Files
backend/cmd/server/app.go

108 lines
2.2 KiB
Go

package main
import (
"context"
"fmt"
"log"
"net/http"
"carrot_bbs/internal/config"
"carrot_bbs/internal/grpc/runner"
"carrot_bbs/internal/router"
"carrot_bbs/internal/service"
"gorm.io/gorm"
)
// App 应用程序结构体
type App struct {
Config *config.Config
DB *gorm.DB
Router *router.Router
PushService service.PushService
GRPCServer *runner.Server
Server *http.Server
}
// NewApp 创建应用程序
func NewApp(
cfg *config.Config,
db *gorm.DB,
r *router.Router,
pushService service.PushService,
grpcServer *runner.Server,
) *App {
return &App{
Config: cfg,
DB: db,
Router: r,
PushService: pushService,
GRPCServer: grpcServer,
}
}
// Start 启动应用程序
func (a *App) Start(ctx context.Context) error {
// 1. 启动 gRPC 服务器(在 HTTP 服务器之前)
if a.GRPCServer != nil {
log.Println("Starting gRPC server...")
if err := a.GRPCServer.Start(); err != nil {
return fmt.Errorf("failed to start gRPC server: %w", err)
}
}
// 2. 启动推送 Worker
a.PushService.StartPushWorker(ctx)
// 3. 创建 HTTP 服务器
addr := fmt.Sprintf("%s:%d", a.Config.Server.Host, a.Config.Server.Port)
log.Printf("Starting HTTP server at %s", addr)
a.Server = &http.Server{
Addr: addr,
Handler: a.Router.Engine(),
}
// 4. 启动 HTTP 服务器
go func() {
if err := a.Server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("listen: %s\n", err)
}
}()
return nil
}
// Stop 停止应用程序
func (a *App) Stop(ctx context.Context) error {
log.Println("Shutting down server...")
// 1. 停止 HTTP 服务器
if a.Server != nil {
log.Println("Stopping HTTP server...")
if err := a.Server.Shutdown(ctx); err != nil {
log.Printf("HTTP server forced to shutdown: %v", err)
}
}
// 2. 停止 gRPC 服务器
if a.GRPCServer != nil {
log.Println("Stopping gRPC server...")
a.GRPCServer.Stop()
}
// 3. 停止推送 Worker
log.Println("Stopping push worker...")
a.PushService.StopPushWorker()
// 4. 关闭数据库连接
log.Println("Closing database connection...")
sqlDB, err := a.DB.DB()
if err == nil {
sqlDB.Close()
}
log.Println("Server exited")
return nil
}