using System;
using System.Collections.Generic;

namespace UTIL
{
    public class ParParse
    {
        private List<(bool, string, string, bool, string, string)> Pars = new List<(bool, string, string, bool, string, string)>();
        private int _num = 0;
        private (bool, string, string, bool, string, string) nullitem = (false, null, null, false, null,null);
        public int NumofPar { get; }

        public ParParse()
        {
            AddPar("-h","--help",false, "Использование");
        }
        public (bool, string, string, bool, string, string) GetPar(UInt16 num)
        {
            if (Pars[num].Item1)
                return Pars[num];
            else
                return nullitem;
        }
        public (bool, string, string, bool, string, string) GetPar(string par)
        {
            for (int j = 0; j < _num; j++)
            {
                if ((par == Pars[j].Item2 || par == Pars[j].Item3) && Pars[j].Item1)
                    return Pars[j];
            }
            return nullitem;
        }
        public void AddPar(string shrt, string lng, Boolean key, string info)
        {
            Pars.Add((false, shrt, lng, key, "", info));
            _num = Pars.Count;
        }
        public int Parse(String[] arg)
        {
            int rez = 0;
            if (_num == 0)
                return -1;

            if (arg.Length == 0)
                return -1;

            for (int i = 0; i < arg.Length; i++)
            {
                for (int j = 0; j < _num; j++)
                {
                    if (arg[i] == Pars[j].Item2 || arg[i] == Pars[j].Item3)
                    {
                        (bool, string, string, bool, string, string) tmp = Pars[j];
                        if (Pars[j].Item4)
                        {
                            tmp.Item5 = arg[i + 1];
                        }
                        tmp.Item1 = true;
                        Pars[j] = tmp;
                        rez++;
                    }
                }
            }
            return rez;
        }
        public void help()
        {
            string s = "";
            for (int i = 0; i < _num; i++)
            {
                if (Pars[i].Item3 != "")
                    s += $" {Pars[i].Item2}|{Pars[i].Item3}";
                else
                    s += $" {Pars[i].Item2}";
            }
            Console.WriteLine($"Использование:\r\nGetVer3.exe{s}");
            for (int i = 0; i < _num; i++)
            {
                if (Pars[i].Item3 != "")
                    Console.WriteLine($"{Pars[i].Item2} {Pars[i].Item3}\t{Pars[i].Item6}");
                else
                    Console.WriteLine($"{Pars[i].Item2}\t{Pars[i].Item6}");
            }
        }
    }
}