ShowUserPhotoFormHandler.java

/*
 * Copyright (c) 2006-2009 by Dirk Riehle, http://dirkriehle.com
 *
 * This file is part of the Wahlzeit photo rating application.
 *
 * 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 org.wahlzeit.handlers;

import org.wahlzeit.model.AccessRights;
import org.wahlzeit.model.ModelConfig;
import org.wahlzeit.model.Photo;
import org.wahlzeit.model.PhotoId;
import org.wahlzeit.model.PhotoManager;
import org.wahlzeit.model.User;
import org.wahlzeit.model.UserManager;
import org.wahlzeit.model.UserSession;
import org.wahlzeit.services.LogBuilder;
import org.wahlzeit.utils.HtmlUtil;
import org.wahlzeit.utils.StringUtil;
import org.wahlzeit.webparts.WebPart;

import java.util.Map;
import java.util.logging.Logger;

/**
 * A handler class for a specific web form.
 */
public class ShowUserPhotoFormHandler extends AbstractWebFormHandler {

	private static final Logger log = Logger.getLogger(ShowUserPhotoFormHandler.class.getName());


	/**
	 *
	 */
	public ShowUserPhotoFormHandler() {
		initialize(PartUtil.SHOW_USER_PHOTO_FORM_FILE, AccessRights.USER);
	}

	/**
	 *
	 */
	protected void doMakeWebPart(UserSession us, WebPart part) {
		PhotoId photoId = us.getPhotoId();
		Photo photo = PhotoManager.getInstance().getPhoto(photoId);
		String id = photo.getId().asString();
		ModelConfig config = us.getClient().getLanguageConfiguration();
		part.addString(Photo.ID, id);
		part.addString(Photo.THUMB, getPhotoThumb(us, photo));

		part.addString(Photo.PRAISE, photo.getPraiseAsString(config));

		String tags = photo.getTags().asString();
		tags = !StringUtil.isNullOrEmptyString(tags) ? tags : config.getNoTags();
		part.maskAndAddString(Photo.TAGS, tags);

		String photoStatus = config.asValueString(photo.getStatus());
		part.addString(Photo.STATUS, photoStatus);

		part.addString(Photo.UPLOADED_ON, config.asDateString(photo.getCreationTime()));
		part.addString(Photo.LINK, HtmlUtil.asHref(getResourceAsRelativeHtmlPathString(id)));
	}

	/**
	 *
	 */
	protected boolean isWellFormedPost(UserSession us, Map args) {
		String id = us.getAsString(args, Photo.ID);
		Photo photo = PhotoManager.getInstance().getPhoto(id);
		return (photo != null) && us.isPhotoOwner(photo);
	}

	/**
	 *
	 */
	protected String doHandlePost(UserSession us, Map args) {
		String result = PartUtil.SHOW_USER_HOME_PAGE_NAME;

		String id = us.getAndSaveAsString(args, Photo.ID);
		Photo photo = PhotoManager.getInstance().getPhoto(id);

		UserManager userManager = UserManager.getInstance();
		User user = userManager.getUserById(photo.getOwnerId());
		if (us.isFormType(args, "edit")) {
			us.setPhotoId(photo.getId());
			result = PartUtil.EDIT_USER_PHOTO_PAGE_NAME;
		} else if (us.isFormType(args, "tell")) {
			us.setPhotoId(photo.getId());
			result = PartUtil.TELL_FRIEND_PAGE_NAME;
		} else if (us.isFormType(args, "select")) {
			user.setUserPhoto(photo);
			us.setClient(user);
			userManager.saveClient(user);
			log.info(LogBuilder.createUserMessage().
					addAction("Select user photo").
					addParameter("Photo", id).toString());
		} else if (us.isFormType(args, "delete")) {
			photo.setStatus(photo.getStatus().asDeleted(true));
			PhotoManager.getInstance().savePhoto(photo);
			if (user.getUserPhoto() == photo) {
				user.setUserPhoto(null);
				userManager.saveClient(user);
			}
			log.info(LogBuilder.createUserMessage().
					addAction("Deselect user photo").toString());
		}

		return result;
	}

}