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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Tango.Core.DI;
using Tango.Core.Threading;
using Tango.Integration.ExternalBridge;
using Tango.PPC.Common.Application;
using Tango.PPC.Common.ExternalBridge;
using Tango.PPC.Common.RemoteActions;
using Tango.PPC.Common.Threading;
using Tango.PPC.Shared.RemoteActions;

namespace Tango.PPC.UI.RemoteActions
{
    [TangoCreateWhenRegistered]
    public class DefaultRemoteActionsService : IRemoteActionsService, IExternalBridgeRequestHandler
    {
        [TangoInject]
        private IDispatcherProvider DispatcherProvider { get; set; }

        [TangoInject]
        private IPPCApplicationManager ApplicationManager { get; set; }

        public DefaultRemoteActionsService(IPPCExternalBridgeService externalBridge)
        {
            externalBridge.RegisterRequestHandler(this);
        }

        public void OnReceiverDisconnected(ExternalBridgeReceiver receiver)
        {
            //Do nothing.
        }

        [ExternalBridgeRequestHandlerMethod(typeof(SimulateApplicationExceptionRequest), RequestHandlerLoggingMode.LogRequestName)]
        public async Task OnSimulateApplicationExceptionRequest(SimulateApplicationExceptionRequest request, String token, ExternalBridgeReceiver receiver)
        {
            await receiver.SendGenericResponse(new SimulateApplicationExceptionResponse(), token);

            Thread.Sleep(500);

            DispatcherProvider.Invoke(() => 
            {
                if (request.CrashApplication)
                {
                    App.ExceptionTrapper.Disable();
                    throw new OutOfMemoryException("This is a simulated exception to cause the application to crash.");
                }
                else
                {
                    throw new ApplicationException("This is a simulated exception to cause an unhandled application error.");
                }
            });
        }

        [ExternalBridgeRequestHandlerMethod(typeof(RestartApplicationRequest), RequestHandlerLoggingMode.LogRequestName)]
        public async Task OnRestartApplicationRequest(RestartApplicationRequest request, String token, ExternalBridgeReceiver receiver)
        {
            await receiver.SendGenericResponse(new RestartApplicationResponse(), token);

            DispatcherProvider.Invoke(() =>
            {
                ApplicationManager.Restart();
            });
        }
    }
}