more optimisation

internal/utils/utils.go

@@ -7,6 +7,7 @@ import (
 	"net"
 	"os"
 	"path/filepath"
+	"strconv"
 	"time"
 )
 
@@ -70,3 +71,29 @@ func SleepWithContext(ctx context.Context, d time.Duration) {
 	case <-timer.C:
 	}
 }
+
+// EnvInt parses an environment variable into an int; returns (value, true) when set and valid.
+func EnvInt(key string) (int, bool) {
+	val := os.Getenv(key)
+	if val == "" {
+		return 0, false
+	}
+	parsed, err := strconv.Atoi(val)
+	if err != nil {
+		return 0, false
+	}
+	return parsed, true
+}
+
+// DurationFromEnv parses an environment variable representing seconds into a duration, defaulting when unset/invalid.
+func DurationFromEnv(key string, fallback time.Duration) time.Duration {
+	val := os.Getenv(key)
+	if val == "" {
+		return fallback
+	}
+	seconds, err := strconv.ParseInt(val, 10, 64)
+	if err != nil || seconds <= 0 {
+		return fallback
+	}
+	return time.Duration(seconds) * time.Second
+}