/*
 * Copyright (C) 2016 Didier Clermonté <dclermonte@april.org>
 * Copyright (C) 2016 Christian Pierre Momon <christian.momon@devinsy.fr>
 *
 * This file is part of Siba.
 *
 * Siba is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.dclermonte.siba.cli;

import java.io.File;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.util.ResourceBundle;

import org.apache.commons.compress.archivers.ArchiveException;
import org.apache.commons.lang3.StringUtils;
import org.dclermonte.siba.SibaException;
import org.dclermonte.siba.model.SibaManager;

/**
 * This class CLI is for use from Command Line Interface.
 *
 *
 */
public class SibaCLI

{
	private static final ResourceBundle BUNDLE = ResourceBundle.getBundle("org.dclermonte.siba.cli.messages"); //$NON-NLS-1$

	/**
	 *
	 * This method is called for Backup from CLI.
	 *
	 * @param directoryToSave
	 * @param targetDirectory
	 * @throws ArchiveException
	 * @throws IOException
	 * @throws SibaException
	 */
	public static void backup(final File directoryToSave, final File targetDirectory)
			throws ArchiveException, IOException, SibaException
	{
		File result;
		result = SibaManager.backup(directoryToSave, targetDirectory);
		System.out.println(BUNDLE.getString("confirmDialog.text") + result.getName()); //$NON-NLS-1$
		return;
	}

	/**
	 *
	 * This method is called for Check from CLI.
	 *
	 * @param fileToCheck
	 * @throws NoSuchAlgorithmException
	 * @throws IOException
	 */
	public static void check(final File fileToCheck) throws NoSuchAlgorithmException, IOException

	{
		boolean result;
		result = SibaManager.check(fileToCheck);
		String yourFile = BUNDLE.getString("confirmDialogYourString.text"); //$NON-NLS-1$
		String good = BUNDLE.getString("confirmDialogGood.text"); //$NON-NLS-1$
		String bad = BUNDLE.getString("confirmDialogBad.text"); //$NON-NLS-1$
		if (result)
		{
			System.out.println(yourFile + fileToCheck.getName() + good);
		}
		else
		{
			System.out.println(yourFile + fileToCheck.getName() + bad);
		}
		return;
	}

	/**
	 *
	 * This method send help response.
	 *
	 */
	public static void help()
	{

		System.out.println("usage :");
		System.out.println("Siba :");
		System.out.println("Siba [-h |-help| --help]");
		System.out.println("siba backup directoryToSave [target]");
		System.out.println("siba check [filename | filename.tgz | filename.tgz.md5]");

	}

	/**
	 *
	 * This method launch CLI.
	 *
	 * @param args
	 * @throws ArchiveException
	 * @throws IOException
	 * @throws NoSuchAlgorithmException
	 */
	public static void run(final String[] args)
			throws ArchiveException, IOException, NoSuchAlgorithmException, SibaException
	{
		try
		{
			// This part implements an automate.
			int parameterCount = args.length;
			if (parameterCount == 0)
			{
				help();
			}
			else
			{
				if (StringUtils.equals(args[0], "-h") || StringUtils.equals(args[0], "-help")
						|| StringUtils.equals(args[0], "--help"))
				{
					help();
				}
				else if (StringUtils.equals(args[0], "backup"))
				{
					if (parameterCount == 1)
					{
						System.out.println(BUNDLE.getString("missingDirectoryToSave.text"));
						help();
					}
					else if (parameterCount == 2)
					{
						File directoryToSave = new File(args[1]);
						if (directoryToSave.exists())
						{
							backup(directoryToSave, new File(System.getProperty("user.dir")));
						}
						else
						{
							System.out.println(BUNDLE.getString("directoryToSaveNotExist.text"));
							help();
						}
					}
					else if (parameterCount == 3)
					{
						File directoryToSave = new File(args[1]);
						File targetDirectory = new File(args[2]);
						if (directoryToSave.exists() && targetDirectory.exists())
						{
							backup(directoryToSave, targetDirectory);
						}

						else
						{
							System.out.println(BUNDLE.getString("directoryNotExist.text"));
							help();
						}
					}
					else
					{
						System.out.println(BUNDLE.getString("badUsage.text"));
						help();
					}
				}
				else if (StringUtils.equals(args[0], "check"))
				{
					if (parameterCount == 1)
					{
						System.out.println(BUNDLE.getString("missingFileToCheck.text"));
						help();
					}
					else
					{
						String fileToCheckName;
						if (!args[1].endsWith("tgz") && !args[1].endsWith("md5"))
						{
							fileToCheckName = args[1].concat(".tgz.md5");
						}
						else if (args[1].endsWith("tgz"))
						{
							fileToCheckName = args[1].concat(".md5");
						}
						else
						{
							fileToCheckName = args[1];
						}
						File fileToCheck = new File(fileToCheckName);
						File fileToCheckFinal;
						if (!fileToCheck.isAbsolute())
						{
							fileToCheckFinal = new File(System.getProperty("user.dir") + "/" + fileToCheckName);
						}
						else
						{
							fileToCheckFinal = new File(fileToCheckName);
						}

						if (fileToCheckFinal.exists())
						{
							check(fileToCheckFinal);
						}
						else
						{
							System.out.println(BUNDLE.getString("missingFileToCheck.text"));
							help();
						}
					}
				}
				else
				{
					System.out.println(BUNDLE.getString("badUsage.text"));
					help();
				}

			}
		}
		catch (SibaException nullException)
		{
			System.out.println("SibaException = " + nullException.getMessage());
		}

	}
}