// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// Licensed 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 querynode

import (
	"context"

	"github.com/milvus-io/milvus/internal/msgstream"
	"github.com/milvus-io/milvus/internal/types"
)

type historical struct {
	replica      ReplicaInterface
	loadService  *loadService
	statsService *statsService
}

func newHistorical(ctx context.Context,
	masterService types.MasterService,
	dataService types.DataService,
	indexService types.IndexService,
	factory msgstream.Factory) *historical {
	replica := newCollectionReplica()
	ls := newLoadService(ctx, masterService, dataService, indexService, replica)
	ss := newStatsService(ctx, replica, ls.segLoader.indexLoader.fieldStatsChan, factory)

	return &historical{
		replica:      replica,
		loadService:  ls,
		statsService: ss,
	}
}

func (h *historical) start() {
	h.loadService.start()
	h.statsService.start()
}

func (h *historical) close() {
	h.loadService.close()
	h.statsService.close()

	// free collectionReplica
	h.replica.freeAll()
}