// Copyright (C) Stichting Deltares 2016. 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.Generic;
using System.Linq;
using Core.Common.Base.Geometry;
using Core.Components.Gis.Features;
using Core.Components.Gis.Geometries;
using NUnit.Framework;
using Ringtoets.Common.Data.AssessmentSection;
using Ringtoets.Common.Data.FailureMechanism;
using Ringtoets.Common.Forms.Views;
using Ringtoets.HydraRing.Data;

namespace Ringtoets.Common.Forms.Test.Views
{
    [TestFixture]
    public class RingtoetsMapDataFeaturesFactoryTest
    {
        [Test]
        public void CreateReferenceLineFeatures_ReferenceLineNull_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateReferenceLineFeatures(null);

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateReferenceLineFeatures_GivenReferenceLine_ReturnsReferenceLineFeaturesArray()
        {
            // Setup
            var points = new[]
            {
                new Point2D(1.2, 2.3),
                new Point2D(2.7, 2.0)
            };
            var referenceLine = new ReferenceLine();
            referenceLine.SetGeometry(points);

            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateReferenceLineFeatures(referenceLine);

            // Assert
            AssertEqualPointCollections(points, features.ElementAt(0).MapGeometries.ElementAt(0));
        }

        [Test]
        public void CreateHydraulicBoundaryDatabaseFeatures_HydraulicBoundaryDatabaseNull_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateHydraulicBoundaryDatabaseFeatures(null);

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateHydraulicBoundaryDatabaseFeatures_GivenHydraulicBoundaryDatabase_ReturnsLocationFeaturesArray()
        {
            // Setup
            var points = new[]
            {
                new Point2D(1.2, 2.3),
                new Point2D(2.7, 2.0)
            };
            var hydraulicBoundaryDatabase = new HydraulicBoundaryDatabase();
            hydraulicBoundaryDatabase.Locations.AddRange(points.Select(p => new HydraulicBoundaryLocation(0, "", p.X, p.Y)));

            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateHydraulicBoundaryDatabaseFeatures(hydraulicBoundaryDatabase);

            // Assert
            var hydraulicBoundaryLocations = hydraulicBoundaryDatabase.Locations;
            Assert.AreEqual(hydraulicBoundaryLocations.Count, features.Length);
            for (int i = 0; i < hydraulicBoundaryLocations.Count; i++)
            {
                Assert.AreEqual(4, features[i].MetaData.Keys.Count);
                Assert.AreEqual(hydraulicBoundaryLocations[i].Id, features[i].MetaData["ID"]);
                Assert.AreEqual(hydraulicBoundaryLocations[i].Name, features[i].MetaData["Name"]);
                Assert.AreEqual(hydraulicBoundaryLocations[i].DesignWaterLevel, features[i].MetaData["DesignWaterLevel"]);
                Assert.AreEqual(hydraulicBoundaryLocations[i].WaveHeight, features[i].MetaData["WaveHeight"]);
            }

            AssertEqualFeatureCollections(points, features);
        }

        [Test]
        public void CreateFailureMechanismSectionFeatures_SectionsNull_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionFeatures(null);

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateFailureMechanismSectionFeatures_NoSections_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionFeatures(Enumerable.Empty<FailureMechanismSection>());

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateFailureMechanismSectionFeatures_GivenSections_ReturnsSectionFeaturesArray()
        {
            // Setup
            var pointsOne = new[]
            {
                new Point2D(1.2, 2.3),
                new Point2D(2.7, 2.0)
            };
            var pointsTwo = new[]
            {
                new Point2D(3.2, 23.3),
                new Point2D(7.7, 12.6)
            };
            var sections = new[]
            {
                new FailureMechanismSection(string.Empty, pointsOne),
                new FailureMechanismSection(string.Empty, pointsTwo)
            };

            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionFeatures(sections);

            // Assert
            Assert.AreEqual(1, features.Length);
            Assert.AreEqual(2, features.ElementAt(0).MapGeometries.Count());
            AssertEqualPointCollections(pointsOne, features.ElementAt(0).MapGeometries.ElementAt(0));
            AssertEqualPointCollections(pointsTwo, features.ElementAt(0).MapGeometries.ElementAt(1));
        }

        [Test]
        public void CreateFailureMechanismSectionStartPointFeatures_SectionsNull_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionStartPointFeatures(null);

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateFailureMechanismSectionStartPointFeatures_NoSections_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionStartPointFeatures(Enumerable.Empty<FailureMechanismSection>());

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateFailureMechanismSectionStartPointFeatures_GivenSections_ReturnsSectionBeginPointFeaturesArray()
        {
            // Setup
            var pointsOne = new[]
            {
                new Point2D(1.2, 2.3),
                new Point2D(2.7, 2.0)
            };
            var pointsTwo = new[]
            {
                new Point2D(3.2, 23.3),
                new Point2D(7.7, 12.6)
            };
            var sections = new[]
            {
                new FailureMechanismSection(string.Empty, pointsOne),
                new FailureMechanismSection(string.Empty, pointsTwo)
            };

            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionStartPointFeatures(sections);

            // Assert
            Assert.AreEqual(1, features.Length);
            Assert.AreEqual(1, features.ElementAt(0).MapGeometries.Count());
            AssertEqualPointCollections(new[]
            {
                pointsOne[0],
                pointsTwo[0]
            }, features.ElementAt(0).MapGeometries.ElementAt(0));
        }

        [Test]
        public void CreateFailureMechanismSectionEndPointFeatures_SectionsNull_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionEndPointFeatures(null);

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateFailureMechanismSectionEndPointFeatures_NoSections_ReturnsEmptyFeaturesArray()
        {
            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionEndPointFeatures(Enumerable.Empty<FailureMechanismSection>());

            // Assert
            CollectionAssert.IsEmpty(features);
        }

        [Test]
        public void CreateFailureMechanismSectionEndPointFeatures_GivenSections_ReturnsSectionEndPointFeaturesArray()
        {
            // Setup
            var pointsOne = new[]
            {
                new Point2D(1.2, 2.3),
                new Point2D(2.7, 2.0)
            };
            var pointsTwo = new[]
            {
                new Point2D(3.2, 23.3),
                new Point2D(7.7, 12.6)
            };
            var sections = new[]
            {
                new FailureMechanismSection(string.Empty, pointsOne),
                new FailureMechanismSection(string.Empty, pointsTwo)
            };

            // Call
            MapFeature[] features = RingtoetsMapDataFeaturesFactory.CreateFailureMechanismSectionEndPointFeatures(sections);

            // Assert
            Assert.AreEqual(1, features.Length);
            Assert.AreEqual(1, features.ElementAt(0).MapGeometries.Count());
            AssertEqualPointCollections(new[]
            {
                pointsOne[1],
                pointsTwo[1]
            }, features.ElementAt(0).MapGeometries.ElementAt(0));
        }

        private static void AssertEqualFeatureCollections(Point2D[] points, MapFeature[] features)
        {
            Assert.AreEqual(points.Length, features.Length);
            for (int i = 0; i < points.Length; i++)
            {
                CollectionAssert.AreEqual(new[] { points[i] }, features[i].MapGeometries.First().PointCollections.First());
            }
        }

        private static void AssertEqualPointCollections(IEnumerable<Point2D> points, MapGeometry geometry)
        {
            CollectionAssert.AreEqual(points, geometry.PointCollections.First());
        }
    }
}