/*
 * Copyright 2007 - 2016 the original author or authors.
 *
 * 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 net.sf.jailer.ui.databrowser;

import java.io.File;

import net.sf.jailer.CommandLineParser;
import net.sf.jailer.Jailer;

/**
 * Holds information about the context, in which the data browser is used.
 * 
 * @author Ralf Wisser
 */
public class DataBrowserContext {

	private static String STANDALONE_APP_NAME = "DBeauty";
	private static String STANDALONE_APP_VERSION = "2.7.1";
	
	private static boolean supportsDataModelUpdates = true;
	private static Boolean standAlone = null;

	public static synchronized boolean isSupportsDataModelUpdates() {
		return supportsDataModelUpdates;
	}

	public static synchronized void setSupportsDataModelUpdates(
			boolean supportsDataModelUpdates) {
		DataBrowserContext.supportsDataModelUpdates = supportsDataModelUpdates;
	}

	public static synchronized boolean isStandAlone() {
		if (standAlone == null) {
			try {
				File samf = CommandLineParser.getInstance().newFile(".standalone");
				standAlone = samf.exists();
			} catch (Throwable e) {
				standAlone = false;
			}
		}
		return standAlone;
	}

	public static String getAppName(boolean shortName) {
		if (isStandAlone()) {
			return STANDALONE_APP_NAME + " " + STANDALONE_APP_VERSION + (shortName? "" : " - Relational Data Browser");
		}
		return Jailer.APPLICATION_NAME + " " + Jailer.VERSION + (shortName? "" : " - Relational Data Browser");
	}
	
	public static String getAppName() {
		if (isStandAlone()) {
			return STANDALONE_APP_NAME;
		}
		return Jailer.APPLICATION_NAME;
	}
	
}
