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package org.apidesign.bck2brwsr.dew;

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.util.logging.Logger;

import org.glassfish.grizzly.http.Method;

import org.glassfish.grizzly.http.server.HttpHandler;

import org.glassfish.grizzly.http.server.Request;

import org.glassfish.grizzly.http.server.Response;

import org.glassfish.grizzly.http.util.HttpStatus;

import org.json.JSONObject;

import org.json.JSONTokener;

/**

 *

 * @author phrebejk

 */

public class Dew extends HttpHandler {

    private String html = "Nazdar!";

    private String java = "class C {\n}\n";

    @Override

    public void service(Request request, Response response) throws Exception {

        if ( request.getMethod() == Method.POST ) {

            InputStream is = request.getInputStream();

            JSONTokener tok = new JSONTokener(new InputStreamReader(is));

            JSONObject obj = new JSONObject(tok);

            html = obj.getString("html");

            java = obj.getString("java");

            LOG.info(html);

            LOG.info(java);

            response.getOutputStream().write("[]".getBytes());

            response.setStatus(HttpStatus.OK_200);

            return;

        }

        String r = request.getHttpHandlerPath();

        if (r == null || r.equals("/")) {

            r = "index.html";

        }

        if (r.equals("/result.html")) {

            response.setContentType("text/html");

            response.getOutputBuffer().write(html);

            response.setStatus(HttpStatus.OK_200);

            return;

        }

        if (r.startsWith("/")) {

            r = r.substring(1);

        }

        if (r.endsWith(".html") || r.endsWith(".xhtml")) {

            response.setContentType("text/html");

        }

        OutputStream os = response.getOutputStream();

        try (InputStream is = Dew.class.getResourceAsStream(r) ) {

            copyStream(is, os, request.getRequestURL().toString() );

        } catch (IOException ex) {

            response.setDetailMessage(ex.getLocalizedMessage());

            response.setError();

            response.setStatus(404);

        }

    }

    private static final Logger LOG = Logger.getLogger(Dew.class.getName());

    static void copyStream(InputStream is, OutputStream os, String baseURL) throws IOException {

        for (;;) {

            int ch = is.read();

            if (ch == -1) {

                break;

            }

            os.write(ch);            

        }

    }

}