// Copyright (C) Stichting Deltares 2020. All rights reserved.
//
// This file is part of the Layer On Slope Tool.
//
// The Layer On Slope Tool 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 NUnit.Framework;

namespace Deltares.LayerOnSlopeTool.LayerCreator.Tests
{
    [TestFixture]
    public class LayerCreatorTests
    {
        private readonly string importFolder = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles\\InputFilesSingleFile");
        private readonly string importFolderMulti = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles\\InputFilesMultiFiles");
        private readonly string importFolderIncorrectLocation = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles\\InputFilesSingleFileMissingDikeMaterial");
        private readonly string importFolderStiGeometryLeftOfSurfaceLine = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles\\InputFilesSingleFileStiGeometryLeftOfSurfaceLine");

        private readonly string outputFolder = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles\\OutputFilesSingleFile");
        private readonly string outputFolderMulti = Path.Combine(Directory.GetCurrentDirectory(), "TestFiles\\OutputFilesMultiFiles");
        
        private readonly string logFileName = "";

        [Test]
        public void TestLayerCreatorForSingleFileWithLocationNoDikeMaterial()
        {
            var layerCreator = new LayerCreator(importFolderIncorrectLocation, importFolderIncorrectLocation, outputFolder, logFileName);
            if (Directory.Exists(outputFolder))
            {
                Directory.Delete(outputFolder,true);
            }

            Directory.CreateDirectory(outputFolder);
            try
            {
                layerCreator.Execute();
            }
            catch (Exception e)
            {
                Assert.IsTrue(e.Message.Contains("Error(s) found, see log file"));
            }
            
            var resultFile = Path.Combine(outputFolder, "111-DIG-8986-01.2.sti");
            Assert.IsFalse(File.Exists(resultFile));
            var logFile = Path.Combine(outputFolder, layerCreator.LogFileName);
            Assert.IsTrue(File.Exists(logFile));
            var lines =File.ReadAllLines(logFile);
            Assert.IsTrue(lines.Length == 1);
            Assert.IsTrue(lines[0].Contains("Fatal error whilst reading locations"));
        }

        [Test]
        public void TestLayerCreatorForSingleFileWithStiGeometryLeftOfSurfaceLine()
        {
            var layerCreator = new LayerCreator(importFolderStiGeometryLeftOfSurfaceLine, importFolderStiGeometryLeftOfSurfaceLine, outputFolder, logFileName);
            if (Directory.Exists(outputFolder))
            {
                Directory.Delete(outputFolder, true);
            }

            Directory.CreateDirectory(outputFolder);
            try
            {
                layerCreator.Execute();
            }
            catch (Exception e)
            {
                Assert.IsTrue(e.Message.Contains("Error(s) found, see log file"));
            }
            var resultFile = Path.Combine(outputFolder, "111-DIG-8986-01.2.sti");
            Assert.IsFalse(File.Exists(resultFile));
            var logFile = Path.Combine(outputFolder, layerCreator.LogFileName);
            Assert.IsTrue(File.Exists(logFile));
            var lines = File.ReadAllLines(logFile);
            Assert.IsTrue(lines.Length == 2);
            Assert.IsTrue(lines[0].Contains("Handling location"));
            Assert.IsTrue(lines[1].Contains("Geometry is completely left of Surface Line"));
        }

        [Test]
        public void TestLayerCreatorForSingleFileWithCorrectData()
        {
            var layerCreator = new LayerCreator(importFolder, importFolder, outputFolder, logFileName);
            if (Directory.Exists(outputFolder))
            {
                Directory.Delete(outputFolder, true);
            }

            Directory.CreateDirectory(outputFolder);
            layerCreator.Execute();
            var resultFile = Path.Combine(outputFolder, "111-DIG-8986-01.2-dp 46_111-DIG-8986-01.2.sti");
            Assert.IsTrue(File.Exists(resultFile));
            var logFile = Path.Combine(outputFolder, layerCreator.LogFileName);
            Assert.IsTrue(File.Exists(logFile));
            var lines = File.ReadAllLines(logFile);
            Assert.IsTrue(lines.Length == 1);
            Assert.IsTrue(lines[0].Contains("Handling location"));
        }

        [Test]
        public void TestLayerCreatorForMultipleFilesWithCorrectData()
        {
            var layerCreator = new LayerCreator(importFolderMulti, importFolderMulti, outputFolderMulti, logFileName);
            if (Directory.Exists(outputFolderMulti))
            {
                Directory.Delete(outputFolderMulti, true);
            }

            Directory.CreateDirectory(outputFolderMulti);
            layerCreator.Execute();
            var resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-01.2-dp 46_111-DIG-8986-01.2.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-05.1-dp 07_111-DIG-8986-05.1.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-05.2-dp 10_111-DIG-8986-05.2.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-06.2-dp 19_111-DIG-8986-06.2.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-07.1-dp 26_111-DIG-8986-07.1.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-07.1-dp 30_111-DIG-8986-07.1a.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-07.2-dp 32_111-DIG-8986-07.2.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-07.3-dp 36_111-DIG-8986-07.3.sti");
            Assert.IsTrue(File.Exists(resultFile));
            resultFile = Path.Combine(outputFolderMulti, "111-DIG-8986-07.4-dp 43_111-DIG-8986-07.4.sti");
            Assert.IsTrue(File.Exists(resultFile));

            var logFile = Path.Combine(outputFolderMulti, layerCreator.LogFileName);
            Assert.IsTrue(File.Exists(logFile));
            var lines = File.ReadAllLines(logFile);
            Assert.IsTrue(lines.Length == 9);
            Assert.IsTrue(lines[0].Contains("Handling location"));
            Assert.IsTrue(lines[8].Contains("Handling location"));
        }
    }
}