package dk.itu.oop.lecture6;
import java.lang.reflect.*;
import java.util.*;
class ObjectBrowser{
	private String s = "Hello";

	public static void main(String args[]) {
		System.out.println(toString( new ObjectBrowser() ,3) );
	}
	public static String toString(Object o, int depth){
		return toString(o, indents, depth);
	}

	private static Class[] wrappersArray = {int.class, Integer.class, Character.class};
	private static HashSet wrappers= new HashSet(Arrays.asList(wrappersArray));
	private static String indents = "   ";


	private static String toString(Object o, String indent, int depth){
		if (depth<1) return "...";
		StringBuffer b = new StringBuffer();
		try{Class c = o.getClass();
			String className = c.getName();
			b.append(className+"{\n");
			Field[] f = c.getDeclaredFields();
			for (int i = 0; i < f.length; i++) {
				String fieldName = f[i].getName();
				Class typeClass = f[i].getType();
				String fieldType = typeClass.toString();
				if (Modifier.isStatic(f[i].getModifiers() ) )
					b.append(indent +"static " + fieldName);
				else{
					f[i].setAccessible(true);
					Object value = f[i].get(o);
					String val;
					if (wrappers.contains(typeClass) )
						val = value.toString();
					else if (typeClass.isArray() ){
						val ="[";
						int maxIndex = Math.min( Array.getLength(value), 15 );
						for (int j = 0; j< maxIndex; j++){
							val+=Array.get(value,j).toString();
							if (j+1 < maxIndex) val+= ",";
						}
						val +="]";
					}else
						val = toString(value, indents + indent, depth-1);

					b.append(indent + fieldName + ": " + fieldType + " = " + val );
				}
				if (i+1<f.length) b.append(";\n");
			}
			b.append(" }");
			return b.toString();
		}catch(Exception e){
			return b.toString() + e.toString();
		}
	}






}