public RegistrationTypeSelectionPageViewModel(
INavigationService navigationService,
IAnalyticService analyticService,
IFirebaseAuthService authService,
IUserDialogs dialogs) : base(navigationService)
{
Title = "Registration Type";
analyticService.TrackScreen("registration-type");
Tradesman = ReactiveCommand.CreateFromTask(async() =>
{
await dialogs.AlertAsync("Coming Soon!").ConfigureAwait(false);
analyticService.TrackTapEvent("register-as-tradesman");
//await navigationService.NavigateAsync(nameof(TradesmentRegistrationPage)).ConfigureAwait(false);
});
Contractor = ReactiveCommand.CreateFromTask(async() =>
{
analyticService.TrackTapEvent("register-as-contractor");
await navigationService.NavigateAsync(
nameof(ContractorRegistrationPage),
new NavigationParameters {
{ "user_id", _userId }
}).ConfigureAwait(false);
});
GoBack = ReactiveCommand.CreateFromTask <Unit, Unit>(async _ =>
{
var result = await dialogs.ConfirmAsync(
new ConfirmConfig
{
Title = "Cancel Account Creation?",
Message = "Are you sure you want to cancel account creation? This will discard any information you have entered so far",
OkText = "Yes",
CancelText = "No"
});
if (result)
{
analyticService.TrackTapEvent("cancel-account-creation");
// make sure we log out so the user has to log in again
await authService.Logout();
await NavigationService.NavigateToLoginPageAsync().ConfigureAwait(false);
}
return(Unit.Default);
});
NavigatingTo
.Where(args => args.ContainsKey("user_id"))
.Select(args => args["user_id"].ToString())
.BindTo(this, x => x._userId);
}
public ContactUsPageViewModel(
INavigationService navigationService,
IAnalyticService analyticService,
IUserService userService) : base(navigationService)
{
Title = "Contact Us";
analyticService.TrackScreen("contact-us-page");
AddValidationRules();
Submit = ReactiveCommand.CreateFromTask(
async _ =>
{
if (!IsValid())
{
return;
}
analyticService.TrackTapEvent("submit");
var random = new Random();
await Task.Delay(random.Next(400, 2000));
await NavigationService.GoBackAsync(useModalNavigation: true).ConfigureAwait(false);
});
Submit.IsExecuting
.StartWith(false)
.ToProperty(this, x => x.IsBusy, out _isBusy);
NavigatingTo
.Take(1)
.Subscribe(_ =>
{
Email.Value = userService.AuthenticatedUser.EmailAddress;
});
}
public ProjectsPageViewModel(
INavigationService navigationService,
IProjectDataStore projectDataStore,
IAnalyticService analyticService) : base(navigationService)
{
Title = "Projects";
this.WhenActivated((CompositeDisposable _) =>
{
// track every time this screen is activated
analyticService.TrackScreen("my-projects");
});
ViewProjectDetails = ReactiveCommand.CreateFromTask <Project, Unit>(async project =>
{
analyticService.TrackTapEvent("view-project");
await NavigationService.NavigateAsync(
nameof(ProjectDetailsPage),
new NavigationParameters
{
{ "project", project }
}).ConfigureAwait(false);
return(Unit.Default);
});
AddProject = ReactiveCommand.CreateFromTask(async() =>
{
analyticService.TrackTapEvent("new-project");
await NavigationService.NavigateAsync($"NavigationPage/{nameof(EditProjectPage)}", useModalNavigation: true).ConfigureAwait(false);
});
Filter = ReactiveCommand.CreateFromTask(async() =>
{
// TODO: Finish this
await NavigationService.NavigateAsync(
$"NavigationPage/{nameof(ProjectFilterPage)}",
new NavigationParameters
{
{ "filter", _filter }
},
useModalNavigation: true).ConfigureAwait(false);
});
// set up the command used to load projects
LoadProjects = ReactiveCommand.CreateFromTask(_ =>
{
this.Log().Debug($"Loading projects on thread: {Thread.CurrentThread.ManagedThreadId}, IsBackground = {Thread.CurrentThread.IsBackground}");
AssertRunningOnBackgroundThread();
return(projectDataStore.LoadOldProjects(_oldestProject, ItemsPerPage));
});
// set up the command used to refresh projects
RefreshProjects = ReactiveCommand.CreateFromTask(_ =>
{
// TODO: Should track this with analytics?
this.Log().Debug($"Refreshing projects on thread: {Thread.CurrentThread.ManagedThreadId}, IsBackground = {Thread.CurrentThread.IsBackground}");
AssertRunningOnBackgroundThread();
return(_newestProject != null ?
projectDataStore.LoadNewProjects(_newestProject, ItemsPerPage) :
projectDataStore.LoadNewProjects(ItemsPerPage));
});
LoadProjects
.Merge(RefreshProjects)
.SubscribeSafe(projects =>
{
if (projects.Any())
{
// NOTE: This probably isn't necessary...
projects = projects.ExceptBy(Projects, p => p.ProjectId);
// get the oldest and newest projects from the new data set. Age is simply
// determined by the date the project was created
var oldProject = projects.MinBy(p => p.CreateDate).First();
var newProject = projects.MaxBy(p => p.CreateDate).First();
if (_oldestProject == null && _newestProject == null)
{
_oldestProject = oldProject;
_newestProject = newProject;
// first projects being added. Add them to the list
Projects.AddRange(projects);
}
else if (_oldestProject?.CreateDate > oldProject.CreateDate)
{
_oldestProject = oldProject;
// if the projects are older, add them to the end of the list
Projects.AddRange(projects);
}
else if (_newestProject?.CreateDate < newProject.CreateDate)
{
_newestProject = newProject;
// if the projects are newer, insert them at the beginning of the list
Projects.InsertRange(0, projects);
}
}
});
// when either of the commands are executing, update the busy state
LoadProjects.IsExecuting
.CombineLatest(RefreshProjects.IsExecuting, (isLoadExecuting, isRefreshExecuting) => isLoadExecuting || isRefreshExecuting)
.DistinctUntilChanged()
.StartWith(false)
.ToProperty(this, x => x.IsBusy, out _isBusy, scheduler: RxApp.MainThreadScheduler);
// When an exception is thrown for either command, log the error and let the user handle
// the exception
LoadProjects.ThrownExceptions
.Merge(RefreshProjects.ThrownExceptions)
.SelectMany(exception =>
{
this.Log().ErrorException("Error loading or refreshing data", exception);
return(SharedInteractions.Error.Handle(exception));
})
.Subscribe();
}
public EditProjectPageViewModel(
INavigationService navigationService,
IUserDialogs dialogService,
IAnalyticService analyticService) : base(navigationService)
{
Title = "New Project";
analyticService.TrackScreen("edit-project-page");
// store the fields in an enumerable for easy use later on in this class
_validatableFields = new IValidity[]
{
ProjectName,
//StartStatus,
Description,
SkillsRequired,
PayRate,
//PaymentType
};
AddValidationRules();
Save = ReactiveCommand.CreateFromTask(async() =>
{
if (!IsValid())
{
return;
}
analyticService.TrackTapEvent("save");
if (_project != null)
{
// if the product was being edited, map the local fields back to the project and
// save it
//_project.Name = ProjectName.Value;
_project.Description = Description.Value;
//_project.SkillsRequired = SkillsRequired.Value;
//_project.PaymentRate = decimal.Parse(PayRate.Value);
//_project.PaymentType = PaymentType.Value;
//switch (StartStatus.Value)
//{
// case ProjectStartStatus.ReadyNow:
// _project.EstimatedStartDate = DateTime.Today;
// break;
// case ProjectStartStatus.OneToTwoWeeks: _project.EstimatedStartDate =
// DateTime.Today.AddDays(7); break;
// case ProjectStartStatus.ThreeToFourWeeks: _project.EstimatedStartDate =
// DateTime.Today.AddDays(7 * 3); break;
// case ProjectStartStatus.FiveOrMoreWeeks: _project.EstimatedStartDate =
// DateTime.Today.AddDays(7 * 5); break;
// default:
// throw new InvalidOperationException("Invalid start status");
//}
// TODO: projectDataStore.Update(_project);
}
else
{
// the project was a new project. Save it
// TODO: projectDataStore.Save(_project);
}
// TODO: Return the project in the navigation parameters so we can refresh it in the UI of the calling page.
await NavigationService.GoBackAsync(useModalNavigation: true).ConfigureAwait(false);
});
Cancel = ReactiveCommand.CreateFromTask(async() =>
{
if (_validatableFields.Any(field => field.IsChanged))
{
bool keepEditing = await dialogService.ConfirmAsync(
new ConfirmConfig
{
Title = "Unsaved changes",
Message = "Are you sure you want to discard this project?",
OkText = "Keep Editing",
CancelText = "Discard"
});
if (keepEditing)
{
// the user has chosen the option to continue editing
return;
}
}
analyticService.TrackTapEvent("cancel");
// if there are no changes, or the user chooses to discard, go back to the previous screen
await NavigationService.GoBackAsync(useModalNavigation: true).ConfigureAwait(false);
});
NavigatingTo
.Take(1)
.Where(args => args.ContainsKey("project"))
.Select(args => (Project)args["project"])
.Subscribe(project =>
{
// store the project being edited
_project = project;
Title = "Edit Project";
// map the project being edited to the local fields
//ProjectName.Value = project.Name;
//StartStatus.Value = project.StartStatus;
Description.Value = project.Description;
//SkillsRequired.Value = project.SkillsRequired;
//PayRate.Value = project.PaymentRate.ToString();
//PaymentType.Value = project.PaymentType;
// accept changes for all fields
foreach (var field in _validatableFields)
{
field.AcceptChanges();
}
});
// accept changes so we can determine whether they've been changed later on
foreach (var field in _validatableFields)
{
field.AcceptChanges();
}
}
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);
}