using Microsoft.Extensions.Caching.Memory;
using LCU.API.Internal.RepoApi.Old_Repo_Services;
using LCU.API.Internal.RepoApi.Repos.Repositories;
using LCU.API.Internal.RepoApi.Repos.Models.Settings;
using LCU.API.Internal.RepoApi.Configurations;
using LCU.API.Internal.RepoApi.Old_Repo_DataAccess;
using LCU.API.Internal.RepoApi.Repos.Repositories.Settings;

namespace LCU.API.Internal.RepoApiTests.ServiceTests
{
    public class SettingsServiceTests
    {
        private readonly Mock<IAccountTypeRepository> _mockAccountTypeRepository;
        private readonly Mock<IAllowedStatusChangeRepository> _mockAllowedStatusChangeRepository;
        private readonly Mock<IBodyStyleRepository> _mockBodyStyleRepository;
        private readonly Mock<ICleaningLevelRepository> _mockCleaningLevelRepository;
        private readonly Mock<ICollateralTypeRepository> _mockCollateralTypeRepository;
        private readonly Mock<ICollateralTypeToVehicleTypeRepository> _mockCollateralTypeToVehicleTypeRepository;
        private readonly Mock<IHoldStatusRepository> _mockHoldStatusRepository;
        private readonly Mock<ILoanCategoryRepository> _mockLoanCategoryRepository;
        private readonly Mock<ILocationTypeRepository> _mockLocationTypeRepository;
        private readonly Mock<IVehicleTypeRepository> _mockVehicleTypeRepository;
        private readonly Mock<IExternalUserRepository> _mockExternalUserRepository;
        private readonly Mock<IRepoCompanyRepository> _mockRepoCompanyRepository;
        private readonly Mock<IUnitOfWork> _mockUnitOfWork;
        private readonly Mock<IMemoryCache> _mockMemoryCache;
        private readonly Mock<ICollectionsDao> _mockCollectionsDao;
        private readonly ApiConfiguration _apiConfiguration;
        private readonly SettingsService _settingsService;

        public SettingsServiceTests()
        {
            _mockAccountTypeRepository = new Mock<IAccountTypeRepository>();
            _mockAllowedStatusChangeRepository = new Mock<IAllowedStatusChangeRepository>();
            _mockBodyStyleRepository = new Mock<IBodyStyleRepository>();
            _mockCleaningLevelRepository = new Mock<ICleaningLevelRepository>();
            _mockCollateralTypeRepository = new Mock<ICollateralTypeRepository>();
            _mockCollateralTypeToVehicleTypeRepository = new Mock<ICollateralTypeToVehicleTypeRepository>();
            _mockHoldStatusRepository = new Mock<IHoldStatusRepository>();
            _mockLoanCategoryRepository = new Mock<ILoanCategoryRepository>();
            _mockLocationTypeRepository = new Mock<ILocationTypeRepository>();
            _mockVehicleTypeRepository = new Mock<IVehicleTypeRepository>();
            _mockExternalUserRepository = new Mock<IExternalUserRepository>();
            _mockRepoCompanyRepository = new Mock<IRepoCompanyRepository>();
            _mockUnitOfWork = new Mock<IUnitOfWork>();
            _mockMemoryCache = new Mock<IMemoryCache>();
            _mockCollectionsDao = new Mock<ICollectionsDao>();
            _apiConfiguration = new ApiConfiguration
            {
                SettingsCacheExpirationSeconds = 60,
                TransactionTypeCodes = new List<string> { "Code1", "Code2" },
                TransactionTypeCodeQueryPrefix = "Prefix",
                TransactionHistoryParameterDateFormat = "yyyy-MM-dd",
                TransactionHistoryStartDateOffset = 30
            };

            _settingsService = new SettingsService(
                _mockAccountTypeRepository.Object,
                _mockAllowedStatusChangeRepository.Object,
                _mockBodyStyleRepository.Object,
                _mockCleaningLevelRepository.Object,
                _mockCollateralTypeRepository.Object,
                _mockCollateralTypeToVehicleTypeRepository.Object,
                _mockHoldStatusRepository.Object,
                _mockLoanCategoryRepository.Object,
                _mockLocationTypeRepository.Object,
                _mockVehicleTypeRepository.Object,
                _mockExternalUserRepository.Object,
                _mockRepoCompanyRepository.Object,
                _mockUnitOfWork.Object,
                _mockMemoryCache.Object,
                _mockCollectionsDao.Object,
                _apiConfiguration
            );
        }

        [Fact]
        public async Task GetCachedRepoSettingsAsync_ShouldReturnSettings_WhenCacheIsEmpty()
        {
            // Arrange
            var cacheEntryMock = new Mock<ICacheEntry>();
            _mockMemoryCache
                .Setup(mc => mc.CreateEntry(It.IsAny<object>()))
                .Returns(cacheEntryMock.Object);

            _mockAccountTypeRepository.Setup(repo => repo.ListAllAsync())
                .ReturnsAsync(new List<AccountType> { new AccountType { ID = 1, AccountTypeCode = "AT1" } });

            // Act
            var result = await _settingsService.GetCachedRepoSettingsAsync();

            // Assert
            Assert.NotNull(result);
            Assert.NotEmpty(result.AccountTypes);
        }

        [Fact]
        public async Task SaveAsync_ShouldSaveAccountType()
        {
            // Arrange
            var accountType = new AccountType { ID = 1, AccountTypeCode = "AT1" };

            // Act
            var result = await _settingsService.SaveAsync(accountType);

            // Assert
            _mockAccountTypeRepository.Verify(repo => repo.AddAsync(accountType), Times.Once);
            _mockUnitOfWork.Verify(uow => uow.CompleteAsync(), Times.Once);
            Assert.Equal(accountType, result);
        }

        [Fact]
        public async Task SaveAsync_ShouldThrowException_WhenRepositoryFails()
        {
            // Arrange
            var accountType = new AccountType { ID = 1, AccountTypeCode = "AT1" };
            _mockAccountTypeRepository.Setup(repo => repo.AddAsync(accountType))
                .ThrowsAsync(new Exception("Repository failure"));

            // Act & Assert
            await Assert.ThrowsAsync<RepoApi.Old_Repo_Exceptions.ServerErrorException>(() => _settingsService.SaveAsync(accountType));
        }

        [Fact]
        public async Task UpdateAsync_ShouldUpdateAccountType()
        {
            // Arrange
            var accountType = new AccountType { ID = 1, AccountTypeCode = "AT1", Description = "Updated" };
            _mockAccountTypeRepository.Setup(repo => repo.FindByIdAsync(accountType.ID))
                .ReturnsAsync(new AccountType { ID = 1, AccountTypeCode = "AT1" });

            // Act
            var result = await _settingsService.UpdateAsync(accountType);

            // Assert
            _mockAccountTypeRepository.Verify(repo => repo.Update(It.IsAny<AccountType>()), Times.Once);
            _mockUnitOfWork.Verify(uow => uow.CompleteAsync(), Times.Once);
            Assert.Equal(accountType.Description, result.Description);
        }

        [Fact]
        public async Task UpdateAsync_ShouldThrowNotFoundException_WhenAccountTypeDoesNotExist()
        {
            // Arrange
            var accountType = new AccountType { ID = 1, AccountTypeCode = "AT1" };
            _mockAccountTypeRepository.Setup(repo => repo.FindByIdAsync(accountType.ID))
                .ReturnsAsync((AccountType)null);

            // Act & Assert
            await Assert.ThrowsAsync<RepoApi.Old_Repo_Exceptions.NotFoundException> (() => _settingsService.UpdateAsync(accountType));
        }
    }
}