using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

public class Config
{
    public const string CONFIGFILE = "CONFIG";
    private const char separator = '=';
    private const string comment = "!";
    private const char connchar = '§';
    public string key_prefix { get; set; }
    private int _cores = 0;
    private bool _singlecore = false;
    private string _defaultpath = System.IO.Path.Combine(Environment.CurrentDirectory, CONFIGFILE);
    public int Cores => _cores;
    public bool Singlecore => _singlecore;
    public List<KeyValue> KeyValues { get; private set; }
    public string FileConfig { get; set; }
    public Config()
    {
        //_cores = Environment.ProcessorCount;
        //if (_cores > 1) _singlecore = false;
        if (File.Exists(_defaultpath))
        {
            FileConfig = _defaultpath;
            key_prefix = "";
            Read();
        }
    }
    public Config(string fileconfig, string prx = "") : this()
    {
        if (File.Exists(fileconfig) && fileconfig != _defaultpath)
        {
            FileConfig = fileconfig;
            key_prefix = prx;
            Read();
        }
    }
    public void Read()
    {
        KeyValues = AnalizeConfig(this.FileConfig, this.key_prefix);
    }

    public List<KeyValue> AnalizeConfig(string configfile, string prefix = "")
    {
        List<KeyValue> ret = new List<KeyValue>();
        if (configfile == null || configfile == string.Empty) return ret;
        if (!File.Exists(configfile))
            return null;

        this.FileConfig = configfile;
        this.key_prefix = prefix;

        var _content = File.ReadAllLines(configfile);
        if (_content.Length > 0)
        {
            foreach (var element in _content)
            {
                //devo escludere i commenti e le 
                //righe vuote

                /// se la linea comincia con ||| non leggo piu
                string linea = element.Trim();

                if (linea.StartsWith("|||"))
                    break;
                else
                {
                    if (linea != string.Empty && !linea.StartsWith(comment))
                    {
                        var elements = linea.Split(separator);
                        string k = string.Empty;
                        string v = string.Empty;

                        if (elements.Length > 0)
                        {
                            k = elements[0];
                        }
                        if (elements.Length > 1)
                        {
                            v = elements[1];
                        }

                        v = v.Replace(connchar, separator);
                        ret.Add(new KeyValue(prefix + k, v));
                    }
                }
            }
        }
        return ret;
    }
}