const Coupon = require('../models/Coupon');
const { successResponse, errorResponse } = require('../utils/apiResponse');

const getCoupons = async (req, res, next) => {
  try {
    const coupons = await Coupon.find({}).sort({ createdAt: -1 });
    return successResponse(res, 'Coupons retrieved', coupons);
  } catch (error) {
    next(error);
  }
};

const createCoupon = async (req, res, next) => {
  try {
    const coupon = new Coupon(req.body);
    const saved = await coupon.save();
    return successResponse(res, 'Coupon created', saved, 201);
  } catch (error) {
    next(error);
  }
};

const deleteCoupon = async (req, res, next) => {
  try {
    const coupon = await Coupon.findByIdAndDelete(req.params.id);
    if (!coupon) return errorResponse(res, 'Coupon not found', [], 404);
    return successResponse(res, 'Coupon deleted');
  } catch (error) {
    next(error);
  }
};

module.exports = { getCoupons, createCoupon, deleteCoupon };