/*
 * JEF - Copyright 2009-2010 Jiyi (mr.jiyi@gmail.com)
 *
 * 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 jef.ui.console;

import java.io.File;

import jef.common.log.LogUtil;
import jef.ui.Commands;
import jef.ui.ConsoleConversation;
import jef.ui.ConsoleShell;
import jef.ui.ProcessHandler;

public class ProcessShell implements ConsoleShell {
	ProcessHandler process;
	AbstractConsoleShell parent;

	public ProcessShell(AbstractConsoleShell console, final String showitem, final File currentFolder) {
		this.parent = console;
		final Thread mainThread = Thread.currentThread();
		Thread t = new Thread() {
			public void run() {
				ProcessHandler flag = Commands.execute(showitem, null, currentFolder);
				unshell(flag.waitfor(), mainThread);
			}
		};
		t.start();
	}

	protected void unshell(int flag, Thread t) {
		if (flag != 0 && flag != 1)
			LogUtil.show("Exit value:" + flag);
		parent.endSubShell(t);
	}

	public void exit() {
	}

	public String getInput(ConsoleConversation<?> consoleConversation, String msg, String... validValues) {
		throw new UnsupportedOperationException();
	}

	public String getPrompt() {
		return "cmd>";
	}

	public ShellResult perform(String str, boolean showPrompt, String... params) {
		if (process != null)
			process.sendCommand(str);
		return ShellResult.CONTINUE;
	}

}