namespace Deltares.Stability.Calculation2
{
    /// <summary>
    /// Checks whether the sliding plane has ascending x values 
    /// </summary>
    public class AscendingSlidingPlaneValidator : ISlidingCurveValidator
    {
        public AscendingSlidingPlaneValidator() {}

        public bool IsValid(SlidingCurve slidingCurve)
        {
            if (slidingCurve is SlidingPlane)
            {
                var plane = (SlidingPlane) slidingCurve;
                for (int i = 1; i < plane.SpencerSlipPlane.Count; i++)
                {
                    if (plane.SpencerSlipPlane[i].X < plane.SpencerSlipPlane[i - 1].X)
                    {
                        return false;
                    }
                }

                return true;
            }
            else
            {
                return true;
            }
        }

        public bool SlicesMustBeFilled()
        {
            return false;
        }
    }
}