// 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;
using Core.Common.Base.Data;
using Core.Common.Base.Geometry;
using Core.Common.TestUtil;
using NUnit.Framework;
using Ringtoets.ClosingStructures.Data.TestUtil;
using Ringtoets.Common.Data;
using Ringtoets.Common.Data.Probabilistics;
using Ringtoets.Common.Data.TestUtil;

namespace Ringtoets.ClosingStructures.Data.Test
{
    [TestFixture]
    public class ClosingStructureTest
    {
        [Test]
        public void Constructor_ValidData_ExpectedValues()
        {
            // Setup
            var location = new Point2D(1.22, 2.333);

            // Call
            var structure = new ClosingStructure(
                new ClosingStructure.ConstructionProperties
                {
                    Name = "aName",
                    Id = "anId",
                    Location = location,
                    StorageStructureArea =
                    {
                        Mean = (RoundedDouble) 123.456,
                        CoefficientOfVariation = (RoundedDouble) 0.123
                    },
                    AllowedLevelIncreaseStorage =
                    {
                        Mean = (RoundedDouble) 234.567,
                        StandardDeviation = (RoundedDouble) 0.234
                    },
                    StructureNormalOrientation = (RoundedDouble) 345.678,
                    WidthFlowApertures =
                    {
                        Mean = (RoundedDouble) 456.789,
                        StandardDeviation = (RoundedDouble) 0.456
                    },
                    LevelCrestStructureNotClosing =
                    {
                        Mean = (RoundedDouble) 567.890,
                        StandardDeviation = (RoundedDouble) 0.567
                    },
                    InsideWaterLevel =
                    {
                        Mean = (RoundedDouble) 678.901,
                        StandardDeviation = (RoundedDouble) 0.678
                    },
                    ThresholdHeightOpenWeir =
                    {
                        Mean = (RoundedDouble) 789.012,
                        StandardDeviation = (RoundedDouble) 0.789
                    },
                    AreaFlowApertures =
                    {
                        Mean = (RoundedDouble) 890.123,
                        StandardDeviation = (RoundedDouble) 0.890
                    },
                    CriticalOvertoppingDischarge =
                    {
                        Mean = (RoundedDouble) 901.234,
                        CoefficientOfVariation = (RoundedDouble) 0.901
                    },
                    FlowWidthAtBottomProtection =
                    {
                        Mean = (RoundedDouble) 111.222,
                        StandardDeviation = (RoundedDouble) 0.111
                    },
                    ProbabilityOrFrequencyOpenStructureBeforeFlooding = 321.987,
                    FailureProbabilityOpenStructure = 654.321,
                    IdenticalApertures = 42,
                    FailureProbabilityReparation = 987.654,
                    InflowModelType = ClosingStructureInflowModelType.LowSill
                });

            // Assert
            Assert.IsInstanceOf<StructureBase>(structure);
            Assert.AreEqual("aName", structure.Name);
            Assert.AreEqual("anId", structure.Id);
            Assert.AreEqual(location.X, structure.Location.X);
            Assert.AreEqual(location.Y, structure.Location.Y);

            Assert.AreEqual(345.68, structure.StructureNormalOrientation, structure.StructureNormalOrientation.GetAccuracy());

            VariationCoefficientLogNormalDistribution storageStructureArea = structure.StorageStructureArea;
            Assert.AreEqual(2, storageStructureArea.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(123.46, storageStructureArea.Mean, storageStructureArea.Mean.GetAccuracy());
            Assert.AreEqual(2, storageStructureArea.CoefficientOfVariation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.12, storageStructureArea.CoefficientOfVariation, storageStructureArea.CoefficientOfVariation.GetAccuracy());

            LogNormalDistribution allowedLevelIncreaseStorage = structure.AllowedLevelIncreaseStorage;
            Assert.AreEqual(2, allowedLevelIncreaseStorage.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(234.57, allowedLevelIncreaseStorage.Mean, allowedLevelIncreaseStorage.Mean.GetAccuracy());
            Assert.AreEqual(2, allowedLevelIncreaseStorage.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.23, allowedLevelIncreaseStorage.StandardDeviation, allowedLevelIncreaseStorage.StandardDeviation.GetAccuracy());

            NormalDistribution widthFlowApertures = structure.WidthFlowApertures;
            Assert.AreEqual(2, widthFlowApertures.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(456.79, widthFlowApertures.Mean, widthFlowApertures.Mean.GetAccuracy());
            Assert.AreEqual(2, widthFlowApertures.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.46, widthFlowApertures.StandardDeviation, widthFlowApertures.StandardDeviation.GetAccuracy());

            NormalDistribution levelCrestStructureNotClosing = structure.LevelCrestStructureNotClosing;
            Assert.AreEqual(2, levelCrestStructureNotClosing.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(567.89, levelCrestStructureNotClosing.Mean, levelCrestStructureNotClosing.Mean.GetAccuracy());
            Assert.AreEqual(2, levelCrestStructureNotClosing.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.57, levelCrestStructureNotClosing.StandardDeviation, levelCrestStructureNotClosing.StandardDeviation.GetAccuracy());

            NormalDistribution insideWaterLevel = structure.InsideWaterLevel;
            Assert.AreEqual(2, insideWaterLevel.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(678.90, insideWaterLevel.Mean, insideWaterLevel.Mean.GetAccuracy());
            Assert.AreEqual(2, insideWaterLevel.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.68, insideWaterLevel.StandardDeviation, insideWaterLevel.StandardDeviation.GetAccuracy());

            NormalDistribution thresholdHeightOpenWeir = structure.ThresholdHeightOpenWeir;
            Assert.AreEqual(2, thresholdHeightOpenWeir.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(789.01, thresholdHeightOpenWeir.Mean, thresholdHeightOpenWeir.Mean.GetAccuracy());
            Assert.AreEqual(2, thresholdHeightOpenWeir.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.79, thresholdHeightOpenWeir.StandardDeviation, thresholdHeightOpenWeir.StandardDeviation.GetAccuracy());

            LogNormalDistribution areaFlowApertures = structure.AreaFlowApertures;
            Assert.AreEqual(2, areaFlowApertures.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(890.12, areaFlowApertures.Mean, areaFlowApertures.Mean.GetAccuracy());
            Assert.AreEqual(2, areaFlowApertures.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.89, areaFlowApertures.StandardDeviation, areaFlowApertures.StandardDeviation.GetAccuracy());

            VariationCoefficientLogNormalDistribution criticalOvertoppingDischarge = structure.CriticalOvertoppingDischarge;
            Assert.AreEqual(2, criticalOvertoppingDischarge.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(901.23, criticalOvertoppingDischarge.Mean, criticalOvertoppingDischarge.Mean.GetAccuracy());
            Assert.AreEqual(2, criticalOvertoppingDischarge.CoefficientOfVariation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.90, criticalOvertoppingDischarge.CoefficientOfVariation, criticalOvertoppingDischarge.CoefficientOfVariation.GetAccuracy());

            LogNormalDistribution flowWidthAtBottomProtection = structure.FlowWidthAtBottomProtection;
            Assert.AreEqual(2, flowWidthAtBottomProtection.Mean.NumberOfDecimalPlaces);
            Assert.AreEqual(111.22, flowWidthAtBottomProtection.Mean, flowWidthAtBottomProtection.Mean.GetAccuracy());
            Assert.AreEqual(2, flowWidthAtBottomProtection.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.11, flowWidthAtBottomProtection.StandardDeviation, flowWidthAtBottomProtection.StandardDeviation.GetAccuracy());

            Assert.AreEqual(321.987, structure.ProbabilityOrFrequencyOpenStructureBeforeFlooding);
            Assert.AreEqual(654.321, structure.FailureProbabilityOpenStructure);
            Assert.AreEqual(42, structure.IdenticalApertures);
            Assert.AreEqual(987.654, structure.FailureProbabilityReparation);

            Assert.AreEqual(ClosingStructureInflowModelType.LowSill, structure.InflowModelType);
        }

        [Test]
        public void Constructor_DefaultConstructionProperties_ExpectedValues()
        {
            // Setup
            var location = new Point2D(1.22, 2.333);

            // Call
            var structure = new ClosingStructure(
                new ClosingStructure.ConstructionProperties
                {
                    Name = "aName",
                    Id = "anId",
                    Location = location
                });

            // Assert
            Assert.IsInstanceOf<StructureBase>(structure);
            Assert.AreEqual("aName", structure.Name);
            Assert.AreEqual("anId", structure.Id);
            Assert.AreEqual(location.X, structure.Location.X);
            Assert.AreEqual(location.Y, structure.Location.Y);

            Assert.AreEqual(2, structure.StructureNormalOrientation.NumberOfDecimalPlaces);
            Assert.IsNaN(structure.StructureNormalOrientation);

            VariationCoefficientLogNormalDistribution storageStructureArea = structure.StorageStructureArea;
            Assert.AreEqual(2, storageStructureArea.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(storageStructureArea.Mean);
            Assert.AreEqual(2, storageStructureArea.CoefficientOfVariation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.1, storageStructureArea.CoefficientOfVariation, storageStructureArea.CoefficientOfVariation.GetAccuracy());

            LogNormalDistribution allowedLevelIncreaseStorage = structure.AllowedLevelIncreaseStorage;
            Assert.AreEqual(2, allowedLevelIncreaseStorage.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(allowedLevelIncreaseStorage.Mean);
            Assert.AreEqual(2, allowedLevelIncreaseStorage.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.1, allowedLevelIncreaseStorage.StandardDeviation, allowedLevelIncreaseStorage.StandardDeviation.GetAccuracy());

            NormalDistribution widthFlowApertures = structure.WidthFlowApertures;
            Assert.AreEqual(2, widthFlowApertures.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(widthFlowApertures.Mean);
            Assert.AreEqual(2, widthFlowApertures.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.2, widthFlowApertures.StandardDeviation, widthFlowApertures.StandardDeviation.GetAccuracy());

            NormalDistribution levelCrestStructureNotClosing = structure.LevelCrestStructureNotClosing;
            Assert.AreEqual(2, levelCrestStructureNotClosing.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(levelCrestStructureNotClosing.Mean);
            Assert.AreEqual(2, levelCrestStructureNotClosing.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.05, levelCrestStructureNotClosing.StandardDeviation, levelCrestStructureNotClosing.StandardDeviation.GetAccuracy());

            NormalDistribution insideWaterLevel = structure.InsideWaterLevel;
            Assert.AreEqual(2, insideWaterLevel.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(insideWaterLevel.Mean);
            Assert.AreEqual(2, insideWaterLevel.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.1, insideWaterLevel.StandardDeviation, insideWaterLevel.StandardDeviation.GetAccuracy());

            NormalDistribution thresholdHeightOpenWeir = structure.ThresholdHeightOpenWeir;
            Assert.AreEqual(2, thresholdHeightOpenWeir.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(thresholdHeightOpenWeir.Mean);
            Assert.AreEqual(2, thresholdHeightOpenWeir.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.1, thresholdHeightOpenWeir.StandardDeviation, thresholdHeightOpenWeir.StandardDeviation.GetAccuracy());

            LogNormalDistribution areaFlowApertures = structure.AreaFlowApertures;
            Assert.AreEqual(2, areaFlowApertures.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(areaFlowApertures.Mean);
            Assert.AreEqual(2, areaFlowApertures.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.01, areaFlowApertures.StandardDeviation, areaFlowApertures.StandardDeviation.GetAccuracy());

            VariationCoefficientLogNormalDistribution criticalOvertoppingDischarge = structure.CriticalOvertoppingDischarge;
            Assert.AreEqual(2, criticalOvertoppingDischarge.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(criticalOvertoppingDischarge.Mean);
            Assert.AreEqual(2, criticalOvertoppingDischarge.CoefficientOfVariation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.15, criticalOvertoppingDischarge.CoefficientOfVariation, criticalOvertoppingDischarge.CoefficientOfVariation.GetAccuracy());

            LogNormalDistribution flowWidthAtBottomProtection = structure.FlowWidthAtBottomProtection;
            Assert.AreEqual(2, flowWidthAtBottomProtection.Mean.NumberOfDecimalPlaces);
            Assert.IsNaN(flowWidthAtBottomProtection.Mean);
            Assert.AreEqual(2, flowWidthAtBottomProtection.StandardDeviation.NumberOfDecimalPlaces);
            Assert.AreEqual(0.05, flowWidthAtBottomProtection.StandardDeviation, flowWidthAtBottomProtection.StandardDeviation.GetAccuracy());

            Assert.AreEqual(1, structure.ProbabilityOrFrequencyOpenStructureBeforeFlooding);
            Assert.AreEqual(1, structure.FailureProbabilityOpenStructure);
            Assert.AreEqual(1, structure.IdenticalApertures);
            Assert.AreEqual(1, structure.FailureProbabilityReparation);

            Assert.AreEqual(ClosingStructureInflowModelType.VerticalWall, structure.InflowModelType);
        }

        [Test]
        public void CopyProperties_FromStructureNull_ThrowsArgumentNullException()
        {
            // Setup
            var structure = new ClosingStructure(new ClosingStructure.ConstructionProperties
            {
                Name = "aName",
                Id = "anId",
                Location = new Point2D(0, 0)
            });

            // Call
            TestDelegate call = () => structure.CopyProperties(null);

            // Assert
            string paramName = Assert.Throws<ArgumentNullException>(call).ParamName;
            Assert.AreEqual("fromStructure", paramName);
        }

        [Test]
        public void CopyProperties_FromStructure_UpdatesProperties()
        {
            // Setup
            var random = new Random(123);
            var structure = new ClosingStructure(new ClosingStructure.ConstructionProperties
            {
                Name = "aName",
                Id = "anId",
                Location = new Point2D(0, 0)
            });

            var otherStructure = new ClosingStructure(new ClosingStructure.ConstructionProperties
            {
                Name = "otherName",
                Id = "otherId",
                Location = new Point2D(1, 1),
                StructureNormalOrientation = (RoundedDouble) random.Next(),
                AllowedLevelIncreaseStorage =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                AreaFlowApertures =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                CriticalOvertoppingDischarge =
                {
                    Mean = random.NextRoundedDouble(),
                    CoefficientOfVariation = random.NextRoundedDouble()
                },
                FlowWidthAtBottomProtection =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                InsideWaterLevel =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                LevelCrestStructureNotClosing =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                StorageStructureArea =
                {
                    Mean = random.NextRoundedDouble(),
                    CoefficientOfVariation = random.NextRoundedDouble()
                },
                ThresholdHeightOpenWeir =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                WidthFlowApertures =
                {
                    Mean = random.NextRoundedDouble(),
                    StandardDeviation = random.NextRoundedDouble()
                },
                FailureProbabilityOpenStructure = random.NextDouble(),
                FailureProbabilityReparation = random.NextDouble(),
                InflowModelType = ClosingStructureInflowModelType.FloodedCulvert,
                IdenticalApertures = random.Next(),
                ProbabilityOrFrequencyOpenStructureBeforeFlooding = random.NextDouble()
            });

            // Call
            structure.CopyProperties(otherStructure);

            // Assert
            Assert.AreNotEqual(otherStructure.Id, structure.Id);
            Assert.AreEqual(otherStructure.Name, structure.Name);
            TestHelper.AssertAreEqualButNotSame(otherStructure.Location, structure.Location);
            Assert.AreEqual(otherStructure.StructureNormalOrientation, structure.StructureNormalOrientation);
            TestHelper.AssertAreEqualButNotSame(otherStructure.AllowedLevelIncreaseStorage, structure.AllowedLevelIncreaseStorage);
            TestHelper.AssertAreEqualButNotSame(otherStructure.AreaFlowApertures, structure.AreaFlowApertures);
            TestHelper.AssertAreEqualButNotSame(otherStructure.CriticalOvertoppingDischarge, structure.CriticalOvertoppingDischarge);
            Assert.AreEqual(otherStructure.FailureProbabilityOpenStructure, structure.FailureProbabilityOpenStructure);
            Assert.AreEqual(otherStructure.FailureProbabilityReparation, structure.FailureProbabilityReparation);
            Assert.AreEqual(otherStructure.IdenticalApertures, structure.IdenticalApertures);
            Assert.AreEqual(otherStructure.ProbabilityOrFrequencyOpenStructureBeforeFlooding, structure.ProbabilityOrFrequencyOpenStructureBeforeFlooding);
            TestHelper.AssertAreEqualButNotSame(otherStructure.FlowWidthAtBottomProtection, structure.FlowWidthAtBottomProtection);
            TestHelper.AssertAreEqualButNotSame(otherStructure.InsideWaterLevel, structure.InsideWaterLevel);
            TestHelper.AssertAreEqualButNotSame(otherStructure.LevelCrestStructureNotClosing, structure.LevelCrestStructureNotClosing);
            TestHelper.AssertAreEqualButNotSame(otherStructure.StorageStructureArea, structure.StorageStructureArea);
            TestHelper.AssertAreEqualButNotSame(otherStructure.ThresholdHeightOpenWeir, structure.ThresholdHeightOpenWeir);
            TestHelper.AssertAreEqualButNotSame(otherStructure.WidthFlowApertures, structure.WidthFlowApertures);
        }

        [Test]
        [TestCase(null)]
        [TestCase("string")]
        public void Equals_ToDifferentTypeOrNull_ReturnsFalse(object other)
        {
            // Setup
            ClosingStructure structure = new TestClosingStructure();

            // Call
            bool isEqual = structure.Equals(other);

            // Assert
            Assert.IsFalse(isEqual);
        }

        [Test]
        public void Equals_ToItself_ReturnsTrue()
        {
            // Setup
            ClosingStructure structure = new TestClosingStructure();

            // Call
            bool isEqual = structure.Equals(structure);

            // Assert
            Assert.IsTrue(isEqual);
        }

        [Test]
        public void Equals_TransitivePropertyAllPropertiesEqual_ReturnsTrue()
        {
            // Setup
            ClosingStructure structureX = new TestClosingStructure();
            ClosingStructure structureY = new TestClosingStructure();
            ClosingStructure structureZ = new TestClosingStructure();

            // Call
            bool isXEqualToY = structureX.Equals(structureY);
            bool isYEqualToZ = structureY.Equals(structureZ);
            bool isXEqualToZ = structureX.Equals(structureZ);

            // Assert
            Assert.IsTrue(isXEqualToY);
            Assert.IsTrue(isYEqualToZ);
            Assert.IsTrue(isXEqualToZ);
        }

        [Test]
        [TestCaseSource(typeof(ClosingStructurePermutationHelper),
            nameof(ClosingStructurePermutationHelper.DifferentClosingStructures),
            new object[]
            {
                "Equals",
                "ReturnsFalse"
            })]
        public void Equals_DifferentProperty_ReturnsFalse(ClosingStructure structure)
        {
            // Call
            bool isEqual = structure.Equals(new TestClosingStructure());

            // Assert
            Assert.IsFalse(isEqual);
        }

        [Test]
        public void GetHashCode_EqualStructures_ReturnsSameHashCode()
        {
            // Setup
            ClosingStructure structureOne = new TestClosingStructure();
            ClosingStructure structureTwo = new TestClosingStructure();

            // Call
            int hashCodeOne = structureOne.GetHashCode();
            int hashCodeTwo = structureTwo.GetHashCode();

            // Assert
            Assert.AreEqual(hashCodeOne, hashCodeTwo);
        }
    }
}