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Services/SlugHelper.cs

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+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace SimpleWiki.Services;
+
+public static class SlugHelper
+{
+    public static string Generate(string title)
+    {
+        if (string.IsNullOrWhiteSpace(title))
+        {
+            return string.Empty;
+        }
+
+        var normalized = title.Trim().ToLowerInvariant();
+        normalized = normalized.Replace('ё', 'е');
+
+        var sb = new StringBuilder();
+        foreach (var ch in normalized)
+        {
+            if (char.IsLetterOrDigit(ch))
+            {
+                sb.Append(ch);
+            }
+            else if (char.IsWhiteSpace(ch) || ch == '-' || ch == '_')
+            {
+                sb.Append('-');
+            }
+        }
+
+        var slug = Regex.Replace(sb.ToString(), "-+", "-").Trim('-');
+        return string.IsNullOrWhiteSpace(slug) ? $"article-{DateTime.UtcNow:yyyyMMddHHmmss}" : slug;
+    }
+}