package sentio

import (
	"cmp"
	"time"
)

type Strategy interface {
	Name() string

	Model() string
	MarketId() string
	PositionSymbols() map[Side]string
	Interval() uint8
	Cooldown(periods uint8) time.Duration

	Handle(market Market, ts time.Time, proba float64) ([]StrategyOrder, error)
}

type StrategyOrder struct {
	Symbol string      `yaml:"symbol"`
	Action OrderAction `yaml:"action"`
	Size   float64     `yaml:"size"`
}

func CompareStrategyOrders(a, b StrategyOrder) int {
	if a.Action == b.Action {
		return cmp.Compare(b.Size, a.Size)
	}

	if OrderSell == a.Action {
		return -1
	}

	return 1
}