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/*
 *     Copyright 2015 Rinat Muhamedgaliev
 *
 *     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 io.github.rmuhamedgaliev.config;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Paths;

/**
 * Config loader class for work with config of JPS
 *
 * @author Rinat Muhamedgaliev
 */
public class ConfigLoader {

//    Follow directory contain all config files
    private final static File CONFIG_DIRECTORY = new File("config");

    /**
     * Follow void method check {@link ConfigLoader#CONFIG_DIRECTORY} exists.
     * If directory not exists, method create itself.
     * 
     * Follow method must call only before read all plugins
     */
    public void prepareConfig() {
        if (!CONFIG_DIRECTORY.exists()) {
            CONFIG_DIRECTORY.mkdir();
        }
        copyLogBackConfig();
    }

    /**
     * Copy file {@link logback} from resource directory to configure logback
     */
    private void copyLogBackConfig() {
        File logbackConfigFile = new File("config/logback.xml");
        if (!logbackConfigFile.exists() && !logbackConfigFile.canRead()) {
            InputStream stream = this.getClass().getClassLoader().getResourceAsStream("logback");
            try {
                Files.copy(stream, Paths.get("config/logback.xml"));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }
}