Quests Journal - TF-MidExam 4Nov18

using System;
using System.Linq;
using System.Collections.Generic;

namespace _03QuestsJournal
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> journal = Console.ReadLine().Split(", ").ToList();

            while (true)
            {
                string command = Console.ReadLine();

                if (command=="Retire!")
                {
                    break;
                }

                string[] tokens = command.Split(new string[] { " - ", ":"}, StringSplitOptions.RemoveEmptyEntries);

                string action = tokens[0];

                if (action == "Start")
                {
                    string quest = tokens[1];

                    if (journal.Contains(quest))
                    {
                        continue;
                    }

                    journal.Add(quest);
                }
                else if (action=="Complete")
                {
                    string quest = tokens[1];

                    if (journal.Contains(quest))
                    {
                        journal.Remove(quest);
                    }
                }
                else if (action == "Side Quest")
                {
                    string quest = tokens[1];
                    string sideQuest = tokens[2];

                    if (journal.Contains(quest))
                    {
                        int index = journal.IndexOf(quest);

                        if (journal.Contains(sideQuest)==false)
                        {
                            journal.Insert(index + 1, sideQuest);
                        }
                    }
                }
                else if (action == "Renew")
                {
                    string quest = tokens[1];

                    if (journal.Contains(quest))
                    {
                        int index = journal.IndexOf(quest);
                        journal.Add(quest);
                        journal.RemoveAt(index);
                    }
                }
            }

            Console.WriteLine(string.Join(", ",journal));

        }
    }
}