/*
* Copyright 1998-2017 Linux.org.ru
* 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 ru.org.linux.comment;
import com.google.common.base.Strings;
import com.google.common.collect.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import ru.org.linux.site.ApiDeleteInfo;
import ru.org.linux.site.DeleteInfo;
import ru.org.linux.site.Template;
import ru.org.linux.spring.dao.DeleteInfoDao;
import ru.org.linux.spring.dao.MessageText;
import ru.org.linux.spring.dao.MsgbaseDao;
import ru.org.linux.spring.dao.UserAgentDao;
import ru.org.linux.topic.Topic;
import ru.org.linux.topic.TopicPermissionService;
import ru.org.linux.user.*;
import ru.org.linux.util.bbcode.LorCodeService;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@Service
public class CommentPrepareService {
@Autowired
private UserDao userDao;
@Autowired
private LorCodeService lorCodeService;
@Autowired
private MsgbaseDao msgbaseDao;
@Autowired
private TopicPermissionService topicPermissionService;
@Autowired
private UserService userService;
@Autowired
private DeleteInfoDao deleteInfoDao;
@Autowired
private UserAgentDao userAgentDao;
@Autowired
private RemarkDao remarkDao;
private PreparedComment prepareComment(
@Nonnull Comment comment,
boolean secure
) throws UserNotFoundException {
MessageText messageText = msgbaseDao.getMessageText(comment.getId());
User author = userDao.getUserCached(comment.getUserid());
return prepareComment(messageText, author, null, comment, null, secure, null, null);
}
private PreparedComment prepareComment(
MessageText messageText,
User author,
@Nullable String remark,
@Nonnull Comment comment,
CommentList comments,
boolean secure,
Template tmpl,
Topic topic
) throws UserNotFoundException {
String processedMessage = prepareCommentText(messageText, !topicPermissionService.followAuthorLinks(author));
ReplyInfo replyInfo = null;
boolean deletable = false;
boolean editable = false;
if (comments != null) {
if (comment.getReplyTo() != 0) {
CommentNode replyNode = comments.getNode(comment.getReplyTo());
if (replyNode!=null) {
Comment reply = replyNode.getComment();
boolean samePage = false;
if (tmpl != null) {
int replyPage = comments.getCommentPage(reply, tmpl.getProf());
samePage = comments.getCommentPage(comment, tmpl.getProf()) == replyPage;
}
String replyAuthor = userDao.getUserCached(reply.getUserid()).getNick();
replyInfo = new ReplyInfo(
reply.getId(),
replyAuthor,
Strings.emptyToNull(reply.getTitle().trim()),
reply.getPostdate(),
samePage
);
}
}
boolean haveAnswers = comments.getNode(comment.getId()).isHaveAnswers();
if (tmpl != null && topic != null) {
final User currentUser = tmpl.getCurrentUser();
deletable = topicPermissionService.isCommentDeletableNow(
comment,
currentUser,
topic,
haveAnswers
);
if (currentUser != null) {
editable = topicPermissionService.isCommentEditableNow(
comment,
currentUser,
haveAnswers,
topic
);
}
}
}
Userpic userpic = null;
if (tmpl != null && tmpl.getProf().isShowPhotos()) {
userpic = userService.getUserpic(
author,
tmpl.getProf().getAvatarMode(),
false
);
}
ApiUserRef ref = userService.ref(author, tmpl!=null?tmpl.getCurrentUser():null);
ApiDeleteInfo deleteInfo = loadDeleteInfo(comment);
EditSummary editSummary = loadEditSummary(comment);
String postIP = null;
String userAgent = null;
if (tmpl!=null && tmpl.isModeratorSession()) {
postIP = comment.getPostIP();
userAgent = userAgentDao.getUserAgentById(comment.getUserAgentId());
}
return new PreparedComment(comment, ref, processedMessage, replyInfo,
deletable, editable, remark, userpic, deleteInfo, editSummary,
postIP, userAgent);
}
private ApiDeleteInfo loadDeleteInfo(Comment comment) throws UserNotFoundException {
ApiDeleteInfo deleteInfo = null;
if (comment.isDeleted()) {
DeleteInfo info = deleteInfoDao.getDeleteInfo(comment.getId());
if (info!=null) {
deleteInfo = new ApiDeleteInfo(
userDao.getUserCached(info.getUserid()).getNick(),
info.getReason()
);
}
}
return deleteInfo;
}
private EditSummary loadEditSummary(Comment comment) throws UserNotFoundException {
EditSummary editSummary = null;
if (comment.getEditCount()>0) {
editSummary = new EditSummary(
userDao.getUserCached(comment.getEditorId()).getNick(),
comment.getEditDate(),
comment.getEditCount()
);
}
return editSummary;
}
private PreparedRSSComment prepareRSSComment(
@Nonnull MessageText messageText,
@Nonnull Comment comment,
boolean secure
) throws UserNotFoundException {
User author = userDao.getUserCached(comment.getUserid());
String processedMessage = prepareCommentTextRSS(messageText, secure);
return new PreparedRSSComment(comment, author, processedMessage);
}
public PreparedComment prepareCommentForReplayto(Comment comment, boolean secure) throws UserNotFoundException {
return prepareComment(comment, secure);
}
/**
* Подготовить комментарий для последующего редактирования
* в комментарии не используется автор и не важно существует ли ответ и автор ответа
* @param comment Редактируемый комментарий
* @param message Тело комментария
* @param secure флаг защищенного соединения
* @return подготовленный коментарий
* @throws UserNotFoundException
*/
public PreparedComment prepareCommentForEdit(Comment comment, String message, boolean secure) throws UserNotFoundException {
User author = userDao.getUserCached(comment.getUserid());
String processedMessage = lorCodeService.parseComment(message, false);
ApiUserRef ref = userService.ref(author, null);
return new PreparedComment(
comment,
ref,
processedMessage,
null, // reply
false, // deletable
false, // editable
null, // Remark
null, // userpic
null,
null,
null,
null);
}
public List<PreparedRSSComment> prepareCommentListRSS(
@Nonnull List<Comment> list,
boolean secure
) throws UserNotFoundException {
List<PreparedRSSComment> commentsPrepared = new ArrayList<>(list.size());
for (Comment comment : list) {
MessageText messageText = msgbaseDao.getMessageText(comment.getId());
commentsPrepared.add(prepareRSSComment(messageText, comment, secure));
}
return commentsPrepared;
}
private Map<Integer, User> loadUsers(Iterable<Integer> userIds) {
ImmutableMap.Builder<Integer, User> builder = ImmutableMap.builder();
for (User user : userService.getUsersCached(ImmutableSet.copyOf(userIds))) {
builder.put(user.getId(), user);
}
return builder.build();
}
public List<PreparedComment> prepareCommentList(
@Nonnull CommentList comments,
@Nonnull List<Comment> list,
boolean secure,
@Nonnull Template tmpl,
@Nonnull Topic topic
) throws UserNotFoundException {
if (list.isEmpty()) {
return ImmutableList.of();
}
Map<Integer, MessageText> texts = msgbaseDao.getMessageText(Lists.transform(list, Comment::getId));
Map<Integer, User> users = loadUsers(Iterables.transform(list, Comment::getUserid));
User currentUser = tmpl.getCurrentUser();
Map<Integer, Remark> remarks;
if (currentUser!=null) {
remarks = remarkDao.getRemarks(currentUser, users.values());
} else {
remarks = ImmutableMap.of();
}
List<PreparedComment> commentsPrepared = new ArrayList<>(list.size());
for (Comment comment : list) {
MessageText text = texts.get(comment.getId());
User author = users.get(comment.getUserid());
Remark remark = remarks.get(author.getId());
String remarkText = null;
if (remark!=null) {
remarkText = remark.getText();
}
commentsPrepared.add(prepareComment(text, author, remarkText, comment, comments, secure, tmpl, topic));
}
return commentsPrepared;
}
/**
* Получить html представление текста комментария
*
* @param messageText текст комментария
* @return строку html комментария
*/
private String prepareCommentText(MessageText messageText, boolean nofollow) {
if (messageText.isLorcode()) {
return lorCodeService.parseComment(messageText.getText(), nofollow);
} else {
return "<p>" + messageText.getText() + "</p>";
}
}
/**
* Получить RSS представление текста комментария
*
* @param messageText текст комментария
* @param secure https соединение?
* @return строку html комментария
*/
private String prepareCommentTextRSS(MessageText messageText, final boolean secure) {
return lorCodeService.prepareTextRSS(messageText.getText(), messageText.isLorcode());
}
}