using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Text.RegularExpressions;

namespace P5_sav2
{
    class Program
    {
        static void Main(string[] args)
        {
            const string CFd = @"Data.txt";
            const string CFr = @"Results.txt";
            const string CFa = @"Analysis.txt";
            Apdoroti(CFd, CFr, CFa);
        }

        static void Apdoroti(string fv, string fvr, string fa)
        {
            string[] lines = File.ReadAllLines(fv, Encoding.GetEncoding(1257));
            using (var fr = File.CreateText(fvr))
            {
                using (var far = File.CreateText(fa))
                {
                    BeKomentaru(lines, fr, far);
                }
            }
        }

        static void BeKomentaru(string[] lines, StreamWriter fr, StreamWriter far)
        {
            int index = 0;
            string[] pradzia = new string[256];
            string[] pabaiga = new string[256];
            string[] eil = new string[256];
            string[] com = new string[256];
            string[] naujaPr = new string[256];
            string[] naujaPab = new string[256];
            string[] naujaEil = new string[256];
            string[] naujaCom = new string[256];

            foreach (var line in lines)
            {
                for (int i = 0; i < line.Length - 1; i++)
                {
                    if (line[i] == '/' && line[i + 1] == '*')
                    {
                        pradzia[index] = line;
                        naujaPr[index] = TrintiTeksta1(line);
                    }
                    if (line[i] == '*' && line[i + 1] == '/')
                    {
                        pabaiga[index] = line;
                        naujaPab[index] = TrintiTeksta2(line);
                    }
                    if (line[i] == '/' && line[i + 1] == '/')
                    {
                        eil[index] = line;
                        naujaEil[index] = TrintiTeksta3(line);
                    }
                    if (line[i] == '/' && line[i + 1] == '*' || line[i] == '*' && line[i + 1] == '/' || line[i] == '/' && line[i + 1] == '/')
                    {
                        far.WriteLine(line);
                    }
                }

                for (int i = 0; i < line.Length - 3; i++)
                {
                    for (int j = 0; j < line.Length - 1; j++)
                    {
                        if (line[i] == '/' && line[i + 1] == '*' && line[j] == '*' && line[j + 1] == '/')
                        {
                            com[index] = line;
                            naujaCom[index] = TrintiTeksta4(line);
                        }
                    }
                }
                index++;
            }
            string[] newLines = PRirPAB(index, pradzia, pabaiga, eil, com, naujaPr, naujaPab, naujaEil, naujaCom, lines);
            foreach (var newLine in newLines)
            {
                fr.WriteLine(newLine);
            }
        }

        static string[] PRirPAB(int index, string[] pradzia, string[] pabaiga, string[] eil, string[] com, string[] naujaPR, string[] naujaPab, string[] naujaEil, string[] naujaCom, string[] lines)
        {
            for (int i = 0; i < index; i++)
            {
                if (lines[i] == pradzia[i] && lines[i] == pabaiga[i])
                {
                    lines[i] = naujaCom[i];
                }

                else if (lines[i] == pradzia[i])
                {
                    for (int j = i; j < index; j++)
                    {
                        if (lines[j] == pabaiga[j])
                        {
                            if (j > i + 1)
                            {
                                for (int k = i + 1; k < j; k++)
                                {
                                    if (lines[k].Length > 0)
                                        lines[k] = lines[k].Remove(0);
                                }
                                lines[j] = naujaPab[j];
                                break;
                            }
                            else if (j == i + 1)
                            {
                                lines[i] = naujaPR[i];
                                lines[j] = naujaPab[j];
                                break;
                            }
                        }
                    }
                    lines[i] = naujaPR[i];
                }

                else if (lines[i] == eil[i])
                        lines[i] = naujaEil[i];
            }
            for (int i = 0; i < index; i++)
            {
                lines = lines.Where(x => !string.IsNullOrEmpty(x)).ToArray();
            }
            return lines;
        }

        static string TrintiTeksta1(string line)
        {
            string nauja = line;
            for (int i = 0; i < line.Length - 1; i++)
            {
                if (line[i] == '/' && line[i + 1] == '*')
                    nauja = line.Remove(i);
            }
            return nauja;
        }
        static string TrintiTeksta2(string line)
        {
            string nauja = line;
            for (int i = 0; i < line.Length - 1; i++)
            {
                if (line[i] == '*' && line[i + 1] == '/')
                    nauja = line.Remove(0,i+2);
            }
            return nauja;
        }
        static string TrintiTeksta3(string line)
        {
            string nauja = line;
            for (int i = 0; i < line.Length - 1; i++)
            {
                if (line[i] == '/' && line[i + 1] == '/')
                    nauja = line.Remove(i);
            }
            return nauja;
        }
        static string TrintiTeksta4(string line)
        {
            string nauja = line;
            for (int i = 0; i < line.Length - 3; i++)
            {
                for (int j = 0; j < line.Length - 1; j++)
                {
                    if (line[i] == '/' && line[i + 1] == '*' && line[j] == '*' && line[j + 1] == '/')
                    {
                        nauja = line.Remove(i, j - i + 2);
                    }
                }
            }
            return nauja;
        }
    }
}