/*
 * SoapUI, Copyright (C) 2004-2016 SmartBear Software 
 *
 * Licensed under the EUPL, Version 1.1 or - as soon as they will be approved by the European Commission - subsequent 
 * versions of the EUPL (the "Licence"); 
 * You may not use this work except in compliance with the Licence. 
 * You may obtain a copy of the Licence at: 
 * 
 * http://ec.europa.eu/idabc/eupl 
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the Licence is 
 * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 
 * express or implied. See the Licence for the specific language governing permissions and limitations 
 * under the Licence. 
 */

package com.eviware.soapui.support.components;

import com.eviware.soapui.impl.wsdl.teststeps.WsdlTestStep;
import com.eviware.soapui.model.support.TestPropertyListenerAdapter;

import javax.swing.AbstractListModel;
import javax.swing.ComboBoxModel;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class TestStepPropertyComboBoxModel extends AbstractListModel implements ComboBoxModel {
    private WsdlTestStep testStep;
    private List<String> names;
    private String selectedName;
    private InternalTestPropertyListener testStepListener = new InternalTestPropertyListener();

    public TestStepPropertyComboBoxModel(WsdlTestStep testStep) {
        this.testStep = testStep;

        names = new ArrayList<String>();

        if (testStep != null) {
            names.addAll(Arrays.asList(testStep.getPropertyNames()));
            testStep.addTestPropertyListener(testStepListener);
        }
    }

    public void release() {
        if (testStep != null) {
            testStep.removeTestPropertyListener(testStepListener);
        }
    }

    public WsdlTestStep getTestStep() {
        return testStep;
    }

    public void setTestStep(WsdlTestStep testStep) {
        if (this.testStep != null) {
            this.testStep.removeTestPropertyListener(testStepListener);
        }

        int sz = names.size();
        if (sz > 0) {
            names.clear();
            fireIntervalRemoved(this, 0, sz - 1);
        }

        this.testStep = testStep;
        if (testStep != null) {
            testStep.addTestPropertyListener(testStepListener);
            names.addAll(Arrays.asList(testStep.getPropertyNames()));
            if (!names.isEmpty()) {
                fireIntervalAdded(this, 0, names.size() - 1);
            }
        }

        setSelectedItem(null);
    }

    public Object getElementAt(int index) {
        return names.get(index);
    }

    public int getSize() {
        return names.size();
    }

    private final class InternalTestPropertyListener extends TestPropertyListenerAdapter {
        @Override
        public void propertyAdded(String name) {
            names.add(name);
            fireIntervalAdded(TestStepPropertyComboBoxModel.this, names.size() - 1, names.size() - 1);
        }

        @Override
        public void propertyRemoved(String name) {
            int ix = names.indexOf(name);
            if (ix >= 0) {
                names.remove(ix);
                fireIntervalRemoved(TestStepPropertyComboBoxModel.this, ix, ix);

                if (name.equals(selectedName)) {
                    setSelectedItem(null);
                }
            }
        }

        @Override
        public void propertyRenamed(String oldName, String newName) {
            int ix = names.indexOf(oldName);
            fireContentsChanged(TestStepPropertyComboBoxModel.this, ix, ix);

            if (oldName.equals(selectedName)) {
                setSelectedItem(newName);
            }
        }

        @Override
        public void propertyMoved(String name, int oldIndex, int newIndex) {
            fireContentsChanged(TestStepPropertyComboBoxModel.this, 0, getSize() - 1);
        }

    }

    public Object getSelectedItem() {
        return selectedName;
    }

    public void setSelectedItem(Object anItem) {
        if (anItem == null && selectedName == null) {
            return;
        }

        if (anItem != null && selectedName != null && anItem.equals(selectedName)) {
            return;
        }

        selectedName = anItem == null ? null : anItem.toString();

        fireContentsChanged(this, -1, -1);
    }
}