package org.honours.collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

/**
 * A collection information object is used to 
 * hold information about a collection during runtime
 * of the system. Replaces the collectionInfo.inf file
 * which was used originally.
 * @author Korii 14/11/2012
 */
public class CollectionInformation {

	private List<String[]> _rows;

	
	public CollectionInformation(){
		_rows = new ArrayList<String[]>();
	}
	
	/**
	 * Add a row containing information about an individual collection
	 * item or layer.
	 * 
	 * @param type - Three types: "I" for collection item; 
	 * 				 "LT" for text layer and "LI" for image layer.
	 * @param frameName - name of the frame representing a collection item/layer
	 * @param assocfilepath - the assocfilepath value associated with the item.
	 */
	public void addRow(String type,String frameName,String assocfilepath){
		
		String[] row = new String[]{type,frameName,assocfilepath};
		_rows.add(row);
	}
	
	public List<String[]> getRows(){
		return _rows;
	}
	
	/**
	 * Find a row associated with a particular frame.
	 * @param frameName
	 * @return
	 */
	public String[] findRow(String frameName){
		
		String[] result = null;
		
		for(String[] s : _rows){
			if(s[1].equals(frameName))
				result = s;
		}
		
		return result;
	}
	
	/**
	 * Sort the collection information object by
	 * assocfilepath
	 */
	public void sort(){
		//sort rows by the 3rd index of arrays (assocfilepath)
		Collections.sort(_rows,new Comparator<String[]>(){
			public int compare(String[] s1, String[] s2){
				return s1[2].compareTo(s2[2]);
			}
		});
	}
	
}