pkg/lifecycle: Add SetPredictionHeaders method (#12755)

This method is used to add expected expiration and transition time 
for an object in GET/HEAD Object response headers.

Also fixed bugs in lifecycle.PredictTransitionTime and
getLifecycleTransitionTier in handling current and 
non-current versions.

cmd/object-handlers-common.go

@@ -19,13 +19,11 @@ package cmd
 
 import (
 	"context"
-	"fmt"
 	"net/http"
 	"regexp"
 	"strconv"
 	"time"
 
-	"github.com/minio/minio/internal/bucket/lifecycle"
 	xhttp "github.com/minio/minio/internal/http"
 )
 
@@ -262,19 +260,7 @@ func setPutObjHeaders(w http.ResponseWriter, objInfo ObjectInfo, delete bool) {
 
 	if objInfo.Bucket != "" && objInfo.Name != "" {
 		if lc, err := globalLifecycleSys.Get(objInfo.Bucket); err == nil && !delete {
-			ruleID, expiryTime := lc.PredictExpiryTime(lifecycle.ObjectOpts{
-				Name:         objInfo.Name,
-				UserTags:     objInfo.UserTags,
-				VersionID:    objInfo.VersionID,
-				ModTime:      objInfo.ModTime,
-				IsLatest:     objInfo.IsLatest,
-				DeleteMarker: objInfo.DeleteMarker,
-			})
-			if !expiryTime.IsZero() {
-				w.Header()[xhttp.AmzExpiration] = []string{
-					fmt.Sprintf(`expiry-date="%s", rule-id="%s"`, expiryTime.Format(http.TimeFormat), ruleID),
-				}
-			}
+			lc.SetPredictionHeaders(w, objInfo.ToLifecycleOpts())
 		}
 	}
 }