package tournament;

import java.util.List;

public abstract class Game {
    
    private static int counter = 0;
    protected final int id;
    //null nicht notwendig
    protected String winner = null;


    protected Game() {
        this.id = counter++;
    }

    public int getId(){
        return this.id;
    }

    public String getWinner(){
        return this.winner;
    }

    public void setWinner(String winner) {
        if (this.winner != null)
            throw new IllegalStateException("winner already set");
        if (getPlayer1() == null || getPlayer2() == null)
            throw new IllegalStateException("Opponents are not yet known");
        if (getPlayer1().equals(winner) || getPlayer2().equals(winner))
            this.winner = winner;
        else
            throw new IllegalArgumentException("Unknown player " + winner);
    }


    public abstract String getPlayer1();

    public abstract String getPlayer2();

    public abstract List<String> getAllPlayers();

    public abstract List<String> getRemaningPlayers();
    
    public abstract List<Game> getAllGames();

    public String toString() {
        return "Game: " + getId() + " Player: "+ getPlayer1()+ " vs Player: " + getPlayer2() + "Winner is: "+ getWinner();
    }

}