const express = require("express");
const denaClient = require("../lib/denaClient");
const { mapDenaOrderToShahoo, denaErrorMessage } = require("../lib/mapOrder");
const { ok, okPaged } = require("../lib/shahooResponse");
const { requireSession } = require("../middleware/auth");

const router = express.Router();

function parsePagination(pageSize, pageNumber) {
  const limit = Math.max(1, Math.min(Number(pageSize) || 10, 100));
  const page = Math.max(1, Number(pageNumber) + 1);
  return { limit, page };
}

async function fetchDoneOrders(session, pageSize, pageNumber) {
  const { limit, page } = parsePagination(pageSize, pageNumber);
  const orders = await denaClient.getOrders(session, { state: "done", limit, page });
  const content = orders.map(mapDenaOrderToShahoo);
  return { content, count: content.length };
}

router.get("/self/all/:pageSize/:pageNumber", requireSession, async (req, res) => {
  try {
    const { content, count } = await fetchDoneOrders(
      req.session,
      req.params.pageSize,
      req.params.pageNumber
    );
    return res.json(okPaged(content, count));
  } catch {
    return res.json(okPaged([], 0));
  }
});

router.get("/self/done/:pageSize/:pageNumber", requireSession, async (req, res) => {
  try {
    const { content, count } = await fetchDoneOrders(
      req.session,
      req.params.pageSize,
      req.params.pageNumber
    );
    return res.json(okPaged(content, count));
  } catch {
    return res.json(okPaged([], 0));
  }
});

module.exports = router;