using Moq;
using Xunit;
using Newtonsoft.Json;
using LCU.Api.Internal.FTP.Configuration;
using LCU.Api.Internal.FTP.Services;
using LCU.Api.Internal.FTP.Services.FtpOpertionServices;
using LCU.Api.Internal.FTPLib.Models;
using LCU.Api.Internal.FTPLib.Models.Enums;
namespace LCU.Api.Internal.FTPTests.Services;

public class FtpServiceTest
{
    private readonly FtpService _ftpService;
    private Mock<IQueueFtpService> _mockQueueFtpService;
    private Mock<IWinScpSftpUploadFileService> _mockWinScpUploadFileService;
    private Mock<IWinScpSftpDownloadFilesService> _mockWinScpDownloadFilesService;
    private Mock<ISshFtpService> _mockSshFtpService;

    public FtpServiceTest()
    {
        var ftpApiConfiguration = new FtpApiConfiguration()
        {
            AttemptsLimit = 2
        };
        _mockQueueFtpService = new Mock<IQueueFtpService>();
        _mockWinScpUploadFileService = new Mock<IWinScpSftpUploadFileService>();
        _mockWinScpDownloadFilesService = new Mock<IWinScpSftpDownloadFilesService>();
        _mockSshFtpService = new Mock<ISshFtpService>();

        _ftpService = new FtpService(_mockQueueFtpService.Object,
                                       _mockWinScpUploadFileService.Object,
                                       _mockWinScpDownloadFilesService.Object,
                                       _mockSshFtpService.Object,
                                       ftpApiConfiguration);
    }

    [Fact]
    public void Basic_Construct_Test()
    {
        Assert.NotNull(_ftpService);
    }

    [Fact]
    public void PerformFtpOperation_WinScpUploadFileService_Ran_Returned_SuccessResponse()
    {
        var ftpRequestRequestResponse = new FtpRequestResponse()
        {
            IsSuccessful = true
        };
        _mockWinScpUploadFileService.Setup(x => x.ExecuteAction(It.IsAny<QueueRequest>())).Returns(ftpRequestRequestResponse);

        var request = new SftpUploadFileRequest()
        {
            SessionInformation = new SessionInformation()
            {
                Protocol = 0,
                HostName = "TestHostName",
                PortNumber = 22,
                UserName = "TestUserName",
                Password = "TestPassword",
                SshHostKeyFingerprint = "TestSshHostKeyFingerprint"
            },
            LocalFileName = "TestLocalFileName",
            LocalFilePath = "\\TestLocalFilePath\\",
            RemoteFilePath = "\\TestRemoteFilePath\\"
        };

        var queueRequest = new QueueRequest()
        {
            Request = JsonConvert.SerializeObject(request),
            FtpType = FtpType.WinScpSftpUpload
        };

        var result = _ftpService.PerformFtpOperation(queueRequest);

        Assert.True(result.IsSuccessful);
        _mockWinScpUploadFileService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Once);
        _mockWinScpDownloadFilesService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
        _mockSshFtpService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
    }

    [Fact]
    public void PerformFtpOperation_WinScpDownloadFilesService_Ran_Returned_SuccessResponse()
    {
        var ftpRequestRequestResponse = new FtpRequestResponse()
        {
            IsSuccessful = true
        };
        _mockWinScpDownloadFilesService.Setup(x => x.ExecuteAction(It.IsAny<QueueRequest>())).Returns(ftpRequestRequestResponse);

        var request = new SftpDownloadFileRequest()
        {
            SessionInformation = new SessionInformation()
            {
                Protocol = 0,
                HostName = "TestHostName",
                PortNumber = 22,
                UserName = "TestUserName",
                Password = "TestPassword",
                SshHostKeyFingerprint = "TestSshHostKeyFingerprint"
            },
            LocalFilePath = "\\TestLocalFilePath\\",
            RemoteFilePath = "\\TestRemoteFilePath\\",
            RemoteFileName = "TestRemoteFileName"
        };

        var queueRequest = new QueueRequest()
        {
            Request = JsonConvert.SerializeObject(request),
            FtpType = FtpType.WinScpSftpDownload
        };

        var result = _ftpService.PerformFtpOperation(queueRequest);

        Assert.True(result.IsSuccessful);
        _mockWinScpUploadFileService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
        _mockWinScpDownloadFilesService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Once);
        _mockSshFtpService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
    }

    [Fact]
    public void PerformFtpOperation_SshFtpService_Ran_Returned_SuccessResponse()
    {
        var ftpRequestRequestResponse = new FtpRequestResponse()
        {
            IsSuccessful = true
        };
        _mockSshFtpService.Setup(x => x.ExecuteAction(It.IsAny<QueueRequest>())).Returns(ftpRequestRequestResponse);

        var request = new SshFtpRequest()
        {
            Protocol = 0,
            HostName = "TestHostName",
            PortNumber = 22,
            UserName = "TestUserName",
            Password = "TestPassword",
            LocalFileData = new byte[1],
            RemoteFilePath = "\\TestRemoteFilePath\\"
        };

        var queueRequest = new QueueRequest()
        {
            Request = JsonConvert.SerializeObject(request),
            FtpType = FtpType.SshFtp
        };

        var result = _ftpService.PerformFtpOperation(queueRequest);

        Assert.True(result.IsSuccessful);
        _mockWinScpUploadFileService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
        _mockWinScpDownloadFilesService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
        _mockSshFtpService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Once);
    }

    [Fact]
    public void PerformFtpOperation_Exception_NoType_Returned_FailResponse()
    {
        var request = new SshFtpRequest()
        {
            Protocol = 0,
            HostName = "TestHostName",
            PortNumber = 22,
            UserName = "TestUserName",
            Password = "TestPassword",
            LocalFileData = new byte[1],
            RemoteFilePath = "\\TestRemoteFilePath\\"
        };

        var queueRequest = new QueueRequest()
        {
            Request = JsonConvert.SerializeObject(request)
        };

        var result = _ftpService.PerformFtpOperation(queueRequest);

        Assert.False(result.IsSuccessful);
        _mockWinScpUploadFileService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
        _mockWinScpDownloadFilesService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
        _mockSshFtpService.Verify(x => x.ExecuteAction(It.IsAny<QueueRequest>()), Times.Never);
    }

    [Fact]
    public void ShouldPerformFtpRequestAgain_AttempsLessThenLimit_True()
    {
        var request = new QueueRequest()
        {
            Attempts = 0
        };

        var ftpRequestRequestResponse = new FtpRequestResponse()
        {
            IsSuccessful = false
        };

        var result = _ftpService.ShouldPerformFtpRequestAgain(request, ftpRequestRequestResponse);

        Assert.True(result);
    }

    [Fact]
    public void ShouldPerformFtpRequestAgain_AttempsGreaterThenLimit_False()
    {
        var request = new QueueRequest()
        {
            Attempts = 3
        };

        var ftpRequestRequestResponse = new FtpRequestResponse()
        {
            IsSuccessful = false
        };

        var result = _ftpService.ShouldPerformFtpRequestAgain(request, ftpRequestRequestResponse);

        Assert.False(result);
    }


    [Fact]
    public void ShouldPerformFtpRequestAgain_SuccessfullyFtpRequest_False()
    {
        var request = new QueueRequest()
        {
            Attempts = 1
        };

        var ftpRequestRequestResponse = new FtpRequestResponse()
        {
            IsSuccessful = true
        };

        var result = _ftpService.ShouldPerformFtpRequestAgain(request, ftpRequestRequestResponse);

        Assert.False(result);
    }
}