//
// App.xaml.cpp
// Implementation of the App class.
//

#include "pch.h"
#include "MainPage.xaml.h"

using namespace UwpApp1;

using namespace Platform;
using namespace Windows::ApplicationModel;
using namespace Windows::ApplicationModel::Activation;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Controls::Primitives;
using namespace Windows::UI::Xaml::Data;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Interop;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::UI::Xaml::Navigation;

/// <summary>
/// Initializes the singleton application object.  This is the first line of authored code
/// executed, and as such is the logical equivalent of main() or WinMain().
/// </summary>
App::App() {
	InitializeComponent();
	Suspending += ref new SuspendingEventHandler(this, &App::OnSuspending);
}

void App::OnActivated(Windows::ApplicationModel::Activation::IActivatedEventArgs^ args) {
	if(args->Kind == ActivationKind::Protocol) {
		auto paeArgs= dynamic_cast<ProtocolActivatedEventArgs^>(args);
		auto activationUri= paeArgs->Uri->RawUri;
		auto rootFrame= dynamic_cast<Frame^>(Window::Current->Content);
		rootFrame->Navigate(TypeName(MainPage::typeid));
		auto mainPage= dynamic_cast<MainPage^>(rootFrame->Content);
		mainPage->OnActivated(activationUri);
	}
	Window::Current->Activate();
}

/// <summary>
/// Invoked when the application is launched normally by the end user.  Other entry points
/// will be used such as when the application is launched to open a specific file.
/// </summary>
/// <param name="e">Details about the launch request and process.</param>
void App::OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ e) {
	auto rootFrame = dynamic_cast<Frame^>(Window::Current->Content);

	// Do not repeat app initialization when the Window already has content,
	// just ensure that the window is active
	if(rootFrame == nullptr) {
		// Create a Frame to act as the navigation context and associate it with
		// a SuspensionManager key
		rootFrame = ref new Frame();

		rootFrame->NavigationFailed += ref new Windows::UI::Xaml::Navigation::NavigationFailedEventHandler(this, &App::OnNavigationFailed);

		if(e->PreviousExecutionState == ApplicationExecutionState::Terminated) {
			// TODO: Restore the saved session state only when appropriate, scheduling the
			// final launch steps after the restore is complete

		}

		if(e->PrelaunchActivated == false) {
			if(rootFrame->Content == nullptr) {
				// When the navigation stack isn't restored navigate to the first page,
				// configuring the new page by passing required information as a navigation
				// parameter
				rootFrame->Navigate(TypeName(MainPage::typeid), e->Arguments);
			}
			// Place the frame in the current Window
			Window::Current->Content = rootFrame;
			// Ensure the current window is active
			Window::Current->Activate();
		}
	} else {
		if(e->PrelaunchActivated == false) {
			if(rootFrame->Content == nullptr) {
				// When the navigation stack isn't restored navigate to the first page,
				// configuring the new page by passing required information as a navigation
				// parameter
				rootFrame->Navigate(TypeName(MainPage::typeid), e->Arguments);
			}
			// Ensure the current window is active
			Window::Current->Activate();
		}
	}
}

/// <summary>
/// Invoked when application execution is being suspended.  Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
void App::OnSuspending(Object^ sender, SuspendingEventArgs^ e) {
	(void)sender;  // Unused parameter
	(void)e;   // Unused parameter

	//TODO: Save application state and stop any background activity
}

/// <summary>
/// Invoked when Navigation to a certain page fails
/// </summary>
/// <param name="sender">The Frame which failed navigation</param>
/// <param name="e">Details about the navigation failure</param>
void App::OnNavigationFailed(Platform::Object ^sender, Windows::UI::Xaml::Navigation::NavigationFailedEventArgs ^e) {
	throw ref new FailureException("Failed to load Page " + e->SourcePageType.Name);
}
