/*
 * Copyright (c) 2015-2019. Developed by Hedgecode.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.hedgecode.xml.xspf;

import java.io.File;
import java.io.UnsupportedEncodingException;

import javax.xml.bind.JAXBException;

import org.hedgecode.xml.xspf.validate.ValidateException;

import static org.hedgecode.xml.xspf.XSPFConstants.Format;
import static org.hedgecode.xml.xspf.XSPFConstants.Version;

/**
 * XSPF API for external applications.
 *
 * @author Dmitry Samoshin aka gotty
 */
public final class XSPF {

    public static Playlist create() {
        return create(Format.RELAX_NG);
    }

    public static Playlist create(Format format) {
        return new XSPFPlaylist(format);
    }

    public static Playlist create(Version version) {
        return new XSPFPlaylist(version);
    }

    public static Playlist create(String key) {
        Format format = Format.byName(key);
        if (format != null)
            return create(format);

        Version version = Version.byName(key);
        if (version != null)
            return create(version);

        return null;
    }

    public static void generate(Playlist playlist, File outputFile) throws XSPFException {
        if (playlist == null)
            throw new XSPFException(XSPFConstants.Errors.NULL_PLAYLIST);
        try {
            playlist.write(outputFile);
        } catch (JAXBException e) {
            throw new XSPFException(XSPFConstants.Errors.BINDING_ERROR);
        }
    }

    public static String generate(Playlist playlist) throws XSPFException {
        if (playlist == null)
            throw new XSPFException(XSPFConstants.Errors.NULL_PLAYLIST);
        String result;
        try {
            result = playlist.getAsString();
        } catch (JAXBException e) {
            throw new XSPFException(XSPFConstants.Errors.BINDING_ERROR);
        } catch (UnsupportedEncodingException e) {
            throw new XSPFException(XSPFConstants.Errors.ENCODING_ERROR);
        }
        return result;
    }

    public static Playlist create(File inputFile) throws JAXBException {
        Playlist playlist = PlaylistFactory.createPlaylist(Format.XSD);
        playlist.read(inputFile);
        return playlist;
    }

    public static Track createTrack(String location, String title) {
        Track track = PlaylistFactory.createTrack();
        track.addLocation(location);
        track.setTitle(title);
        return track;
    }

    public static Track addTrack(Playlist playlist, String location, String title) {
        Track track = createTrack(location, title);
        playlist.addTrack(track);
        return track;
    }

    public static void addTrack(Playlist playlist, Track track) {
        playlist.addTrack(track);
    }

    public static void addTracks(
            Playlist playlist, Playlist tracksPlaylist) throws XSPFException
    {
        if (playlist == null)
            throw new XSPFException(XSPFConstants.Errors.NULL_PLAYLIST);
        if (tracksPlaylist != null) {
            for (Track track : tracksPlaylist.getTracks()) {
                playlist.addTrack(track);
            }
        }
    }

    public static void setProperty(String name, Object value) {
        XSPFProperties.setProperty(name, value);
    }

    public static int validate(File inputFile) throws JAXBException {
        int result = 0;
        Playlist playlist = create(inputFile);
        if (playlist != null)
            try {
                playlist.validate();
            } catch (ValidateException e) {
                result = e.getCode();
            }
        return result;
    }

    public static String get(int code) {
        return null; // todo
    }

}