# Source: streaming/utils/IsoFile.js

    /**
     * The copyright in this software is being made available under the BSD License,
     * included below. This software may be subject to other third party and contributor
     * rights, including patent rights, and no such rights are granted under this license.
     *
     * Copyright (c) 2013, Dash Industry Forum.
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without modification,
     * are permitted provided that the following conditions are met:
     *  * Redistributions of source code must retain the above copyright notice, this
     *  list of conditions and the following disclaimer.
     *  * Redistributions in binary form must reproduce the above copyright notice,
     *  this list of conditions and the following disclaimer in the documentation and/or
     *  other materials provided with the distribution.
     *  * Neither the name of Dash Industry Forum nor the names of its
     *  contributors may be used to endorse or promote products derived from this software
     *  without specific prior written permission.
     *
     *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
     *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     *  POSSIBILITY OF SUCH DAMAGE.
     */

    import IsoBox from '../vo/IsoBox';
    import FactoryMaker from '../../core/FactoryMaker';

    function IsoFile() {

        let instance,
            parsedIsoFile;

        /**
        * @param {string} type
        * @returns {IsoBox|null}
        * @memberof IsoFile#
        */
        function getBox(type) {
            if (!type || !parsedIsoFile || !parsedIsoFile.boxes || (parsedIsoFile.boxes.length === 0) || typeof parsedIsoFile.fetch !== 'function') return null;

            return convertToDashIsoBox(parsedIsoFile.fetch(type));
        }

        /**
        * @param {string} type
        * @returns {Array|null} array of {@link IsoBox}
        * @memberof IsoFile#
        */
        function getBoxes(type) {
            let boxes = [];

            if (!type || !parsedIsoFile || typeof parsedIsoFile.fetchAll !== 'function') {
                return boxes;
            }

            let boxData = parsedIsoFile.fetchAll(type);
            let box;

            for (let i = 0, ln = boxData.length; i < ln; i++) {
                box = convertToDashIsoBox(boxData[i]);

                if (box) {
                    boxes.push(box);
                }
            }

            return boxes;
        }

        /**
        * @param {string} value
        * @memberof IsoFile#
        */
        function setData(value) {
            parsedIsoFile = value;
        }

        /**
        * @returns {IsoBox|null}
        * @memberof IsoFile#
        */
        function getLastBox() {
            if (!parsedIsoFile || !parsedIsoFile.boxes || !parsedIsoFile.boxes.length) return null;

            let type = parsedIsoFile.boxes[parsedIsoFile.boxes.length - 1].type;
            let boxes = getBoxes(type);

            return boxes.length > 0 ? boxes[boxes.length - 1] : null;
        }

        function convertToDashIsoBox(boxData) {
            if (!boxData) return null;

            let box = new IsoBox(boxData);

            if (boxData.hasOwnProperty('_incomplete')) {
                box.isComplete = !boxData._incomplete;
            }

            return box;
        }

        instance = {
            getBox: getBox,
            getBoxes: getBoxes,
            setData: setData,
            getLastBox: getLastBox
        };

        return instance;
    }
    IsoFile.__dashjs_factory_name = 'IsoFile';
    export default FactoryMaker.getClassFactory(IsoFile);

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