ATR Mean Reversion Strategy V1
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © Bcullen175

//@version=5
strategy("ATR Mean Reversion", overlay=true, initial_capital=100000,default_qty_type=strategy.percent_of_equity, default_qty_value=100, commission_type=strategy.commission.percent, commission_value=6E-5) // Brokers rate (ICmarkets = 6E-5)
SLx = input(1.5, "SL Multiplier", tooltip = "Multiplies ATR to widen stop on volatile assests, Higher values reduce risk:reward but increase winrate, Values below 1.2 are not reccomended")
src = input(close, title="Source")
period = input.int(10, "ATR & MA PERIOD")
plot(open+ta.atr(period))
plot(open-ta.atr(period))
plot((ta.ema(src, period)), title = "Mean", color=color.white)

i_startTime     = input.time(title="Start Filter", defval=timestamp("01 Jan 1995 13:30 +0000"), group="Time Filter", tooltip="Start date & time to begin searching for setups")
i_endTime       = input.time(title="End Filter", defval=timestamp("1 Jan 2099 19:30 +0000"), group="Time Filter", tooltip="End date & time to stop searching for setups")

// Check filter(s)
f_dateFilter = time >= i_startTime and time <= i_endTime

atr = ta.atr(period)

// Check buy/sell conditions
var float buyPrice = 0
buyCondition    = low < (open-ta.atr(period)) and strategy.position_size == 0 and f_dateFilter
sellCondition   = (high > (ta.ema(close, period)) and strategy.position_size > 0 and close < low[1]) or high > (open+ta.atr(period))
stopDistance    = strategy.position_size > 0 ? ((buyPrice - atr)/buyPrice) : na
stopPrice       = strategy.position_size > 0 ? (buyPrice - SLx*atr): na
stopCondition   = strategy.position_size > 0 and low < stopPrice

// Enter positions
if buyCondition
    strategy.entry(id="Long", direction=strategy.long)

if buyCondition[1]
    buyPrice := open

// Exit positions
if sellCondition or stopCondition
    strategy.close(id="Long", comment="Exit" + (stopCondition ? "SL=true" : ""))
    buyPrice := na

// Draw pretty colors
plot(buyPrice, color=color.lime, style=plot.style_linebr)
plot(stopPrice, color=color.red, style=plot.style_linebr, offset=-1)
