public void AddCouponUsage()

in src/Modules/SimplCommerce.Module.Pricing/Services/CouponService.cs [165:209]
39 lines of code
7 McCabe index (conditional complexity)

        public void AddCouponUsage(long customerId, long orderId, CouponValidationResult couponValidationResult)
        {
            if (!couponValidationResult.Succeeded || couponValidationResult.CartRule == null)
            {
                return;
            }

            CartRuleUsage couponUsage;
            switch (couponValidationResult.CartRule.RuleToApply)
            {
                case "cart_fixed":
                    couponUsage = new CartRuleUsage
                    {
                        UserId = customerId,
                        OrderId = orderId,
                        CouponId = couponValidationResult.CouponId,
                        CartRuleId = couponValidationResult.CartRule.Id
                    };

                    _cartRuleUsageRepository.Add(couponUsage);
                    break;

                case "by_percent":
                    foreach (var item in couponValidationResult.DiscountedProducts)
                    {
                        for (var i = 0; i < item.Quantity; i++)
                        {
                            couponUsage = new CartRuleUsage
                            {
                                UserId = customerId,
                                OrderId = orderId,
                                CouponId = couponValidationResult.CouponId,
                                CartRuleId = couponValidationResult.CartRule.Id
                            };

                            _cartRuleUsageRepository.Add(couponUsage);
                        }
                    }

                    break;

                default:
                    throw new InvalidOperationException($"{couponValidationResult.CartRule.RuleToApply} is not supported");
            }
        }