/**
 * Copyright (c) 2015, Lucee Assosication Switzerland. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package lucee.runtime.script;

import java.io.File;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.servlet.ServletException;

import lucee.cli.servlet.ServletConfigImpl;
import lucee.cli.servlet.ServletContextImpl;
import lucee.loader.engine.CFMLEngine;
import lucee.loader.engine.CFMLEngineFactory;

public abstract class BaseScriptEngineFactory implements ScriptEngineFactory {

	private final ScriptEngineFactory factory;

	public BaseScriptEngineFactory(final boolean tag, final int dialect) throws ServletException {
		try {
			
		System.setProperty("lucee.cli.call", "true");

		// returns null when not used within Lucee
		CFMLEngine engine = null;
		try {
			engine = CFMLEngineFactory.getInstance();
		} catch (final RuntimeException re) {
		}

		// create Engine
		if (engine == null) {
			final String servletName = "";
			final Map<String, Object> attributes = new HashMap<String, Object>();
			final Map<String, String> initParams = new HashMap<String, String>();
			final File root = new File("."); // working directory that the java command was called from

			final ServletContextImpl servletContext = new ServletContextImpl(
					root, attributes, initParams, 1, 0);
			final ServletConfigImpl servletConfig = new ServletConfigImpl(
					servletContext, servletName);
			engine = CFMLEngineFactory.getInstance(servletConfig);
		}

		factory = tag ? CFMLEngineFactory.getInstance().getTagEngineFactory(
				dialect) : CFMLEngineFactory.getInstance()
				.getScriptEngineFactory(dialect);

		}
		catch(ServletException se) {
			se.printStackTrace();
			throw se;
		}
		catch(RuntimeException re) {
			re.printStackTrace();
			throw re;
		}
	}

	@Override
	public String getEngineName() {
		return factory.getEngineName();
	}

	@Override
	public String getEngineVersion() {
		return factory.getEngineVersion();
	}

	@Override
	public List<String> getExtensions() {
		return factory.getExtensions();
	}

	@Override
	public List<String> getMimeTypes() {
		return factory.getMimeTypes();
	}

	@Override
	public List<String> getNames() {
		return factory.getNames();
	}

	@Override
	public String getLanguageName() {
		return factory.getLanguageName();
	}

	@Override
	public String getLanguageVersion() {
		return factory.getLanguageVersion();
	}

	@Override
	public Object getParameter(final String key) {
		return factory.getParameter(key);
	}

	@Override
	public String getMethodCallSyntax(final String obj, final String m,
			final String... args) {
		return factory.getMethodCallSyntax(obj, m, args);
	}

	@Override
	public String getOutputStatement(final String toDisplay) {
		return factory.getOutputStatement(toDisplay);
	}

	@Override
	public String getProgram(final String... statements) {
		return factory.getProgram(statements);
	}

	@Override
	public ScriptEngine getScriptEngine() {
		return factory.getScriptEngine();
	}
}