using System;

using CommandLine;
using CommandLine.Text;
using Deltares.Standard;
using Deltares.Standard.Reflection;

namespace Deltares.Dam.Tools.CsvToDamxConverter
{
    internal class CommandOptions : CommandLineOptionsBase
    {        
        [Option("i", "inputDir", Required = true, HelpText = "Input dike data folder to read. (CSV source files)")]
        public string InputDataDirectory { get; set; }

        [Option("o", "outputDir", Required = false, DefaultValue = "CsvToDamxOutput", HelpText = "Output folder to save/copy data to. Default value: CsvToDamxOutput")]
        public string OuputDataDirectory { get; set; }

        [Option("d", "damxFileName", Required = false, DefaultValue = "input.damx", HelpText = "Name of the DAMX file (without a path). Default value: input.damx")]
        public string DamXFileName { get; set; }

        [Option("s", "sensorDataFileName", Required = false, DefaultValue = "sensordata.xls", HelpText = "Name of the sensor data file. Default value: sensordata.xls")]
        public string SensorDataFileName { get; set; }


        readonly AssemblyInfoHelper assemblyInfoHelper = new AssemblyInfoHelper(typeof(Program));
        private AssemblyInfoHelper ThisAssembly
        {
            get
            {                
                return assemblyInfoHelper;
            }
        }

        [HelpOption]			
        public string GetUsage()
        {
            var help = new HelpText
                       {
                           Heading = new HeadingInfo(ThisAssembly.Title, ThisAssembly.AssemblyVersion),					
                           Copyright = new CopyrightInfo(ThisAssembly.Company, 2012),					
                           AdditionalNewLineAfterOption = true,					
                           AddDashesToOption = true
                       };	
			
            this.HandleParsingErrorsInHelp(help);	
			
            //help.AddPreOptionsLine("<<license details here.>>");				
            help.AddPreOptionsLine("Usage: CsvToDamXConverter -i DikeCSVInputFolderName [-o OutputFolderName (default=CsvToDamXOutput)] [-d DamXFileName (default=input.damx)] [-s SensorDataFileName (default=sensordata.xls)]");				
            help.AddOptions(this);	
			
            return help;
        }

        void HandleParsingErrorsInHelp(HelpText help)
        {
            if (this.LastPostParsingState.Errors.Count > 0)
            {
                var errors = help.RenderParsingErrorsText(this, 2); // indent with two spaces					
                if (!string.IsNullOrEmpty(errors))
                {
                    help.AddPreOptionsLine(string.Concat(Environment.NewLine, "ERROR(S):"));
                    help.AddPreOptionsLine(errors);
                }
            }
        }

    }
}