//   Copyright 2022 DigitalOcean
//
//   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 ceph

// Conn interface implements only necessary methods that are used in this
// repository on top of *rados.Conn. This keeps rest of the implementation
// clean and *rados.Conn doesn't need to show up everywhere (it being more of
// an implementation detail in reality). Also it makes mocking easier for
// unit-testing the collectors.
type Conn interface {
	MonCommand([]byte) ([]byte, string, error)
	MgrCommand([][]byte) ([]byte, string, error)
	GetPoolStats(string) (*PoolStat, error)
}

// PoolStats contains data for a single pool.
// We currently only use one field but may add more from co-ceph/rados.PoolStat
type PoolStat struct {
	ObjectsUnfound uint64
}