// 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 importutilv2

import (
	"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
	"github.com/milvus-io/milvus/internal/storage"
	"github.com/milvus-io/milvus/internal/util/importutilv2/binlog"
)

type Reader interface {
	Read() (*storage.InsertData, error)
	Close()
}

func NewReader(cm storage.ChunkManager,
	schema *schemapb.CollectionSchema,
	paths []string,
	options Options,
	bufferSize int64,
) (Reader, error) {
	if IsBackup(options) {
		tsStart, tsEnd, err := ParseTimeRange(options)
		if err != nil {
			return nil, err
		}
		return binlog.NewReader(cm, schema, paths, tsStart, tsEnd)
	}

	return nil, nil
}