Implemented download log files (not in service). Refactored backupservice to handle log file splitting. Improved a few interfaces and added some unit tests around them.

API/Interfaces/Services/IDirectoryService.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.IO;
 using System.Threading.Tasks;
 using API.DTOs;
 
@@ -20,7 +21,7 @@ namespace API.Interfaces.Services
         /// <param name="path"></param>
         /// <param name="searchPatternExpression"></param>
         /// <returns></returns>
-        string[] GetFiles(string path, string searchPatternExpression = "");
+        string[] GetFilesWithExtension(string path, string searchPatternExpression = "");
         /// <summary>
         /// Returns true if the path exists and is a directory. If path does not exist, this will create it. Returns false in all fail cases.
         /// </summary>
@@ -28,6 +29,21 @@ namespace API.Interfaces.Services
         /// <returns></returns>
         bool ExistOrCreate(string directoryPath);
 
+        /// <summary>
+        /// Deletes all files within the directory, then the directory itself.
+        /// </summary>
+        /// <param name="directoryPath"></param>
         void ClearAndDeleteDirectory(string directoryPath);
+        /// <summary>
+        /// Deletes all files within the directory.
+        /// </summary>
+        /// <param name="directoryPath"></param>
+        /// <returns></returns>
+        void ClearDirectory(string directoryPath);
+
+        bool CopyFilesToDirectory(IEnumerable<string> filePaths, string directoryPath);
+
+        IEnumerable<string> GetFiles(string path, string searchPatternExpression = "",
+            SearchOption searchOption = SearchOption.TopDirectoryOnly);
     }
 }