import java.util.*;
/**
 * Since i have to declare the return type of a function, and i have no idea
 * ahead of time what value is being unserialized, this helper class is a hack
 * so that i can return any variable type as PHPValue and deal with it later.
 *
 * @author Scott Hurring [scott at hurring dot com]
 * @version v0.01a ALPHA!!
 * @licence GNU GPL
 */
public class PHPValue 
{
	/**
	* The raw object given to us by unserialize()
	*/
	private Object obj = null;
	private HashMap hobj = new HashMap();
	
	/**
	* The toString() value of the Object passed into PHPValue
	*/
	public String value = "";
	
	/**
	* Is the PHPValue one of the following?
	*/
	public boolean isNull = false;
	public boolean isInteger = false;
	public boolean isDouble = false;
	public boolean isString = false;
	public boolean isHashMap = false;

	/**
	* Pass in an object, and PHPValue:
	* 1. Attempts to try and figure out what it is
	* 2. Stringifies it
	* 3. Sets a boolean flag to let everyone know what we think it is.
	*
	*/
	public PHPValue(Object o) 
	{
		obj = o;

		if (obj == null) {
			isNull = true;
			value = "";
		} else if (obj.getClass().toString().equals("class java.lang.Integer")) {
			isInteger = true;
			value = ((Integer)obj).toString();
		} else if (obj.getClass().toString().equals("class java.lang.Double")) {
			isDouble = true;
			value = ((Double)obj).toString();
		} else if (obj.getClass().toString().equals("class java.util.HashMap")) {
			isHashMap = true;
			value = obj.toString();
		} else if (obj.getClass().toString().equals("class java.lang.String")) {
			isString = true;
			value = obj.toString();
		} else {
			value = obj.toString();
		}

		// debug
		if (obj != null) {
			System.out.println("PHPValue: '" + obj.getClass() + "' = " + value);
		}

	}

	/**
	* Convert PHPValue into a double
	*
	* @return double
	*/
	public double toDouble() {
		if (isDouble) {
			return Double.parseDouble(value);
		} else {
			return 0.0;
		}
	}
	
	/**
	* Convert PHPValue into an integer
	*
	* @return int
	*/
	public int toInteger() {
		if (isInteger) {
			return Integer.parseInt(value);
		} else {
			return 0;
		}
	}

	/**
	* PHPValue's string-ified value
	*
	* @return String
	*/
	public String toString() {
		if (!isNull) {
			return value;
		} else {
			return "";
		}
	}

	/**
	* Cast PHPValue into HashMap
	*
	* @return HashMap
	*/
	public HashMap toHashMap() {
		return (HashMap)obj;
	}

	/**
	* Return the raw object
	*
	* @return double
	*/
	public Object toObject() {
		return obj;
	}

}