/**
 * Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
 *
 * 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.onebusaway.webapp.actions.where;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Actions;
import org.onebusaway.exceptions.ServiceException;
import org.onebusaway.transit_data.model.AgencyBean;
import org.onebusaway.webapp.impl.WebappArrivalsAndDeparturesModel;
import org.springframework.beans.factory.annotation.Autowired;

import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.conversion.annotations.TypeConversion;

public class StopAction extends AbstractWhereAction implements
    ModelDriven<WebappArrivalsAndDeparturesModel> {

  private static final long serialVersionUID = 1L;

  protected List<String> _ids;

  private Set<String> _routes;

  private String _title;

  private boolean _showTitle = true;

  protected WebappArrivalsAndDeparturesModel _model;

  @Autowired
  public void setModel(WebappArrivalsAndDeparturesModel model) {
    _model = model;
  }

  /**
   * To give more than one Stop ID, the URL must specify id= more than once.
   */
  public void setId(List<String> ids) {
    _ids = new ArrayList<String>(ids);
    _model.setStopIds(_ids);
  }

  public List<String> getId() {
    return _ids;
  }

  /**
   * Supports two styles of URL. It can be comma-seperated, or route= can be
   * given multiple times.
   */
  public void setRoute(List<String> routeLists) {

    _routes = new HashSet<String>();

    for (String routes : routeLists) {
      if (!(routes.length() == 0 || routes.equals("all"))) {
        for (String token : routes.split(",")) {
          _routes.add(token);
        }
      }
    }

    if (!_routes.isEmpty())
      _model.setRouteFilter(_routes);
  }

  public Set<String> getRoutes() {
    return _routes;
  }

  public void setOrder(String order) {
    if (!_model.setOrderFromString(order))
      addFieldError("order", "unknown order value: " + order);
  }

  @TypeConversion(converter = "org.onebusaway.presentation.impl.conversion.DateTimeConverter")
  public void setTime(Date time) {
    _model.setTargetTime(time);
  }

  public void setMinutesBefore(int minutesBefore) {
    _model.setMinutesBefore(minutesBefore);
  }

  public void setMinutesAfter(int minutesAfter) {
    _model.setMinutesAfter(minutesAfter);
  }

  public void setShowArrivals(boolean showArrivals) {
    _model.setShowArrivals(showArrivals);
  }

  public boolean isShowArrivals() {
    return _model.isShowArrivals();
  }

  @Override
  public WebappArrivalsAndDeparturesModel getModel() {
    return _model;
  }

  public void setTitle(String title) {
    _title = title;
  }

  public String getTitle() {
    return _title;
  }

  public void setShowTitle(boolean showTitle) {
    _showTitle = showTitle;
  }

  public boolean isShowTitle() {
    return _showTitle;
  }

  @Override
  @Actions({
      @Action(value = "/where/standard/stop"),
      @Action(value = "/where/iphone/stop"),
      @Action(value = "/where/text/stop"), @Action(value = "/where/sign/stop")})
  public String execute() throws ServiceException {

    if (_ids == null || _ids.isEmpty())
      return INPUT;

    _model.process();

    logUserInteraction("stopIds", _model.getStopIds(), "routeIds",
        _model.getRouteFilter());

    return SUCCESS;
  }

  public boolean testAgenciesWithDisclaimers(List<AgencyBean> agencies) {
    for (AgencyBean agency : agencies) {
      String disclaimer = agency.getDisclaimer();
      if (disclaimer != null && disclaimer.length() > 0)
        return true;
    }
    return false;
  }

  /**
   * Build URL of stops and routes for the Refined Search page.
   */
  public String getStopAndRouteIdsAsUrlParams() {
    StringBuilder sb = new StringBuilder();
    for (String id : _ids) {
      sb.append("id=" + id + "&");
    }
    if (_routes != null) {
      for (String route : _routes) {
        sb.append("route=" + route + "&");
      }
    }
    sb.setLength(sb.length() - 1); // trim the final "&"
    return sb.toString();
  }
}