/*
 * $Id$
 *
 * This file is part of the Cloud Services Integration Platform (CSIP),
 * a Model-as-a-Service framework, API and application suite.
 *
 * 2012-2022, Olaf David and others, OMSLab, Colorado State University.
 *
 * OMSLab licenses this file to you under the MIT license.
 * See the LICENSE file in the project root for more information.
 */
package csip;

import csip.utils.JSONUtils;
import csip.utils.Services;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.http.HttpServletRequest;

import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;

/**
 * Catalog service
 *
 * @author wlloyd,od
 */
@Path("")
public class CatalogService {

  static final Logger LOG = Config.LOG;


  @GET
  @Produces(MediaType.TEXT_PLAIN)
  public String getTextCatalog(@Context HttpServletRequest httpReq) {
    return getJSONCatalog(httpReq);
  }


  @GET
  @Produces(MediaType.APPLICATION_JSON)
  public String getJSONCatalog(@Context HttpServletRequest httpReq) {
    LOG.log(Level.INFO, "HTTP/GET {0}", httpReq.getRequestURL().toString());

    Registry r = Config.getRegistry();
    JSONArray o = new JSONArray();
    try {
      String host = Utils.getPublicRequestURL(httpReq);
      if (!host.endsWith("/"))
        host += "/";

      for (Class<?> c : r.getServices()) {
        String path = host + Utils.getServicePath(c);
        JSONObject info = Utils.getServiceInfo(c);
        info.put(ModelDataService.KEY_SERVICE_URL, path);
        o.put(info);
      }
      return o.toString(2).replace("\\/", "/");
    } catch (JSONException ex) {
      o.put(JSONUtils.error(ex.getMessage()));
      LOG.log(Level.SEVERE, null, ex);
    }
    return o.toString().replace("\\/", "/");
  }
}