package com

import "github.com/banbox/banta"

/*
IchimokuCloud

sml: 9, mid: 26, big: 52, disp: 26
return [smlMa, midMa, spanA, spanB]
*/
func IchimokuCloud(e *banta.BarEnv, sml, mid, big, disp int) *banta.Series {
	res := e.Close.To("_ichimokuCld", big*100000+mid*1000+disp*10+sml)
	if res.Cached() {
		return res
	}
	// earlier
	h := e.High.Back(disp - 1)
	l := e.Low.Back(disp - 1)
	hhSml := banta.Highest(h, sml).Get(0)
	llSml := banta.Lowest(l, sml).Get(0)
	hhMid := banta.Highest(h, mid).Get(0)
	llMid := banta.Lowest(l, mid).Get(0)
	hhBig := banta.Highest(h, big).Get(0)
	llBig := banta.Lowest(l, big).Get(0)

	smlMa := (hhSml + llSml) / 2
	midMa := (hhMid + llMid) / 2
	bigMa := (hhBig + llBig) / 2
	spanA := (smlMa + midMa) / 2

	// Current
	h, l = e.High, e.Low
	hhSml = banta.Highest(h, sml).Get(0)
	llSml = banta.Lowest(l, sml).Get(0)
	hhMid = banta.Highest(h, mid).Get(0)
	llMid = banta.Lowest(l, mid).Get(0)

	smlMa2 := (hhSml + llSml) / 2
	midMa2 := (hhMid + llMid) / 2
	return res.Append([]float64{smlMa2, midMa2, spanA, bigMa})
}