package writecache

import (
	"time"

	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
)

type storageType string

const (
	storageTypeUndefined storageType = "null"
	storageTypeDB        storageType = "db"
	storageTypeFSTree    storageType = "fstree"
)

type Metrics interface {
	Get(d time.Duration, success bool, st storageType)
	Delete(d time.Duration, success bool, st storageType)
	Put(d time.Duration, success bool, st storageType)
	Flush(success bool, st storageType)
	Evict(st storageType)

	Estimate(db, fstree uint64)
	SetMode(m mode.Mode)
}

type metricsStub struct{}

func (s *metricsStub) Get(time.Duration, bool, storageType) {}

func (s *metricsStub) Delete(time.Duration, bool, storageType) {}

func (s *metricsStub) Put(time.Duration, bool, storageType) {}

func (s *metricsStub) Estimate(uint64, uint64) {}

func (s *metricsStub) SetMode(mode.Mode) {}

func (s *metricsStub) Flush(bool, storageType) {}

func (s *metricsStub) Evict(storageType) {}