public static IEnumerable<MappingElement> ToMappingElements(this IEnumerable<string> items,
MappingSourceEntry mappingSource)
{
return items.Select(x => new MappingElement
{
Key = x,
Value = mappingSource.TpItems
.FirstOrDefault(y => x.Equals(y.Name, StringComparison.OrdinalIgnoreCase))
});
}
private MappingContainer GetMappingFor(MappingSourceEntry source, IEnumerable<MappingElement> mapped)
{
var elements = new List<MappingElement>();
IEnumerable<string> thirdPartyItems = source.ThirdPartyItems;
var existingMappingElements = mapped
.FilterOutObsoleteItemsBy(thirdPartyItems)
.FilterOutEmptyItems();
elements.AddRange(existingMappingElements);
var newMappingElements = thirdPartyItems
.FilterOutDuplicateThirdPartyItemsBy(elements)
.ToMappingElements(source);
elements.AddRange(newMappingElements);
var container = new MappingContainer();
container.AddRange(elements.OrderBy(r => r.Key).ToList());
return container;
}