626fc700d2
♻️ refactor(outbox): 抽离通用事件总线，并完成 event_type-only 收口 - ✨ 新增 `infra` 层通用 `EventBus` / `EventContract`，统一事件发布与消费协议 - 🔄 将聊天持久化链路调整为通过 `service/events` 注册 handler 并发布事件，进一步解耦业务逻辑与异步处理流程 - 🧹 移除 `chat_history_async` 旧适配实现，以及基于 `biz_type` 的兼容分发逻辑 - 📝 更新 Outbox 异步持久化决策记录，明确保留方案 A，并正式启用方案 B - 📚 同步更新 README 中关于 Outbox + Kafka 可靠异步链路的说明 - 🚚 当前 `outbox + kafka` 已与项目业务链路完全解耦，沉淀为通用、可靠性更强的消息队列能力；后续将参考消息队列的典型使用方式，逐步扩展到更多业务场景 - ✨ 补充跨不同分类事务管理器中的 `agent dao` 注册与接入支持
116 lines
3.9 KiB
Go
116 lines
3.9 KiB
Go
package cmd
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import (
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"context"
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"fmt"
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"log"
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"github.com/LoveLosita/smartflow/backend/api"
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"github.com/LoveLosita/smartflow/backend/dao"
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kafkabus "github.com/LoveLosita/smartflow/backend/infra/kafka"
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outboxinfra "github.com/LoveLosita/smartflow/backend/infra/outbox"
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"github.com/LoveLosita/smartflow/backend/inits"
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"github.com/LoveLosita/smartflow/backend/middleware"
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"github.com/LoveLosita/smartflow/backend/pkg"
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"github.com/LoveLosita/smartflow/backend/routers"
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"github.com/LoveLosita/smartflow/backend/service"
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eventsvc "github.com/LoveLosita/smartflow/backend/service/events"
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"github.com/spf13/viper"
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)
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// loadConfig 加载应用配置。
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func loadConfig() error {
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viper.SetConfigName("config")
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viper.SetConfigType("yaml")
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viper.AddConfigPath(".")
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if err := viper.ReadInConfig(); err != nil {
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return fmt.Errorf("failed to read config file: %w", err)
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}
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log.Println("Config loaded successfully")
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return nil
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}
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// Start 是应用启动入口。
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func Start() {
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if err := loadConfig(); err != nil {
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log.Fatalf("Failed to load config: %v", err)
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}
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db, err := inits.ConnectDB()
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if err != nil {
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log.Fatalf("Failed to connect to database: %v", err)
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}
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rdb := inits.InitRedis()
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limiter := pkg.NewRateLimiter(rdb)
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aiHub, err := inits.InitEino()
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if err != nil {
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log.Fatalf("Failed to initialize Eino: %v", err)
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}
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// DAO 层初始化。
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cacheRepo := dao.NewCacheDAO(rdb)
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agentCacheRepo := dao.NewAgentCache(rdb)
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_ = db.Use(middleware.NewGormCachePlugin(cacheRepo))
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userRepo := dao.NewUserDAO(db)
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taskRepo := dao.NewTaskDAO(db)
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courseRepo := dao.NewCourseDAO(db)
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taskClassRepo := dao.NewTaskClassDAO(db)
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scheduleRepo := dao.NewScheduleDAO(db)
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manager := dao.NewManager(db)
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agentRepo := dao.NewAgentDAO(db)
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outboxRepo := outboxinfra.NewRepository(db)
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// outbox 通用事件总线接线（第二阶段）：
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// 1. 读取 Kafka 配置；
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// 2. 创建 infra 级 EventBus；
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// 3. 显式注册“聊天持久化”事件处理器；
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// 4. 启动总线后台 dispatch/consume 循环。
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kafkaCfg := kafkabus.LoadConfig()
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eventBus, err := outboxinfra.NewEventBus(outboxRepo, kafkaCfg)
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if err != nil {
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log.Fatalf("Failed to initialize outbox event bus: %v", err)
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}
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if eventBus != nil {
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// 3. 在启动前完成“业务事件处理器”注册。
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// 3.1 这里显式调用 service/events，保证 infra 层不承载业务语义。
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// 3.2 若注册失败直接中止启动，避免“消息已入队但无人消费”的隐性故障。
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if err = eventsvc.RegisterChatHistoryPersistHandler(eventBus, outboxRepo, manager); err != nil {
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log.Fatalf("Failed to register chat history event handler: %v", err)
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}
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eventBus.Start(context.Background())
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defer eventBus.Close()
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log.Println("Outbox event bus started")
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} else {
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log.Println("Outbox event bus is disabled")
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}
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// Service 层初始化。
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userService := service.NewUserService(userRepo, cacheRepo)
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taskSv := service.NewTaskService(taskRepo, cacheRepo)
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courseService := service.NewCourseService(courseRepo, scheduleRepo)
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taskClassService := service.NewTaskClassService(taskClassRepo, cacheRepo, scheduleRepo, manager)
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scheduleService := service.NewScheduleService(scheduleRepo, userRepo, taskClassRepo, manager, cacheRepo)
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agentService := service.NewAgentService(aiHub, agentRepo, taskRepo, agentCacheRepo, eventBus)
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// API 层初始化。
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userApi := api.NewUserHandler(userService)
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taskApi := api.NewTaskHandler(taskSv)
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courseApi := api.NewCourseHandler(courseService)
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taskClassApi := api.NewTaskClassHandler(taskClassService)
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scheduleApi := api.NewScheduleAPI(scheduleService)
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agentApi := api.NewAgentHandler(agentService)
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handlers := &api.ApiHandlers{
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UserHandler: userApi,
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TaskHandler: taskApi,
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TaskClassHandler: taskClassApi,
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CourseHandler: courseApi,
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ScheduleHandler: scheduleApi,
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AgentHandler: agentApi,
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}
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r := routers.RegisterRouters(handlers, cacheRepo, limiter)
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routers.StartEngine(r)
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}
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