package strategy

import (
	"sig-pub/pkg/indicator"
	"sig-pub/pkg/types"
	"sig-pub/pkg/types/series"
)

// 多周期k线策略
type IIntervalsSigStrategy interface {
	New() IIntervalsSigStrategy
	Meta() StrategyMeta
	Update(ctx IIntervalsSigStrategyContext)
	DriverIntervals() []types.Interval    // 驱动k线周期, 当驱动周期k线更新时则判断调用Update方法
	SubscribeIntervals() []types.Interval // 订阅k线周期, 当同一时间的订阅周期都更新时调用Update方法
}

// ISigStrategyContext 策略外部访问能力
// klineSeries, Indicator
type IIntervalsSigStrategyContext interface {
	Buy()  // 发出多信号
	Sell() // 发出空信号

	// Get [0]当前k线
	Get(interval types.Interval, offset int16) types.Kline
	// Series [offset...end]
	Series(interval types.Interval, offset, count int16) (klines series.Klines)
	// 获取窗口类型指标
	IndicatorW(interval types.Interval, name string, window int16) indicator.IIndicatorSeries
}