From ea150385946688250b8f1ffb67177bd5811a525f Mon Sep 17 00:00:00 2001
From: Josh Creek <jcreek93@gmail.com>
Date: Sun, 29 Aug 2021 15:44:47 +0100
Subject: [PATCH] feat(*): Add StfpService

---
 .../Services/SftpService.cs                   | 106 ++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 YouTubeChannelDownloader/Services/SftpService.cs

diff --git a/YouTubeChannelDownloader/Services/SftpService.cs b/YouTubeChannelDownloader/Services/SftpService.cs
new file mode 100644
index 0000000..0adacb6
--- /dev/null
+++ b/YouTubeChannelDownloader/Services/SftpService.cs
@@ -0,0 +1,106 @@
+using Microsoft.Extensions.Logging;
+using Renci.SshNet;
+using Renci.SshNet.Sftp;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using YouTubeChannelDownloader.Models;
+
+namespace YouTubeChannelDownloader.Services
+{
+    public class SftpService
+    {
+        private readonly ILogger<SftpService> _logger;
+        private readonly SftpConfig _config;
+
+        public SftpService(ILogger<SftpService> logger, SftpConfig sftpConfig)
+        {
+            // TODO - actually implement the ILogger in the console application to pass into this class
+            _logger = logger;
+            _config = sftpConfig;
+        }
+
+        public IEnumerable<SftpFile> ListAllFiles(string remoteDirectory = ".")
+        {
+            using var client = new SftpClient(_config.Host, _config.Port == 0 ? 22 : _config.Port, _config.UserName, _config.Password);
+            try
+            {
+                client.Connect();
+                return client.ListDirectory(remoteDirectory);
+            }
+            catch (Exception exception)
+            {
+                _logger.LogError(exception, $"Failed in listing files under [{remoteDirectory}]");
+                return null;
+            }
+            finally
+            {
+                client.Disconnect();
+            }
+        }
+
+        public void UploadFile(string localFilePath, string remoteDirectory, string fileName)
+        {
+            using var client = new SftpClient(_config.Host, _config.Port == 0 ? 22 : _config.Port, _config.UserName, _config.Password);
+            try
+            {
+                client.Connect();
+                client.ChangeDirectory(remoteDirectory);
+
+                using (var uplfileStream = File.OpenRead(localFilePath))
+                {
+                    client.UploadFile(uplfileStream, fileName, true);
+                }
+
+                //_logger.LogInformation($"Finished uploading file [{localFilePath}] to [{remoteDirectory}]");
+            }
+            catch (Exception exception)
+            {
+                //_logger.LogError(exception, $"Failed in uploading file [{localFilePath}] to [{remoteDirectory}]");
+            }
+            finally
+            {
+                client.Disconnect();
+            }
+        }
+
+        public void DownloadFile(string remoteFilePath, string localFilePath)
+        {
+            using var client = new SftpClient(_config.Host, _config.Port == 0 ? 22 : _config.Port, _config.UserName, _config.Password);
+            try
+            {
+                client.Connect();
+                using var s = File.Create(localFilePath);
+                client.DownloadFile(remoteFilePath, s);
+                _logger.LogInformation($"Finished downloading file [{localFilePath}] from [{remoteFilePath}]");
+            }
+            catch (Exception exception)
+            {
+                _logger.LogError(exception, $"Failed in downloading file [{localFilePath}] from [{remoteFilePath}]");
+            }
+            finally
+            {
+                client.Disconnect();
+            }
+        }
+
+        public void DeleteFile(string remoteFilePath)
+        {
+            using var client = new SftpClient(_config.Host, _config.Port == 0 ? 22 : _config.Port, _config.UserName, _config.Password);
+            try
+            {
+                client.Connect();
+                client.DeleteFile(remoteFilePath);
+                _logger.LogInformation($"File [{remoteFilePath}] deleted.");
+            }
+            catch (Exception exception)
+            {
+                _logger.LogError(exception, $"Failed in deleting file [{remoteFilePath}]");
+            }
+            finally
+            {
+                client.Disconnect();
+            }
+        }
+    }
+}