// Copyright (C) Stichting Deltares 2019. All rights reserved.
//
// This file is part of the Dam Macrostability Kernel.
//
// The Dam Macrostability Kernel 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;
using System.IO;
using System.Linq;
using Deltares.DamMacroStability.Calculator;
using NUnit.Framework;

namespace Deltares.DamMacroStability.CalculatorTests
{
    [TestFixture]
    public class StabilityCalculatorTests
    {
        private const string TestCalcFolder = @"..\..\Tests\Files\Calc";
        private const string TestFile1D = @"Test1D.sti";
        private const string TestFile2D = @"Test2D.sti";

        [Test]
        public void TestCalculateStabilitySafetyFactorGeometry1D()
        {
            // Relative paths in ini file do not work yet in DGeoStability 16.2. This is fixed in 18.1.
            var absoluteFolder = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), TestCalcFolder));
            var inputFileName = Path.Combine(absoluteFolder, TestFile1D);

            TestHelper.DeleteOutputFiles(inputFileName);
            var stabilityCalculator = new StabilityCalculator();
            stabilityCalculator.ProjectName = inputFileName;
            stabilityCalculator.Calculate();
            var results = stabilityCalculator.GetResults();
            Assert.AreEqual(1, results.Count);
            Assert.AreEqual(1.486, results[0].Zone1.SafetyFactor, 0.001);
            TestHelper.AssertOutputFiles(inputFileName);
        }

        [Test]
        public void TestCalculateStabilitySafetyFactorGeometry2D()
        {
            // Relative paths in ini file do not work yet in DGeoStability 16.2. This is fixed in 18.1.
            var absoluteFolder = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), TestCalcFolder));
            var inputFileName = Path.Combine(absoluteFolder, TestFile2D);

            TestHelper.DeleteOutputFiles(inputFileName);
            var stabilityCalculator = new StabilityCalculator();
            stabilityCalculator.ProjectName = inputFileName;
            stabilityCalculator.Calculate();
            var results = stabilityCalculator.GetResults();
            Assert.AreEqual(1, results.Count);
            Assert.AreEqual(1.557, results[0].Zone1.SafetyFactor, 0.001);
            TestHelper.AssertOutputFiles(inputFileName);
        }

        [Test]
        public void TestCalculateStabilitySafetyFactorForFolder()
        {
            // Relative paths in ini file do not work yet in DGeoStability 16.2. This is fixed in 18.1.
            var absoluteFolder = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), TestCalcFolder));

            var fileName1 = Path.Combine(absoluteFolder, TestFile1D);
            TestHelper.DeleteOutputFiles(fileName1);

            var fileName2 = Path.Combine(absoluteFolder, TestFile2D);
            TestHelper.DeleteOutputFiles(fileName2);

            var stabilityCalculator = new StabilityCalculator();
            stabilityCalculator.ProjectName = absoluteFolder;
            stabilityCalculator.Calculate();
            var results = stabilityCalculator.GetResults();

            Assert.AreEqual(2, results.Count);
            Assert.AreEqual(1.486, results.First(r => r.CalculationName == "Test1D").Zone1.SafetyFactor, 0.001);
            Assert.AreEqual(1.557, results.First(r => r.CalculationName == "Test2D").Zone1.SafetyFactor, 0.001);

            TestHelper.AssertOutputFiles(fileName1);
            TestHelper.AssertOutputFiles(fileName2);
        }

        [Test]
        [SetUICulture("nl-NL")]
        public void TestRunWithDifferentExePath()
        {
            // Relative paths in ini file do not work yet in DGeoStability 16.2. This is fixed in 18.1.
            var absoluteFolder = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), TestCalcFolder));
            var inputFileName = Path.Combine(absoluteFolder, TestFile1D);

            var stabilityCalculator = new StabilityCalculator();
            stabilityCalculator.ProjectName = inputFileName;
            stabilityCalculator.DGeoStabilityExePath = @".\DGeoStabilityNew.exe";
            try
            {
                stabilityCalculator.Calculate();
            }
            catch (Exception e)
            {
                Assert.IsTrue(e.Message.Contains(string.Format(
                    "Er is een fout opgetreden tijdens de berekening van de stabiliteitsfactor voor '{0}'", inputFileName)));
                Assert.IsTrue(e.InnerException.Message.Contains("Executable voor stabiliteitsberekening niet gevonden op '.\\DGeoStabilityNew.exe'"));
            }
        }

        [Test]
        [SetUICulture("nl-NL")]
        public void TestThrowIfSomethingGoesWrongDuringCalculation()
        {
            const string inputFileName = "NonExistingProject.sti";
            try
            {
                var stabilityCalculator = new StabilityCalculator();
                stabilityCalculator.ProjectName = inputFileName;
                stabilityCalculator.Calculate();
            }
            catch (Exception e)
            {
                Assert.IsTrue(e.Message.Contains(string.Format(
                    "Er is een fout opgetreden tijdens de berekening van de stabiliteitsfactor voor '{0}'", inputFileName)));
                Assert.IsTrue(e.InnerException.Message.Contains("Project 'NonExistingProject.sti' niet gevonden"));
            }
        }

    }
}