private async Task <ListProductsResponse> FilterProducts(IQueryable <Product> products, ProductFilter productFilter)
{
//price
if (productFilter.MinPrice.HasValue)
{
products = products
.Where(p => p.Price >= productFilter.MinPrice.Value);
}
if (productFilter.MaxPrice.HasValue)
{
products = products
.Where(p => p.Price <= productFilter.MaxPrice.Value);
}
//size
if (!string.IsNullOrWhiteSpace(productFilter.Sizes))
{
var sizeTypeIds = SizeType.ParseIds(productFilter.Sizes);
products = products
.Where(p => sizeTypeIds.Any(fs => p.Sizes.Any(s => s.Id == fs)));
}
//brand
if (!string.IsNullOrWhiteSpace(productFilter.Brands))
{
var brandTypeIds = BrandType.ParseIds(productFilter.Brands);
products = products
.Where(p => brandTypeIds.Any(b => p.BrandTypeId == b));
}
//category
if (productFilter.CategoryUid.HasValue)
{
products = products
.Where(p => p.Categories.Any(c => c.Uid == productFilter.CategoryUid.Value));
}
var totalRecords = await products.CountAsync();
//paging
if (productFilter.PageSize.HasValue && productFilter.PageIndex.HasValue)
{
var pageSize = productFilter.PageSize.Value;
var pageIndex = productFilter.PageIndex.Value;
products = products
.OrderBy(p => p.Id)
.Skip(pageIndex * pageSize)
.Take((pageIndex + 1) * pageSize);
}
return(new ListProductsResponse(products, totalRecords));
}
