/*
 * Copyright 2011 Global Biodiversity Information Facility (GBIF)
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gbif.checklistbank.search.ws.guice;

import org.gbif.checklistbank.search.inject.SearchModule;
import org.gbif.ws.filter.JsonpResponseFilter;
import org.gbif.ws.filter.RequestHeaderParamUpdateFilter;

import java.util.HashMap;
import java.util.Map;

import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.servlet.GuiceServletContextListener;
import com.sun.jersey.api.core.PackagesResourceConfig;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.guice.JerseyServletModule;
import com.sun.jersey.guice.spi.container.servlet.GuiceContainer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ChecklistBankSearchWsModule extends GuiceServletContextListener {

  private static class ChecklistBankSearchWsJerseyModule extends JerseyServletModule {

    @Override
    protected void configureServlets() {
      Map<String, String> params = new HashMap<String, String>(2);

      // Configure automatic JSON output for Jersey
      params.put(JSONConfiguration.FEATURE_POJO_MAPPING, "true");

      // Let Jersey look for root resources and Providers automatically
      params.put(PackagesResourceConfig.PROPERTY_PACKAGES, "org.gbif.checklistbank.search.ws,org.gbif.ws.provider");

      // use jsonp and language header update filter
      // use jsonp and language header update filter
      params
        .put("com.sun.jersey.spi.container.ContainerRequestFilters", RequestHeaderParamUpdateFilter.class.getName());
      params.put("com.sun.jersey.spi.container.ContainerResponseFilters", JsonpResponseFilter.class.getName());

      serve("/*").with(GuiceContainer.class, params);
    }
  }

  private static final Logger LOG = LoggerFactory.getLogger(ChecklistBankSearchWsModule.class);

  @Override
  protected Injector getInjector() {
    try {
      return Guice.createInjector(new SearchModule(), new ChecklistBankSearchWsJerseyModule());
    } catch (Exception e) {
      LOG.error("Startup of checklistbank-search-ws failed", e);
      throw new RuntimeException("Initialization failed. Nothing we can do about it.", e);
    }
  }

}