protected Presentation Merge(UserIdentity identity,
PresentationInfo presentationInfo,
Slide[] newSlideArr,
Presentation presentationStored,
out LockingInfo[] lockedSlides,
out Slide[] slideAlreadyExists)
{
IEnumerable<Slide> existedSlides = presentationStored.SlideList.Where(
sl => newSlideArr.Any(newsl=>newsl.Id == sl.Id));
if (existedSlides.Count() != 0)
{
slideAlreadyExists = existedSlides.ToArray();
lockedSlides = new LockingInfo[] {};
return null;
}
foreach (Slide slide in newSlideArr)
{
//Slide slideStored = presentationStored.SlideList.Find(
// sl => sl.Id == slide.Id);
//if (slideStored != null) return null;
slide.State = SlideState.Normal;
presentationStored.SlideList.Add(slide);
}
// анализ удаленных слайдов
List<Slide> slideListDeleted = presentationStored.SlideList.FindAll(
sl => !presentationInfo.SlideInfoList.Exists(sli => sli.Id == sl.Id));
if (!IsStandAlone)
{
IEnumerable<LockingInfo> lockedSl = slideListDeleted.Select(
sl => _lockService.GetLockInfo(ObjectKeyCreator.CreateSlideKey(presentationInfo.UniqueName, sl.Id))).Where(
li=>li != null);
if (lockedSl.Count() != 0)
{
lockedSlides = lockedSl.ToArray();
slideAlreadyExists = new Slide[] {};
return null;
}
}
// удаляем слайды
presentationStored.SlideList.RemoveAll(slideListDeleted.Contains);
presentationStored.SavePresentationLevelChanges(presentationInfo);
slideAlreadyExists = new Slide[] { };
lockedSlides = new LockingInfo[] { };
return presentationStored;
}
