/// <summary>
/// Produces an IDescriptiveNotificationFrequency corresponding to the value of the 'type'
/// parameter
/// </summary>
/// <param name="type">
/// String identifying which implementation of
/// IDescriptiveNotificationFrequency to produce and return.
/// </param>
/// <param name="customPeriod">
/// A custom time interval to initialize a CustomNotificationFrequency with, if the
/// 'type' requested is "Custom"
/// </param>
/// <returns>
/// An implementation of IDescriptiveNotificationFrequency corresponding to the 'type'
/// parameter, and initialize with the 'customPeriod' parameter if the value of 'type' is
/// "Custom". null is returned if the 'type' parameter value does not describe a pre-defined
/// type
/// </returns>
public static INotificationFrequency New(NotificationFrequencyType type, TimeSpan customPeriod = new TimeSpan())
{
//TODO: protect against invalid customPeriod
switch (type)
{
case NotificationFrequencyType.Daily: return(new DailyNotificationFrequency());
case NotificationFrequencyType.AlternateDay: return(new AlternateDayNotificationFrequency());
case NotificationFrequencyType.Review: return(new ReviewNotificationFrequency());
case NotificationFrequencyType.Custom: return(new CustomNotificationFrequency(customPeriod));
default: return(null);
}
}
/// <summary>
/// Extracts TaskItem input data from a IAddTaskView and creates a new TaskItem for the
/// application.
/// </summary>
/// <param name="view">
/// Where new TaskItem info was inputted
/// </param>
public void CreateTask(IAddTaskView view)
{
//map the view's notification frequency type string to an enum value
NotificationFrequencyType notificationFrequencyType =
frequenctTypeStrMap.Where(x => x.Value == view.FrequencyType).First().Key;
//create input for use-case from data of the view
CreateTaskInput input = new CreateTaskInput {
Title = view.Title,
Description = view.Description,
StartTime = view.StartTime,
R = view.Color.R,
G = view.Color.G,
B = view.Color.B,
NotificationFrequencyType = notificationFrequencyType,
CustomNotificationFrequency = view.CustomFrequency
};
//create UseCase instance and assign input structure to its input port
var uc = taskSchedulerApplication.NewCreateTaskUseCase();
//run the use case
CreateTaskOutput output = uc.Execute(input);
if (output.Success)
{
//get the taskItemDTO returned creatd by the executed usecase
TaskItemDTO taskDTO = output.TaskItemDTO;
//get a string representation of the taskDTO's notification frequency type
string frequencyTypeStr = frequenctTypeStrMap[taskDTO.NotificationFrequencyType];
//convert the taskDTO's rgb color to a Windows brush
SolidColorBrush colorBrush = new SolidColorBrush(Windows.UI.Color.FromArgb(255, taskDTO.R, taskDTO.G, taskDTO.B));
//create task item model from taskDTO
TaskItemModel newTaskItemModel = new TaskItemModel()
{
Id = taskDTO.Id,
Title = taskDTO.Title,
Description = taskDTO.Description,
StartTime = taskDTO.StartTime,
FrequencyType = frequencyTypeStr,
NotificationFrequency = taskDTO.CustomNotificationFrequency,
Color = colorBrush
};
//fire the TaskCreated event
OnTaskCreated(newTaskItemModel);
//clear the views input fields and close it
view.ClearFields();
view.CloseSelf();
}
else
{
//transfer the use-cases error to the view
view.ApplicationErrorMessage = output.Error;
view.ApplicationError = true;
}
}
