/**

 * Alt2XML

 * Copyright © 2014 František Kučera (frantovo.cz)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 3 of the License.

 *

 * 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

package cz.frantovo.alt2xml.cli;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.Properties;

import java.util.logging.Level;

import java.util.logging.LogRecord;

import java.util.logging.Logger;

import org.xml.sax.InputSource;

/**

 * Holds options from command line, validates them, combines with configuration and provides derived

 * objects.

 *

 * @author Ing. František Kučera (frantovo.cz)

 */

public class CLIOptions {

	private static final Logger log = Logger.getLogger(CLIOptions.class.getName());

	private File inputFile;

	private InputStream inputStream;

	private String systemId;

	private final Properties readerProperties = new Properties();

	private final Map<String, Boolean> readerFeatures = new HashMap<>();

	private OutputStream outputStream;

	private String action;

	private final Properties actionProperties = new Properties();

	private final List<String> actionData = new ArrayList<>();

	public void validate() throws InvalidOptionsException {

		InvalidOptionsException e = new InvalidOptionsException();

		if (inputFile == null && systemId == null) {

			e.addProblem(new InvalidOptionsException.OptionProblem("Please specify also systemId when reading from a stream (like STDIN) instead of from a file."));

		}

		/**

		 * TODO: validate

		 */

		if (e.hasProblems()) {

			throw e;

		}

	}

	public void setInputFile(File inputFile) {

		this.inputFile = inputFile;

	}

	public void setInputStream(InputStream inputStream) {

		this.inputStream = inputStream;

	}

	public void setSystemId(String systemId) {

		this.systemId = systemId;

	}

	public InputSource getInputSource() {

		InputSource is = new InputSource();

		if (systemId != null) {

			is.setSystemId(systemId);

		}

		if (inputFile != null) {

			if (systemId == null) {

				is.setSystemId(inputFile.toURI().toASCIIString());

			} else {

				try {

					is.setByteStream(new FileInputStream(inputFile));

				} catch (FileNotFoundException e) {

					LogRecord message = new LogRecord(Level.WARNING, "Unable to open file „{0}“ → fallback to SystemId „{1}“");

					message.setParameters(new Object[]{inputFile, systemId});

					message.setThrown(e);

					log.log(message);

				}

			}

		}

		if (inputStream != null) {

			is.setByteStream(inputStream);

		}

		return is;

	}

	public void setOutputStream(OutputStream outputStream) {

		this.outputStream = outputStream;

	}

	public OutputStream getOutputStream() {

		return outputStream;

	}

	public void setAction(String action) {

		this.action = action;

	}

	public String getAction() {

		return action;

	}

	public void addReaderProperty(String name, String value) {

		readerProperties.put(name, value);

	}

	public Properties getReaderProperties() {

		return readerProperties;

	}

	public void addReaderFeature(String name, boolean value) {

		readerFeatures.put(name, value);

	}

	public Map<String, Boolean> getReaderFeatures() {

		return readerFeatures;

	}

	public void addActionProperty(String name, String value) {

		actionProperties.put(name, value);

	}

	public Properties getActionProperties() {

		return actionProperties;

	}

	public void addActionData(String value) {

		actionData.add(value);

	}

	public List<String> getActionData() {

		return actionData;

	}

}