using System;
using System.Threading;
using Caliburn.Metadata;

namespace Tests.Caliburn
{
    [Presenter(Rescue = "PresenterRescue")]
    [TestMetadataProvider]
    public class TestPresenter
    {
        public bool ShouldThrowException = false;

        public bool TestActionCalled = false;
        public bool PresenterRescueCalled = false;
        public bool ActionRescueCalled = false;
        public bool ActionCallbackCalled = false;

        public ManualResetEvent WaitHandle = new ManualResetEvent(false);

        [AsyncAction(Rescue = "ActionRescue", Callback = "ActionCallback")]
        [TestMetadataProvider]
        public int TestAction(double input)
        {
            TestActionCalled = true;

            if(ShouldThrowException)
                throw new Exception();

            return (int)(input + 1);
        }

        public void PresenterRescue(Exception e)
        {
            PresenterRescueCalled = true;
            WaitHandle.Set();
        }

        public void ActionRescue(Exception e)
        {
            ActionRescueCalled = true;
            WaitHandle.Set();
        }

        public void ActionCallback()
        {
            ActionCallbackCalled = true;
            WaitHandle.Set();
        }
    }
}