// Copyright (C) Stichting Deltares 2016. 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.IO;
using System.Linq;
using Core.Common.Base.Geometry;
using Core.Common.TestUtil;
using NUnit.Framework;
using Rhino.Mocks;
using Ringtoets.Common.Data.AssessmentSection;
using Ringtoets.Common.Data.Contribution;
using Ringtoets.Common.Data.FailureMechanism;
using Ringtoets.HeightStructures.Data;
using Ringtoets.HeightStructures.Data.TestUtil;
using Ringtoets.HydraRing.Data;

namespace Ringtoets.HeightStructures.Service.Test
{
    [TestFixture]
    public class HeightStructuresCalculationServiceTest
    {
        private static readonly string testDataPath = TestHelper.GetTestDataPath(TestDataPath.Ringtoets.Integration.Service, "HydraRingCalculation");

        [Test]
        public void Validate_InvalidCalculationInputValidHydraulicBoundaryDatabase_LogsErrorAndReturnsFalse()
        {
            // Setup
            var mockRepository = new MockRepository();
            var assessmentSectionStub = CreateAssessmentSectionStub(new HeightStructuresFailureMechanism(), mockRepository);
            mockRepository.ReplayAll();

            assessmentSectionStub.HydraulicBoundaryDatabase.FilePath = Path.Combine(testDataPath, "HRD dutch coast south.sqlite");

            const string name = "<very nice name>";

            HeightStructuresCalculation calculation = new HeightStructuresCalculation
            {
                Name = name
            };

            // Call
            bool isValid = false;
            Action call = () => isValid = new HeightStructuresCalculationService().Validate(calculation, assessmentSectionStub);

            // Assert
            TestHelper.AssertLogMessages(call, messages =>
            {
                var msgs = messages.ToArray();
                Assert.AreEqual(3, msgs.Length);
                StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", name), msgs[0]);
                StringAssert.StartsWith("Validatie mislukt: Er is geen hydraulische randvoorwaardenlocatie geselecteerd.", msgs[1]);
                StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", name), msgs[2]);
            });
            Assert.IsFalse(isValid);

            mockRepository.VerifyAll();
        }

        [Test]
        public void Validate_ValidCalculationInputAndInvalidHydraulicBoundaryDatabase_ReturnsFalse()
        {
            // Setup
            var mockRepository = new MockRepository();
            var assessmentSectionStub = CreateAssessmentSectionStub(new HeightStructuresFailureMechanism(), mockRepository);
            mockRepository.ReplayAll();

            assessmentSectionStub.HydraulicBoundaryDatabase.FilePath = Path.Combine(testDataPath, "notexisting.sqlite");

            const string name = "<very nice name>";

            HeightStructuresCalculation calculation = new HeightStructuresCalculation
            {
                Name = name,
                InputParameters =
                {
                    HydraulicBoundaryLocation = new HydraulicBoundaryLocation(1, "name", 2, 2)
                }
            };

            // Call
            bool isValid = false;
            Action call = () => isValid = new HeightStructuresCalculationService().Validate(calculation, assessmentSectionStub);

            // Assert
            TestHelper.AssertLogMessages(call, messages =>
            {
                var msgs = messages.ToArray();
                Assert.AreEqual(3, msgs.Length);
                StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", name), msgs[0]);
                StringAssert.StartsWith("Validatie mislukt: Fout bij het lezen van bestand", msgs[1]);
                StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", name), msgs[2]);
            });
            Assert.IsFalse(isValid);

            mockRepository.VerifyAll();
        }

        [Test]
        public void Validate_ValidCalculationInputAndHydraulicBoundaryDatabase_ReturnsTrue()
        {
            // Setup
            var mockRepository = new MockRepository();
            var assessmentSectionStub = CreateAssessmentSectionStub(new HeightStructuresFailureMechanism(), mockRepository);
            mockRepository.ReplayAll();

            assessmentSectionStub.HydraulicBoundaryDatabase.FilePath = Path.Combine(testDataPath, "HRD dutch coast south.sqlite");

            const string name = "<very nice name>";

            HeightStructuresCalculation calculation = new HeightStructuresCalculation
            {
                Name = name,
                InputParameters =
                {
                    HydraulicBoundaryLocation = new HydraulicBoundaryLocation(1, "name", 2, 2)
                }
            };

            // Call
            bool isValid = false;
            Action call = () => isValid = new HeightStructuresCalculationService().Validate(calculation, assessmentSectionStub);

            // Assert
            TestHelper.AssertLogMessages(call, messages =>
            {
                var msgs = messages.ToArray();
                Assert.AreEqual(2, msgs.Length);
                StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", name), msgs[0]);
                StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", name), msgs[1]);
            });
            Assert.IsTrue(isValid);

            mockRepository.VerifyAll();
        }

        [Test]
        public void Calculate_ValidCalculation_LogStartAndEndAndReturnOutput()
        {
            // Setup
            var heightStructuresFailureMechanism = new HeightStructuresFailureMechanism();

            var mockRepository = new MockRepository();
            var assessmentSectionStub = CreateAssessmentSectionStub(heightStructuresFailureMechanism, mockRepository);
            mockRepository.ReplayAll();

            heightStructuresFailureMechanism.AddSection(new FailureMechanismSection("test section", new[]
            {
                new Point2D(0, 0),
                new Point2D(1, 1)
            }));

            var calculation = new TestHeightStructuresCalculation
            {
                InputParameters =
                {
                    HydraulicBoundaryLocation = assessmentSectionStub.HydraulicBoundaryDatabase.Locations.First(hl => hl.Id == 1300001)
                }
            };

            var failureMechanismSection = heightStructuresFailureMechanism.Sections.First();

            // Call
            Action call = () => new HeightStructuresCalculationService().Calculate(calculation,
                                                                                   assessmentSectionStub,
                                                                                   failureMechanismSection,
                                                                                   heightStructuresFailureMechanism.GeneralInput,
                                                                                   heightStructuresFailureMechanism.Contribution,
                                                                                   testDataPath);

            // Assert
            TestHelper.AssertLogMessages(call, messages =>
            {
                var msgs = messages.ToArray();
                Assert.AreEqual(3, msgs.Length);
                StringAssert.StartsWith(string.Format("Berekening van '{0}' gestart om: ", calculation.Name), msgs[0]);
                StringAssert.StartsWith("Hoogte kunstwerken berekeningsverslag. Klik op details voor meer informatie.", msgs[1]);
                StringAssert.StartsWith(string.Format("Berekening van '{0}' beëindigd om: ", calculation.Name), msgs[2]);
            });
            Assert.IsNotNull(calculation.Output);

            mockRepository.VerifyAll();
        }

        [Test]
        public void Calculate_InvalidCalculation_LogStartAndEndAndErrorMessageAndThrowsException()
        {
            // Setup
            var heightStructuresFailureMechanism = new HeightStructuresFailureMechanism();

            var mockRepository = new MockRepository();
            var assessmentSectionStub = CreateAssessmentSectionStub(heightStructuresFailureMechanism, mockRepository);
            mockRepository.ReplayAll();

            heightStructuresFailureMechanism.AddSection(new FailureMechanismSection("test section", new[]
            {
                new Point2D(0, 0),
                new Point2D(1, 1)
            }));

            var calculation = new HeightStructuresCalculation
            {
                InputParameters =
                {
                    HydraulicBoundaryLocation = new HydraulicBoundaryLocation(1, "test", 1, 1)
                }
            };

            var failureMechanismSection = heightStructuresFailureMechanism.Sections.First();
            var exception = false;

            // Call
            Action call = () =>
            {
                try
                {
                    new HeightStructuresCalculationService().Calculate(calculation,
                                                                       assessmentSectionStub,
                                                                       failureMechanismSection,
                                                                       heightStructuresFailureMechanism.GeneralInput,
                                                                       heightStructuresFailureMechanism.Contribution,
                                                                       testDataPath);
                }
                catch
                {
                    exception = true;
                }
            };

            // Assert
            TestHelper.AssertLogMessages(call, messages =>
            {
                var msgs = messages.ToArray();
                Assert.AreEqual(4, msgs.Length);
                StringAssert.StartsWith(string.Format("Berekening van '{0}' gestart om: ", calculation.Name), msgs[0]);
                StringAssert.StartsWith(string.Format("De berekening voor hoogte kunstwerk '{0}' is niet gelukt.", calculation.Name), msgs[1]);
                StringAssert.StartsWith("Hoogte kunstwerken berekeningsverslag. Klik op details voor meer informatie.", msgs[2]);
                StringAssert.StartsWith(string.Format("Berekening van '{0}' beëindigd om: ", calculation.Name), msgs[3]);
            });
            Assert.IsNull(calculation.Output);
            Assert.IsTrue(exception);

            mockRepository.VerifyAll();
        }

        private static IAssessmentSection CreateAssessmentSectionStub(IFailureMechanism failureMechanism, MockRepository mockRepository)
        {
            var assessmentSectionStub = mockRepository.Stub<IAssessmentSection>();
            assessmentSectionStub.Stub(a => a.Id).Return("21");
            assessmentSectionStub.Stub(a => a.FailureMechanismContribution).Return(new FailureMechanismContribution(new[]
            {
                failureMechanism
            }, 1, 2));
            assessmentSectionStub.HydraulicBoundaryDatabase = new HydraulicBoundaryDatabase
            {
                Locations =
                {
                    new HydraulicBoundaryLocation(1300001, String.Empty, 0, 0)
                }
            };
            return assessmentSectionStub;
        }
    }
}