// 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.Collections.Generic;
using System.Linq;
using Core.Common.Base.Geometry;
using NUnit.Framework;
using Ringtoets.MacroStabilityInwards.Primitives.TestUtil;

namespace Ringtoets.MacroStabilityInwards.Primitives.Test
{
    public class MacroStabilityInwardsWaternetTest
    {
        [Test]
        public void Constructor_PhreaticLinesNull_ThrowsArgumentNullException()
        {
            // Call
            TestDelegate call = () => new MacroStabilityInwardsWaternet(null, Enumerable.Empty<MacroStabilityInwardsWaternetLine>());

            // Assert
            var exception = Assert.Throws<ArgumentNullException>(call);
            Assert.AreEqual("phreaticLines", exception.ParamName);
        }

        [Test]
        public void Constructor_WaternetLinesNull_ThrowsArgumentNullException()
        {
            // Call
            TestDelegate call = () => new MacroStabilityInwardsWaternet(Enumerable.Empty<MacroStabilityInwardsPhreaticLine>(), null);

            // Assert
            var exception = Assert.Throws<ArgumentNullException>(call);
            Assert.AreEqual("waternetLines", exception.ParamName);
        }

        [Test]
        public void Constructor_ExpectedValues()
        {
            // Setup
            var phreaticLine = new MacroStabilityInwardsPhreaticLine("Phreatic Line", Enumerable.Empty<Point2D>());
            var waternetLine = new MacroStabilityInwardsWaternetLine("Waternet Line", Enumerable.Empty<Point2D>(), phreaticLine);

            // Call
            var waternet = new MacroStabilityInwardsWaternet(new[]
            {
                phreaticLine
            }, new[]
            {
                waternetLine
            });

            // Assert
            Assert.AreSame(phreaticLine, waternet.PhreaticLines.Single());
            Assert.AreSame(waternetLine, waternet.WaternetLines.Single());
        }

        [Test]
        [TestCase(null)]
        [TestCase("string")]
        public void Equals_ToDifferentTypeOrNull_ReturnsFalse(object other)
        {
            // Setup
            MacroStabilityInwardsWaternet waternet = CreateWaternet();

            // Call
            bool isEqualToDifferentObject = waternet.Equals(other);

            // Assert
            Assert.IsFalse(isEqualToDifferentObject);
        }

        [Test]
        public void Equals_AllPropertiesEqual_ReturnsTrue()
        {
            // Setup
            MacroStabilityInwardsWaternet waternetX = CreateWaternet();
            MacroStabilityInwardsWaternet waternetY = CreateWaternet();

            // Call
            bool isXEqualToY = waternetX.Equals(waternetY);
            bool isYEqualToZ = waternetY.Equals(waternetX);

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

        [Test]
        [TestCaseSource(nameof(GetWaternetCombinations))]
        public void Equals_DifferentProperty_ReturnsFalse(MacroStabilityInwardsWaternet waternet,
                                                          MacroStabilityInwardsWaternet otherWaternet)
        {
            // Call
            bool isWaternetEqualToOther = waternet.Equals(otherWaternet);
            bool isOtherEqualToWaternet = otherWaternet.Equals(waternet);

            // Assert
            Assert.IsFalse(isWaternetEqualToOther);
            Assert.IsFalse(isOtherEqualToWaternet);
        }

        [Test]
        public void GetHashCode_EqualWaternet_ReturnsSameHashCode()
        {
            // Setup
            MacroStabilityInwardsWaternet waternetLineX = CreateWaternet();
            MacroStabilityInwardsWaternet waternetLineY = CreateWaternet();

            // Call
            int hashCodeOne = waternetLineX.GetHashCode();
            int hashCodeTwo = waternetLineY.GetHashCode();

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

        private static IEnumerable<TestCaseData> GetWaternetCombinations()
        {
            yield return new TestCaseData(
                CreateWaternet(),
                new MacroStabilityInwardsWaternet(
                    new[]
                    {
                        new MacroStabilityInwardsPhreaticLine("Test", new Point2D[0])
                    },
                    new MacroStabilityInwardsWaternetLine[]
                    {
                        new TestMacroStabilityInwardsWaternetLine()
                    })).SetName("Other phreatic line");

            yield return new TestCaseData(
                CreateWaternet(),
                new MacroStabilityInwardsWaternet(
                    new[]
                    {
                        new TestMacroStabilityInwardsPhreaticLine(),
                        new TestMacroStabilityInwardsPhreaticLine()
                    },
                    new MacroStabilityInwardsWaternetLine[]
                    {
                        new TestMacroStabilityInwardsWaternetLine()
                    })).SetName("Other phreatic line count");

            yield return new TestCaseData(
                CreateWaternet(),
                new MacroStabilityInwardsWaternet(
                    new[]
                    {
                        new TestMacroStabilityInwardsPhreaticLine()
                    },
                    new[]
                    {
                        new MacroStabilityInwardsWaternetLine("Test", new Point2D[0], new TestMacroStabilityInwardsPhreaticLine())
                    })).SetName("Other waternet line");

            yield return new TestCaseData(
                CreateWaternet(),
                new MacroStabilityInwardsWaternet(
                    new[]
                    {
                        new TestMacroStabilityInwardsPhreaticLine()
                    },
                    new MacroStabilityInwardsWaternetLine[]
                    {
                        new TestMacroStabilityInwardsWaternetLine(),
                        new TestMacroStabilityInwardsWaternetLine()
                    })).SetName("Other waternet line count");
        }

        private static MacroStabilityInwardsWaternet CreateWaternet()
        {
            return new MacroStabilityInwardsWaternet(
                new MacroStabilityInwardsPhreaticLine[]
                {
                    new TestMacroStabilityInwardsPhreaticLine()
                },
                new MacroStabilityInwardsWaternetLine[]
                {
                    new TestMacroStabilityInwardsWaternetLine()
                });
        }
    }
}