package control

import (
	"context"
	"errors"

	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control"
	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control/server/ctrlmessage"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

func (s *Server) DetachShards(_ context.Context, req *control.DetachShardsRequest) (*control.DetachShardsResponse, error) {
	err := s.isValidRequest(req)
	if err != nil {
		return nil, status.Error(codes.PermissionDenied, err.Error())
	}

	shardIDs := s.getShardIDList(req.GetBody().GetShard_ID())

	if err := s.s.DetachShards(shardIDs); err != nil {
		if errors.As(err, new(logicerr.Logical)) {
			return nil, status.Error(codes.InvalidArgument, err.Error())
		}
		return nil, status.Error(codes.Internal, err.Error())
	}

	resp := &control.DetachShardsResponse{
		Body: &control.DetachShardsResponse_Body{},
	}

	if err = ctrlmessage.Sign(s.key, resp); err != nil {
		return nil, status.Error(codes.Internal, err.Error())
	}

	return resp, nil
}