Preparation for Switching to a New Database Version (#1521)

* preparing to switch to a new database version

* add PreAuthorize

---------

Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>

src/main/java/stirling/software/SPDF/utils/FileInfo.java

@@ -0,0 +1,50 @@
+package stirling.software.SPDF.utils;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@AllArgsConstructor
+@Data
+public class FileInfo {
+    private String fileName;
+    private String filePath;
+    private LocalDateTime modificationDate;
+    private long fileSize;
+    private LocalDateTime creationDate;
+
+    private static final DateTimeFormatter DATE_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+    // Converts the file path string to a Path object.
+    public Path getFilePathAsPath() {
+        return Paths.get(filePath);
+    }
+
+    // Formats the file size into a human-readable string.
+    public String getFormattedFileSize() {
+        if (fileSize >= 1024 * 1024 * 1024) {
+            return String.format("%.2f GB", fileSize / (1024.0 * 1024 * 1024));
+        } else if (fileSize >= 1024 * 1024) {
+            return String.format("%.2f MB", fileSize / (1024.0 * 1024));
+        } else if (fileSize >= 1024) {
+            return String.format("%.2f KB", fileSize / 1024.0);
+        } else {
+            return String.format("%d Bytes", fileSize);
+        }
+    }
+
+    // Formats the modification date to a string.
+    public String getFormattedModificationDate() {
+        return modificationDate.format(DATE_FORMATTER);
+    }
+
+    // Formats the creation date to a string.
+    public String getFormattedCreationDate() {
+        return creationDate.format(DATE_FORMATTER);
+    }
+}