Quests Journal

package com.company;


import java.util.*;
import java.util.stream.Collectors;


public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        List<String> quests = Arrays.stream(scanner.nextLine().split(", "))
                .collect(Collectors.toList());

        List<String> input = Arrays.stream(scanner.nextLine().split(" - "))
                .collect(Collectors.toList());

        while (!input.contains("Retire!")){

            String second = input.get(1);

            if (input.contains("Start")) {

                if (!quests.contains(second)){

                    quests.add(input.get(1));
                }
            }else if (input.contains("Complete")){

                if (quests.contains(second)){

                    quests.remove(second);
                }

            }else if (input.contains("Side Quest")){

                List<String> sideQuest= Arrays.stream(input.get(1).split(":"))
                        .collect(Collectors.toList());

                int index = quests.indexOf(sideQuest.get(0));
                String element2 = sideQuest.get(1);

                if (quests.contains(sideQuest.get(0))){

                    if (!quests.contains(element2)){

                        quests.add(index+1,element2);
                    }


                }

            }else if (input.contains("Renew")){

                if (quests.contains(second)){

                    quests.remove(second);
                    quests.add(second);
                }

            }
           input=Arrays.stream(scanner.nextLine().split(" - "))
                    .collect(Collectors.toList());
        }

        //   System.out.println(Arrays.toString(quests.toArray())
        //            .replace("]","")
        //           .replace("[",""));


        System.out.println(String.join(", ", quests).trim());

    }
}