/*
 * Created on 23.11.2004
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package net.sourceforge.phpeclipse.xdebug.php.model;

import net.sourceforge.phpeclipse.xdebug.core.PHPDebugUtils;

import org.eclipse.debug.core.DebugEvent;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IValue;
import org.eclipse.debug.core.model.IVariable;
import org.w3c.dom.Node;

/**
 * @author Axel
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class XDebugVariable extends XDebugElement implements IVariable {

	public static final int VARTYPE_UNKNOWN = -1;

	public static final int VARTYPE_UNINITIALIZED = 0;

	public static final int VARTYPE_STRING = 1;

	public static final int VARTYPE_INT = 2;

	public static final int VARTYPE_FLOAT = 3;

	public static final int VARTYPE_ARRAY = 8;

	public static final int VARTYPE_HASH = 9;

	public static final int VARTYPE_OBJECT = 10;

	// name & stack frmae
	private String fName;

	private XDebugStackFrame fFrame;

	private String fFullName;

	// private String fTypeName;
	// private int fType;
	private XDebugAbstractValue fValue;

	private String fEncoding;

	private int fNumChildren;

	// private Node fVariableNode;

	/**
	 * Constructs a variable contained in the given stack frame with the given
	 * name.
	 * 
	 * @param frame
	 *            owning stack frame
	 * @param name
	 *            variable name
	 */
	public XDebugVariable(XDebugStackFrame frame, Node property) {
		super((XDebugTarget) frame.getDebugTarget());
		fFrame = frame;
		init(property);

	}

	private void init(Node property) {
		fFullName = PHPDebugUtils.getAttributeValue(property, "fullname");
		fName = PHPDebugUtils.getAttributeValue(property, "name");
		fEncoding = PHPDebugUtils.getAttributeValue(property, "encoding");
		if (PHPDebugUtils.getAttributeValue(property, "numchildren").equals(""))
			fNumChildren = 0;
		else
			fNumChildren = Integer.parseInt(PHPDebugUtils.getAttributeValue(
					property, "numchildren"));

		String typeName = PHPDebugUtils.getAttributeValue(property, "type");

		// if (typeName.equals("uninitialized") )
		// fValue= new XDebugValue(this,property,typeName);
		if (typeName.equals("int"))
			fValue = new XDebugIntValue(this, property, typeName);
		else if (typeName.equals("float"))
			fValue = new XDebugFloatValue(this, property, typeName);
		else if (typeName.equals("bool"))
			fValue = new XDebugBooleanValue(this, property, typeName);
		else if (typeName.equals("string"))
			fValue = new XDebugStringValue(this, property, typeName);
		else if (typeName.equals("array"))
			fValue = new XDebugArrayValue(this, property, typeName);
		else if (typeName.equals("hash"))
			fValue = new XDebugArrayValue(this, property, typeName);
		else if (typeName.equals("object"))
			fValue = new XDebugArrayValue(this, property, typeName);
		else
			fValue = new XDebugValue(this, property, typeName);

		// else if (typeName.equals("float") )
		// fTypeName= VARTYPE_FLOAT;
		// else if (typeName.equals("string") )
		// fTypeName= VARTYPE_STRING;
		// else if (typeName.equals("hash") )
		// fTypeName= VARTYPE_HASH;
		// else if (typeName.equals("array") )
		// fTypeName= VARTYPE_ARRAY;
		// else if (typeName.equals("object") )
		// fTypeName= VARTYPE_OBJECT;

		// fTypeName=type;
		//		
		// fValue= new XDebugValue(this,property);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IVariable#getValue()
	 */
	public IValue getValue() throws DebugException {
		return fValue;
		// return ((XDebugTarget)getDebugTarget()).getVariableValue(this);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IVariable#getName()
	 */
	public String getName() throws DebugException {
		if (fFullName.endsWith("]"))
			return fFullName.substring(fFullName.lastIndexOf('['));
		else
			return fName;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IVariable#getReferenceTypeName()
	 */
	public String getReferenceTypeName() throws DebugException {
		return fValue.getReferenceTypeName();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IVariable#hasValueChanged()
	 */
	public boolean hasValueChanged() throws DebugException {
		// TODO Auto-generated method stub
		return false;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IValueModification#setValue(java.lang.String)
	 */
	public void setValue(String expression) throws DebugException {
		if (fValue.setValue(expression))
			fireEvent(new DebugEvent(this, DebugEvent.CHANGE,
					DebugEvent.CONTENT));
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IValueModification#setValue(org.eclipse.debug.core.model.IValue)
	 */
	public void setValue(IValue value) throws DebugException {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IValueModification#supportsValueModification()
	 */
	public boolean supportsValueModification() {
		return fValue.supportsValueModification();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IValueModification#verifyValue(java.lang.String)
	 */
	public boolean verifyValue(String expression) throws DebugException {
		return fValue.verifyValue(expression);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.debug.core.model.IValueModification#verifyValue(org.eclipse.debug.core.model.IValue)
	 */
	public boolean verifyValue(IValue value) throws DebugException {
		return false;
	}

	/**
	 * Returns the stack frame owning this variable.
	 * 
	 * @return the stack frame owning this variable
	 */
	protected XDebugStackFrame getStackFrame() {
		return fFrame;
	}

	// public int getType() {
	// return fType;
	// }

	public String getValueString() throws DebugException {
		return fValue.getValueString();
	}

	public boolean hasChildren() {
		return (fNumChildren > 0);
	}

	public boolean isArray() {
		return (fValue.isArray());
	}

	public String getEncoding() {
		return fEncoding;
	}

	public void setEncoding(String encoding) {
		fEncoding = encoding;
	}

	public String toString() {
		return fValue.toString();
	}

	public String getFullName() {
		return fFullName;
	}

}