package tacitus

import (
	"github.com/shopspring/decimal"

	"time"
)

type Aggregation struct {
	Id               int             `json:"id"`
	Interval         int             `json:"interval"`
	Product          string          `json:"product"`
	Price            decimal.Decimal `json:"price"`
	BuyVolume        decimal.Decimal `json:"buy_volume"`
	SellVolume       decimal.Decimal `json:"sell_volume"`
	BuyTransactions  int             `json:"buy_transactions"`
	SellTransactions int             `json:"sell_transactions"`
	Timestamp        time.Time       `json:"timestamp"`
}

type AggregationService interface {
	Aggregation(interval int, product string, timestamp time.Time) (Aggregation, error)
	CreateAggregation(a Aggregation) (Aggregation, error)
	UpdateAggregation(a Aggregation) (Aggregation, error)
	MissingTimes(interval int, product string) (Results, error)
}