/*
 * LinShare is an open source filesharing software, part of the LinPKI software
 * suite, developed by Linagora.
 * 
 * Copyright (C) 2013 LINAGORA
 * 
 * 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, provided you comply with the Additional Terms applicable for
 * LinShare software by Linagora pursuant to Section 7 of the GNU Affero General
 * Public License, subsections (b), (c), and (e), pursuant to which you must
 * notably (i) retain the display of the “LinShare™” trademark/logo at the top
 * of the interface window, the display of the “You are using the Open Source
 * and free version of LinShare™, powered by Linagora © 2009–2013. Contribute to
 * Linshare R&D by subscribing to an Enterprise offer!” infobox and in the
 * e-mails sent with the Program, (ii) retain all hypertext links between
 * LinShare and linshare.org, between linagora.com and Linagora, and (iii)
 * refrain from infringing Linagora intellectual property rights over its
 * trademarks and commercial brands. Other Additional Terms apply, see
 * <http://www.linagora.com/licenses/> for more details.
 * 
 * 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 and
 * its applicable Additional Terms for LinShare along with this program. If not,
 * see <http://www.gnu.org/licenses/> for the GNU Affero General Public License
 * version 3 and <http://www.linagora.com/licenses/> for the Additional Terms
 * applicable to LinShare software.
 */
package org.linagora.linshare.webservice.impl;

import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.List;

import javax.ws.rs.Consumes;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.cxf.jaxrs.ext.multipart.Multipart;
import org.apache.cxf.jaxrs.ext.multipart.MultipartBody;
import org.linagora.linshare.core.domain.entities.Guest;
import org.linagora.linshare.core.domain.entities.User;
import org.linagora.linshare.core.exception.BusinessException;
import org.linagora.linshare.core.facade.webservice.user.DocumentFacade;
import org.linagora.linshare.core.facade.webservice.user.ShareFacade;
import org.linagora.linshare.core.utils.StringPredicates;
import org.linagora.linshare.webservice.PluginCompatibilityRestService;
import org.linagora.linshare.webservice.WebserviceBase;
import org.linagora.linshare.webservice.dto.DocumentDto;
import org.linagora.linshare.webservice.dto.SimpleStringValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class PluginCompatibilityRestServiceImpl extends WebserviceBase implements PluginCompatibilityRestService {

	private static final Logger logger = LoggerFactory.getLogger(PluginCompatibilityRestServiceImpl.class);

	private final DocumentFacade webServiceDocumentFacade;
	private final ShareFacade webServiceShareFacade;

	public PluginCompatibilityRestServiceImpl(final DocumentFacade webServiceDocumentFacade, final ShareFacade facade) {
		this.webServiceDocumentFacade = webServiceDocumentFacade;
		this.webServiceShareFacade = facade;
	}

	@GET
	@Path("/plugin/information")
	@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
	@Override
	public SimpleStringValue getInformation() {
		return new SimpleStringValue("api-version-1");
	}

	@POST
	@Path("/share/multiplesharedocuments")
	@Override
	public void multiplesharedocuments(@FormParam("targetMail") String targetMail, @FormParam("file") List<String> uuid,
			@FormParam("securedShare") @DefaultValue("0") int securedShare, @FormParam("message") @DefaultValue("") String message,
			@FormParam("inReplyTo") @DefaultValue("") String inReplyTo, @FormParam("references") @DefaultValue("") String references)
			throws BusinessException {
		User actor;

		actor = webServiceShareFacade.checkAuthentication();
		if ((actor instanceof Guest && !actor.getCanUpload()))
			throw giveRestException(HttpStatus.SC_FORBIDDEN, "You are not authorized to use this service");
		CollectionUtils.filter(uuid, StringPredicates.isNotBlank());
		if (uuid.isEmpty())
			throw giveRestException(HttpStatus.SC_BAD_REQUEST, "Missing parameter file");
		webServiceShareFacade.multiplesharedocuments(targetMail, uuid, securedShare, message, inReplyTo, references);
	}

	/**
	 * upload a file in user's space. send file inside a form
	 */
	@POST
	@Path("/document/upload")
	@Consumes(MediaType.MULTIPART_FORM_DATA)
	@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
	@Override
	public DocumentDto uploadfile(@Multipart(value = "file") InputStream theFile,
			@Multipart(value = "description", required = false) String description,
			@Multipart(value = "filename", required = false) String givenFileName, MultipartBody body) throws BusinessException {
		User actor = webServiceDocumentFacade.checkAuthentication();
		String fileName;
		String comment = (description == null) ? "" : description;

		if ((actor instanceof Guest && !actor.getCanUpload())) {
			throw giveRestException(HttpStatus.SC_FORBIDDEN, "You are not authorized to use this service");
		}
		if (theFile == null) {
			throw giveRestException(HttpStatus.SC_BAD_REQUEST, "Missing file (check parameter file)");
		}
		if (givenFileName == null || givenFileName.isEmpty()) {
			// parameter givenFileName is optional
			// so need to search this information in the header of the
			// attachement (with id file)
			fileName = body.getAttachment("file").getContentDisposition().getParameter("filename");
		} else {
			fileName = givenFileName;
		}

		try {
			byte[] bytes = fileName.getBytes("ISO-8859-1");
			fileName = new String(bytes, "UTF-8");
		} catch (UnsupportedEncodingException e1) {
			logger.error("Can not encode file name " + e1.getMessage());
		}

		// comment can not be null ?
		return webServiceDocumentFacade.uploadfile(theFile, fileName, comment);
	}
}
