA_GRAPHQL_ENDPOINT / HASURA_ADMIN_SECRET).");
}

const client = HASURA_URL
  ? new GraphQLClient(HASURA_URL, {
      headers: { "x-hasura-admin-secret": HASURA_SECRET }
    })
  : null;

const Q_BODYSHOP_RR = gql`
  query RR_Config($id: uuid!) {
    bodyshops_by_pk(id: $id) {
      id
      rr_dealerid
      rr_configuration
    }
  }
`;

/**
 * @param {string} bodyshopId
 * @returns {Promise<{dealerNumber:string, storeNumber?:string, areaNumber?:string}>}
 */
async function getRRConfigForBodyshop(bodyshopId) {
  if (!client) throw new Error("Hasura client not configured.");

  const data = await client.request(Q_BODYSHOP_RR, { id: bodyshopId });
  const row = data?.bodyshops_by_pk;
  if (!row) throw new Error(`Bodyshop not found: ${bodyshopId}`);

  const dealerNumber = row.rr_dealerid;

  const cfg = row.rr_configuration || {};

  if (!dealerNumber) {
    throw new Error(`RR not configured for bodyshop ${bodyshopId} (missing rr_dealerid).`);
  }

  // The RR client expects "areaNumber" (Rome "branch")
  const storeNumber = cfg.storeNumber || cfg.store_no || cfg.store || null;
  const areaNumber = cfg.branchNumber || cfg.branch_no || cfg.branch || null;

  return { dealerNumber, storeNumber, areaNumber };
}

module.exports = { getRRConfigForBodyshop };