package cz.frantovo.alt2xml.vstup;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.HashMap;

import java.util.Map;

import org.json.simple.parser.JSONParser;

import org.json.simple.parser.ParseException;

import org.xml.sax.ContentHandler;

import org.xml.sax.DTDHandler;

import org.xml.sax.EntityResolver;

import org.xml.sax.ErrorHandler;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.SAXNotRecognizedException;

import org.xml.sax.SAXNotSupportedException;

import org.xml.sax.XMLReader;

/**

 *

 * @author fiki

 */

public class SuperReader implements XMLReader {

	private ContentHandler contentHandler;

	private ErrorHandler errorHandler;

	private DTDHandler dtdHandler;

	private EntityResolver entityResolver;

	private Map<String, Object> konfigurace = new HashMap<>();

	@Override

	public boolean getFeature(String name) throws SAXNotRecognizedException, SAXNotSupportedException {

		throw new SAXNotSupportedException("Zatím není podporováno.");

	}

	@Override

	public void setFeature(String name, boolean value) throws SAXNotRecognizedException, SAXNotSupportedException {

		throw new SAXNotSupportedException("Zatím není podporováno.");

	}

	@Override

	public Object getProperty(String name) throws SAXNotRecognizedException, SAXNotSupportedException {

		return konfigurace.get(name);

	}

	@Override

	public void setProperty(String name, Object value) throws SAXNotRecognizedException, SAXNotSupportedException {

		konfigurace.put(name, value);

	}

	@Override

	public void setEntityResolver(EntityResolver entityResolver) {

		this.entityResolver = entityResolver;

	}

	@Override

	public EntityResolver getEntityResolver() {

		return entityResolver;

	}

	@Override

	public void setDTDHandler(DTDHandler dtdHandler) {

		this.dtdHandler = dtdHandler;

	}

	@Override

	public DTDHandler getDTDHandler() {

		return dtdHandler;

	}

	@Override

	public void setContentHandler(ContentHandler contentHandler) {

		this.contentHandler = contentHandler;

	}

	@Override

	public ContentHandler getContentHandler() {

		return contentHandler;

	}

	@Override

	public void setErrorHandler(ErrorHandler errorHandler) {

		this.errorHandler = errorHandler;

	}

	@Override

	public ErrorHandler getErrorHandler() {

		return errorHandler;

	}

	@Override

	public void parse(InputSource input) throws IOException, SAXException {

		/**

		 * TODO: rozpornat formát vstupu a podle toho delegovat

		 */

		JSONParser p = new JSONParser();

		InputStreamReader vstup = new InputStreamReader(input.getByteStream());

		JsonSimpleContentHandler handler = new JsonSimpleContentHandler(contentHandler);

		try {

			p.parse(vstup, handler);

		} catch (ParseException e) {

			throw new SAXException("Chyba při načítání JSONu", e);

		}

	}

	@Override

	public void parse(String systemId) throws IOException, SAXException {

		// TODO: dopsat

		throw new SAXException("Zatím není podporováno.");

	}

}