// Copyright (C) Stichting Deltares 2021. All rights reserved.
//
// This file is part of the application DAM - UI.
//
// DAM - UI 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;
using System.Collections.Generic;
using System.Linq;
using Deltares.Dam.Data;
using Deltares.Dam.TestHelper.TestUtils;
using Deltares.Geometry;
using Deltares.Geotechnics.GeotechnicalGeometry;
using Deltares.Geotechnics.Soils;
using Deltares.Geotechnics.SurfaceLines;
using NUnit.Framework;

namespace Deltares.Dam.Tests
{
    [TestFixture]
    public class EntityFactoryTest
    {
        private EntityFactory factory;
        private SoilProfile1D soilProfile;

        [TestFixtureSetUp]
        public void FixtureSetup()
        {
            soilProfile = FactoryForSoilProfileTests.CreateSimpleProfile();
            soilProfile.Name = "1";
        }

        [SetUp]
        public void TestSetup()
        {
            factory = new EntityFactory();
        }

        [Test]
        [ExpectedException(typeof(ArgumentException))]
        public void ThrowsExceptionWhenSegmentIdIsNull()
        {
            factory.CreateSegment(null, "D1", 1, FailureMechanismSystemType.StabilityInside, null);
        }

        [Test]
        [ExpectedException(typeof(ArgumentException))]
        public void ThrowsExceptionWhenSegmentIdIsEmpty()
        {
            factory.CreateSegment("", "D1", 1, FailureMechanismSystemType.StabilityInside, null);
        }

        [Test]
        [ExpectedException(typeof(EntityFactoryException))]
        public void ThrowsExceptionWhenSoilProfileIdIsNull()
        {
            factory.CreateSegment("1", null, 1, FailureMechanismSystemType.StabilityInside, null);
        }

        [Test]
        [ExpectedException(typeof(EntityFactoryException))]
        public void ThrowsExceptionWhenSoilProfileIdIsEmpty()
        {
            factory.CreateSegment("1", "", 1, FailureMechanismSystemType.StabilityInside, null);
        }

        [Test]
        public void DoesntThrowExceptionWhenCollectionsAreEmpty()
        {
            factory = new EntityFactory(new List<Location>(), new List<SoilProfile1D> { soilProfile }, new List<Segment>());
            var segment = factory.CreateSegment("1", "1", 0, FailureMechanismSystemType.StabilityInside, null);
            Assert.IsNotNull(segment);
        }

        [Test]
        public void DoesntThrowExceptionWhenSegmentCollectionIsNull()
        {
            factory = new EntityFactory(new List<Location>(), new List<SoilProfile1D> { soilProfile }, null);
            var segment = factory.CreateSegment("1", "1", 0, FailureMechanismSystemType.StabilityInside, null);
            Assert.IsNotNull(segment);
        }

        [Test]
        public void DoesntThrowExceptionWhenSegmentCollectionsContainsNullItems()
        {
            factory = new EntityFactory(new List<Location>(), new List<SoilProfile1D> { soilProfile }, new List<Segment> { null });
            var segment = factory.CreateSegment("1", "1", 0, FailureMechanismSystemType.StabilityInside, null);
            Assert.IsNotNull(segment);
        }

        [Test]
        public void DoesntThrowExceptionWhenLocationCollectionIsNull()
        {
            factory = new EntityFactory(null, new List<SoilProfile1D> { soilProfile }, new List<Segment>());
            var segment = factory.CreateSegment("1", "1", 0, FailureMechanismSystemType.StabilityInside, null);
            Assert.IsNotNull(segment);
        }

        [Test]
        public void DoesntThrowExceptionWhenLocationCollectionContainsNullItems()
        {
            factory = new EntityFactory(new List<Location> { null }, new List<SoilProfile1D> { soilProfile }, new List<Segment>());
            var segment = factory.CreateSegment("1", "1", 0, FailureMechanismSystemType.StabilityInside, null);
            Assert.IsNotNull(segment);
        }

        [Test]
        public void CanCreateSegment()
        {
            factory = new EntityFactory(new List<Location>(), new List<SoilProfile1D> { soilProfile }, new List<Segment>());
            var segment = factory.CreateSegment("1", "1", 20, FailureMechanismSystemType.StabilityInside, null);
            Assert.AreEqual("1", segment.Name);
            Assert.AreEqual(20, segment.GetSoilProfileProbability(soilProfile, FailureMechanismSystemType.StabilityInside));
            Assert.AreEqual("1", segment.GetMostProbableProfile(FailureMechanismSystemType.StabilityInside).Name);
            Assert.AreEqual(1, factory.SoilProfiles.Count());
        }

        [Test]
        [ExpectedException(typeof(RequiredEntityNotExistException))]
        public void ThrowsWhenTheRequiredSurfaceLineDoesNotExistInLookupOnCreatingASurfaceLinePoint()
        {
            const string surfaceLineId = "D1";
            factory.CreateSurfaceLinePoint(surfaceLineId, CharacteristicPointType.TrafficLoadOutside, 0, 0);
        }

        [Test]
        [ExpectedException(typeof(PointNotExistsException))]
        public void ThrowsExceptionWhenPointToAddDoesNotExistInSurfaceLinePoinList()
        {
            const string surfaceLineId = "D1";
            using (var surfaceLine2 = new SurfaceLine2
            {
                Name = surfaceLineId,
                Geometry = new LocalizedGeometryPointString(),
                CharacteristicPoints = { GeometryMustContainPoint = true }
            })
            {
                var surfaceLines = new List<SurfaceLine2>
                                   {
                                       surfaceLine2
                                   };

                factory = new EntityFactory(surfaceLines);
                factory.CreateSurfaceLinePoint(surfaceLineId, CharacteristicPointType.TrafficLoadOutside, 0, 0);
            }
        }

        [Test]
        public void CanCreateSurfaceLinePoint()
        {
            const string surfaceLineId = "D1";

            using (var surfaceLine2 = new SurfaceLine2
            {
                Name = surfaceLineId,
                Geometry = new LocalizedGeometryPointString(),
                CharacteristicPoints = { GeometryMustContainPoint = true }
            })
            {
                var surfaceLines = new List<SurfaceLine2>
                                   {
                                        surfaceLine2
                                   };

                surfaceLines[0].AddCharacteristicPoint(new GeometryPoint());
                factory = new EntityFactory(surfaceLines);

                var point = factory.CreateSurfaceLinePoint(surfaceLineId, CharacteristicPointType.TrafficLoadOutside, 0, 0);
                Assert.IsNotNull(point);
                Assert.AreEqual(1, surfaceLines[0].Geometry.Points.Count);
            }
        }

        [Test]
        public void DoesntAdCharacteristicPointToSurfaceLineWhenPointIsInvalid()
        {
            const string surfaceLineId = "D1";

            using (var surfaceLine2 = new SurfaceLine2
            {
                Name = surfaceLineId,
                Geometry = new LocalizedGeometryPointString(),
                CharacteristicPoints = { GeometryMustContainPoint = true }
            })
            {
                var surfaceLines = new List<SurfaceLine2>
                                   {
                                       surfaceLine2
                                   };

                factory = new EntityFactory(surfaceLines);

                var invalidPoint = new { X = -1, Z = -1 };

                var point = factory.CreateSurfaceLinePoint(surfaceLineId, CharacteristicPointType.TrafficLoadOutside, invalidPoint.X, invalidPoint.Z);
                Assert.IsNull(point);
                Assert.AreEqual(0, surfaceLines[0].Geometry.Points.Count);
            }
        }

        [Test]        
        public void DoesntThrowExceptionWhenSegmentAlreadyExist()
        {
            const string segmentId = "1";
            var segment = new Segment
            {
                                  Name = segmentId
                              };

            factory = new EntityFactory(
                null,
                new List<SoilProfile1D> { soilProfile },
                new List<Segment>
                    {
                        segment
                    });

            factory.CreateSegment(segmentId, "1", 0, FailureMechanismSystemType.StabilityInside, null);
        }

        [Test]
        public void WhenCreatingASegmentExistingLocationsAreAdded()
        {
            const string exptectedLocationName = "SomeLocation";
            using (var location = new Location
            {
                Segment = new Segment { Name = "1" },
                Name = exptectedLocationName
            })
            {
                factory = new EntityFactory(new List<Location>{location},
                    new List<SoilProfile1D> { soilProfile },
                    null);

                var segment = factory.CreateSegment("1", "1", 20, FailureMechanismSystemType.StabilityInside, null);
                Assert.AreEqual("1", segment.Name);
                Assert.AreEqual(1, factory.Locations.Count());
                Assert.AreEqual(exptectedLocationName, factory.Locations[0].Name);
                Assert.AreEqual(20, segment.GetSoilProfileProbability(soilProfile, FailureMechanismSystemType.StabilityInside));
                Assert.AreEqual("1", segment.GetMostProbableProfile(FailureMechanismSystemType.StabilityInside).Name);
            }
        }

        [Test]
        public void WhenCreatingASegmentExistingProfilesAreAdded()
        {
            const string exptectedName = "D1";
            factory = new EntityFactory(
                null,
                new List<SoilProfile1D>
                    {
                        new SoilProfile1D
                        {
                                Name = exptectedName
                            }
                    },
                null);

            var segment = factory.CreateSegment("1", "D1", 20, FailureMechanismSystemType.StabilityInside, null);
            Assert.AreEqual("1", segment.Name);
            Assert.AreEqual(1, factory.SoilProfiles.Count());
            Assert.AreEqual(exptectedName, segment.GetMostProbableProfile(FailureMechanismSystemType.StabilityInside).Name);
            Assert.AreSame(factory.SoilProfiles.ElementAt(0), segment.GetMostProbableProfile(FailureMechanismSystemType.StabilityInside));
        }

        [TestFixtureTearDown]
        public void FixtureTearDown()
        {
        }
    }
}