/**

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * Contributor(s):

 *

 * The Original Software is NetBeans. The Initial Developer of the Original

 * Software is Oracle. Portions Copyright 2013-2013 Oracle. All Rights Reserved.

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 */

package org.netbeans.html.json.impl;

import java.lang.reflect.Array;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collection;

import java.util.Iterator;

import java.util.List;

import net.java.html.BrwsrCtx;

/**

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

public final class JSONList<T> extends ArrayList<T> {

    private final String name;

    private final String[] deps;

    private Bindings[] model;

    private Runnable onchange;

    public JSONList(Bindings[] model, String name, String... deps) {

        assert model.length == 1;

        this.model = model;

        this.name = name;

        this.deps = deps;

    }

    public void init(T... values) {

        if (values == null || values.length == 0) {

            return;

        }

        if (this.model[0] != null || !isEmpty()) {

            throw new IllegalStateException();

        }

        super.addAll(Arrays.asList(values));

    }

    public void init(Object values) {

        int len;

        if (values == null || (len = Array.getLength(values)) == 0) {

            return;

        }

        if (this.model[0] != null || !isEmpty()) {

            throw new IllegalStateException();

        }

        for (int i = 0; i < len; i++) {

            Object data = Array.get(values, i);

            super.add((T)data);

        }

    }

    public JSONList<T> onChange(Runnable r) {

        if (this.onchange != null) {

            throw new IllegalStateException();

        }

        this.onchange = r;

        return this;

    }

    @Override

    public boolean add(T e) {

        boolean ret = super.add(e);

        notifyChange();

        return ret;

    }

    @Override

    public boolean addAll(Collection<? extends T> c) {

        boolean ret = super.addAll(c);

        notifyChange();

        return ret;

    }

    @Override

    public boolean addAll(int index, Collection<? extends T> c) {

        boolean ret = super.addAll(index, c);

        notifyChange();

        return ret;

    }

    @Override

    public boolean remove(Object o) {

        boolean ret = super.remove(o);

        notifyChange();

        return ret;

    }

    @Override

    public void clear() {

        super.clear();

        notifyChange();

    }

    @Override

    public boolean removeAll(Collection<?> c) {

        boolean ret = super.removeAll(c);

        notifyChange();

        return ret;

    }

    @Override

    public boolean retainAll(Collection<?> c) {

        boolean ret = super.retainAll(c);

        notifyChange();

        return ret;

    }

    @Override

    public T set(int index, T element) {

        T ret = super.set(index, element);

        notifyChange();

        return ret;

    }

    @Override

    public void add(int index, T element) {

        super.add(index, element);

        notifyChange();

    }

    @Override

    public T remove(int index) {

        T ret = super.remove(index);

        notifyChange();

        return ret;

    }

    @Override

    public String toString() {

        Iterator<T> it = iterator();

        if (!it.hasNext()) {

            return "[]";

        }

        String sep = "";

        StringBuilder sb = new StringBuilder();

        sb.append('[');

        while (it.hasNext()) {

            T t = it.next();

            sb.append(sep);

            sb.append(JSON.toJSON(t));

            sep = ",";

        }

        sb.append(']');

        return sb.toString();

    }

    private void notifyChange() {

        Bindings m = model[0];

        if (m != null) {

            m.valueHasMutated(name);

            for (String dependant : deps) {

                m.valueHasMutated(dependant);

            }

            Runnable r = onchange;

            if (r != null) {

                r.run();

            }

        }

    }

    public void cloneAll(BrwsrCtx c, Collection<T> other) {

        Boolean isModel = null;

        for (T t : other) {

            if (isModel == null) {

                isModel = JSON.isModel(t.getClass());

            }

            if (isModel) {

                add(JSON.bindTo(t, c));

            } else {

                add(t);

            }

        }

    }

    @Override

    public JSONList clone() {

        throw new UnsupportedOperationException();

    }

    static final Object koData(Collection<?> c, Bindings m) {

        Object[] arr = c.toArray(new Object[c.size()]);

        for (int i = 0; i < arr.length; i++) {

            Object r = WrapperObject.find(arr[i], m);

            if (r != null) {

                arr[i] = r;

            }

        }

        return m.wrapArray(arr);

    }

    final Object koData() {

        return koData(this, model[0]);

    }

}