// Copyright (C) Stichting Deltares 2025. 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.Collections.Generic;
using Deltares.DamEngine.Data.Geotechnics;
using NUnit.Framework;

namespace Deltares.DamEngine.Data.Tests.Geotechnics;

[TestFixture]
public class SigmaTauCurveTests
{
    [Test]
    public void GivenSigmaTauCurveWhenInitializingPointsThenPointsAreInitializedCorrectly()
    {
        // Given
        var curve = new SigmaTauCurve();

        // When
        List<SigmaTauPoint> points = curve.Points;

        // Then
        Assert.That(points, Is.Not.Null);
        Assert.That(points, Is.InstanceOf<List<SigmaTauPoint>>());
        Assert.That(points.Count, Is.EqualTo(0));
    }

    [Test]
    public void GivenSigmaTauCurveWhenAddingPointThenPointIsAddedCorrectly()
    {
        // Given
        var curve = new SigmaTauCurve();
        var point = new SigmaTauPoint(1.0, 2.0);

        // When
        curve.Points.Add(point);

        // Then
        Assert.That(curve.Points.Count, Is.EqualTo(1));
        Assert.That(curve.Points[0], Is.EqualTo(point));
    }

    [Test]
    public void GivenTwoSigmaTauCurvesWhenAssigningThenPropertiesAreAssignedCorrectly()
    {
        // Given
        SigmaTauCurve sourceCurve = new();
        sourceCurve.Points.Add(new SigmaTauPoint(1.0, 2.0));
        sourceCurve.Points.Add(new SigmaTauPoint(3.0, 4.0));

        var targetCurve = new SigmaTauCurve();

        // When
        targetCurve.Assign(sourceCurve);

        // Then
        Assert.That(targetCurve.Points.Count, Is.EqualTo(sourceCurve.Points.Count));
        for (var i = 0; i < sourceCurve.Points.Count; i++)
        {
            Assert.That(targetCurve.Points[i].Sigma, Is.EqualTo(sourceCurve.Points[i].Sigma));
            Assert.That(targetCurve.Points[i].Tau, Is.EqualTo(sourceCurve.Points[i].Tau));
        }
    }
}