// Copyright (C) Stichting Deltares 2025. All rights reserved.
// 
// This file is part of the application DAM - UI.
// 
// DAM - UI 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.Globalization;
using System.IO;
using System.Threading;
using Deltares.Dam.Data.Importers;
using Deltares.Standard.IO;
using Deltares.Standard.Language;
using LumenWorks.Framework.IO.Csv;

namespace Deltares.Dam.Data.CsvImporters;

public class CsvImporterSoilProfilesException : Exception
{
    public CsvImporterSoilProfilesException(string message)
        : base(message) {}
}

public class CsvImporterSoilProfiles
{
    public CsvImporterSoilProfiles(string fileName)
    {
        ErrorMessages.Clear();
        ThrowHelper.ThrowIfStringArgumentNullOrEmpty(fileName, StringResourceNames.CsvFileNotValid);
        ThrowHelper.ThrowIfFileNotExist(fileName, StringResourceNames.CsvFileNotFound);

        CultureInfo oldCultureInfo = Thread.CurrentThread.CurrentCulture;
        try
        {
            Thread.CurrentThread.CurrentCulture = CsvReaderUtilities.DetermineCultureForFile(fileName);
            using (var csv = new CsvReader(new StreamReader(fileName), true, ';'))
            {
                string[] headers = CsvImporterHelper.GetFieldHeaders(this, csv);
                // The definition of the csv contains one extra column (soiltype) which is now obsolete. 
                // So number of columns may be 4 or 5.
                if ((headers.Length < 4) || (headers.Length > 5))
                {
                    string csvHeaderError = LocalizationManager.GetTranslatedText(GetType(), "csvHeaderError");
                    throw new CsvImporterSoilProfilesException($"{fileName} : {csvHeaderError}");
                }

                const string fieldsoilprofile_id = "soilprofile_id";
                int colIndexSoilProfileId = CsvReaderUtilities.GetHeaderIndexByString(headers, fieldsoilprofile_id);
                CheckColumn(colIndexSoilProfileId, fileName, fieldsoilprofile_id);

                const string fieldtop_level = "top_level";
                int colIndexTopLevel = CsvReaderUtilities.GetHeaderIndexByString(headers, fieldtop_level);
                CheckColumn(colIndexTopLevel, fileName, fieldtop_level);

                const string fieldsoil_name = "soil_name";
                int colIndexSoilName = CsvReaderUtilities.GetHeaderIndexByString(headers, fieldsoil_name);
                CheckColumn(colIndexSoilName, fileName, fieldsoil_name);

                int colIndexIsAquifer = CsvReaderUtilities.GetHeaderIndexByString(headers, CsvColumnNames.IsAquiferColumnName);
                CheckColumn(colIndexIsAquifer, fileName, CsvColumnNames.IsAquiferColumnName);

                var index = 1;
                while (csv.ReadNextRecord())
                {
                    var soilProfile = new SoilProfileRecord();
                    int colIndex = -1; // Keep track of column for error message
                    try
                    {
                        soilProfile.SoilProfileRecordId = index;
                        index++;

                        // Required columns
                        colIndex = colIndexSoilProfileId;
                        soilProfile.SoilProfileId = csv[colIndexSoilProfileId];
                        colIndex = colIndexTopLevel;
                        soilProfile.TopLevel = Convert.ToDouble(csv[colIndexTopLevel]);
                        colIndex = colIndexSoilName;
                        soilProfile.SoilName = csv[colIndexSoilName];
                        colIndex = colIndexIsAquifer;
                        soilProfile.IsAquifer = Convert.ToBoolean(csv[colIndex]);

                        ImportedItems.Add(soilProfile);
                    }
                    catch (Exception e)
                    {
                        string csvSoilProfileError = string.Format(LocalizationManager.GetTranslatedText(GetType(), "csvSoilProfileError"), soilProfile.SoilProfileId, colIndex + 1);
                        ErrorMessages.Add($"Record {index} : {csvSoilProfileError + e.Message}");
                    }
                }
            }
        }
        finally
        {
            Thread.CurrentThread.CurrentCulture = oldCultureInfo;
        }
    }

    public List<SoilProfileRecord> ImportedItems { get; } = new();

    public List<string> ErrorMessages { get; set; } = new();

    private void CheckColumn(int index, string fileName, string fieldName)
    {
        if (index < 0)
        {
            string csvHeaderFieldError = LocalizationManager.GetTranslatedText(GetType(), "csvHeaderFieldError");
            throw new CsvImporterSoilProfilesException($"{fileName} : {csvHeaderFieldError} {fieldName}");
        }
    }

    public class SoilProfileRecord
    {
        public int SoilProfileRecordId { get; set; }
        public string SoilProfileId { get; set; }
        public double TopLevel { get; set; }
        public string SoilName { get; set; }
        public bool IsAquifer { get; set; }
    }
}