More project base

src/AppCommon/FileTime.App.Core/Services/ItemNameConverterService.cs

@@ -0,0 +1,56 @@
+using FileTime.App.Core.Models;
+
+namespace FileTime.App.Core.Services
+{
+    public class ItemNameConverterService : IItemNameConverterService
+    {
+        public List<ItemNamePart> GetDisplayName(string name, string? searchText)
+        {
+            var nameParts = new List<ItemNamePart>();
+            searchText = searchText?.ToLower();
+
+            if (!string.IsNullOrEmpty(searchText))
+            {
+                var nameLeft = name;
+
+                while (nameLeft.ToLower().IndexOf(searchText, StringComparison.Ordinal) is int rapidTextStart && rapidTextStart != -1)
+                {
+                    var before = rapidTextStart > 0 ? nameLeft.Substring(0, rapidTextStart) : null;
+                    var rapidTravel = nameLeft.Substring(rapidTextStart, searchText.Length);
+
+                    nameLeft = nameLeft.Substring(rapidTextStart + searchText.Length);
+
+                    if (before != null)
+                    {
+                        nameParts.Add(new ItemNamePart(before));
+                    }
+
+                    nameParts.Add(new ItemNamePart(rapidTravel, true));
+                }
+
+                if (nameLeft.Length > 0)
+                {
+                    nameParts.Add(new ItemNamePart(nameLeft));
+                }
+            }
+            else
+            {
+                nameParts.Add(new ItemNamePart(name));
+            }
+            return nameParts;
+        }
+
+        public string GetFileName(string fullName)
+        {
+            var parts = fullName.Split('.');
+            var fileName = string.Join('.', parts[..^1]);
+            return string.IsNullOrEmpty(fileName) ? fullName : fileName;
+        }
+
+        public string GetFileExtension(string fullName)
+        {
+            var parts = fullName.Split('.');
+            return parts.Length == 1 || (parts.Length == 2 && string.IsNullOrEmpty(parts[0])) ? "" : parts[^1];
+        }
+    }
+}