[#1147] node: Implement Lock\Delete requests for EC object

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/services/object/delete/exec.go

@@ -2,6 +2,7 @@ package deletesvc
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"strconv"
 
@@ -64,9 +65,32 @@ func (exec *execCtx) newAddress(id oid.ID) oid.Address {
 	return a
 }
 
-func (exec *execCtx) formSplitInfo(ctx context.Context) error {
-	var err error
-	exec.splitInfo, err = exec.svc.header.splitInfo(ctx, exec)
+func (exec *execCtx) formExtendedInfo(ctx context.Context) error {
+	_, err := exec.svc.header.head(ctx, exec)
+
+	var errSplitInfo *objectSDK.SplitInfoError
+	var errECInfo *objectSDK.ECInfoError
+
+	switch {
+	case err == nil:
+		return nil
+	case errors.As(err, &errSplitInfo):
+		exec.splitInfo = errSplitInfo.SplitInfo()
+		exec.tombstone.SetSplitID(exec.splitInfo.SplitID())
+
+		exec.log.Debug(logs.DeleteSplitInfoSuccessfullyFormedCollectingMembers)
+
+		if err := exec.collectMembers(ctx); err != nil {
+			return err
+		}
+
+		exec.log.Debug(logs.DeleteMembersSuccessfullyCollected)
+		return nil
+	case errors.As(err, &errECInfo):
+		exec.log.Debug(logs.DeleteECObjectReceived)
+		return nil
+	}
+
 	if err != nil && !apiclient.IsErrObjectAlreadyRemoved(err) {
 		// IsErrObjectAlreadyRemoved check is required because splitInfo
 		// implicitly performs Head request that may return ObjectAlreadyRemoved