using DTS.DASLib.Service.StateMachine;
using NSubstitute;
using NUnit.Framework;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StateMachine.Tests
{
    [TestFixture]
    class HardwareDiscoveryStartShould
    {
        [Test]
        public void State_ShouldBeHardwareDiscoveryStart()
        {
            //Arrange
            var sut = new HardwareDiscoveryStart();

            //Act & Assert
            Assert.That(State.HardwareDiscoveryStart, Is.EqualTo(sut.State));
        }

        [Test]
        public void StateSelector_Should_ReturnConfigure()
        {
            //Arrange
            var sut = new HardwareDiscoveryStart();
            var status = sut.Status;
            status.HardwareDiscoveryParams.ProceedWhenDone = true;

            status.HardwareDiscoveryStatusInfo.AllDASFound = true;
            status.HardwareDiscoveryParams.RequireAllDASFound = true;

            //Act
            var dasState = sut.StateSelector();

            //Assert
            Assert.That(dasState.State, Is.EqualTo(State.Configure));

            //Arrange
            status.HardwareDiscoveryParams.ProceedWhenDone = true;

            status.HardwareDiscoveryStatusInfo.AllDASFound = true;
            status.HardwareDiscoveryParams.RequireAllDASFound = false;

            //Act
            dasState = sut.StateSelector();

            //Assert
            Assert.That(dasState.State, Is.EqualTo(State.Configure));

            //Arrange
            status.HardwareDiscoveryParams.ProceedWhenDone = true;

            status.HardwareDiscoveryStatusInfo.AllDASFound = false;
            status.HardwareDiscoveryParams.RequireAllDASFound = false;

            //Act
            dasState = sut.StateSelector();

            //Assert
            Assert.That(dasState.State, Is.EqualTo(State.Configure));
        }

        [Test]
        public void StateSelector_Should_ReturnDownload()
        {
            //Arrange
            var sut = new HardwareDiscoveryStart();
            var status = sut.Status;
            status.HardwareDiscoveryParams.ProceedWhenDone = true;

            status.HardwareDiscoveryStatusInfo.AllDASFound = true;
            status.HardwareDiscoveryParams.RequireAllDASFound = true;

            status.HardwareDiscoveryParams.GoToDownload = true;

            //Act
            var dasState = sut.StateSelector();
            //Assert
            Assert.That(dasState.State, Is.EqualTo(State.Download));
        }

        [Test]
        public void StateSelector_Should_ReturnArm()
        {
            //Arrange
            var sut = new HardwareDiscoveryStart();
            var status = sut.Status;

            status.HardwareDiscoveryParams.ProceedWhenDone = true;
            //Cannot Configure
            status.HardwareDiscoveryStatusInfo.AllDASFound = false;
            status.HardwareDiscoveryParams.RequireAllDASFound = true;

            //Cannot Download 
            status.HardwareDiscoveryParams.GoToDownload = false;

            //Can Arm
            status.HardwareDiscoveryStatusInfo.SomeUnitsInArmState = true;

            //Act
            var dasState = sut.StateSelector();
            // Assert
            Assert.That(dasState.State, Is.EqualTo(State.Arm));
        }

        [Test]
        public void StateSelector_Should_ReturnHardwareDiscovery()
        {
            //Arrange
            var sut = new HardwareDiscoveryStart();
            var status = sut.Status;

            status.HardwareDiscoveryParams.ProceedWhenDone = true;
            //Cannot Configure
            status.HardwareDiscoveryStatusInfo.AllDASFound = false;
            status.HardwareDiscoveryParams.RequireAllDASFound = true;

            //Cannot Download 
            status.HardwareDiscoveryParams.GoToDownload = false;

            //Can Arm
            status.HardwareDiscoveryStatusInfo.SomeUnitsInArmState = false;

            //Act
            var dasState = sut.StateSelector();
            // Assert
            Assert.That(dasState.State, Is.EqualTo(State.HardwareDiscovery));
        }
    }
}