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feat: add channel support

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Tim
2025-08-23 01:31:06 +08:00
parent 24cc479a56
commit 4947978f81
12 changed files with 459 additions and 65 deletions
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54
backend/src/main/java/com/openisle/service/MessageService.java
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@@ -82,6 +82,49 @@ public class MessageService {
return message;
}
@Transactional
public Message sendMessageToConversation(Long senderId, Long conversationId, String content) {
User sender = userRepository.findById(senderId)
.orElseThrow(() -> new IllegalArgumentException("Sender not found"));
MessageConversation conversation = conversationRepository.findById(conversationId)
.orElseThrow(() -> new IllegalArgumentException("Conversation not found"));
// Join the conversation if not already a participant (useful for channels)
participantRepository.findByConversationIdAndUserId(conversationId, senderId)
.orElseGet(() -> {
MessageParticipant p = new MessageParticipant();
p.setConversation(conversation);
p.setUser(sender);
return participantRepository.save(p);
});
Message message = new Message();
message.setConversation(conversation);
message.setSender(sender);
message.setContent(content);
message = messageRepository.save(message);
conversation.setLastMessage(message);
conversationRepository.save(conversation);
MessageDto messageDto = toDto(message);
String conversationDestination = "/topic/conversation/" + conversation.getId();
messagingTemplate.convertAndSend(conversationDestination, messageDto);
// Notify all participants except sender for updates
for (MessageParticipant participant : conversation.getParticipants()) {
if (participant.getUser().getId().equals(senderId)) continue;
String userDestination = "/topic/user/" + participant.getUser().getId() + "/messages";
messagingTemplate.convertAndSend(userDestination, messageDto);
long unreadCount = getUnreadMessageCount(participant.getUser().getId());
String username = participant.getUser().getUsername();
messagingTemplate.convertAndSendToUser(username, "/queue/unread-count", unreadCount);
}
return message;
}
private MessageDto toDto(Message message) {
MessageDto dto = new MessageDto();
dto.setId(message.getId());
@@ -134,12 +177,18 @@ public class MessageService {
@Transactional(readOnly = true)
public List<ConversationDto> getConversations(Long userId) {
List<MessageConversation> conversations = conversationRepository.findConversationsByUserIdOrderByLastMessageDesc(userId);
return conversations.stream().map(c -> toDto(c, userId)).collect(Collectors.toList());
return conversations.stream()
.filter(c -> !c.isChannel())
.map(c -> toDto(c, userId))
.collect(Collectors.toList());
}
private ConversationDto toDto(MessageConversation conversation, Long userId) {
ConversationDto dto = new ConversationDto();
dto.setId(conversation.getId());
dto.setChannel(conversation.isChannel());
dto.setName(conversation.getName());
dto.setAvatar(conversation.getAvatar());
dto.setCreatedAt(conversation.getCreatedAt());
if (conversation.getLastMessage() != null) {
dto.setLastMessage(toDto(conversation.getLastMessage()));
@@ -189,6 +238,9 @@ public class MessageService {
ConversationDetailDto detailDto = new ConversationDetailDto();
detailDto.setId(conversation.getId());
detailDto.setName(conversation.getName());
detailDto.setChannel(conversation.isChannel());
detailDto.setAvatar(conversation.getAvatar());
detailDto.setParticipants(participants);
detailDto.setMessages(messageDtoPage);