/// <summary>
/// Constructor
/// </summary>
/// <param name="jokeStore">The JokeStore</param>
/// <param name="pageService">The PageService</param>
public JokesPageViewModel(IJokeStore jokeStore, IPageService pageService)
{
_jokeStore = jokeStore;
_pageService = pageService;
// Set up commands
LoadDataCommand = new Command(async() => await LoadData());
AddJokeCommand = new Command(async() => await AddJoke());
SelectJokeCommand = new Command <JokeViewModel>(async c => await SelectJoke(c));
DeleteJokeCommand = new Command <JokeViewModel>(async c => await DeleteJoke(c));
// Subscribe to events
MessagingCenter.Subscribe <JokeDetailViewModel, Joke>(this, Events.JokeAdded, OnJokeAdded);
MessagingCenter.Subscribe <JokeDetailViewModel, Joke>(this, Events.JokeUpdated, OnJokeUpdated);
MessagingCenter.Subscribe <JokeOfTheDayViewModel, Joke>(this, Events.JokeAdded, OnJOTDJokeAdded);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="viewModel">The JokeViewModel</param>
/// <param name="jokeStore">The JokeStore</param>
/// <param name="pageService">The Page Service</param>
public JokeDetailViewModel(JokeViewModel viewModel, IJokeStore jokeStore, IPageService pageService)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
_pageService = pageService;
_jokeStore = jokeStore;
// Define commands
SaveCommand = new Command(async() => await Save());
Joke = new Joke
{
Id = viewModel.Id,
Text = viewModel.Text,
Date = viewModel.Date
};
}
