private void RestructureViewModels(ModifyModel modifyModel, CommunityViewModel changingViewModel)
{
AgentViewModel[] agents = changingViewModel.FindItemsByType <AgentViewModel>().ToArray();
MessageViewModel[] messages = changingViewModel.FindItemsByType <MessageViewModel>().ToArray();
foreach (AgentViewModel agent in agents)
{
changingViewModel.RemoveItem(agent);
}
foreach (MessageViewModel message in messages)
{
changingViewModel.RemoveItem(message);
}
string oldNamespace = modifyModel.Modification.OldValue.AssertTypeOf <string>() ?? string.Empty;
string newNamespace = modifyModel.Modification.NewValue.AssertTypeOf <string>() ?? string.Empty;
UpdateRelativeRootFolder(changingViewModel, oldNamespace, newNamespace);
foreach (AgentViewModel agent in agents)
{
agent.FullName = UpdateFullName(agent.FullName, agent.RelativeNamespace);
changingViewModel.AddItem(agent);
}
foreach (MessageViewModel message in messages)
{
message.FullName = UpdateFullName(message.FullName, message.RelativeNamespace);
changingViewModel.AddItem(message);
}
string UpdateFullName(string oldFullName, string relativeNamespace)
{
if (!relativeNamespace.StartsWith("."))
{
return(oldFullName);
}
string relativeFullName = oldFullName.Substring(oldNamespace.Length);
if (!relativeFullName.StartsWith(".", StringComparison.Ordinal))
{
relativeFullName = $".{relativeFullName}";
}
return(string.IsNullOrEmpty(newNamespace)
? relativeFullName.Substring(1)
: newNamespace + relativeFullName);
}
}
private static void UpdateRelativeRootFolder(CommunityViewModel changingViewModel, string oldNamespace,
string newNamespace)
{
if (!string.IsNullOrEmpty(oldNamespace))
{
FolderViewModel rootFolder = changingViewModel.Items.OfType <FolderViewModel>()
.First(f => f.IsRelativeRoot);
if (!string.IsNullOrEmpty(newNamespace))
{
rootFolder.Name = newNamespace;
}
else
{
changingViewModel.RemoveItem(rootFolder);
}
}
else if (!string.IsNullOrEmpty(newNamespace))
{
FolderViewModel rootFolder = new()
{
Name = newNamespace,
IsRelativeRoot = true
};
changingViewModel.Items.Add(rootFolder);
}
}
private void ChangeMessages(ModifyModel modifyModel, CommunityViewModel changingViewModel)
{
switch (modifyModel.Modification.ModificationType)
{
case ModificationType.Add:
AddMessage();
break;
case ModificationType.Remove:
RemoveMessage();
break;
case ModificationType.Change:
RemoveMessage();
AddMessage();
break;
}
void AddMessage()
{
MessageModel messageModel = modifyModel.Modification.NewValue.AssertTypeOf <MessageModel>();
MessageViewModel viewModel = messageModel.CreateViewModel(changingViewModel);
changingViewModel.AddItem(viewModel);
(changingViewModel.FindItemByType <AgentViewModel>()?.AvailableItems
?? changingViewModel.FindItemByType <MessageViewModel>()?.AvailableItems)?.AvailableMessages.Add(viewModel);
}
void RemoveMessage()
{
MessageModel messageModel = modifyModel.Modification.OldValue.AssertTypeOf <MessageModel>();
MessageViewModel viewModel = (MessageViewModel)changingViewModel.FindViewItemById(messageModel.Id);
changingViewModel.RemoveItem(viewModel);
(changingViewModel.FindItemByType <AgentViewModel>()?.AvailableItems
?? changingViewModel.FindItemByType <MessageViewModel>()?.AvailableItems)?.AvailableMessages.Remove(viewModel);
}
}