Add Search in MemberListWindow and restructure Window

WGneu/Windows/MemberListWindow.xaml.cs

@@ -25,6 +25,7 @@ namespace WGneu.Windows
     {
         private bool isEditing = false;
         private bool isCreating = false;
+        private List<string> textFilter = new();
         private readonly WgContext context = new();
 
         public MemberListWindow()
@@ -45,10 +46,39 @@ namespace WGneu.Windows
             base.OnClosing(e);
         }
 
+        private int CountMatchesInMember(Member m)
+        {
+            if (textFilter.Count == 0) return 0;
+            string[] check = new string[] { m.MgNr.ToString(), m.FamilyName.ToLower(), m.GivenName.ToLower(), m.DefaultKg.Name.ToLower() };
+            int i = 0;
+            foreach (string c in check)
+            {
+                if (textFilter.Any(f => c == f))
+                    i += 10;
+                else if (textFilter.Any(f => c.Contains(f)))
+                    i += 1;
+            }
+            return i;
+        }
+
         private void RefreshMemberList()
         {
             context.Members.Load();
-            MemberList.ItemsSource = context.Members.ToList();
+            List<Member> members = context.Members.OrderBy(m => m.FamilyName + " " + m.GivenName).ToList();
+
+            if (textFilter.Count > 0)
+            {
+                members = members
+                    .ToDictionary(m => m, m => CountMatchesInMember(m))
+                    .OrderByDescending(a => a.Value)
+                    .Where(a => a.Value > 0)
+                    .Select(a => a.Key)
+                    .ToList();
+            }
+            MemberList.ItemsSource = members;
+            if (members.Count == 1)
+                MemberList.SelectedIndex = 0;
+
             RefreshInputs();
         }
 
@@ -196,6 +226,13 @@ namespace WGneu.Windows
             LockInputs();
         }
 
+        private void SearchInput_TextChanged(object sender, RoutedEventArgs e)
+        {
+            // TODO implement STRG+F
+            textFilter = SearchInput.Text.ToLower().Split(" ").ToList().FindAll(s => s != "");
+            RefreshMemberList();
+        }
+
         private int NextMgNr()
         {
             int c = context.Members.Select(m => m.MgNr).Min();