/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://opensource.org/licenses/GPL-2.0.

 */

package org.apidesign.vm4brwsr;

/**

 *

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

 */

class StringArray {

    private String[] arr;

    public StringArray() {

    }

    private StringArray(String[] arr) {

        this.arr = arr;

    }

    public void add(String s) {

        if (arr == null) {

            arr = new String[1];

        } else {

            String[] tmp = new String[arr.length + 1];

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

                tmp[i] = arr[i];

            }

            arr = tmp;

        }

        arr[arr.length - 1] = s;

    }

    StringArray addAndNew(String... values) {

        int j;

        String[] tmp;

        if (arr == null) {

            tmp = new String[values.length];

            j = 0;

        } else {

            tmp = new String[arr.length + values.length];

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

                tmp[i] = arr[i];

            }

            j = arr.length;

        }

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

            tmp[j++] = values[i++];

        }

        return new StringArray(tmp);

    }

    public String[] toArray() {

        return arr == null ? new String[0] : arr;

    }

    static StringArray asList(String... names) {

        return new StringArray(names);

    }

    void reverse() {

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

            String s = arr[i];

            arr[i] = arr[--j];

            arr[j] = s;

        }

    }

    boolean contains(String n) {

        if (arr == null) {

            return false;

        }

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

            if (n.equals(arr[i])) {

                return true;

            }

        }

        return false;

    }

    void delete(int indx) {

        if (arr == null || indx < 0 || indx >= arr.length) {

            return;

        }

        String[] tmp = new String[arr.length - 1];

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

            if (i != indx) {

                tmp[j++] = arr[i];

            }

        }

        arr = tmp;

    }

    int indexOf(String ic) {

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

            if (ic.equals(arr[i])) {

                return i;

            }

        }

        return -1;

    }

}