Ex072419_01_Concert

import java.util.*;

public class Ex072419_01_Concert {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String command = scanner.nextLine();

        Map<String, List<String>> bands = new LinkedHashMap<>();
        Map<String, Integer> time = new LinkedHashMap<>();

        while (!command.equals("start of concert")) {

            String[] tokens = command.split("; ");
            command = tokens[0];
            String bandName = tokens[1];

            List<String> members = bands.get(bandName);
            switch (command) {
                case "Play":
                    int currTime = Integer.parseInt(tokens[2]);
                    bands.putIfAbsent(bandName, new ArrayList<>());
                    time.putIfAbsent(bandName, 0);
                    int totalTime = time.get(bandName) + currTime;
                    time.put(bandName, totalTime);
                    break;
                case "Add":
                    String[] bandMembers = tokens[2].split(", ");
                    bands.putIfAbsent(bandName, new ArrayList<>());
                    members = bands.get(bandName);
                    for (String currMember : bandMembers) {
                        if (members.contains(currMember)) {
                            continue;
                        }
                        members.add(currMember);
                    }
                    time.putIfAbsent(bandName, 0);

                    break;
            }
            command = scanner.nextLine();
        }
        int totalTime = time.values().stream().mapToInt(value -> value).sum();
        System.out.println("Total time: "+ totalTime);

        time
                .entrySet()
                .stream()
                .sorted((f, s) -> {
                    int result = s.getValue().compareTo(f.getValue());
                    if (result==0){
                       result = f.getKey().compareTo(s.getKey());
                    }
                    return  result;
                })
        .forEach( band -> System.out.printf("%s -> %d%n",band.getKey(), band.getValue()));

       command = scanner.nextLine();
        System.out.println(command);

        for (String member : bands.get(command)) {
            System.out.println("=> "+ member);

        }

    }
}