// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package datanode

import (
	"errors"
	"fmt"

	"github.com/milvus-io/milvus-proto/go-api/commonpb"
	"github.com/milvus-io/milvus/internal/util/errorutil"
	"github.com/milvus-io/milvus/internal/util/typeutil"
)

var (
	// errSegmentStatsNotChanged error stands for segment stats not changed.
	errSegmentStatsNotChanged = errors.New("segment stats not changed")
)

func msgDataNodeIsUnhealthy(nodeID UniqueID) string {
	return fmt.Sprintf("DataNode %d is not ready", nodeID)
}

func errDataNodeIsUnhealthy(nodeID UniqueID) error {
	return errors.New(msgDataNodeIsUnhealthy(nodeID))
}

func setNotServingStatus(status *commonpb.Status, stateCode commonpb.StateCode) {
	reason := fmt.Sprintf("sate code: %s", stateCode.String())
	status.Reason = errorutil.NotServingReason(typeutil.DataNodeRole, Params.DataCoordCfg.GetNodeID(), reason)
	status.ErrorCode = commonpb.ErrorCode_NotReadyServe
}