// Copyright (C) Stichting Deltares 2017. All rights reserved.
//
// This file is part of Ringtoets.
//
// Ringtoets is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Deltares.WTIStability.Data.Geo;

namespace Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil
{
    /// <summary>
    /// This class compares the coordinates of the <see cref="Point2D"/>
    /// of all <see cref="GeometryCurve"/> instances of the <see cref="GeometryLoop"/>
    /// instances to determine whether they're equal to each other or not.
    /// </summary>
    public class WTIStabilityGeometryLoopComparer : IComparer<GeometryLoop>, IComparer
    {
        private readonly WTIStabilityGeometryCurveComparer curveComparer = new WTIStabilityGeometryCurveComparer();

        public int Compare(object x, object y)
        {
            return Compare(x as GeometryLoop, y as GeometryLoop);
        }

        public int Compare(GeometryLoop x, GeometryLoop y)
        {
            return x.CurveList.Where((curve, index) =>
                                         curveComparer.Compare(curve, y.CurveList[index]) == 1).Any()
                       ? 1
                       : 0;
        }
    }
}