1 files changed, 33 insertions, 0 deletions
diff --git a/Timeline/Models/Validation/NameValidator.cs b/Timeline/Models/Validation/NameValidator.cs
new file mode 100644
index 00000000..8db10ebd
--- /dev/null
+++ b/Timeline/Models/Validation/NameValidator.cs
@@ -0,0 +1,33 @@
+using System.Linq;
+using static Timeline.Resources.Models.Validation.NameValidator;
+
+namespace Timeline.Models.Validation
+{
+    public class NameValidator : Validator<string>
+    {
+        public const int MaxLength = 26;
+
+        protected override (bool, string) DoValidate(string value)
+        {
+            if (value.Length == 0)
+            {
+                return (false, MessageEmptyString);
+            }
+
+            if (value.Length > 26)
+            {
+                return (false, MessageTooLong);
+            }
+
+            foreach ((char c, int i) in value.Select((c, i) => (c, i)))
+            {
+                if (!(char.IsLetterOrDigit(c) || c == '-' || c == '_'))
+                {
+                    return (false, MessageInvalidChar);
+                }
+            }
+
+            return (true, GetSuccessMessage());
+        }
+    }
+}