McpFloatingPointParameterAttribute.cs

using System;
using System.Collections.Generic;
using Waher.Content.Xml;
using Waher.Script;
 
namespace Waher.Networking.HTTP.Mcp.Model.Attributes
{
    [AttributeUsage(AttributeTargets.Parameter | AttributeTargets.ReturnValue |
        AttributeTargets.Property | AttributeTargets.Field,
        Inherited = true, AllowMultiple = false)]
    public class McpFloatingPointParameterAttribute : McpRangeParameterAttribute
    {
        public McpFloatingPointParameterAttribute(string? Title, string? Description)
            : base(Title, Description)
        {
        }
 
        public McpFloatingPointParameterAttribute(string? Title, string? Description,
            object? MinValue, object? MaxValue)
            : base(Title, Description, MinValue, MaxValue)
        {
            if (!IsFloatingPointType(MinValue))
                throw new ArgumentException("MinValue is not a float-point type.", nameof(MinValue));
 
            if (!IsFloatingPointType(MaxValue))
                throw new ArgumentException("MaxValue is not a float-point type.", nameof(MaxValue));
        }
 
        private static bool IsFloatingPointType(object? Value)
        {
            if (Value is null)
                return true;
 
            switch (Type.GetTypeCode(Value.GetType()))
            {
                case TypeCode.Single:
                case TypeCode.Double:
                case TypeCode.Decimal:
                    return true;
 
                default:
                    return false;
            }
        }
 
        public override void Annotate(Dictionary<string, object?> Schema)
        {
            base.Annotate(Schema);
 
            Schema["type"] = "number";
        }
 
        public override void GetHtmlInputAttributes(Dictionary<string, string> Attributes)
        {
            base.GetHtmlInputAttributes(Attributes);
            Attributes["type"] = "number";
            Attributes["step"] = "any";
        }
 
        public override string GetHtmlAttributeValue(object Value)
        {
            return Expression.ToExpressionString(Value);
        }
    }
}