feat: 重构为 Monorepo 架构并实现 HTTP Server

架构变更:
- 采用 pnpm workspaces 实现 Monorepo 结构
- 将现有代码迁移到 packages/core
- 新增 packages/server HTTP 服务层

Server 功能:
- REST API: 会话管理、工具管理、配置管理
- WebSocket: 实时双向通信支持
- SSE: 服务端事件推送
- Hono + Bun 作为运行时

API 端点:
- GET/POST /api/sessions - 会话 CRUD
- GET/POST /api/sessions/:id/messages - 消息管理
- GET /api/sessions/:id/events - SSE 事件流
- WS /api/ws/:sessionId - WebSocket 连接
- GET/POST /api/tools - 工具管理
- GET/PUT /api/config - 配置管理
This commit is contained in:
2025-12-12 10:42:20 +08:00
parent 59dbed926e
commit 5e32375f0e
301 changed files with 3281 additions and 43 deletions
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{
"name": "@ai-assistant/server",
"version": "1.0.0",
"description": "HTTP Server for AI terminal assistant - REST API, WebSocket, SSE",
"main": "dist/index.js",
"types": "dist/index.d.ts",
"type": "module",
"exports": {
".": {
"types": "./dist/index.d.ts",
"import": "./dist/index.js"
}
},
"scripts": {
"build": "tsc",
"dev": "tsc --watch",
"start": "bun run src/bin/server.ts",
"start:dev": "bun --watch run src/bin/server.ts",
"test": "vitest run",
"test:watch": "vitest"
},
"dependencies": {
"@ai-assistant/core": "workspace:*",
"hono": "^4.6.0",
"uuid": "^13.0.0",
"zod": "^4.1.13"
},
"devDependencies": {
"@types/bun": "^1.1.0",
"@types/node": "^22.0.0",
"@types/uuid": "^10.0.0",
"typescript": "^5.6.0",
"vitest": "^4.0.15"
}
}
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#!/usr/bin/env bun
/**
* AI Assistant Server Entry Point
*
* 独立运行的服务器入口,用于开发和测试
*
* Usage:
* bun run packages/server/src/bin/server.ts
* bun run packages/server/src/bin/server.ts --port 8080
* bun run packages/server/src/bin/server.ts --host 0.0.0.0 --port 3000
*/
import { app, websocket, startServer } from '../index.js';
// 解析命令行参数
function parseArgs(): { port: number; host: string } {
const args = process.argv.slice(2);
let port = 3000;
let host = '127.0.0.1';
for (let i = 0; i < args.length; i++) {
if (args[i] === '--port' || args[i] === '-p') {
port = parseInt(args[i + 1], 10) || 3000;
i++;
} else if (args[i] === '--host' || args[i] === '-h') {
host = args[i + 1] || '127.0.0.1';
i++;
}
}
return { port, host };
}
// 主函数
async function main() {
const { port, host } = parseArgs();
// 打印启动信息
startServer({ port, host });
// 启动 Bun 服务器
const server = Bun.serve({
port,
hostname: host,
fetch: app.fetch,
websocket,
});
console.log(`Server started at http://${host}:${port}`);
// 优雅关闭
process.on('SIGINT', () => {
console.log('\nShutting down server...');
server.stop();
process.exit(0);
});
process.on('SIGTERM', () => {
console.log('\nShutting down server...');
server.stop();
process.exit(0);
});
}
main().catch((error) => {
console.error('Failed to start server:', error);
process.exit(1);
});
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/**
* AI Assistant Server
*
* HTTP Server 入口,提供 REST API、WebSocket 和 SSE 支持
*/
import { Hono } from 'hono';
import { cors } from 'hono/cors';
import { logger } from 'hono/logger';
import { createBunWebSocket } from 'hono/bun';
import { sessionsRouter, toolsRouter, configRouter } from './routes/index.js';
import {
handleWebSocket,
handleWebSocketMessage,
handleWebSocketClose,
getConnectionStats,
} from './ws.js';
import { handleSSE, getSSEStats } from './sse.js';
import { getSessionManager } from './session/manager.js';
// 创建 Hono 应用
const app = new Hono();
// WebSocket 升级 (Bun 环境)
const { upgradeWebSocket, websocket } = createBunWebSocket();
// 中间件
app.use('*', logger());
app.use(
'*',
cors({
origin: '*', // 生产环境应该限制
allowMethods: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'],
allowHeaders: ['Content-Type', 'Authorization'],
})
);
// 健康检查
app.get('/health', (c) => {
const sessionManager = getSessionManager();
const wsStats = getConnectionStats();
const sseStats = getSSEStats();
return c.json({
status: 'ok',
timestamp: new Date().toISOString(),
stats: {
sessions: sessionManager.count(),
websocket: wsStats,
sse: sseStats,
},
});
});
// API 版本前缀
const api = new Hono();
// 挂载路由
api.route('/sessions', sessionsRouter);
api.route('/tools', toolsRouter);
api.route('/config', configRouter);
// SSE 事件流
api.get('/sessions/:id/events', handleSSE);
// WebSocket 端点
api.get(
'/ws/:sessionId',
upgradeWebSocket((c) => {
const sessionId = c.req.param('sessionId');
return {
onOpen(_event, ws) {
handleWebSocket(ws, sessionId);
},
onMessage(event, ws) {
handleWebSocketMessage(ws, sessionId, event.data);
},
onClose(_event, ws) {
handleWebSocketClose(ws, sessionId);
},
onError(event, ws) {
console.error('[WS] Error:', event);
handleWebSocketClose(ws, sessionId);
},
};
})
);
// 挂载 API 到 /api
app.route('/api', api);
// 404 处理
app.notFound((c) => {
return c.json(
{
success: false,
error: 'Not found',
},
404
);
});
// 错误处理
app.onError((err, c) => {
console.error('[Server Error]', err);
return c.json(
{
success: false,
error: err.message || 'Internal server error',
},
500
);
});
// 服务器配置
export interface ServerOptions {
port?: number;
host?: string;
}
/**
* 创建服务器实例
*/
export function createServer(options: ServerOptions = {}) {
const { port = 3000, host = '127.0.0.1' } = options;
return {
app,
websocket,
port,
host,
};
}
/**
* 启动服务器 (Bun 环境)
*/
export function startServer(options: ServerOptions = {}): void {
const { port = 3000, host = '127.0.0.1' } = options;
console.log(`
╔════════════════════════════════════════════╗
║ AI Assistant Server ║
╠════════════════════════════════════════════╣
║ REST API: http://${host}:${port}/api
║ WebSocket: ws://${host}:${port}/api/ws/:sessionId
║ SSE: http://${host}:${port}/api/sessions/:id/events
║ Health: http://${host}:${port}/health
╚════════════════════════════════════════════╝
`);
// Bun.serve 需要在 CLI 包中调用
// 这里只导出配置
}
// 导出
export { app, websocket };
export { getSessionManager } from './session/manager.js';
export { registerTool, getRegisteredTools } from './routes/tools.js';
export { getConfig, setConfig } from './routes/config.js';
export {
emitEvent,
broadcastEvent,
emitStatusEvent,
emitLogEvent,
emitProgressEvent,
emitFileChangeEvent,
} from './sse.js';
export { broadcastToSession } from './ws.js';
export * from './types.js';
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/**
* Config API Routes
*
* 配置管理相关的 REST API
*/
import { Hono } from 'hono';
export const configRouter = new Hono();
// 服务器配置 (后续会从配置文件加载)
interface ServerConfig {
model: string;
maxTokens: number;
temperature: number;
workdir: string;
allowedPaths: string[];
deniedPaths: string[];
}
let serverConfig: ServerConfig = {
model: 'claude-sonnet-4-20250514',
maxTokens: 8192,
temperature: 0.7,
workdir: process.cwd(),
allowedPaths: [],
deniedPaths: [],
};
/**
* GET /config - 获取当前配置
*/
configRouter.get('/', (c) => {
return c.json({
success: true,
data: serverConfig,
});
});
/**
* PUT /config - 更新配置
*/
configRouter.put('/', async (c) => {
try {
const body = await c.req.json();
// 合并配置 (只更新提供的字段)
serverConfig = {
...serverConfig,
...body,
};
return c.json({
success: true,
data: serverConfig,
});
} catch (error) {
return c.json(
{
success: false,
error: error instanceof Error ? error.message : 'Invalid input',
},
400
);
}
});
/**
* PATCH /config - 部分更新配置
*/
configRouter.patch('/', async (c) => {
try {
const body = await c.req.json();
// 部分更新
Object.keys(body).forEach((key) => {
if (key in serverConfig) {
(serverConfig as any)[key] = body[key];
}
});
return c.json({
success: true,
data: serverConfig,
});
} catch (error) {
return c.json(
{
success: false,
error: error instanceof Error ? error.message : 'Invalid input',
},
400
);
}
});
/**
* 获取当前配置 (内部使用)
*/
export function getConfig(): ServerConfig {
return { ...serverConfig };
}
/**
* 设置配置 (内部使用)
*/
export function setConfig(config: Partial<ServerConfig>): void {
serverConfig = { ...serverConfig, ...config };
}
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/**
* API Routes Index
*
* 聚合所有 API 路由
*/
export { sessionsRouter } from './sessions.js';
export { toolsRouter, registerTool, getRegisteredTools } from './tools.js';
export { configRouter, getConfig, setConfig } from './config.js';
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/**
* Sessions API Routes
*
* 会话管理相关的 REST API
*/
import { Hono } from 'hono';
import { getSessionManager } from '../session/manager.js';
import { CreateSessionInputSchema, SendMessageInputSchema } from '../types.js';
export const sessionsRouter = new Hono();
const sessionManager = getSessionManager();
/**
* GET /sessions - 列出所有会话
*/
sessionsRouter.get('/', (c) => {
const sessions = sessionManager.list();
return c.json({
success: true,
data: sessions,
});
});
/**
* POST /sessions - 创建新会话
*/
sessionsRouter.post('/', async (c) => {
try {
const body = await c.req.json();
const input = CreateSessionInputSchema.parse(body);
const session = sessionManager.create(input);
return c.json(
{
success: true,
data: session,
},
201
);
} catch (error) {
return c.json(
{
success: false,
error: error instanceof Error ? error.message : 'Invalid input',
},
400
);
}
});
/**
* GET /sessions/:id - 获取单个会话
*/
sessionsRouter.get('/:id', (c) => {
const id = c.req.param('id');
const session = sessionManager.get(id);
if (!session) {
return c.json(
{
success: false,
error: 'Session not found',
},
404
);
}
return c.json({
success: true,
data: session,
});
});
/**
* DELETE /sessions/:id - 删除会话
*/
sessionsRouter.delete('/:id', (c) => {
const id = c.req.param('id');
if (!sessionManager.exists(id)) {
return c.json(
{
success: false,
error: 'Session not found',
},
404
);
}
sessionManager.delete(id);
return c.json({
success: true,
message: 'Session deleted',
});
});
/**
* GET /sessions/:id/messages - 获取会话消息
*/
sessionsRouter.get('/:id/messages', (c) => {
const id = c.req.param('id');
if (!sessionManager.exists(id)) {
return c.json(
{
success: false,
error: 'Session not found',
},
404
);
}
const messages = sessionManager.getMessages(id);
return c.json({
success: true,
data: messages,
});
});
/**
* POST /sessions/:id/messages - 发送消息
*
* 注意: 这个端点仅用于添加消息记录。
* 实际的 AI 对话应该通过 WebSocket 进行。
*/
sessionsRouter.post('/:id/messages', async (c) => {
const id = c.req.param('id');
if (!sessionManager.exists(id)) {
return c.json(
{
success: false,
error: 'Session not found',
},
404
);
}
try {
const body = await c.req.json();
const input = SendMessageInputSchema.parse(body);
const message = sessionManager.addMessage(id, {
role: input.role,
content: input.content,
});
if (!message) {
return c.json(
{
success: false,
error: 'Failed to add message',
},
500
);
}
return c.json(
{
success: true,
data: message,
},
201
);
} catch (error) {
return c.json(
{
success: false,
error: error instanceof Error ? error.message : 'Invalid input',
},
400
);
}
});
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/**
* Tools API Routes
*
* 工具管理相关的 REST API
*/
import { Hono } from 'hono';
import type { Tool } from '../types.js';
export const toolsRouter = new Hono();
// 工具注册表 (后续会从 core 模块获取)
const toolRegistry: Map<string, Tool> = new Map();
/**
* 注册工具 (内部使用)
*/
export function registerTool(tool: Tool): void {
toolRegistry.set(tool.name, tool);
}
/**
* 获取所有已注册的工具
*/
export function getRegisteredTools(): Tool[] {
return Array.from(toolRegistry.values());
}
/**
* GET /tools - 列出所有可用工具
*/
toolsRouter.get('/', (c) => {
const tools = getRegisteredTools();
return c.json({
success: true,
data: tools,
});
});
/**
* GET /tools/:name - 获取单个工具详情
*/
toolsRouter.get('/:name', (c) => {
const name = c.req.param('name');
const tool = toolRegistry.get(name);
if (!tool) {
return c.json(
{
success: false,
error: 'Tool not found',
},
404
);
}
return c.json({
success: true,
data: tool,
});
});
/**
* POST /tools/:name/execute - 执行工具
*
* 注意: 工具执行是同步的,对于长时间运行的工具,
* 建议通过 WebSocket 执行以获取实时反馈。
*/
toolsRouter.post('/:name/execute', async (c) => {
const name = c.req.param('name');
const tool = toolRegistry.get(name);
if (!tool) {
return c.json(
{
success: false,
error: 'Tool not found',
},
404
);
}
try {
const body = await c.req.json();
const params = body.params || {};
// TODO: 实际调用 core 模块的工具执行逻辑
// const result = await executeTool(name, params);
return c.json({
success: true,
data: {
tool: name,
params,
result: null, // 占位,后续实现
message: 'Tool execution not yet implemented',
},
});
} catch (error) {
return c.json(
{
success: false,
error: error instanceof Error ? error.message : 'Execution failed',
},
500
);
}
});
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/**
* Session Manager
*
* 管理所有活跃的会话
*/
import { v4 as uuidv4 } from 'uuid';
import type { Session, CreateSessionInput, Message, SessionStatus } from '../types.js';
export class SessionManager {
private sessions: Map<string, Session> = new Map();
private messages: Map<string, Message[]> = new Map();
/**
* 创建新会话
*/
create(input: CreateSessionInput = {}): Session {
const now = new Date().toISOString();
const session: Session = {
id: uuidv4(),
name: input.name,
workdir: input.workdir || process.cwd(),
createdAt: now,
updatedAt: now,
status: 'idle',
messageCount: 0,
};
this.sessions.set(session.id, session);
this.messages.set(session.id, []);
return session;
}
/**
* 获取所有会话
*/
list(): Session[] {
return Array.from(this.sessions.values()).sort(
(a, b) => new Date(b.updatedAt).getTime() - new Date(a.updatedAt).getTime()
);
}
/**
* 获取单个会话
*/
get(id: string): Session | undefined {
return this.sessions.get(id);
}
/**
* 删除会话
*/
delete(id: string): boolean {
this.messages.delete(id);
return this.sessions.delete(id);
}
/**
* 更新会话状态
*/
updateStatus(id: string, status: SessionStatus): Session | undefined {
const session = this.sessions.get(id);
if (!session) return undefined;
session.status = status;
session.updatedAt = new Date().toISOString();
return session;
}
/**
* 获取会话消息
*/
getMessages(sessionId: string): Message[] {
return this.messages.get(sessionId) || [];
}
/**
* 添加消息
*/
addMessage(sessionId: string, message: Omit<Message, 'id' | 'sessionId' | 'createdAt'>): Message | undefined {
const session = this.sessions.get(sessionId);
if (!session) return undefined;
const fullMessage: Message = {
...message,
id: uuidv4(),
sessionId,
createdAt: new Date().toISOString(),
};
const messages = this.messages.get(sessionId) || [];
messages.push(fullMessage);
this.messages.set(sessionId, messages);
// 更新会话
session.messageCount = messages.length;
session.updatedAt = new Date().toISOString();
return fullMessage;
}
/**
* 获取会话数量
*/
count(): number {
return this.sessions.size;
}
/**
* 检查会话是否存在
*/
exists(id: string): boolean {
return this.sessions.has(id);
}
}
// 单例
let instance: SessionManager | null = null;
export function getSessionManager(): SessionManager {
if (!instance) {
instance = new SessionManager();
}
return instance;
}
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/**
* SSE (Server-Sent Events) Handler
*
* 处理单向事件推送,用于状态更新、日志流、进度通知等
*/
import type { Context } from 'hono';
import { streamSSE } from 'hono/streaming';
import { getSessionManager } from './session/manager.js';
import type { SSEEvent } from './types.js';
// 存储 SSE 订阅者
interface SSESubscriber {
sessionId: string;
controller: ReadableStreamDefaultController<string>;
active: boolean;
}
const subscribers: Map<string, Set<SSESubscriber>> = new Map();
/**
* 向会话的所有订阅者发送 SSE 事件
*/
export function emitEvent(sessionId: string, event: SSEEvent): void {
const subs = subscribers.get(sessionId);
if (!subs) return;
const eventString = formatSSEMessage(event);
for (const sub of subs) {
if (!sub.active) continue;
try {
sub.controller.enqueue(eventString);
} catch (error) {
// 订阅者已断开
sub.active = false;
}
}
}
/**
* 广播事件到所有会话
*/
export function broadcastEvent(event: SSEEvent): void {
for (const sessionId of subscribers.keys()) {
emitEvent(sessionId, event);
}
}
/**
* 格式化 SSE 消息
*/
function formatSSEMessage(event: SSEEvent): string {
const lines: string[] = [];
if (event.event) {
lines.push(`event: ${event.event}`);
}
const data = JSON.stringify(event.data);
lines.push(`data: ${data}`);
lines.push(''); // 空行结束消息
return lines.join('\n') + '\n';
}
/**
* SSE 路由处理器
*
* GET /api/sessions/:id/events
*/
export async function handleSSE(c: Context): Promise<Response> {
const sessionId = c.req.param('id');
const sessionManager = getSessionManager();
// 验证会话
if (!sessionManager.exists(sessionId)) {
return c.json(
{
success: false,
error: 'Session not found',
},
404
);
}
return streamSSE(c, async (stream) => {
// 创建订阅者
const subscriber: SSESubscriber = {
sessionId,
controller: null as any, // Will be set by stream internals
active: true,
};
// 注册订阅者
if (!subscribers.has(sessionId)) {
subscribers.set(sessionId, new Set());
}
subscribers.get(sessionId)!.add(subscriber);
console.log(`[SSE] Client subscribed to session: ${sessionId}`);
// 发送初始连接事件
await stream.writeSSE({
event: 'connected',
data: JSON.stringify({
timestamp: Date.now(),
payload: { sessionId },
}),
});
// 发送心跳保持连接
const heartbeatInterval = setInterval(async () => {
if (!subscriber.active) {
clearInterval(heartbeatInterval);
return;
}
try {
await stream.writeSSE({
event: 'heartbeat',
data: JSON.stringify({
timestamp: Date.now(),
payload: null,
}),
});
} catch {
subscriber.active = false;
clearInterval(heartbeatInterval);
}
}, 30000); // 每 30 秒发送心跳
// 监听关闭
stream.onAbort(() => {
subscriber.active = false;
clearInterval(heartbeatInterval);
const subs = subscribers.get(sessionId);
if (subs) {
subs.delete(subscriber);
if (subs.size === 0) {
subscribers.delete(sessionId);
}
}
console.log(`[SSE] Client unsubscribed from session: ${sessionId}`);
});
// 保持连接打开
// 事件将通过 emitEvent() 发送
while (subscriber.active) {
await new Promise((resolve) => setTimeout(resolve, 1000));
}
});
}
/**
* 发送状态更新事件
*/
export function emitStatusEvent(
sessionId: string,
status: string,
details?: Record<string, any>
): void {
emitEvent(sessionId, {
event: 'status',
data: {
timestamp: Date.now(),
payload: { status, ...details },
},
});
}
/**
* 发送日志事件
*/
export function emitLogEvent(
sessionId: string,
level: 'info' | 'warn' | 'error',
message: string
): void {
emitEvent(sessionId, {
event: 'log',
data: {
timestamp: Date.now(),
payload: { level, message },
},
});
}
/**
* 发送进度事件
*/
export function emitProgressEvent(
sessionId: string,
progress: number,
message?: string
): void {
emitEvent(sessionId, {
event: 'progress',
data: {
timestamp: Date.now(),
payload: { progress, message },
},
});
}
/**
* 发送文件变更事件
*/
export function emitFileChangeEvent(
sessionId: string,
type: 'created' | 'modified' | 'deleted',
path: string
): void {
emitEvent(sessionId, {
event: 'file_change',
data: {
timestamp: Date.now(),
payload: { type, path },
},
});
}
/**
* 获取订阅统计
*/
export function getSSEStats(): { sessions: number; subscribers: number } {
let totalSubscribers = 0;
for (const subs of subscribers.values()) {
totalSubscribers += subs.size;
}
return {
sessions: subscribers.size,
subscribers: totalSubscribers,
};
}
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/**
* Server 类型定义
*/
import { z } from 'zod';
// ============ Session 相关 ============
export const SessionStatusSchema = z.enum(['idle', 'active', 'busy', 'running', 'paused']);
export const SessionSchema = z.object({
id: z.string().uuid(),
name: z.string().optional(),
workdir: z.string(),
createdAt: z.string(),
updatedAt: z.string(),
status: SessionStatusSchema,
messageCount: z.number().int().min(0),
});
export type Session = z.infer<typeof SessionSchema>;
export type SessionStatus = z.infer<typeof SessionStatusSchema>;
export const CreateSessionInputSchema = z.object({
name: z.string().optional(),
workdir: z.string().optional(),
});
export type CreateSessionInput = z.infer<typeof CreateSessionInputSchema>;
// ============ Message 相关 ============
export const MessageRoleSchema = z.enum(['user', 'assistant', 'system', 'tool']);
export const MessageSchema = z.object({
id: z.string().uuid(),
sessionId: z.string().uuid(),
role: MessageRoleSchema,
content: z.string(),
createdAt: z.string(),
toolCalls: z
.array(
z.object({
id: z.string(),
name: z.string(),
arguments: z.record(z.string(), z.unknown()),
})
)
.optional(),
toolResults: z
.array(
z.object({
toolCallId: z.string(),
result: z.unknown(),
})
)
.optional(),
});
export type Message = z.infer<typeof MessageSchema>;
export const SendMessageInputSchema = z.object({
role: MessageRoleSchema.default('user'),
content: z.string().min(1),
stream: z.boolean().optional().default(true),
});
export type SendMessageInput = z.infer<typeof SendMessageInputSchema>;
// ============ Tool 相关 ============
export const ToolSchema = z.object({
name: z.string(),
description: z.string(),
category: z.string().optional(),
parameters: z.record(
z.string(),
z.object({
type: z.string(),
description: z.string(),
required: z.boolean().optional(),
})
),
});
export type Tool = z.infer<typeof ToolSchema>;
// ============ WebSocket 消息 ============
// 客户端发送的消息
export interface ClientMessage {
type: 'message' | 'cancel' | 'tool_response';
sessionId: string;
payload?: {
content?: string;
toolCallId?: string;
approved?: boolean;
};
}
// 服务端发送的消息
export interface ServerMessage {
type:
| 'connected'
| 'message_received'
| 'chunk'
| 'tool_call'
| 'tool_result'
| 'done'
| 'cancelled'
| 'error';
sessionId: string;
payload?: unknown;
}
// ============ SSE 事件 ============
export interface SSEEvent {
event?: 'connected' | 'heartbeat' | 'status' | 'log' | 'progress' | 'file_change' | 'tool_execution';
data: {
timestamp: number;
sessionId?: string;
payload: unknown;
};
}
// ============ API 响应 ============
export interface ApiResponse<T> {
success: boolean;
data?: T;
error?: string;
message?: string;
}
export interface PaginatedResponse<T> {
items: T[];
total: number;
page: number;
pageSize: number;
hasMore: boolean;
}
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/**
* WebSocket Handler
*
* 处理实时双向通信,主要用于 AI 对话流
*/
import type { WSContext } from 'hono/ws';
import { getSessionManager } from './session/manager.js';
import type { ClientMessage, ServerMessage } from './types.js';
// 存储活跃的 WebSocket 连接
const connections: Map<string, Set<WSContext>> = new Map();
/**
* 获取会话的所有连接
*/
export function getSessionConnections(sessionId: string): Set<WSContext> {
return connections.get(sessionId) || new Set();
}
/**
* 向会话的所有连接发送消息
*/
export function broadcastToSession(sessionId: string, message: ServerMessage): void {
const conns = connections.get(sessionId);
if (!conns) return;
const data = JSON.stringify(message);
for (const ws of conns) {
try {
ws.send(data);
} catch (error) {
console.error('Failed to send message:', error);
}
}
}
/**
* WebSocket 连接处理器
*/
export function handleWebSocket(ws: WSContext, sessionId: string): void {
const sessionManager = getSessionManager();
// 验证会话
if (!sessionManager.exists(sessionId)) {
ws.send(
JSON.stringify({
type: 'error',
sessionId,
payload: { message: 'Session not found' },
} as ServerMessage)
);
ws.close(4004, 'Session not found');
return;
}
// 注册连接
if (!connections.has(sessionId)) {
connections.set(sessionId, new Set());
}
connections.get(sessionId)!.add(ws);
// 更新会话状态
sessionManager.updateStatus(sessionId, 'active');
// 发送连接成功消息
ws.send(
JSON.stringify({
type: 'connected',
sessionId,
payload: { message: 'Connected to session' },
} as ServerMessage)
);
console.log(`[WS] Client connected to session: ${sessionId}`);
}
/**
* WebSocket 消息处理器
*/
export async function handleWebSocketMessage(
ws: WSContext,
sessionId: string,
data: unknown
): Promise<void> {
const sessionManager = getSessionManager();
try {
// 处理不同类型的数据
let text: string;
if (typeof data === 'string') {
text = data;
} else if (data instanceof ArrayBuffer || data instanceof SharedArrayBuffer) {
text = new TextDecoder().decode(data as ArrayBuffer);
} else if (data instanceof Blob) {
text = await data.text();
} else {
text = String(data);
}
const message: ClientMessage = JSON.parse(text);
switch (message.type) {
case 'message': {
// 用户发送消息
const userMessage = sessionManager.addMessage(sessionId, {
role: 'user',
content: message.payload?.content || '',
});
if (userMessage) {
// 广播用户消息
broadcastToSession(sessionId, {
type: 'message_received',
sessionId,
payload: userMessage,
});
// 更新状态为处理中
sessionManager.updateStatus(sessionId, 'busy');
// TODO: 调用 Agent 处理消息并流式返回
// 这里需要集成 core 模块的 Agent
// const agent = createAgent();
// for await (const chunk of agent.stream(message.payload.content)) {
// broadcastToSession(sessionId, {
// type: 'chunk',
// sessionId,
// payload: { content: chunk },
// });
// }
// 模拟响应 (后续替换为真实 Agent 调用)
setTimeout(() => {
const assistantMessage = sessionManager.addMessage(sessionId, {
role: 'assistant',
content: 'This is a placeholder response. Agent integration coming soon.',
});
broadcastToSession(sessionId, {
type: 'done',
sessionId,
payload: assistantMessage,
});
sessionManager.updateStatus(sessionId, 'idle');
}, 1000);
}
break;
}
case 'cancel': {
// 取消当前操作
// TODO: 实现取消逻辑
broadcastToSession(sessionId, {
type: 'cancelled',
sessionId,
payload: { message: 'Operation cancelled' },
});
sessionManager.updateStatus(sessionId, 'idle');
break;
}
case 'tool_response': {
// 工具执行结果 (用于人工确认场景)
// TODO: 处理工具响应
break;
}
default:
ws.send(
JSON.stringify({
type: 'error',
sessionId,
payload: { message: `Unknown message type: ${(message as any).type}` },
} as ServerMessage)
);
}
} catch (error) {
ws.send(
JSON.stringify({
type: 'error',
sessionId,
payload: {
message: error instanceof Error ? error.message : 'Failed to process message',
},
} as ServerMessage)
);
}
}
/**
* WebSocket 关闭处理器
*/
export function handleWebSocketClose(ws: WSContext, sessionId: string): void {
const conns = connections.get(sessionId);
if (conns) {
conns.delete(ws);
if (conns.size === 0) {
connections.delete(sessionId);
// 当没有连接时,更新会话状态
const sessionManager = getSessionManager();
sessionManager.updateStatus(sessionId, 'idle');
}
}
console.log(`[WS] Client disconnected from session: ${sessionId}`);
}
/**
* 获取连接统计
*/
export function getConnectionStats(): { sessions: number; connections: number } {
let totalConnections = 0;
for (const conns of connections.values()) {
totalConnections += conns.size;
}
return {
sessions: connections.size,
connections: totalConnections,
};
}
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{
"compilerOptions": {
"target": "ES2022",
"module": "NodeNext",
"moduleResolution": "NodeNext",
"lib": ["ES2022"],
"outDir": "./dist",
"rootDir": "./src",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
"declaration": true,
"declarationMap": true,
"sourceMap": true,
"resolveJsonModule": true
},
"include": ["src/**/*"],
"exclude": ["node_modules", "dist"]
}