using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.Ioc;
using GDNXFD.Alert.Config.Services.Navigation;
using Microsoft.Practices.ServiceLocation;

namespace GDNXFD.Alert.Config.ViewModel
{
    /// <summary>
    /// This class contains static references to all the view models in the
    /// application and provides an entry point for the bindings.
    /// </summary>
    public class ViewModelLocator
    {
        /// <summary>
        /// Initializes a new instance of the ViewModelLocator class.
        /// </summary>
        private ViewModelLocator()
        {
            ServiceLocator.SetLocatorProvider(() => SimpleIoc.Default);
            SimpleIoc.Default.Reset();
            SimpleIoc.Default.Register<INavigationService, NavigationService>(true);

            SimpleIoc.Default.Register<MainViewModel>();
            SimpleIoc.Default.Register<RuleListViewModel>();
            SimpleIoc.Default.Register<RuleFormViewModel>();
            SimpleIoc.Default.Register<LoginViewModel>();
        }

        public static ViewModelLocator Instance
        {
            get { return SingletonCreator.instance; }
        }

        class SingletonCreator
        {
            internal static readonly ViewModelLocator instance = new ViewModelLocator();
        }

        public MainViewModel Main
        {
            get
            {
                return ServiceLocator.Current.GetInstance<MainViewModel>();
            }
        }

        public RuleListViewModel RuleList
        {
            get
            {
                return ServiceLocator.Current.GetInstance<RuleListViewModel>();
            }
        }

        public LoginViewModel Login
        {
            get
            {
                return ServiceLocator.Current.GetInstance<LoginViewModel>();
            }
        }

        public RuleFormViewModel RuleForm
        {
            get
            {
                var vm = ServiceLocator.Current.GetInstance<RuleFormViewModel>();
                //vm.PreInit();
                return vm;
            }
        }

        public INavigationService NavService
        {
            get
            {
                return ServiceLocator.Current.GetInstance<INavigationService>();
            }
        }

        public static void Cleanup()
        {
            // TODO Clear the ViewModels
        }
    }
}