import java.util.List;

public interface BuildProgressArea {
    // TODO(ew): Consider whether this belongs in Console or here
    StyledLabel getProgressBar();
    List<StyledLabel> getBuildProgressLabels();
    void resizeBuildProgressTo(int numberOfLabels);
    void setVisible(boolean isVisible);

        this.labelFormatter = labelFormatter;
        this.consoleLayoutCalculator = consoleLayoutCalculator;
        this.unusedProgressLabels = new ArrayDeque<StyledLabel>(progressArea.getBuildProgressLabels());
    }

    @Override
    public void onOutput(OutputEvent event) {
        queue.add(event);

        if (event instanceof UpdateNowEvent) {
            renderNow();

        @Override
        public StyledLabel getProgressBar() {
            return buildStatusLabel;
        }

        @Override
        public List<StyledLabel> getBuildProgressLabels() {
            return buildProgressLabels;
        }

        @Override
        public void setVisible(boolean isVisible) {
            visible = isVisible;
        }

    }

    private DefaultRedrawableLabel newLabel(int row) {
        return new DefaultRedrawableLabel(Cursor.at(row--, 0));
    }

    @Override
    public List<StyledLabel> getBuildProgressLabels() {
        return Collections.unmodifiableList(buildProgressLabels);
    }

    @Override
    public StyledLabel getProgressBar() {
        return progressBarLabel;
    }

    /**

        interaction {
            (progressArea.getHeight() - 1) * ansi.newline()
            1 * ansi.cursorUp(5)

            expectAreaRedraw()

            def absoluteDeltaRowToAreaTop = progressArea.getBuildProgressLabels().size() + 1 - absoluteDeltaRow

            1 * ansi.cursorUp(absoluteDeltaRowToAreaTop)
            1 * ansi.eraseLine(Ansi.Erase.ALL)
            1 * ansi.cursorDown(1)