package diploma

import (
	"fmt"
	"os"
)

type MetricType byte
type GroupBy byte

const (
	Cumulative    MetricType = 1
	Instant       MetricType = 2
	MaxFracDigits byte       = 7

	GroupByHour  GroupBy = 1
	GroupByDay   GroupBy = 2
	GroupByMonth GroupBy = 3

	AggregateMin byte = 1
	AggregateMax byte = 2
	AggregateAvg byte = 4
)

type TimestampCompressor interface {
	CalcRequiredSpace(uint32) int
	Append(uint32)
	Size() int
	DeleteLast()
	//LastTimestamp() uint32
}

type ValueCompressor interface {
	CalcRequiredSpace(float64) int
	Append(float64)
	Size() int
	DeleteLast()
	//LastValue() float64
}

type TimestampDecompressor interface {
	NextValue() (uint32, bool)
}

type ValueDecompressor interface {
	NextValue() (float64, bool)
}

type MeasureConsumer interface {
	Feed(uint32, float64)
	FeedNoSend(uint32, float64)
	Close() error
}

type WorkerMeasureConsumer interface {
	FeedNoSend(uint32, float64)
}

type AtreeMeasureConsumer interface {
	Feed(uint32, float64)
}

type AbortCode int

const (
	// Fatal errors
	WrongPrevPageNo               AbortCode = 1
	WriteToAtreeFailed            AbortCode = 2
	MaxAtreeSizeExceeded          AbortCode = 3
	FailedWriteToTxLog            AbortCode = 4
	ReferenceCountBug             AbortCode = 5
	WrongResultCodeBug            AbortCode = 6
	RemoveREDOFileFailed          AbortCode = 7
	FailedAtreeRequest            AbortCode = 8
	UnknownTxLogRecordTypeBug     AbortCode = 11
	HasTimestampNoValueBug        AbortCode = 12
	NoMetricBug                   AbortCode = 13
	NoLockEntryBug                AbortCode = 14
	NoXLockBug                    AbortCode = 15
	MetricAddedBug                AbortCode = 16
	NoRLockBug                    AbortCode = 17
	XLockBug                      AbortCode = 18
	FailedFreeListSerialize       AbortCode = 19
	UnknownWorkerQueueItemBug     AbortCode = 20
	UnknownMetricWaitQueueItemBug AbortCode = 21
	//
	GetRecoveryRecipeFailed      AbortCode = 26
	LoadSnapshotFailed           AbortCode = 27
	ReplayChangesFailed          AbortCode = 28
	CreateChangesWriterFailed    AbortCode = 29
	RemoveRecipeFileFailed       AbortCode = 30
	DumpSnapshotFailed           AbortCode = 31
	SearchREDOFilesFailed        AbortCode = 32
	ReplayREDOFileFailed         AbortCode = 33
	DeletePrevChangesFileFailed  AbortCode = 34
	DeletePrevSnapshotFileFailed AbortCode = 35
)

func Abort(code AbortCode, err error) {
	fmt.Println(err)
	os.Exit(int(code))
}