import java.util.ArrayList;

public class Directory {

	private ArrayList<File> files;
	private ArrayList<Directory> directories;
	private Directory outerDirectory;
	private String name;
	
	public Directory(String name, Directory outerDirectory) {
		files = new ArrayList<File>();
		directories = new ArrayList<Directory>();
		this.outerDirectory = outerDirectory;
		this.name = name;
	}
	
	public Directory outerDirectory() {
		return outerDirectory;
	}
	
	public void addElement(Object element) {
		if (element instanceof File) {
			files.add((File) element);
		}
		else if (element instanceof Directory) {
			directories.add((Directory) element);
		}
	}
	
	public int size() {
		int sum = 0;
		
		for (File file : files) {
			sum += file.size();
		}
		
		for (Directory directive : directories) {
			sum += directive.size();
		}
		
		return sum;
	}
	
	public String name() {
		return name;
	}

	public Directory getInnerDirectory(String name) {
		for (Directory directory : directories) {
			if (directory.name().equals(name))
				return directory;
		}
		return null;
	}
	
	public ArrayList<Directory> getAllInnerDirectories() {
		return directories;
	}
	
	public ArrayList<Directory> getAllFolders() {
		ArrayList<Directory> folderList = new ArrayList<Directory>();

        folderList.addAll(directories);

        for (Directory e : directories)
        	folderList.addAll(e.getAllFolders());

        return folderList;
	}
	
	public int countSum(int maximum) {
		int sum = 0;

		for (Directory directive : this.getAllFolders()) {
			if (directive.size() <= maximum)
				sum += directive.countSum(maximum);
		}
		
		return sum;
	}
	
	public void print() {
		for (Directory directive : directories) {
			System.out.println(directive.size());
		}
	}

}