implement

dotnet/AipsCore/Domain/Common/Validation/Rules/ColorFormatRule.cs

@@ -0,0 +1,29 @@
+using AipsCore.Domain.Abstract.Rule;
+
+namespace AipsCore.Domain.Common.Validation.Rules;
+
+public class ColorFormatRule : AbstractRule
+{
+    private readonly string _colorValue;
+    protected override string ErrorCode => "color_format";
+    protected override string ErrorMessage => "Color should be in format '#000000'";
+
+    public ColorFormatRule(string colorValue)
+    {
+        _colorValue = colorValue;
+    }
+    
+    public override bool Validate()
+    {
+        if (_colorValue.Length != 7) return false;
+
+        if (_colorValue[0] != '#') return false;
+
+        for (int i = 1; i < _colorValue.Length; i++)
+        {
+            if (!char.IsAsciiHexDigit(_colorValue[i])) return false;    
+        }
+        
+        return true;
+    }
+}

dotnet/AipsCore/Domain/Common/Validation/Rules/MaxValueRule.cs

@@ -0,0 +1,23 @@
+using System.Numerics;
+using AipsCore.Domain.Abstract.Rule;
+
+namespace AipsCore.Domain.Common.Validation.Rules;
+
+public class MaxValueRule<T> : AbstractRule where T : INumber<T>
+{
+    private readonly T _value;
+    private readonly T _maximum;
+
+    public MaxValueRule(T value, T maximum)
+    {
+        _value = value;
+        _maximum = maximum;
+    }
+    
+    protected override string ErrorCode => "max_value";
+    protected override string ErrorMessage => $"Value of '{ValueObjectName}' should be at most {_maximum}";
+    public override bool Validate()
+    {
+        return _value <= _maximum;
+    }
+}

dotnet/AipsCore/Domain/Common/Validation/Rules/MinValueRule.cs

@@ -0,0 +1,23 @@
+using System.Numerics;
+using AipsCore.Domain.Abstract.Rule;
+
+namespace AipsCore.Domain.Common.Validation.Rules;
+
+public class MinValueRule<T>: AbstractRule where T : INumber<T>
+{
+    private readonly T _value;
+    private readonly T _minimum;
+
+    public MinValueRule(T value, T minimum)
+    {
+        _value = value;
+        _minimum = minimum;
+    }
+    
+    protected override string ErrorCode => "min_value";
+    protected override string ErrorMessage => $"Value of '{ValueObjectName}' should be at least {_minimum}";
+    public override bool Validate()
+    {
+        return _value >= _minimum;
+    }
+}