P03.Inventory_03 (C# Shell App Paste)

//Disclaimer: The creator of 'C# Shell (C# Offline Compiler)' is in no way responsible for the code posted by any user.
using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;

namespace CSharp_Shell
{

    public static class Program
    {

        public static void Main()
        {
           var journal = Console.ReadLine().Split(new []{',',' '},StringSplitOptions.RemoveEmptyEntries).ToArray();
           var exists = false;
           var index = -1;


           while(true)
           {
            var input = Console.ReadLine();

            if(input == "exit")
            {
                break;
            }

            var commands = input.Split(" - ");
            string command = commands[0];

            if(command == "Collect")
            {
                string item = commands[1];
                if(Exists(exists, journal, item) == false)
                {
                    var newJournal = new string[journal.Length + 1];
                    for(int i=0;i<journal.Length;i++)
                    {
                        newJournal[i]=journal[i];
                    }

                    newJournal[newJournal.Length-1] = item;
                    journal = newJournal;
                }
            }

            if(command == "Drop")
            {
                string item = commands[1];
                if (Exists(exists, journal, item))
                {
                    journal = RemoveAt(journal, Index(exists, journal, item, index));
                    //string[] newJournal = new string[journal.Length - 1];
                    //if( Index(exists,journal, item, index) > 0 )
                    //{
                    //  for(int  i = 0;i<Index(exists, journal, item, index);i++)
                    //  {
                    //      newJournal[i] = journal[i];
                    //  }
                    //}

                    //if( Index(exists, journal, item, index) < journal.Length - 1 )
                    //{
                    //  for(int i=Index(exists, journal, item, index);i<journal.Length-Index(exists, journal,item, index)-1;i++)
                    //  {
                    //      newJournal[Index(exists, journal, item, index)] = journal[Index(exists, journal, item, index)+1];
                    //  }
                    //}
                    //
                    //  journal = newJournal;
                }
            }

            if(command == "Combine Items")
            {
                var items = commands[1].Split(':');
                var oldItem = items[0];
                var newItem = items[1];
                if(Exists(exists, journal, oldItem))
                {
                    var newJournal = new string[journal.Length+1];

                }
            }

            if(command=="Renew")
            {
                string item = commands[1];


            }

           }
           for(int  i=0;i<journal.Length-1;i++)
           {
            Console.Write(journal[i] + ", ");

           }
            Console.Write(journal[journal.Length-1]);
            Console.WriteLine(" ");
        }

        public static bool Exists(bool exists, string[] journal, string item)
        {
            for(int i=0;i<journal.Length;i++)
                {
                    if(item == journal[i])
                    {
                        exists = true;
                    }

                }
                return exists;
        }
        public static int Index(bool exists, string[] journal, string item, int index)
        {
            for(int i=0;i<journal.Length;i++)
                {
                    if(item == journal[i])
                    {
                        exists = true;
                        index = i;
                    }

                }
                return index;
        }
        //public static T[] RemoveAt<T>(this T[] journal, int index)
        //{
        //  T[] dest = new T[journal.Length - 1];
        //  if( index > 0 )
        //  Array.Copy(journal, 0, dest, 0, index);
        //  if( index < journal.Length - 1 )
        //  Array.Copy(journal, index + 1, dest, index, journal.Length - index - 1);
        //  return dest;
        //}
        public static string[] RemoveAt(string[] journal, int index)
        {
            string[] dest = new string[journal.Length - 1];
            if( index > 0 )
            Array.Copy(journal, 0, dest, 0, index);
            if( index < journal.Length - 1 )
            Array.Copy(journal, index + 1, dest, index, journal.Length - index - 1);
            return dest;
        }
    }
}