using System;
using System.Threading.Tasks;
using LCU.API.Internal.Operations.IncentiveApiLib.Repositories;
using LCU.API.Internal.Operations.IncentiveApi.Services;
using LCU.Library.Internal.IncentiveApiModels.Entities;
using LCU.Library.Internal.IncentiveApiModels.Enums;
using Moq;
using NUnit.Framework;

namespace Application.UnitTests.Services
{
    public class ProcessorHistoryServiceTest
    {
        private ProcessorHistoryService _processorHistoryService;
        private Mock<IProcessorHistoryRepository> _mockRepository;

        public ProcessorHistoryServiceTest()
        {
            _mockRepository = new Mock<IProcessorHistoryRepository>();
            _processorHistoryService = new ProcessorHistoryService(_mockRepository.Object, new Mock<IUnitOfWork>().Object);
        }

        [Test]
        public async Task GetProcessorHistory_OK()
        {
            _mockRepository.Setup(repo => repo.GetProcessorRunHistory(It.IsAny<Process>())).ReturnsAsync(new ProcessorHistoryRecord()
            {
                Process = Process.ImportCheckingAccountSalesFromDna,
                LastProcessedRecordId = 5
            }).Verifiable();

            var res = await _processorHistoryService.GetProcessorHistory(Process.ImportCheckingAccountSalesFromDna);
            Assert.AreEqual(Process.ImportCheckingAccountSalesFromDna, res.Process);
            Assert.AreEqual(5, res.LastProcessedRecordId);

            _mockRepository.Verify( x => x.GetProcessorRunHistory(It.Is<Process>(x => x == Process.ImportCheckingAccountSalesFromDna)));
        }

        [Test]
        public void GetProcessorHistory_Exception()
        {
            _mockRepository.Setup(repo => repo.GetProcessorRunHistory(It.IsAny<Process>()))
                .ThrowsAsync(new Exception("oops"));
            Assert.ThrowsAsync<Exception>( async () => await _processorHistoryService.GetProcessorHistory(Process.ImportCheckingAccountSalesFromDna));
        }

        [Test]
        public void SaveProcessorHistory_Exception()
        {
            _mockRepository.Setup(repo => repo.SaveProcessorRunHistory(It.IsAny<ProcessorHistoryRecord>()))
                .ThrowsAsync(new Exception("Oops"));

            Assert.ThrowsAsync<Exception>( async () =>  await _processorHistoryService.SaveProcessorHistory(new ProcessorHistoryRecord()
            {
                LastProcessedRecordId = 100
            }));
        }

        [Test]
        public async Task SaveProcessorHistory_OK()
        {
            _mockRepository.Setup(repo => repo.SaveProcessorRunHistory(It.IsAny<ProcessorHistoryRecord>())).ReturnsAsync(Process.ImportCheckingAccountSalesFromDna).Verifiable();

            var res = await _processorHistoryService.SaveProcessorHistory(new ProcessorHistoryRecord()
            {
                LastProcessedRecordId = 100
            });
            Assert.AreEqual(Process.ImportCheckingAccountSalesFromDna, res);
        }
    }
}