/*
 *
 * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
 * one or more contributor license agreements (see COPYRIGHT for details).
 * The CA licenses this file to you under the GNU Affero General Public
 * License version 3, (the "License"); you may not use this file except in
 * compliance with the License. This file is part of kune.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package cc.kune.core.client.sn;

import cc.kune.common.client.actions.ui.descrip.GuiActionDescCollection;
import cc.kune.common.client.actions.ui.descrip.MenuItemDescriptor;
import cc.kune.common.client.actions.ui.descrip.MenuTitleItemDescriptor;
import cc.kune.core.client.services.ClientFileDownloadUtils;
import cc.kune.core.client.sn.actions.registry.AbstractSNMembersActionsRegistry;
import cc.kune.core.shared.dto.GroupDTO;

import com.google.web.bindery.event.shared.EventBus;
import com.google.inject.Provider;
import com.gwtplatform.mvp.client.Presenter;
import com.gwtplatform.mvp.client.View;
import com.gwtplatform.mvp.client.proxy.Proxy;

// TODO: Auto-generated Javadoc
/**
 * The Class AbstractSNPresenter.
 * 
 * @param <V>
 *          the value type
 * @param <Proxy_>
 *          the generic type
 * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado)
 */
public abstract class AbstractSNPresenter<V extends View, Proxy_ extends Proxy<?>> extends
    Presenter<View, Proxy<?>> {

  /** The Constant MAX_NUM_AVATAR_IN_A_ROW. */
  private static final int MAX_NUM_AVATAR_IN_A_ROW = 6;

  /** The download provider. */
  protected final Provider<ClientFileDownloadUtils> downloadProvider;

  /**
   * Instantiates a new abstract sn presenter.
   * 
   * @param eventBus
   *          the event bus
   * @param view
   *          the view
   * @param proxy
   *          the proxy
   * @param downloadProvider
   *          the download provider
   */
  public AbstractSNPresenter(final EventBus eventBus, final View view, final Proxy<?> proxy,
      final Provider<ClientFileDownloadUtils> downloadProvider) {
    super(eventBus, view, proxy);
    this.downloadProvider = downloadProvider;
  }

  /**
   * Are many.
   * 
   * @param numAvatars
   *          the num avatars
   * @return true, if successful
   */
  protected boolean areMany(final int numAvatars) {
    return numAvatars > MAX_NUM_AVATAR_IN_A_ROW;
  }

  /**
   * Creates the menu items.
   * 
   * @param target
   *          the target
   * @param registry
   *          the registry
   * @param title
   *          the title
   * @return the gui action desc collection
   */
  protected GuiActionDescCollection createMenuItems(final Object target,
      final AbstractSNMembersActionsRegistry registry, final String title) {
    final GuiActionDescCollection items = new GuiActionDescCollection();
    items.add(new MenuTitleItemDescriptor(title));
    for (final Provider<MenuItemDescriptor> provider : registry) {
      final MenuItemDescriptor menuItem = provider.get();
      menuItem.setTarget(target);
      items.add(menuItem);
    }
    return items;
  }

  /**
   * Gets the avatar.
   * 
   * @param group
   *          the group
   * @return the avatar
   */
  protected String getAvatar(final GroupDTO group) {
    return downloadProvider.get().getGroupLogo(group);
  }

}