// Copyright (C) Stichting Deltares 2019. All rights reserved.
//
// This file is part of the Dam Engine.
//
// The Dam Engine is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero 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;
using System.Linq;
using Deltares.DamEngine.Data.Geometry;
using Deltares.DamEngine.Data.Geotechnics;
using NUnit.Framework;

namespace Deltares.DamEngine.Data.Tests.Geotechnics
{
    [TestFixture]
    public class SurfaceLine2Tests
    {
        [Test]
        public void TestAddingCharacteristicPointsOnSameLocationDoesNotAddDoublePointsInGeometry()
        {
            SurfaceLine2 surfaceLine = new SurfaceLine2();
            surfaceLine.CharacteristicPoints.Geometry = surfaceLine.Geometry;
            AddPointToSurfaceLine(surfaceLine, 0.0, 0.0, CharacteristicPointType.SurfaceLevelOutside);
            AddPointToSurfaceLine(surfaceLine, 2.0, 0.5, CharacteristicPointType.None);
            AddPointToSurfaceLine(surfaceLine, 4.0, 0.0, CharacteristicPointType.DikeToeAtRiver);
            AddPointToSurfaceLine(surfaceLine, 9.0, 5.0, CharacteristicPointType.DikeTopAtRiver);
            AddPointToSurfaceLine(surfaceLine, 10.0, 5.2, CharacteristicPointType.None);
            AddPointToSurfaceLine(surfaceLine, 13.0, 5.4, CharacteristicPointType.DikeTopAtPolder);
            AddPointToSurfaceLine(surfaceLine, 13.0, 5.4, CharacteristicPointType.TrafficLoadOutside);
            AddPointToSurfaceLine(surfaceLine, 14.0, 4.52, CharacteristicPointType.TrafficLoadInside);
            AddPointToSurfaceLine(surfaceLine, 18.0, 1.0, CharacteristicPointType.DikeToeAtPolder);
            AddPointToSurfaceLine(surfaceLine, 24.0, 1.0, CharacteristicPointType.SurfaceLevelInside);
            surfaceLine.Geometry.SyncCalcPoints();
            Assert.AreEqual(10, surfaceLine.CharacteristicPoints.Count);
            double tolerance = 0.001;
            Assert.AreEqual(2, surfaceLine.CharacteristicPoints.Count(cp => Math.Abs(cp.X - 13.0) < tolerance && Math.Abs(cp.Z - 5.4) < tolerance));
            // Because TrafficLoadOutside and DikeTopAtPolder are on the same location, 1 point less should be in the geometry
            Assert.AreEqual(9, surfaceLine.Geometry.Points.Count);
            Assert.AreEqual(1, surfaceLine.Geometry.Points.Count(cp => Math.Abs(cp.X - 13.0) < tolerance && Math.Abs(cp.Z - 5.4) < tolerance));
        }

        private void AddPointToSurfaceLine(SurfaceLine2 surfaceLine, double xCoordinate, double zCoordinate, CharacteristicPointType characteristicPointType)
        {
            var geometryPoint = new GeometryPoint()
            {
                X = xCoordinate,
                Y = 0.0,
                Z = zCoordinate,
            };
            surfaceLine.AddCharacteristicPoint(geometryPoint, characteristicPointType);
        }
    }
}