// 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 System.Linq;
using Core.Common.Base.Data;
using Core.Common.Base.Geometry;
using Core.Common.TestUtil;
using NUnit.Framework;
using Ringtoets.Common.Data.Calculation;
using Ringtoets.Common.Data.FailureMechanism;
using Ringtoets.Common.Forms.TypeConverters;
using Ringtoets.Common.Forms.Views;
using Ringtoets.MacroStabilityInwards.Data;
using Ringtoets.MacroStabilityInwards.Data.TestUtil;
using Ringtoets.MacroStabilityInwards.Forms.Views;

namespace Ringtoets.MacroStabilityInwards.Forms.Test.Views
{
    [TestFixture]
    public class MacroStabilityInwardsFailureMechanismSectionResultRowTest
    {
        [Test]
        public void Constructor_WithParameters_ExpectedValues()
        {
            // Setup
            FailureMechanismSection section = CreateSection();
            var result = new MacroStabilityInwardsFailureMechanismSectionResult(section);

            // Call
            var row = new MacroStabilityInwardsFailureMechanismSectionResultRow(result, Enumerable.Empty<MacroStabilityInwardsCalculationScenario>());

            // Assert
            Assert.IsInstanceOf<FailureMechanismSectionResultRow<MacroStabilityInwardsFailureMechanismSectionResult>>(row);
            Assert.AreEqual(result.GetAssessmentLayerTwoA(Enumerable.Empty<MacroStabilityInwardsCalculationScenario>()), row.AssessmentLayerTwoA);
            TestHelper.AssertTypeConverter<MacroStabilityInwardsFailureMechanismSectionResultRow, NoProbabilityValueDoubleConverter>(
                nameof(MacroStabilityInwardsFailureMechanismSectionResultRow.AssessmentLayerTwoA));
            TestHelper.AssertTypeConverter<MacroStabilityInwardsFailureMechanismSectionResultRow, NoProbabilityValueRoundedDoubleConverter>(
                nameof(MacroStabilityInwardsFailureMechanismSectionResultRow.AssessmentLayerThree));
        }

        [Test]
        public void Constructor_CalculationsNull_ThrowsArgumentNullException()
        {
            // Setup
            FailureMechanismSection section = CreateSection();
            var result = new MacroStabilityInwardsFailureMechanismSectionResult(section);

            // Call
            TestDelegate test = () => new MacroStabilityInwardsFailureMechanismSectionResultRow(result, null);

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

        [Test]
        public void AssessmentLayerTwoA_NoScenarios_ReturnNaN()
        {
            // Setup
            FailureMechanismSection section = CreateSection();
            var result = new MacroStabilityInwardsFailureMechanismSectionResult(section);

            // Call
            var row = new MacroStabilityInwardsFailureMechanismSectionResultRow(result, Enumerable.Empty<MacroStabilityInwardsCalculationScenario>());

            // Assert
            Assert.IsNaN(row.AssessmentLayerTwoA);
        }

        [Test]
        [TestCase(0.2, 0.8 - 1e5)]
        [TestCase(0.0, 0.5)]
        [TestCase(0.3, 0.7 + 1e-5)]
        [TestCase(-5, -8)]
        [TestCase(13, 2)]
        public void AssessmentLayerTwoA_RelevantScenarioContributionDontAddUpTo1_ReturnNaN(double contributionA, double contributionB)
        {
            // Setup
            FailureMechanismSection section = CreateSection();

            MacroStabilityInwardsCalculationScenario scenarioA = MacroStabilityInwardsCalculationScenarioFactory.CreateNotCalculatedMacroStabilityInwardsCalculationScenario(section);
            MacroStabilityInwardsCalculationScenario scenarioB = MacroStabilityInwardsCalculationScenarioFactory.CreateNotCalculatedMacroStabilityInwardsCalculationScenario(section);
            scenarioA.Contribution = (RoundedDouble) contributionA;
            scenarioB.Contribution = (RoundedDouble) contributionB;

            var result = new MacroStabilityInwardsFailureMechanismSectionResult(section);
            var row = new MacroStabilityInwardsFailureMechanismSectionResultRow(result, new[]
            {
                scenarioA,
                scenarioB
            });

            // Call
            double assessmentLayerTwoA = row.AssessmentLayerTwoA;

            // Assert
            Assert.IsNaN(assessmentLayerTwoA);
        }

        [Test]
        [TestCase(CalculationScenarioStatus.NotCalculated)]
        [TestCase(CalculationScenarioStatus.Failed)]
        public void AssessmentLayerTwoA_NoRelevantScenariosDone_ReturnNaN(CalculationScenarioStatus status)
        {
            // Setup
            FailureMechanismSection section = CreateSection();

            MacroStabilityInwardsCalculationScenario scenario = status.Equals(CalculationScenarioStatus.NotCalculated)
                                                                    ? MacroStabilityInwardsCalculationScenarioFactory.CreateNotCalculatedMacroStabilityInwardsCalculationScenario(section)
                                                                    : MacroStabilityInwardsCalculationScenarioFactory.CreateFailedMacroStabilityInwardsCalculationScenario(section);

            var result = new MacroStabilityInwardsFailureMechanismSectionResult(section);
            var row = new MacroStabilityInwardsFailureMechanismSectionResultRow(result, new[]
            {
                scenario
            });

            // Call
            double assessmentLayerTwoA = row.AssessmentLayerTwoA;

            // Assert
            Assert.IsNaN(assessmentLayerTwoA);
        }

        [Test]
        public void AssessmentLayerTwoA_RelevantScenariosDone_ResultOfSection()
        {
            // Setup
            FailureMechanismSection section = CreateSection();
            MacroStabilityInwardsCalculationScenario scenario = MacroStabilityInwardsCalculationScenarioFactory.CreateMacroStabilityInwardsCalculationScenario(0.2, section);
            scenario.Contribution = (RoundedDouble) 1.0;

            var result = new MacroStabilityInwardsFailureMechanismSectionResult(section);
            var row = new MacroStabilityInwardsFailureMechanismSectionResultRow(result, new[]
            {
                scenario
            });

            // Call
            double assessmentLayerTwoA = row.AssessmentLayerTwoA;

            // Assert
            double expected = result.GetAssessmentLayerTwoA(new[]
            {
                scenario
            });
            Assert.AreEqual(expected, assessmentLayerTwoA, 1e-6);
        }

        [Test]
        public void AssessmentLayerThree_ValueSet_ReturnExpectedValue()
        {
            // Setup
            var random = new Random(21);
            RoundedDouble assessmentLayerThree = random.NextRoundedDouble();

            var sectionResult = new MacroStabilityInwardsFailureMechanismSectionResult(CreateSection());
            var row = new MacroStabilityInwardsFailureMechanismSectionResultRow(sectionResult,
                                                                                Enumerable.Empty<MacroStabilityInwardsCalculationScenario>());

            // Call
            row.AssessmentLayerThree = assessmentLayerThree;

            // Assert
            Assert.AreEqual(assessmentLayerThree, sectionResult.AssessmentLayerThree);
        }

        private static FailureMechanismSection CreateSection()
        {
            return new FailureMechanismSection("name", new[]
            {
                new Point2D(0, 0),
                new Point2D(1, 0)
            });
        }
    }
}