Same high/low + DCA (only long)
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © cherepanovvsb

//@version=5
strategy("Reversal (only long)", overlay=true, margin_long=1, margin_short=1,initial_capital=1000,commission_type = strategy.commission.percent,commission_value =0.1,currency='USD', process_orders_on_close=true)
plotshape(low == low[1], style=shape.triangleup, location=location.belowbar, color=color.blue, title="1 Setup")
plotshape(low == low[1] and low[1]==low[2], style=shape.triangleup, location=location.belowbar, color=color.red, title="Triple Setup")

ATRlenght   = input.int(title="ATR length for taking profit", defval=14, group="Strategy Settings")
rewardMultiplier= input.int(title="ATR multiplier", defval=5, group="Strategy Settings")
Volatility_length=input.int(title='Volatility length',defval=5,group="Strategy Settings")
Volatility_multiplier=input.float(title='Volatility multiplier',defval=0.5,step=0.1, group="Strategy Settings")
Candles_to_wait=input.int(title='How many candles to wait after placing orders grid?',defval=4,group="Strategy Settings")

// Get ATR
atr1 = ta.atr(ATRlenght)

//Get volatility values (not ATR) 
float result = 0
for i = 0 to Volatility_length
	result+=high[i]-low[i]
volatility=result*Volatility_multiplier/Volatility_length

//Validate entrance points
validlow =  low [2]== low[1] and not na(atr1) 
validlong = validlow and strategy.position_size == 0  and low[1]<low


// Calculate SL/TP
longStopPrice = low[1]-syminfo.mintick
longStopDistance = close - longStopPrice
longTargetPrice = close + (longStopDistance * rewardMultiplier)

//Assign all variables
var tradeStopPrice = 0.0
var tradeTargetPrice = 0.0
var point1=0.0
var point2=0.0
var point3=0.0
var point4=0.0
var contracts = int(strategy.initial_capital/close)/4
if validlong 
    tradeStopPrice := longStopPrice
    tradeTargetPrice := longTargetPrice
    point1:=low[1]+volatility
    point2:=low[1]+volatility*0.75
    point3:=low[1]+volatility*0.5
    point4:=low[1]+volatility*0.25

strategy.entry ("Long1", strategy.long,limit=point1,qty=contracts, when=validlong)
strategy.entry ("Long2", strategy.long,limit=point2,qty=contracts, when=validlong)
strategy.entry ("Long3", strategy.long,limit=point3,qty=contracts, when=validlong)
strategy.entry ("Long4", strategy.long,limit=point4,qty=contracts, when=validlong)

stopcondition = ta.barssince(validlong) == Candles_to_wait

strategy.cancel("Long1",when=stopcondition)
strategy.cancel("Long2",when=stopcondition)
strategy.cancel("Long3",when=stopcondition)
strategy.cancel("Long4",when=stopcondition)
    
strategy.exit(id="Long Exit", limit=tradeTargetPrice, stop=tradeStopPrice, when=strategy.position_size > 0)

plot(strategy.position_size != 0 or validlong ? tradeStopPrice : na, title="Trade Stop Price", color=color.red, style=plot.style_linebr, linewidth=3)
plot(strategy.position_size != 0 or validlong ? tradeTargetPrice : na, title="Trade Target Price", color=color.green, style=plot.style_linebr, linewidth=3)

plot(strategy.position_size != 0? point1 : na, title="Long1", color=color.green, style=plot.style_linebr, transp=0)
plot(strategy.position_size != 0? point2 : na, title="Long2", color=color.green, style=plot.style_linebr, transp=0)
plot(strategy.position_size != 0? point3 : na, title="Long3", color=color.green, style=plot.style_linebr, transp=0)
plot(strategy.position_size != 0? point4 : na, title="Long4", color=color.green, style=plot.style_linebr, transp=0)

