/**
 * Copyright 2014 
 * SMEdit https://github.com/StarMade/SMEdit
 * SMTools https://github.com/StarMade/SMTools
 *
 * 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 jo.util.io;

import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;

import jo.util.GlobalConfiguration;
import jo.util.Paths;

/**
 * @author Robert Barefoot - version 1.0
 */
public final class PreferenceData {

    private final int type;
    private final File file;

    public PreferenceData(final int type) {
        this.type = type;
        file = new File(Paths.getSettingsDirectory()
                + File.separator + "pref" + type + ".dat");
        try {
            if (!file.exists()) {
                file.createNewFile();
                switch (type) {
                    case 1:
                        set(new byte[]{24, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                            1, 2, 0, 0, 0, 3, 1, 0, 1, 0, 0, 4, 8, 0, 0, 0,
                            127, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 4, 0, 1, 2, 0});
                        break;

                    case 2:
                        set(new byte[]{1, 0, 19, 3, -38, 0, 0, 0, 1, 3, -37, 0,
                            0, 0, 1, 3, -30, 0, 0, 0, 2, 3, -28, -1, -1, -1,
                            -1, 3, -27, -1, -1, -1, -1, 3, -26, -1, -1, -1, -1,
                            3, -25, -1, -1, -1, -1, 4, 11, 0, 0, 0, 79, 4, 12,
                            0, 0, 0, 74, 4, 13, -1, -1, -1, -1, 4, 28, -1, -1,
                            -1, -1, 4, -40, 0, 0, 0, 3, 4, -6, 0, 0, 0, 67, 4,
                            -3, 0, 0, 0, 0, 5, 35, -1, -1, -1, -1, 5, 36, -1,
                            -1, -1, -1, 5, -122, 0, 0, 0, 1, 5, -115, -1, -1,
                            -1, -1, 5, -107, -1, -1, -1, -1});
                        break;
                }
            }
        } catch (final IOException ignored) {
        }
    }

    private byte[] checkPrefs(final byte[] data) {
        switch (type) {

            case 1: {
                if (data.length <= 40) {
                    break;
                }

                data[19] = 3; // Graphics Mode
            }

        }

        return data;
    }

    public byte[] get() {
        try {
            final RandomAccessFile raf = new RandomAccessFile(file, "rw");
            final byte[] b = new byte[(int) raf.length()];
            raf.readFully(b);

            return checkPrefs(b);
        } catch (final IOException ioe) {
            return new byte[0];
        }
    }

    public void set(byte[] data) {
        data = checkPrefs(data);

        try {
            final RandomAccessFile raf = new RandomAccessFile(file, "rw");
            raf.write(data);
        } catch (final IOException ignored) {
        }
    }
}