package model;

import java.util.LinkedList;
import java.util.List;

public class NewsCollection extends Item {

	private final List<Item> items = new LinkedList<>();

	public NewsCollection(String title) {
		this.title = title;
	}

	/**
	 * Gets overview information about all directly or transitively
	 * referenced items in the given collection.
	 */
	public String getOverview(){
		StringBuilder builder = new StringBuilder();
		builder
                .append("###").append(getTitle()).append("###")
				.append("\n");
		for(Item item : getItems()){
			builder
					.append(item.getOverview())
				    .append("\n");
		}
		return builder.toString();
	}

	/**
	 * Gets the contents of all directly or transitively referenced items in
	 * the given collection.
	 */
	public String getDetails(){
		StringBuilder builder = new StringBuilder();
		builder
                .append("###").append(getTitle()).append("###")
				.append("\n");
		for (Item item : getItems()) {
			builder.append(item.getDetails());
		}
		return builder.toString();
	}

	//=================================

	/**
	 * Get the list of items stored directly in this collection.
	 * @return items stored in this collection
	 */
	public List<Item> getItems() {
		return items;
	}
	
	/**
	 * Store an item directly in this collection.
	 * @param item to add
	 * @return this collection (enables method chaining)
	 */
	public NewsCollection addItem(Item item) {
		items.add(item);
		return this;
	}
}