public MyProjectsPageViewModel(
INavigationService navigationService,
IProjectDataStore projectDataStore,
IUserDialogs dialogService,
IUserService userService,
IAnalyticService analyticService) : base(navigationService)
{
Title = "My Projects";
this.WhenActivated((CompositeDisposable _) =>
{
// track every time this screen is activated
analyticService.TrackScreen("my-projects");
});
var initialize = ReactiveCommand.CreateFromTask <Unit, IEnumerable <Project> >(_ =>
{
AssertRunningOnBackgroundThread();
return(projectDataStore.LoadProjectsForUser(userService.AuthenticatedUser.AccountId));
});
initialize
.Subscribe(projects =>
{
Projects.Reset(projects.Select(proj => new MyProjectViewModel(proj, Delete, Close, Edit)));
});
Projects.ActOnEveryObject(
_ =>
{
this.Log().Debug("Item added");
},
projViewModel =>
{
this.Log().Debug("Item removed");
// make sure we dispose of the item to release the subscription from the item's
// commands to our commands
projViewModel.Dispose();
});
// When an exception is thrown while loading data, log the error and let the user handle
// the exception
initialize.ThrownExceptions
.SelectMany(exception =>
{
this.Log().ErrorException("Error loading or refreshing data", exception);
return(SharedInteractions.Error.Handle(exception));
})
.Subscribe();
Activator
.Activated
.Take(1)
.ObserveOn(RxApp.TaskpoolScheduler)
.InvokeCommand(initialize);
ViewProjectDetails = ReactiveCommand.CreateFromTask <MyProjectViewModel, Unit>(async project =>
{
analyticService.TrackTapEvent("view-project");
await NavigationService.NavigateAsync(
nameof(ProjectDetailsPage),
new NavigationParameters
{
{ "project", project.Project }
}).ConfigureAwait(false);
return(Unit.Default);
});
Delete = ReactiveCommand.CreateFromTask <MyProjectViewModel, Unit>(async project =>
{
bool shouldDelete = await dialogService.ConfirmAsync(
new ConfirmConfig
{
Message = "Are you sure you want to delete the project?",
OkText = "Delete",
CancelText = "Cancel"
});
if (!shouldDelete)
{
return(Unit.Default);
}
analyticService.TrackTapEvent("delete-project");
// remove the project
await projectDataStore.DeleteProjectAsync(project.Project);
Projects.Remove(project);
dialogService.Toast(new ToastConfig("Project deleted successfully!"));
return(Unit.Default);
});
Close = ReactiveCommand.CreateFromTask <MyProjectViewModel, Unit>(async project =>
{
bool shouldDelete = await dialogService.ConfirmAsync(
new ConfirmConfig
{
Message = "Are you sure you want to close the project?",
OkText = "Close",
CancelText = "Cancel"
});
if (!shouldDelete)
{
return(Unit.Default);
}
analyticService.TrackTapEvent("close-project");
//project.Project.Status = ProjectStatus.Closed;
// TODO: Save to the database
return(Unit.Default);
});
Edit = ReactiveCommand.CreateFromTask <MyProjectViewModel, Unit>(async project =>
{
analyticService.TrackTapEvent("edit-project");
await NavigationService.NavigateAsync(
$"NavigationPage/{nameof(EditProjectPage)}",
new NavigationParameters
{
{ "project", project.Project }
},
useModalNavigation: true).ConfigureAwait(false);
return(Unit.Default);
});
initialize.IsExecuting
.StartWith(false)
.ToProperty(this, x => x.IsBusy, out _isBusy, scheduler: RxApp.MainThreadScheduler);
}
