public ListEntrySearchResult Search(SearchCriteria criteria)
{
var result = new ListEntrySearchResult();
var skip = 0;
var take = 0;
// because products and categories represent in search result as two separated collections for handle paging request
// we should join two resulting collection artificially
// search categories
var responseGroupCopy = criteria.ResponseGroup;
if (criteria.ResponseGroup.HasFlag(Flags.WithCategories))
{
criteria.ResponseGroup &= ~Flags.WithProducts;
var searchResult = _searchService.Search(criteria);
var totalCount = searchResult.Categories.Count;
skip = GetSkip(criteria, totalCount);
take = GetTake(criteria, totalCount);
var pagedCategories = searchResult.Categories.Skip(skip).Take(take);
var categories = pagedCategories.Select(
category => new ListEntryCategory(category.ToWebModel(_blobUrlResolver)));
result.TotalCount = totalCount;
result.ListEntries.AddRange(categories);
}
criteria.ResponseGroup = responseGroupCopy;
// search products
if (criteria.ResponseGroup.HasFlag(Flags.WithProducts))
{
criteria.ResponseGroup &= ~Flags.WithCategories;
criteria.Skip -= skip;
criteria.Take -= take;
var searchResult = _searchService.Search(criteria);
var products = searchResult.Products.Select(
product => new ListEntryProduct(product.ToWebModel(_blobUrlResolver)));
result.TotalCount += searchResult.ProductsTotalCount;
result.ListEntries.AddRange(products);
}
return(result);
}
private static int GetTake(SearchCriteria criteria, int totalCount)
{
return(Math.Min(criteria.Take, Math.Max(0, totalCount - criteria.Skip)));
}
private static int GetSkip(SearchCriteria criteria, int totalCount)
{
return(Math.Min(totalCount, criteria.Skip));
}
