/**

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

 *

 * Copyright 2013-2014 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

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 * "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 2013-2014 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

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

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package org.netbeans.html.json.impl;

import java.lang.reflect.Array;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Iterator;

import org.netbeans.html.json.spi.Proto;

/**

 *

 * @author Jaroslav Tulach

 */

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

    private final Proto proto;

    private final String name;

    private final String[] deps;

    private final int index;

    public JSONList(Proto proto, String name, int changeIndex, String... deps) {

        this.proto = proto;

        this.name = name;

        this.deps = deps;

        this.index = changeIndex;

    }

    public void init(Object values) {

        int len;

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

            return;

        }

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

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

            super.add((T)data);

        }

    }

    public static <T> void init(Collection<T> to, Object values) {

        int len;

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

            return;

        }

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

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

            to.add((T)data);

        }

    }

    @Override

    public boolean add(T e) {

        prepareChange();

        boolean ret = super.add(e);

        notifyChange();

        return ret;

    }

    @Override

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

        prepareChange();

        boolean ret = super.addAll(c);

        notifyChange();

        return ret;

    }

    @Override

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

        prepareChange();

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

        notifyChange();

        return ret;

    }

    public void fastReplace(Collection<? extends T> c) {

        prepareChange();

        super.clear();

        super.addAll(c);

        notifyChange();

    }

    @Override

    public boolean remove(Object o) {

        prepareChange();

        boolean ret = super.remove(o);

        notifyChange();

        return ret;

    }

    @Override

    public void clear() {

        prepareChange();

        super.clear();

        notifyChange();

    }

    @Override

    public boolean removeAll(Collection<?> c) {

        prepareChange();

        boolean ret = super.removeAll(c);

        notifyChange();

        return ret;

    }

    @Override

    public boolean retainAll(Collection<?> c) {

        prepareChange();

        boolean ret = super.retainAll(c);

        notifyChange();

        return ret;

    }

    @Override

    public T set(int index, T element) {

        prepareChange();

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

        notifyChange();

        return ret;

    }

    @Override

    public void add(int index, T element) {

        prepareChange();

        super.add(index, element);

        notifyChange();

    }

    @Override

    public T remove(int index) {

        prepareChange();

        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 prepareChange() {

        if (index == Integer.MIN_VALUE) {

            try {

                proto.initTo(null, null);

            } catch (IllegalStateException ex) {

                throw new UnsupportedOperationException();

            }

        }

    }

    private void notifyChange() {

        proto.getContext().execute(new Runnable() {

            @Override

            public void run() {

                Bindings m = PropertyBindingAccessor.getBindings(proto, false, null);

                if (m != null) {

                    m.valueHasMutated(name, null, JSONList.this);

                    for (String dependant : deps) {

                        m.valueHasMutated(dependant, null, null);

                    }

                    if (index >= 0) {

                        PropertyBindingAccessor.notifyProtoChange(proto, index);

                    }

                }

            }

        });

    }

    @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 = JSON.find(arr[i], m);

            if (r != null) {

                arr[i] = r;

            }

        }

        return m.wrapArray(arr);

    }

    final Object koData() {

        return koData(this, PropertyBindingAccessor.getBindings(proto, true, null));

    }

}