/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.message.boards.web.internal.upload;

import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.security.permission.ActionKeys;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.TempFileEntryUtil;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portlet.messageboards.service.permission.MBCategoryPermission;
import com.liferay.upload.UploadFileEntryHandler;

import java.io.IOException;
import java.io.InputStream;

import org.osgi.service.component.annotations.Component;

/**
 * @author Ambrín Chaudhary
 */
@Component(service = TempImageMBUploadFileEntryHandler.class)
public class TempImageMBUploadFileEntryHandler
	implements UploadFileEntryHandler {

	@Override
	public FileEntry upload(UploadPortletRequest uploadPortletRequest)
		throws IOException, PortalException {

		ThemeDisplay themeDisplay =
			(ThemeDisplay)uploadPortletRequest.getAttribute(
				WebKeys.THEME_DISPLAY);

		long categoryId = ParamUtil.getLong(uploadPortletRequest, "categoryId");

		MBCategoryPermission.check(
			themeDisplay.getPermissionChecker(), themeDisplay.getScopeGroupId(),
			categoryId, ActionKeys.ADD_FILE);

		String fileName = uploadPortletRequest.getFileName(_PARAMETER_NAME);
		String contentType = uploadPortletRequest.getContentType(
			_PARAMETER_NAME);

		try (InputStream inputStream =
				uploadPortletRequest.getFileAsStream(_PARAMETER_NAME)) {

			String tempFileName = TempFileEntryUtil.getTempFileName(fileName);

			return TempFileEntryUtil.addTempFileEntry(
				themeDisplay.getScopeGroupId(), themeDisplay.getUserId(),
				_TEMP_FOLDER_NAME, tempFileName, inputStream, contentType);
		}
	}

	private static final String _PARAMETER_NAME = "imageSelectorFileName";

	private static final String _TEMP_FOLDER_NAME =
		TempImageMBUploadFileEntryHandler.class.getName();

}