package be.nikiroo.fanfix.data;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * A chapter in the story (or the resume/description).
 * 
 * @author niki
 */
public class Chapter implements Iterable<Paragraph> {
	private String name;
	private int number;
	private List<Paragraph> paragraphs = new ArrayList<Paragraph>();
	private List<Paragraph> empty = new ArrayList<Paragraph>();

	/**
	 * Create a new {@link Chapter} with the given information.
	 * 
	 * @param number
	 *            the chapter number, or 0 for the description/resume.
	 * @param name
	 *            the chapter name
	 */
	public Chapter(int number, String name) {
		this.number = number;
		this.name = name;
	}

	/**
	 * The chapter name.
	 * 
	 * @return the name
	 */
	public String getName() {
		return name;
	}

	/**
	 * The chapter name.
	 * 
	 * @param name
	 *            the name to set
	 */
	public void setName(String name) {
		this.name = name;
	}

	/**
	 * The chapter number, or 0 for the description/resume.
	 * 
	 * @return the number
	 */
	public int getNumber() {
		return number;
	}

	/**
	 * The chapter number, or 0 for the description/resume.
	 * 
	 * @param number
	 *            the number to set
	 */
	public void setNumber(int number) {
		this.number = number;
	}

	/**
	 * The included paragraphs.
	 * 
	 * @return the paragraphs
	 */
	public List<Paragraph> getParagraphs() {
		return paragraphs;
	}

	/**
	 * The included paragraphs.
	 * 
	 * @param paragraphes
	 *            the paragraphs to set
	 */
	public void setParagraphs(List<Paragraph> paragraphs) {
		this.paragraphs = paragraphs;
	}

	/**
	 * Get an iterator on the {@link Paragraph}s.
	 */
	public Iterator<Paragraph> iterator() {
		return paragraphs == null ? empty.iterator() : paragraphs.iterator();
	}

	/**
	 * Display a DEBUG {@link String} representation of this object.
	 */
	@Override
	public String toString() {
		return "Chapter " + number + ": " + name;
	}
}