public JobTask UpdateJobTask(JobTaskId jobTaskId, TitleAndDescription titleAndDescription, int order, IEnumerable <JobTaskItem> jobTaskItems)
{
JobTask existingJobTask = _jobTasks.SingleOrDefault(jt => jt.Id == jobTaskId);
Guard.Against.Null(existingJobTask, nameof(existingJobTask));
int currentOrder = existingJobTask.Order;
int newTaskOrder = order > _jobTasks.Max(jt => jt.Order) ? _jobTasks.Max(jt => jt.Order) : order;
existingJobTask
.UpdateTitleAndDescription(titleAndDescription);
existingJobTask.ClearAllJobTaskItems();
if (jobTaskItems.Any())
{
foreach (var jobTaskItem in jobTaskItems)
{
existingJobTask.AddNewJobTaskItem(jobTaskItem);
}
}
if (existingJobTask.Order == newTaskOrder)
{
return(existingJobTask);
}
existingJobTask.PlaceTaskInPosition(newTaskOrder);
// If the new task order is greater than the current order of the job task,
// everything task below it in order gets decremented
if (newTaskOrder > currentOrder)
{
ReorderJobTasks(
_jobTasks.Where(j => j.Order <= newTaskOrder && j.Id != existingJobTask.Id),
jt => jt.DecrementOrder(),
jt => jt.Order != 0
);
}
else
{
ReorderJobTasks(
_jobTasks.Where(j => j.Order >= newTaskOrder && j.Id != existingJobTask.Id),
jt => jt.IncrementOrder(),
jt => jt.Order + 1 < _jobTasks.Count
);
}
return(existingJobTask);
}
