using System;
using System.IO;
using Renci.SshNet;
using Serilog;
using Newtonsoft.Json;
using LCU.Api.Internal.FTPLib.Models;
namespace LCU.Api.Internal.FTP.Services.FtpOpertionServices;

public class SshFtpService : ISshFtpService
{
    public FtpRequestResponse ExecuteAction(QueueRequest queueRequest)
    {
        var ftpRequestResponse = new FtpRequestResponse();
        try
        {
            ArgumentNullException.ThrowIfNull(queueRequest);
            var request = JsonConvert.DeserializeObject<SshFtpRequest>(queueRequest.Request);
            ArgumentNullException.ThrowIfNull(request);
            ftpRequestResponse.ReturnResponse = request;
            TransferFiles(request);
        }
        catch (Exception exception)
        {
            ftpRequestResponse.IsSuccessful = false;
            ftpRequestResponse.MessageStack.Add(exception.Message);
        }
        return ftpRequestResponse;
    }

    public void TransferFiles(SshFtpRequest request)
    {
        using var client = new SftpClient(request.HostName,
            request.PortNumber == 0 ? 22 : request.PortNumber,
            request.UserName, request.Password);

        try
        {
            client.Connect();
            using var stream = new MemoryStream(request.LocalFileData);
            client.UploadFile(stream, request.RemoteFilePath);
            Log.Information(
                $"Uploaded [{request.RemoteFilePath}]");
        }
        catch (Exception exception)
        {
            throw new Exception($"Failed uploading [{request.RemoteFilePath}]" +
                                $"ExceptionMessage: {exception.Message}");
        }
        finally
        {
            client.Disconnect();
        }
    }
}