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Helpers/HelperRenameToOldMoveDeleteOld.cs

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+using Serilog;
+
+namespace File_Folder_Helper.Helpers;
+
+internal static class HelperRenameToOldMoveDeleteOldMerge
+{
+
+    internal static void RenameToOldMoveDeleteOld(ILogger log, string argsZero)
+    {
+        string checkDirectory = argsZero[0..^1];
+        if (!Directory.Exists(checkDirectory))
+            log.Information(string.Concat("<", checkDirectory, "> doesn't exist!"));
+        else
+        {
+            string renameFile;
+            string destinationFile;
+            List<string> deleteFiles = new();
+            string[] moveFiles = Directory.GetFiles(argsZero, "*", SearchOption.TopDirectoryOnly);
+            log.Information(string.Concat("<", moveFiles.Length, "> to move"));
+            foreach (string moveFile in moveFiles)
+            {
+                destinationFile = string.Concat(checkDirectory, moveFile[argsZero.Length..]);
+                if (!File.Exists(destinationFile))
+                    File.Move(moveFile, destinationFile);
+                else
+                {
+                    renameFile = Path.ChangeExtension(destinationFile, string.Concat(Path.GetExtension(destinationFile), ".old"));
+                    File.Move(destinationFile, renameFile);
+                    File.Move(moveFile, destinationFile);
+                    deleteFiles.Add(renameFile);
+                }
+            }
+            log.Information(string.Concat("<", deleteFiles.Count, "> to delete"));
+            foreach (string deleteFile in deleteFiles)
+            {
+                for (short i = 0; i < short.MaxValue; i++)
+                {
+                    try
+                    {
+                        File.Delete(deleteFile);
+                        break;
+                    }
+                    catch (Exception) { }
+                    Thread.Sleep(500);
+                }
+            }
+        }
+    }
+
+}