using Diligent.WebAPI.Contracts.DTOs.SelectionProcess;
using Diligent.WebAPI.Contracts.Exceptions;

namespace Diligent.WebAPI.Tests.Controllers
{
    public class SelectionProcessesControllerTests
    {
        private ISelectionProcessService _service = Substitute.For<ISelectionProcessService>();
        private readonly SelectionProcessResposneDto _selectionProcess;
        public SelectionProcessesControllerTests()
        {
            _selectionProcess = new SelectionProcessResposneDto
            {
                Id = 1,
                Name = "HR intervju"
            };
        }

        [Fact]
        public async Task FinishSelectionProcess_ShouldReturn_True_WhenProcessExists()
        {
            _service.FinishSelectionProcess(Arg.Any<SelectionProcessCreateDto>()).Returns(true);
            SelectionProcessesController controller = new(_service);

            var result = await controller.FinishSelectionProcess(new SelectionProcessCreateDto());

            (result as OkObjectResult).StatusCode.Should().Be(200);
        }

        [Fact]
        public async Task FinishSelectionProcess_ShouldThrowEntityNotFooundException_WhenProcessDoesnotExist()
        {
            _service.When(x => x.FinishSelectionProcess(Arg.Any<SelectionProcessCreateDto>())).Do(x => { throw new EntityNotFoundException(); });
            SelectionProcessesController controller = new(_service);

            await Assert.ThrowsAsync<EntityNotFoundException>(() => controller.FinishSelectionProcess(new SelectionProcessCreateDto()));
        }

        [Fact]
        public async Task FinishSelectionProcess_ShouldThrowEntityNotFooundException_WhenProcessWasInLastLevel()
        {
            _service.When(x => x.FinishSelectionProcess(Arg.Any<SelectionProcessCreateDto>())).Do(x => { throw new EntityNotFoundException(); });
            SelectionProcessesController controller = new(_service);

            await Assert.ThrowsAsync<EntityNotFoundException>(() => controller.FinishSelectionProcess(new SelectionProcessCreateDto()));
        }

        [Fact]
        public async Task UpdateStatus_ShouldReturn_200OK()
        {
            _service.StatusUpdate(Arg.Any<StatusChangeDTO>());
            SelectionProcessesController controller = new(_service);

            var result = await controller.UpdateStatus(new StatusChangeDTO());

            (result as OkObjectResult).StatusCode.Should().Be(200);
        }

        [Fact]
        public async Task UpdateStatus_ShouldThrowEntityNotFooundException_WhenProcessDoesnotExist()
        {
            _service.When(x => x.StatusUpdate(Arg.Any<StatusChangeDTO>())).Do(x => { throw new EntityNotFoundException(); });
            SelectionProcessesController controller = new(_service);

            await Assert.ThrowsAsync<EntityNotFoundException>(() => controller.UpdateStatus(new StatusChangeDTO()));
        }

        [Fact]
        public async Task UpdateStatus_ShouldThrowEntityNotFooundException_WhenUserDoesNotExist()
        {
            _service.When(x => x.StatusUpdate(Arg.Any<StatusChangeDTO>())).Do(x => { throw new EntityNotFoundException(); });
            SelectionProcessesController controller = new(_service);

            await Assert.ThrowsAsync<EntityNotFoundException>(() => controller.UpdateStatus(new StatusChangeDTO()));
        }

        [Fact]
        public async Task UpdateInterviewer_ShouldReturn_200OK()
        {
            _service.InterviewerUpdate(Arg.Any<InterviewerUpdateDTO>());
            SelectionProcessesController controller = new(_service);

            var result = await controller.UpdateInterviewer(new InterviewerUpdateDTO());

            (result as OkObjectResult).StatusCode.Should().Be(200);
        }

        [Fact]
        public async Task UpdateInterviewer_ShouldThrowEntityNotFooundException_WhenProcessDoesnotExist()
        {
            _service.When(x => x.InterviewerUpdate(Arg.Any<InterviewerUpdateDTO>())).Do(x => { throw new EntityNotFoundException(); });
            SelectionProcessesController controller = new(_service);

            await Assert.ThrowsAsync<EntityNotFoundException>(() => controller.UpdateInterviewer(new InterviewerUpdateDTO()));
        }

        [Fact]
        public async Task UpdateInterviewer_ShouldThrowEntityNotFooundException_WhenUserDoesNotExist()
        {
            _service.When(x => x.InterviewerUpdate(Arg.Any<InterviewerUpdateDTO>())).Do(x => { throw new EntityNotFoundException(); });
            SelectionProcessesController controller = new(_service);

            await Assert.ThrowsAsync<EntityNotFoundException>(() => controller.UpdateInterviewer(new InterviewerUpdateDTO()));
        }
    }
}