using EC.Helper.RabbitFunc.Runtime;

namespace EC.Helper.RabbitFunc.Expressions;

public class ConditionalExpression : Expression
{
    internal ConditionalExpression(Expression test, Expression trueExpression, Expression falseExpression)
        : base(ExpressionType.MethodCall)
    {
        Test = test;
        TrueExpression = trueExpression;
        FalseExpression = falseExpression;
    }

    public override ExpressionType NodeType => ExpressionType.Conditional;

    public Expression Test { get; }

    public Expression TrueExpression { get; }

    public Expression FalseExpression { get; }

    public override object Eval(RuntimeContext context)
    {
        return (bool)Test.Eval(context) ? TrueExpression.Eval(context) : FalseExpression.Eval(context);
    }

    public override string ToString()
    {
        return string.Format("if({0},{1},{2})", Test, TrueExpression, FalseExpression);
    }
}