/*******************************************************************************
 * Copyright (c) May 18, 2011 Zend Technologies Ltd. 
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0 
 * which accompanies this distribution, and is available at 
 * http://www.eclipse.org/legal/epl-v10.html  
 *******************************************************************************/
package org.zend.sdkhelp.docs;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.zend.sdkcli.CommandFactory;
import org.zend.sdkcli.CommandType;
import org.zend.sdkcli.internal.commands.AbstractCommand;
import org.zend.sdkcli.internal.logger.CliLogger;
import org.zend.sdkcli.internal.options.DetectOptionUtility;
import org.zend.sdklib.logger.Log;

/**
 * A tool to generate the most updated command line tables
 * 
 * @author Roy, 2011
 * 
 */
public class GenerateManual {

	public static void main(String[] args) throws IOException {

		PrintStream printStream = System.out;
		if (args.length > 0) {
			printStream = new PrintStream(new File(args[0]));
		}

		globalOptions(printStream, AbstractCommand.class);

		printStream.print("<h3>Target actions and options</h3>");
		tableCommands(printStream, CommandType.ADD_TARGET,
				CommandType.REMOVE_TARGET, CommandType.DETECT_TARGET,
				CommandType.LIST_TARGETS);

		printStream.print("<h3>Project actions and options</h3>");
		tableCommands(printStream, CommandType.CREATE_PROJECT,
				CommandType.UPDATE_PROJECT, CommandType.CLONE_PROJECT);

		printStream.print("<h3>Application actions and options</h3>");
		tableCommands(printStream, CommandType.DEPLOY_APPLICATION,
				CommandType.UPDATE_APPLICATION, CommandType.REMOVE_APPLICATION,
				CommandType.REDEPLOY_APPLICATION,
				CommandType.LIST_APPLICATIONS,
				CommandType.DISCOVER_APPLICATION, CommandType.CREATE_PACKAGE);

		printStream.print("<h3>Repository actions and options</h3>");
		tableCommands(printStream, CommandType.ADD_REPOSITORY,
				CommandType.REMOVE_REPOSITORY, CommandType.LIST_REPOSITORIES,
				CommandType.GENERATE_REPOSITORIES);

		printStream.close();
	}

	private static void globalOptions(PrintStream printStream,
			Class<AbstractCommand> class1) throws IOException {

		Log.getInstance().registerLogger(new CliLogger());

		final Options options = new Options();
		DetectOptionUtility.addOption(class1, options, false);

		final Collection os = options.getOptions();
		String[][] blocks = new String[os.size()][];
		int i = 0;
		for (Object object : os) {
			Option o = (Option) object;
			blocks[i++] = new String[] { o.getOpt(), o.getDescription() };
		}
		final InputStream resourceAsStream = GenerateManual.class
				.getResourceAsStream("global.options");
		final BufferedReader reader = new BufferedReader(new InputStreamReader(
				resourceAsStream));
		HtmlTemplate.writeTemplate(reader, printStream, blocks);
	}

	private static void tableCommands(PrintStream printStream,
			CommandType... types) throws IOException {

		ArrayList<String[]> blocks = new ArrayList<String[]>();

		for (CommandType type : types) {
			final Options options = new Options();
			DetectOptionUtility.addOption(CommandFactory.createCommand(type)
					.getClass(), options, true);

			final Collection os = options.getOptions();

			String header = "<td rowspan=\"" + os.size() + "\"><code>"
					+ type.getVerb() + " " + type.getDirectObject()
					+ "</code></td>";

			for (Object object : os) {
				Option o = (Option) object;
				blocks.add(new String[] { header, o.getOpt(),
						o.hasArg() ? "<" + o.getArgName() + ">" : "",
						o.getDescription(), o.isRequired() ? "Required" : "" });
				header = "";
			}
		}
		final InputStream resourceAsStream = GenerateManual.class
				.getResourceAsStream("actions.options");
		final BufferedReader reader = new BufferedReader(new InputStreamReader(
				resourceAsStream));
		HtmlTemplate.writeTemplate(reader, printStream,
				(String[][]) blocks.toArray(new String[blocks.size()][]));
	}
}