// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © maruful_islam


//@version=5
indicator("~Delta crosses MA Threshold", overlay = true, max_boxes_count = 5)

//_______ Inputs _______

l1 = input(4, "Smallest Base Lookback")
l2 = l1 * 2
l3 = l1 * 3
l4 = int(l1 * 4.5)
l5 = l1 * 5
l6 = l1 * 6
l7 = l6 * 3


//_______ Colors _______
c1 = color.rgb(128,128,128)
c2 = color.rgb(229,228,226)
c3 = color.rgb(54,69,79)

c4 = color.rgb(0,255,0)
c5 = color.rgb(74,93,35)
c6 = color.rgb(28,172,120)
c7 = color.rgb(102,221,170)

c8 = color.rgb(0,0,128)
c9 = color.rgb(114, 184, 255)

c10 = color.rgb(186,85,211)
c11 = color.rgb(221, 95, 41)
c12 = color.rgb(128,0,0)
c13 = color.rgb(227,0,34)

v =  volume
o = open
c = close
vbuy = 0.0
vsell = 0.0

if c > o
    vbuy := v * math.abs(o / c - 1)
if c < o
    vsell := v * math.abs(o / c - 1)

delta = ta.cum(vbuy - vsell)
cvd_ma = ta.alma(delta, l2, 0.85, 6)
cvd_ema = ta.ema(delta, 9)

//barcolor( delta > cvd_ma ? c9 : c11)

//----Normalization Function

n(s,l) =>
    hi = ta.highest(s, l) 
    lo = ta.lowest(s, l) 
    n = (s - lo) / (hi - lo)+1
    n

v00 = 0.0, b00 = 0.0, s00 = 0.0
d00 = 0.0
nd00 = 0.0


//_______ peckerponzi original rotation _______
//----Trigger Rotation

v00 := n(volume,l6)


if close > open
    b00 :=  v00 * math.abs(open / close - 1)
    b00 

if close < open
    s00 := v00 * math.abs(open / close - 1)
    s00

d00 := ta.cum(b00 - s00)
nd00 := (n(d00,l6) -1.5)*2.0
nd00 := ta.alma(nd00,l6,0.95,6)
nd10 = ta.rma(nd00,2)


//----Fast Rotation

v01 = n(volume,l7)
b01 = 0.0, s01 = 0.0

if close > open
    b01 :=  v01 * math.abs(open / close - 1)
    b01 

if close < open
    s01 := v01 * math.abs(open / close - 1)
    s01

d01 = ta.cum(b01 - s01)
nd01 = (n(d01,l7) -1.5)*2.0
nd01 := ta.alma(nd01,l7,0.90,6)
nd11 = ta.rma(nd01,3)

color1 = nd01 > nd11 ? c9 : c12
//fill(plot(nd01,'Fast Rotation',color1),plot(nd11,'Smooth Fast Rotation',color1),color=color1)

//fill(hline(1,'1',#FF52528F,linestyle=hline.style_solid),hline(0.75,'0.75',#FF52528F,linestyle=hline.style_dotted),color= nd00 > 0.75 and nd00 < nd10  ? #FF5252CF : #FF52522F)
//hline(0,'0',#FFFFFF8F,linestyle=hline.style_solid)
//fill(hline(-0.75,'-0.75',#00BCD48F,linestyle=hline.style_dotted),hline(-1,'-1',#00BCD48F,linestyle=hline.style_solid),color= nd00 < -0.75 and nd00 > nd10 ? #00BCD4CF : #00BCD42F)

//----Basic Single Alert

bool vis_alert = input(true, 'Show Alert?')
threshold = input(0.90,'Alert Threshold')
long = ta.crossover(nd01,nd11) and nd01 <= - threshold and nd00 > nd10
short = ta.crossunder (nd01,nd11) and nd01 >= threshold and nd00 < nd10
cond = long or short

bgcol = long ? #00BCD4 : short ? #FF5252 : na
//bgcolor(vis_alert ? bgcol : na ,title='Alert Trigger')
alertcondition(cond, title='Rotations X', message='Rotations X')

// ~Delta crosses MA Threshold

highest = ta.highest(high, 48)


if ta.crossunder (nd01,nd11) and nd01 >= threshold and nd00 < nd10
    distance_up = ((highest - close)/close)*100
    box_resistance = box.new( bar_index, close+distance_up, bar_index+70, close, border_color=color.rgb(0,0,0,100), bgcolor = color.maroon)


lowest = ta.lowest(low, 48)
if ta.crossover(nd01,nd11) and nd01 <= - threshold and nd00 > nd10
    distance_dn = ((close-lowest)/close)*100
    box_support = box.new(bar_index, close, bar_index+40, close+distance_dn, border_color = color.rgb(242, 242, 242, 100), bgcolor = color.teal)