using System.ComponentModel;
using Microsoft.Practices.Prism.Events;
using Microsoft.Practices.Prism.Interactivity.InteractionRequest;
using Microsoft.Practices.Prism.Regions;
using Microsoft.Practices.Unity;
using Microsoft.Practices.ServiceLocation;
using DTS.Common.Events;
using DTS.Common.Interface;
using DTS.Common.Base;
using System;

namespace DTS.Common.CPU
{
    public class CPUEngine : ICPUEngine
    {

        private IEventAggregator _eventAggregator { get; set; }
        private new IRegionManager _regionManager;
        private IUnityContainer _unityContainer { get; set; }
        public IServiceLocator _serviceLocator { get; private set; }

        public InteractionRequest<Notification> NotificationRequest { get; private set; }
        public new InteractionRequest<Confirmation> ConfirmationRequest { get; private set; }

        public CPUEngine()
        {
            _unityContainer= ServiceLocator.Current.GetInstance<IUnityContainer>();
            _eventAggregator = _unityContainer.Resolve<IEventAggregator>();
            _serviceLocator = _unityContainer.Resolve<IServiceLocator>();

            NotificationRequest = new InteractionRequest<Notification>();
            ConfirmationRequest = new InteractionRequest<Confirmation>();

            _eventAggregator.GetEvent<RaiseNotification>().Subscribe(OnRaiseNotification);
            _eventAggregator.GetEvent<ShowStatus>().Subscribe(OnStatusChange);
        }

        /// <summary>
        /// Private Event handler for Status change event.
        /// </summary>
        private void OnStatusChange(StatusInfo content)
        {
            //IsBusy = content.IsBusy;
            //IsBusyMessage = content.Text;
            //NotificationRequest.Raise(new Notification { Content = content, Title = "DataPRO" });
        }

        /// <summary>
        /// Private Event handler for RaiseNotification event.
        /// </summary>
        private void OnRaiseNotification(NotificationContentEventArgs eventArgsWithTitle)
        {
            // Notification object expects a NotificationContentEventArgsWithoutTitle object and a Title string.
            var eventArgsWithoutTitle = new NotificationContentEventArgs(eventArgsWithTitle.Message, eventArgsWithTitle.MessageDetails, eventArgsWithTitle.Image);

            NotificationRequest.Raise(new Notification
            {
                Content = eventArgsWithoutTitle,
                Title = eventArgsWithTitle.Title
            });
        }


        public new event PropertyChangedEventHandler PropertyChanged;

        public void OnPropertyChanged(string propertyName)
        {
            var eventHandler = PropertyChanged;
            if (eventHandler != null) { eventHandler(this, new PropertyChangedEventArgs(propertyName)); }
        }
    }
}