/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat 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; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat 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 Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.gateway.service.commands.http.handlers;

import java.io.IOException;

import javax.servlet.ServletContext;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import com.redhat.thermostat.gateway.common.core.servlet.BasicResourceHandler;
import com.redhat.thermostat.gateway.common.core.servlet.GlobalConstants;

@Path("/")
public class StaticResourcesHandler extends BasicResourceHandler {

    @Path("{fileName: .+(\\.(yaml|html))}")
    @GET
    @Produces({MediaType.TEXT_PLAIN, MediaType.TEXT_HTML})
    public Response getFileAsTextOrHtml(@PathParam("fileName") String fileName) throws IOException {
        MediaType type = MediaType.TEXT_PLAIN_TYPE;
        if (fileName.endsWith(".html")) {
            type = MediaType.TEXT_HTML_TYPE;
        }
        return getFileAsResponse(StaticResourcesHandler.class.getClassLoader(), fileName, type);
    }

    // "version" is mapped to this servlet and comes here as '/'
    @Path("/")
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public Response getVersion(@Context ServletContext context) throws IOException {
        String version = context.getInitParameter(GlobalConstants.SERVICE_VERSION_KEY);
        String response = "{ \"version\": \"" + version + "\" }";
        return Response.ok(response).build();
    }
}