Update UI

Methods/xml.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Xml.Linq;
+
+namespace TapeCatalog.Methods
+{
+    /// <summary>
+    /// Helpers to read XML files and produce a compact summary used by the UI.
+    /// </summary>
+    public static class Xml
+    {
+        public static List<TapeCatalog.FileEntry> ParseSummary(string filePath)
+        {
+            var result = new List<TapeCatalog.FileEntry>();
+            if (string.IsNullOrWhiteSpace(filePath) || !File.Exists(filePath))
+                return result;
+
+            try
+            {
+                var doc = XDocument.Load(filePath);
+                var root = doc.Root;
+                if (root == null) return result;
+
+                if (string.Equals(root.Name.LocalName, "Files", StringComparison.OrdinalIgnoreCase))
+                {
+                    foreach (var fe in root.Elements("File"))
+                    {
+                        try
+                        {
+                            var fn = fe.Element("Filename")?.Value ?? string.Empty;
+                            var fd = fe.Element("FileDir")?.Value ?? string.Empty;
+                            var st = fe.Element("Status")?.Value ?? string.Empty;
+                            result.Add(new TapeCatalog.FileEntry { Filename = fn, FileDir = fd, Status = st });
+                        }
+                        catch
+                        {
+                            // ignore malformed entries
+                        }
+                    }
+                }
+                else if (string.Equals(root.Name.LocalName, "TapeEntries", StringComparison.OrdinalIgnoreCase))
+                {
+                    foreach (var entry in root.Elements("Entry"))
+                    {
+                        try
+                        {
+                            var fn = entry.Element("Filename")?.Value ?? string.Empty;
+                            var med = entry.Element("Medium")?.Value ?? string.Empty;
+                            var mod = entry.Element("Modified")?.Value ?? string.Empty;
+                            result.Add(new TapeCatalog.FileEntry { Filename = fn, FileDir = med, Status = mod });
+                        }
+                        catch
+                        {
+                            // ignore malformed entries
+                        }
+                    }
+                }
+            }
+            catch
+            {
+                // ignore parse errors and return empty list
+            }
+
+            return result;
+        }
+
+        public static string[] GetXmlFiles(string xmlDirectory)
+        {
+            if (string.IsNullOrWhiteSpace(xmlDirectory) || !Directory.Exists(xmlDirectory))
+                return Array.Empty<string>();
+
+            try
+            {
+                return Directory.GetFiles(xmlDirectory, "*.xml", SearchOption.TopDirectoryOnly);
+            }
+            catch
+            {
+                return Array.Empty<string>();
+            }
+        }
+    }
+}