/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun
 * Microsystems, Inc. All Rights Reserved.
 */
package org.netbeans.modules.refactoring.ui;

import java.lang.Integer;
import java.text.MessageFormat;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import javax.jmi.reflect.RefObject;
import javax.swing.JPanel;
import javax.swing.table.DefaultTableModel;
import org.netbeans.jmi.javamodel.JavaClass;
import org.netbeans.jmi.javamodel.Method;

import org.netbeans.modules.refactoring.api.Problem;
import org.netbeans.modules.refactoring.api.AbstractRefactoring;
import org.netbeans.modules.refactoring.api.ChangeParameters;
import org.netbeans.modules.refactoring.api.ui.ParametersPanel;
import org.netbeans.modules.refactoring.api.ui.RefactoringUI;
import org.netbeans.modules.refactoring.api.ChangeParameters.ParameterInfo;
import org.netbeans.jmi.javamodel.BehavioralFeature;
import org.netbeans.jmi.javamodel.CallableFeature;
import org.netbeans.jmi.javamodel.JavaModelPackage;
import org.netbeans.jmi.javamodel.Type;
import org.openide.util.HelpCtx;
import org.openide.util.NbBundle;

/**
 *
 * @author  Pavel Flaska
 */
public class ChangeParametersUI implements RefactoringUI {
    
    RefObject refactoredObj;
    ChangeParametersPanel panel;
    ChangeParameters refactoring;
    
    /** Creates a new instance of ChangeMethodSignatureRefactoring */
    public ChangeParametersUI(RefObject refactoredObj) {
        this.refactoring = new ChangeParameters(refactoredObj);
        this.refactoredObj = refactoredObj;
    }
    
    public String getDescription() {
        String msg = NbBundle.getMessage(ChangeParametersUI.class, 
                                        "DSC_ChangeParsRootNode");
        CallableFeature callable = ((CallableFeature) refactoredObj);
        boolean isMethod = callable instanceof Method;
        String name = isMethod ? callable.getName() : ((JavaClass) callable.getDeclaringClass()).getSimpleName();
        return new MessageFormat(msg).format(new Object[] { 
            name,
            NbBundle.getMessage(ChangeParametersUI.class, "DSC_ChangeParsRootNode" + (isMethod ? "Method" : "Constr")),
            panel.genDeclarationString()
       });
    }
    
    public JPanel getPanel(ParametersPanel parent) {
        if (panel == null) {
            parent.setPreviewEnabled(true);
            panel = new ChangeParametersPanel(refactoredObj, parent);
        }
        return panel;
    }
    
    public AbstractRefactoring getRefactoring() {
        return refactoring;
    }
    
    public boolean isQuery() {
        return false;
    }
    
    private Problem setParameters(boolean checkOnly) {
        List data = (List) panel.getTableModel().getDataVector();
        ChangeParameters.ParameterInfo[] paramList = new ChangeParameters.ParameterInfo[data.size()];
        JavaModelPackage pckg = (JavaModelPackage) refactoredObj.refImmediatePackage();
        int counter = 0;
        Problem problem = null;
        for (Iterator rowIt = data.iterator(); rowIt.hasNext(); ++counter) {
            List row = (List) rowIt.next();
            int origIndex = ((Integer) row.get(3)).intValue();
            String name = null;
            String defaultVal = null;
            Type type = null;
            if (origIndex == -1) {
                name = (String) row.get(0);
                type = pckg.getType().resolve((String) row.get(1));
                defaultVal = (String) row.get(2);
            }
            paramList[counter] = new ChangeParameters.ParameterInfo(origIndex, name, type, defaultVal);
        }
        int modifier = panel.getModifier();
        if (checkOnly) {
            problem = refactoring.checkParameters(paramList, modifier);
        } else {
            problem = refactoring.setParameters(paramList, modifier);
        }
        return problem;
    }
    
    public String getName() {
        return NbBundle.getMessage(ChangeParametersUI.class, "LBL_ChangeMethodSignature");
    }
    
    public Problem checkParameters() {
        return setParameters(true);
    }

    public Problem setParameters() {
        return setParameters(false);
    }
    
    public boolean hasParameters() {
        return true;
    }
    
    public HelpCtx getHelpCtx() {
        return new HelpCtx(ChangeParametersUI.class);
    }
}