refactor: 将定时任务抽取到独立的 scheduler 包

server/internal/scheduler/scheduler.go

@@ -0,0 +1,27 @@
+package scheduler
+
+import (
+	"kenaito-conf/server/internal/dao"
+	"kenaito-conf/server/internal/logger"
+	"kenaito-conf/server/internal/model"
+	"time"
+)
+
+func Start() {
+	go func() {
+		ticker := time.NewTicker(1 * time.Minute)
+		defer ticker.Stop()
+		for range ticker.C {
+			fiveMinutesAgo := time.Now().Add(-5 * time.Minute)
+			affected, err := dao.Engine.Where("last_ping_at < ?", fiveMinutesAgo).Delete(&model.ClientInstance{})
+			if err != nil {
+				logger.SugaredLogger.Errorf("[scheduler] cleanup expired client instances error: %v", err)
+				continue
+			}
+			if affected > 0 {
+				logger.SugaredLogger.Infof("[scheduler] cleaned up %d expired client instance(s)", affected)
+			}
+		}
+	}()
+	logger.SugaredLogger.Info("[scheduler] client instance cleanup task started, interval: 1m, expire: 5m")
+}