// Copyright (C) Stichting Deltares 2024. 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 Deltares.Dam.Data;

namespace GeoXY2LatLong
{
    class Program
    {
        static void Main(string[] args)
        {
            var arguments = new CommandLineArgumentParser(args);

            var sourceFile = "";
            var destFile = "output.csv";
            var xpos = 3;
            var ypos = 4;

            if (arguments.Contains("help") || arguments.Contains("?"))
            {
                Console.WriteLine("GeoXY to lat long converter");
                Console.WriteLine("Usage: geoxy2latlong.exe /sourceFile:locations.csv /outFile:locations_pluslatlong.csv /skipFirstLine /xpos:3 /ypos:4");
                return;
            }

            if (arguments.Contains("sourceFile") || arguments.Contains("s"))
            {
                sourceFile = arguments["sourceFile"] ?? arguments["s"];

                if (!sourceFile.EndsWith("csv"))
                {
                    throw new ArgumentException("The file is not supported");
                }
            }

            if (arguments.Contains("outFile") || arguments.Contains("o"))
            {
                destFile = arguments["outFile"] ?? arguments["d"];
                if (destFile == sourceFile)
                {
                    throw new ArgumentException("The output file name cannot be the same as the source file name");
                }
            }

            bool skipFirstLine = arguments.Contains("skipFirstLine") || arguments.Contains("sfl");

            if (arguments.Contains("xpos"))
            {
                xpos = int.Parse(arguments["xpos"]);
            }

            if (arguments.Contains("ypos"))
            {
                ypos = int.Parse(arguments["ypos"]);
            }

            string[] lines = File.ReadAllLines(sourceFile);
            using (var sw = new StreamWriter(destFile, false))
            {
                int start = skipFirstLine ? 1 : 0;
                for (int i = start; i < lines.Length; i++)
                {
                    var values = new List<string>(lines[i].Split(';'));
                    double x = double.Parse(values[xpos], NumberStyles.Any, CultureInfo.InvariantCulture);
                    double y = double.Parse(values[ypos], NumberStyles.Any, CultureInfo.InvariantCulture);
                    GeometryPoint point = RdLatLngConverter.RdToLatLng(x, y);
                    values.Add(point.X.ToString());
                    values.Add(point.Y.ToString());
                    string newLine = string.Join(";", values.ToArray());
                    Console.WriteLine(newLine);
                    sw.WriteLine(newLine);
                }
            }
        }
    }
}