wip: 🧠 初步的框架

src/backend/NetAdmin.Domain/Attributes/DataValidation/UserNameAttribute.cs

@@ -0,0 +1,34 @@
+namespace NetAdmin.Domain.Attributes.DataValidation;
+
+/// <summary>
+///     用户名验证器
+/// </summary>
+[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property | AttributeTargets.Parameter)]
+public sealed class UserNameAttribute : RegexAttribute
+{
+    /// <summary>
+    ///     Initializes a new instance of the <see cref="UserNameAttribute" /> class.
+    /// </summary>
+    public UserNameAttribute() //
+        : base(Chars.RGX_USERNAME)
+    {
+        ErrorMessageResourceType = typeof(Ln);
+    }
+
+    /// <inheritdoc />
+    public override bool IsValid(object value)
+    {
+        if (!base.IsValid(value)) {
+            ErrorMessageResourceName = nameof(Ln.用户名长度4位以上);
+            return false;
+        }
+
+        if (!new MobileAttribute().IsValid(value)) {
+            return true;
+        }
+
+        // 不能是手机号
+        ErrorMessageResourceName = nameof(Ln.用户名不能是手机号);
+        return false;
+    }
+}