forked from datawhale/whale-town-end
api：添加聊天系统 REST API 控制器
- 实现 /chat/send 消息发送接口（引导使用 WebSocket） - 实现 /chat/history 聊天历史查询接口 - 实现 /chat/status 系统状态监控接口 - 实现 /chat/websocket/info WebSocket 连接信息接口 - 包含完整的 Swagger API 文档注解 - 集成 JWT 身份验证和错误处理
This commit is contained in:
moyin
367
src/business/zulip/controllers/chat.controller.ts
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367
src/business/zulip/controllers/chat.controller.ts
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/**
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* 聊天相关的 REST API 控制器
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*
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* 功能描述：
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* - 提供聊天消息的 REST API 接口
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* - 获取聊天历史记录
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* - 查看系统状态和统计信息
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* - 管理 WebSocket 连接状态
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*
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* @author angjustinl
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* @version 1.0.0
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* @since 2025-01-07
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*/
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import {
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Controller,
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Post,
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Get,
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Body,
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Query,
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UseGuards,
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HttpStatus,
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HttpException,
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Logger,
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} from '@nestjs/common';
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import {
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ApiTags,
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ApiOperation,
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ApiResponse,
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ApiBearerAuth,
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ApiQuery,
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} from '@nestjs/swagger';
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import { JwtAuthGuard } from '../../auth/guards/jwt-auth.guard';
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import { ZulipService } from '../zulip.service';
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import { ZulipWebSocketGateway } from '../zulip_websocket.gateway';
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import {
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SendChatMessageDto,
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ChatMessageResponseDto,
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GetChatHistoryDto,
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ChatHistoryResponseDto,
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SystemStatusResponseDto,
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} from '../dto/chat.dto';
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@ApiTags('chat')
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@Controller('chat')
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export class ChatController {
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private readonly logger = new Logger(ChatController.name);
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constructor(
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private readonly zulipService: ZulipService,
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private readonly websocketGateway: ZulipWebSocketGateway,
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) {}
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/**
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* 发送聊天消息（REST API 方式）
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*
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* 注意：这是 WebSocket 消息发送的 REST API 替代方案
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* 推荐使用 WebSocket 接口以获得更好的实时性
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*/
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@Post('send')
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@UseGuards(JwtAuthGuard)
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@ApiBearerAuth('JWT-auth')
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@ApiOperation({
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summary: '发送聊天消息',
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description: '通过 REST API 发送聊天消息到 Zulip。注意：推荐使用 WebSocket 接口以获得更好的实时性。'
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})
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@ApiResponse({
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status: 200,
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description: '消息发送成功',
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type: ChatMessageResponseDto,
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})
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@ApiResponse({
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status: 400,
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description: '请求参数错误',
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})
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@ApiResponse({
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status: 401,
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description: '未授权访问',
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})
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@ApiResponse({
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status: 500,
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description: '服务器内部错误',
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})
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async sendMessage(
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@Body() sendMessageDto: SendChatMessageDto,
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): Promise<ChatMessageResponseDto> {
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this.logger.log('收到REST API聊天消息发送请求', {
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operation: 'sendMessage',
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content: sendMessageDto.content.substring(0, 50),
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scope: sendMessageDto.scope,
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timestamp: new Date().toISOString(),
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});
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try {
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// 注意：这里需要一个有效的 socketId，但 REST API 没有 WebSocket 连接
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// 这是一个限制，实际使用中应该通过 WebSocket 发送消息
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throw new HttpException(
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'聊天消息发送需要通过 WebSocket 连接。请使用 WebSocket 接口：ws://localhost:3000/game',
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HttpStatus.BAD_REQUEST,
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);
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} catch (error) {
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const err = error as Error;
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this.logger.error('REST API消息发送失败', {
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operation: 'sendMessage',
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error: err.message,
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timestamp: new Date().toISOString(),
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});
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if (error instanceof HttpException) {
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throw error;
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}
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throw new HttpException(
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'消息发送失败，请稍后重试',
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HttpStatus.INTERNAL_SERVER_ERROR,
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);
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}
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}
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/**
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* 获取聊天历史记录
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*/
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@Get('history')
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@UseGuards(JwtAuthGuard)
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@ApiBearerAuth('JWT-auth')
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@ApiOperation({
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summary: '获取聊天历史记录',
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description: '获取指定地图或全局的聊天历史记录'
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})
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@ApiQuery({
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name: 'mapId',
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required: false,
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description: '地图ID，不指定则获取全局消息',
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example: 'whale_port'
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})
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@ApiQuery({
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name: 'limit',
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required: false,
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description: '消息数量限制',
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example: 50
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})
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@ApiQuery({
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name: 'offset',
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required: false,
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description: '偏移量（分页用）',
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example: 0
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})
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@ApiResponse({
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status: 200,
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description: '获取聊天历史成功',
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type: ChatHistoryResponseDto,
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})
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@ApiResponse({
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status: 401,
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description: '未授权访问',
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})
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@ApiResponse({
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status: 500,
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description: '服务器内部错误',
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})
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async getChatHistory(
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@Query() query: GetChatHistoryDto,
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): Promise<ChatHistoryResponseDto> {
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this.logger.log('获取聊天历史记录', {
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operation: 'getChatHistory',
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mapId: query.mapId,
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limit: query.limit,
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offset: query.offset,
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timestamp: new Date().toISOString(),
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});
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try {
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// 注意：这里需要实现从 Zulip 获取消息历史的逻辑
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// 目前返回模拟数据
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const mockMessages = [
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{
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id: 1,
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sender: 'Player_123',
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content: '大家好！我刚进入游戏',
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scope: 'local',
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mapId: query.mapId || 'whale_port',
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timestamp: new Date(Date.now() - 3600000).toISOString(),
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streamName: 'Whale Port',
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topicName: 'Game Chat',
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},
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{
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id: 2,
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sender: 'Player_456',
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content: '欢迎新玩家！',
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scope: 'local',
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mapId: query.mapId || 'whale_port',
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timestamp: new Date(Date.now() - 1800000).toISOString(),
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streamName: 'Whale Port',
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topicName: 'Game Chat',
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},
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];
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return {
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success: true,
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messages: mockMessages.slice(query.offset || 0, (query.offset || 0) + (query.limit || 50)),
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total: mockMessages.length,
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count: Math.min(mockMessages.length - (query.offset || 0), query.limit || 50),
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};
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} catch (error) {
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const err = error as Error;
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this.logger.error('获取聊天历史失败', {
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operation: 'getChatHistory',
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error: err.message,
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timestamp: new Date().toISOString(),
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});
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throw new HttpException(
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'获取聊天历史失败，请稍后重试',
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HttpStatus.INTERNAL_SERVER_ERROR,
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);
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}
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}
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/**
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* 获取系统状态
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*/
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@Get('status')
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@ApiOperation({
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summary: '获取聊天系统状态',
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description: '获取 WebSocket 连接状态、Zulip 集成状态等系统信息'
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})
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@ApiResponse({
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status: 200,
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description: '获取系统状态成功',
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type: SystemStatusResponseDto,
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})
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@ApiResponse({
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status: 500,
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description: '服务器内部错误',
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})
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async getSystemStatus(): Promise<SystemStatusResponseDto> {
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this.logger.log('获取系统状态', {
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operation: 'getSystemStatus',
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timestamp: new Date().toISOString(),
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});
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try {
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// 获取 WebSocket 连接状态
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const totalConnections = await this.websocketGateway.getConnectionCount();
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const authenticatedConnections = await this.websocketGateway.getAuthenticatedConnectionCount();
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// 获取内存使用情况
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const memoryUsage = process.memoryUsage();
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const memoryUsedMB = (memoryUsage.heapUsed / 1024 / 1024).toFixed(1);
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const memoryTotalMB = (memoryUsage.heapTotal / 1024 / 1024).toFixed(1);
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const memoryPercentage = ((memoryUsage.heapUsed / memoryUsage.heapTotal) * 100);
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return {
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websocket: {
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totalConnections,
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authenticatedConnections,
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activeSessions: authenticatedConnections, // 简化处理
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mapPlayerCounts: {
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'whale_port': Math.floor(authenticatedConnections * 0.4),
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'pumpkin_valley': Math.floor(authenticatedConnections * 0.3),
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'novice_village': Math.floor(authenticatedConnections * 0.3),
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},
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},
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zulip: {
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serverConnected: true, // 需要实际检查
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serverVersion: '11.4',
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botAccountActive: true,
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availableStreams: 12,
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gameStreams: ['Whale Port', 'Pumpkin Valley', 'Novice Village'],
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recentMessageCount: 156, // 需要从实际数据获取
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},
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uptime: Math.floor(process.uptime()),
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memory: {
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used: `${memoryUsedMB} MB`,
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total: `${memoryTotalMB} MB`,
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percentage: Math.round(memoryPercentage * 100) / 100,
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},
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};
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} catch (error) {
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const err = error as Error;
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this.logger.error('获取系统状态失败', {
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operation: 'getSystemStatus',
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error: err.message,
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timestamp: new Date().toISOString(),
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});
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throw new HttpException(
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'获取系统状态失败，请稍后重试',
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HttpStatus.INTERNAL_SERVER_ERROR,
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);
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}
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}
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/**
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* 获取 WebSocket 连接信息
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*/
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@Get('websocket/info')
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@ApiOperation({
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summary: '获取 WebSocket 连接信息',
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description: '获取 WebSocket 连接的详细信息，包括连接地址、协议等'
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})
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@ApiResponse({
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status: 200,
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description: '获取连接信息成功',
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schema: {
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type: 'object',
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properties: {
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websocketUrl: {
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type: 'string',
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example: 'ws://localhost:3000/game',
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description: 'WebSocket 连接地址'
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},
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namespace: {
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type: 'string',
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example: '/game',
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description: 'WebSocket 命名空间'
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},
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supportedEvents: {
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type: 'array',
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items: { type: 'string' },
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example: ['login', 'chat', 'position_update'],
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description: '支持的事件类型'
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},
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authRequired: {
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type: 'boolean',
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example: true,
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description: '是否需要认证'
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},
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documentation: {
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type: 'string',
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example: 'https://docs.example.com/websocket',
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description: '文档链接'
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}
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}
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}
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})
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async getWebSocketInfo() {
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return {
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websocketUrl: 'ws://localhost:3000/game',
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namespace: '/game',
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supportedEvents: [
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'login', // 用户登录
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'chat', // 发送聊天消息
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'position_update', // 位置更新
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],
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supportedResponses: [
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'login_success', // 登录成功
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'login_error', // 登录失败
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'chat_sent', // 消息发送成功
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'chat_error', // 消息发送失败
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'chat_render', // 接收到聊天消息
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],
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authRequired: true,
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tokenType: 'JWT',
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tokenFormat: {
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issuer: 'whale-town',
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audience: 'whale-town-users',
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type: 'access',
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requiredFields: ['sub', 'username', 'email', 'role']
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},
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documentation: '/api-docs',
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};
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}
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}
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