// graceful/shutdown.go
package graceful

import (
	"context"
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"git.x2erp.com/qdy/go-base/container"
	"git.x2erp.com/qdy/go-base/logger"
)

// WaitForShutdown 带可选清理函数的优雅关闭
func WaitForShutdown(serviceName string, containerFactory *container.ContainerFactory, servers ...*http.Server) {

	quit := make(chan os.Signal, 1)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)

	log.Printf("按 Ctrl+C 停止服务 %s", serviceName)

	// 等待信号
	<-quit
	log.Printf("接收到终止信号，正在优雅关闭服务 %s...", serviceName)

	//退出注册中心
	//consul.Deregister(s.serviceName, s.Ip, s.Port, b.Cfg.GetConsulConfig())

	// 创建关闭上下文，给30秒完成当前请求
	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()

	for _, srv := range servers {
		p := srv.Addr
		if err := srv.Shutdown(ctx); err != nil {
			log.Printf("服务 %s 关闭失败: %v", p, err)
		} else {
			log.Printf("服务 %s 已关闭", p)
		}
	}

	// 停止接收新请求，完成当前请求

	// 执行关闭处理
	if containerFactory != nil {
		containerFactory.CloseAll()
	}

	// 停止日志写入
	logger.StopESWriter()
	log.Printf("%s 服务全部优雅关闭完成", serviceName)

	// 等待一小段时间确保日志写入完成
	time.Sleep(100 * time.Millisecond)
	os.Exit(0)
}