package strategy;

import java.util.Arrays;

/**
 * Context — uses a SortStrategy. The strategy can be swapped at runtime.
 * Sorter doesn't care which algorithm is used; it just calls sort().
 */
public class Sorter {
    private SortStrategy strategy;

    public Sorter(SortStrategy strategy) { this.strategy = strategy; }

    public void setStrategy(SortStrategy strategy) {
        System.out.println("  Switching to: " + strategy.getName());
        this.strategy = strategy;
    }

    public int[] sort(int[] data) {
        int[] copy = Arrays.copyOf(data, data.length);
        strategy.sort(copy);
        return copy;
    }
}