private bool ApplyManufacturerDiscount(DiscountCoupon discountCoupon, Cart cart)
{
var manufacturerIds = discountCoupon.RestrictionIds();
var cartItemUpdated = false;
foreach (var cartItem in cart.CartItems)
{
if (cartItem.Product.ManufacturerId.HasValue &&
manufacturerIds.Contains(cartItem.Product.ManufacturerId.Value))
{
cartItem.Discount = discountCoupon.GetDiscountAmount(cartItem.Price, cartItem.Quantity);
cartItemUpdated = true;
}
}
if (cartItemUpdated && discountCoupon.MaximumDiscountAmount > 0 &&
cart.CartItems.Sum(x => x.Discount) > discountCoupon.MaximumDiscountAmount)
{
cart.Discount = discountCoupon.MaximumDiscountAmount;
foreach (var cartItem in cart.CartItems)
{
cartItem.Discount = 0;
}
}
return(cartItemUpdated);
}
private bool ApplyVendorDiscount(DiscountCoupon discountCoupon, Cart cart)
{
var vendorIds = discountCoupon.RestrictionIds().ToArray();
var vendorProductIds = _productService.GetProductIdsByVendorIds(vendorIds);
var cartUpdated = false;
foreach (var cartItem in cart.CartItems)
{
if (vendorProductIds.Contains(cartItem.ProductId))
{
cartItem.Discount = discountCoupon.GetDiscountAmount(cartItem.Price, cartItem.Quantity);
cartUpdated = true;
}
}
if (cartUpdated && discountCoupon.MaximumDiscountAmount > 0 &&
cart.CartItems.Sum(x => x.Discount) > discountCoupon.MaximumDiscountAmount)
{
cart.Discount = discountCoupon.MaximumDiscountAmount;
foreach (var cartItem in cart.CartItems)
{
cartItem.Discount = 0;
}
}
return(cartUpdated);
}
private bool ApplyRoleDiscount(DiscountCoupon discountCoupon, Cart cart)
{
var roleIds = discountCoupon.RestrictionIds();
var user = _userService.Get(cart.UserId);
if (user.Roles.Any(x => roleIds.Contains(x.Id)))
{
foreach (var cartItem in cart.CartItems)
{
cartItem.Discount = discountCoupon.GetDiscountAmount(cartItem.Price, cartItem.Quantity);
}
if (discountCoupon.MaximumDiscountAmount > 0 &&
cart.CartItems.Sum(x => x.Discount) > discountCoupon.MaximumDiscountAmount)
{
cart.Discount = discountCoupon.MaximumDiscountAmount;
foreach (var cartItem in cart.CartItems)
{
cartItem.Discount = 0;
}
}
return(true);
}
return(false);
}
private bool ApplyCategoryDiscount(DiscountCoupon discountCoupon, Cart cart)
{
var categoryIds = discountCoupon.RestrictionIds().ToArray();
var categoryProductIds = _productService.GetProductIdsByCategoryIds(categoryIds);
var cartUpdated = false;
foreach (var cartItem in cart.CartItems)
{
if (categoryProductIds.Contains(cartItem.ProductId))
{
cartItem.Discount = discountCoupon.GetDiscountAmount(cartItem.Price, cartItem.Quantity);
cartUpdated = true;
}
}
return(cartUpdated);
}
private bool ApplyProductDiscount(DiscountCoupon discountCoupon, Cart cart)
{
var productIds = discountCoupon.RestrictionIds();
var cartItemUpdated = false;
foreach (var cartItem in cart.CartItems)
{
if (!productIds.Contains(cartItem.ProductId))
{
continue;
}
cartItem.Discount = discountCoupon.GetDiscountAmount(cartItem.Price, cartItem.Quantity);
cartItem.FinalPrice = cartItem.Price - cartItem.Discount;
cartItemUpdated = true;
}
return(cartItemUpdated);
}
private decimal GetProductDiscountedPrice(DiscountCoupon discountCoupon, Product product, ProductVariant variant, User user, int quantity)
{
var price = variant?.Price ?? product.Price;
switch (discountCoupon.RestrictionType)
{
case RestrictionType.Products:
return(discountCoupon.RestrictionIds().Contains(product.Id) ? discountCoupon.GetDiscountAmount(price, quantity) : 0);
case RestrictionType.Categories:
var categoryIds = discountCoupon.RestrictionIds().ToArray();
var categoryProductIds = _productService.GetProductIdsByCategoryIds(categoryIds);
return(categoryProductIds.Contains(product.Id) ? discountCoupon.GetDiscountAmount(price, quantity) : 0);
case RestrictionType.Users:
return(discountCoupon.RestrictionIds().Contains(user.Id) ? discountCoupon.GetDiscountAmount(price, quantity) : 0);
case RestrictionType.UserGroups:
return(0);
case RestrictionType.Roles:
var roleIds = discountCoupon.RestrictionIds();
return(user.Roles.Any(x => roleIds.Contains(x.Id)) ? discountCoupon.GetDiscountAmount(price, quantity) : 0);
case RestrictionType.Vendors:
var vendorIds = discountCoupon.RestrictionIds().ToArray();
var vendorProductIds = _productService.GetProductIdsByVendorIds(vendorIds);
return(vendorProductIds.Contains(product.Id) ? discountCoupon.GetDiscountAmount(price, quantity) : 0);
case RestrictionType.Manufacturers:
return(product.ManufacturerId.HasValue &&
discountCoupon.RestrictionIds().Contains(product.ManufacturerId.Value)
? discountCoupon.GetDiscountAmount(price, quantity)
: 0);
default:
return(0);
}
}