public static WorkbanchCourseState ReduceRemoveWorkbanchCourseRecordAction(WorkbanchCourseState state, RemoveWorkbanchCourseRecordAction action)
{
var rec = state.Course.RootRecord.Find(action.Record.Id);
if (rec != null)
{
var recParent = state.Course.RootRecord.Find(r => r.Children != null && r.Children.Contains(action.Record));
if (recParent != null)
{
recParent.Children.Remove(action.Record);
}
}
return(new WorkbanchCourseState(state.IsLoading, state.Course));
}
public static WorkbanchCourseState ReduceAddWorkbanchCourseRecordAction(WorkbanchCourseState state, AddWorkbanchCourseRecordAction action)
{
if (state.Course.RootRecord.Contains(action.ParentRecord.Id))
{
if (action.ParentRecord.Children == null)
{
action.ParentRecord.Children = new();
}
if (action.Record.Type == RecordType.Article)
{
action.Record.Id = Guid.NewGuid();
}
else if (action.Record.Children == null)
{
action.Record.Children = new();
}
action.ParentRecord.Children = new(action.ParentRecord.Children.Prepend(action.Record));
}
return(new WorkbanchCourseState(state.IsLoading, state.Course));
}
public static WorkbanchCourseState ReduceMoveWorkbanchCourseRecordAction(WorkbanchCourseState state, MoveWorkbanchCourseRecordAction action)
{
if (state.Course.RootRecord.Contains(action.Record.Id))
{
if (action.PreviousElement != null && state.Course.RootRecord.Contains(action.PreviousElement.Id))
{
var destParent = action.DestinationParent != null && state.Course.RootRecord.Contains(action.DestinationParent.Id) ? action.DestinationParent :
state.Course.RootRecord.Find(r => r.Children != null && r.Children.Contains(action.PreviousElement));
state.Course.RootRecord.Find(r => r.Children != null && r.Children.Contains(action.Record)).Children.Remove(action.Record);
destParent.Children.Insert(destParent.Children.IndexOf(action.PreviousElement) + 1, action.Record);
}
else
{
if (action.DestinationParent != null && state.Course.RootRecord.Contains(action.DestinationParent.Id) && action.Record != action.DestinationParent)
{
state.Course.RootRecord.Find(r => r.Children != null && r.Children.Contains(action.Record)).Children.Remove(action.Record);
action.DestinationParent.Children = action.DestinationParent.Children.Prepend(action.Record).ToList();
}
}
}
return(new WorkbanchCourseState(state.IsLoading, state.Course));
}
public static WorkbanchCourseState ReduceEditWorkbanchCourseRecordAction(WorkbanchCourseState state, EditWorkbanchCourseRecordAction action)
{
state.Course.RootRecord.Find(action.Record.Id).Title = action.Record.Title;
return(new WorkbanchCourseState(state.IsLoading, state.Course));
}
public static WorkbanchCourseState ReduceSetWorkbanchCourseAction(WorkbanchCourseState state, SetWorkbanchCourseAction action)
{
return(new WorkbanchCourseState(false, action.Course));
}
public static WorkbanchCourseState ReduceFetchWorkbanchCourseAction(WorkbanchCourseState state, FetchWorkbanchCourseAction action) => new WorkbanchCourseState(true, state.Course);
