package ch.nuth.zhaw.exbox;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

public class RankingTreeServer implements CommandExecutor {

    public Tree<Competitor> createTree(String rankingText) {
        SortedBinaryTree<Competitor> result = new SortedBinaryTree<>();
        List<Competitor> competitors = new RankingListServer().createList(rankingText);

        for (Competitor competitor : competitors) {
            result.add(competitor);
        }

        return result;
    }

    public String createSortedText(Tree<Competitor> competitorTree) {
        AtomicInteger rank = new AtomicInteger(1);
        StringBuilder sb = new StringBuilder();

        competitorTree.traversal().inorder(
            (competitor) -> {
                competitor.setRank(rank.getAndIncrement());
                sb.append(competitor);
                sb.append(System.lineSeparator());
            });

        return sb.toString();
    }

    public String execute(String rankingList) {
        Tree<Competitor> competitorTree = createTree(rankingList);
        return "Rangliste (Tree)\n" + createSortedText(competitorTree);
    }
}