/*******************************************************************************
 * Open Behavioral Health Information Technology Architecture (OBHITA.org)
 * 
 * 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 the <organization> 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 <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 * 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.
 ******************************************************************************/
package gov.samhsa.acs.brms.tool;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.googlecode.sardine.Sardine;
import com.googlecode.sardine.SardineFactory;
import com.googlecode.sardine.util.SardineException;

/**
 * The Class FactModelGuvnorUploader uploads the fact model jar to given Guvnor
 * factmodel URI.
 */
public class FactModelGuvnorUploader {

	/** The Constant FACTMODEL_JAR_PATH. */
	private final static String FACTMODEL_JAR_PATH = "../factmodel/target/brms-factmodel.jar";

	/** The Constant LOGGER. */
	private static final Logger LOGGER = LoggerFactory
			.getLogger(FactModelGuvnorUploader.class);

	/**
	 * The main method.
	 * 
	 * @param args
	 *            need 3 the arguments (username, password and
	 *            factmodel-put-url)
	 */
	public static void main(String[] args) {
		if (!isValid(args)) {
			System.exit(1);
		}

		Sardine sardine = begin(args[0], args[1]);

		byte[] data = getFileBytes(FACTMODEL_JAR_PATH);

		put(sardine, args[2], data);
	}

	/**
	 * Checks if is valid.
	 * 
	 * @param args
	 *            the args
	 * @return true, if is valid
	 */
	static boolean isValid(String[] args) {
		if (args.length != 3) {
			LOGGER.error("ERROR: FactModelGuvnorUploader needs 3 arguments: username, password, factmodel-put-url");
			return false;
		}
		return true;
	}

	/**
	 * Begin.
	 * 
	 * @param username
	 *            the username
	 * @param password
	 *            the password
	 * @return the sardine
	 */
	static Sardine begin(String username, String password) {
		Sardine sardine = null;
		try {
			sardine = SardineFactory.begin(username, password);
		} catch (SardineException e) {
			LOGGER.error("ERROR: Connection couldn't be opened.");
			LOGGER.error(e.getMessage(), e);
		}
		return sardine;
	}

	/**
	 * Gets the file bytes.
	 * 
	 * @param filePath
	 *            the file path
	 * @return the file bytes
	 */
	static byte[] getFileBytes(String filePath) {
		byte[] data = null;
		try {
			data = IOUtils.toByteArray(new FileInputStream(filePath));
		} catch (FileNotFoundException e) {
			LOGGER.error("ERROR: File not found");
			LOGGER.error(e.getMessage(), e);
		} catch (IOException e) {
			LOGGER.error("ERROR: IOException");
			LOGGER.error(e.getMessage(), e);
		}
		return data;
	}

	/**
	 * Put.
	 * 
	 * @param sardine
	 *            the sardine
	 * @param putUrl
	 *            the put url
	 * @param data
	 *            the data
	 */
	static void put(Sardine sardine, String putUrl, byte[] data) {
		try {
			sardine.put(putUrl, data);
		} catch (SardineException e) {
			LOGGER.error("ERROR: File couldn't be put.");
			LOGGER.error(e.getMessage(), e);
		}
	}
}