Greeffer's Hedge Mode Strategy

// @Greeffer Hedge Mode Study

// @version=5

// S T U D Y
// indicator(shorttitle="Hedge Study", title="Greeffer's Hedge Mode Study", overlay=true)

// S T R A T E G Y 
strategy(
     "Greeffer's Hedge Mode Strategy",
     "Hedge Strategy",
     overlay=true, 
     pyramiding=1,
     default_qty_type=strategy.percent_of_equity,
     default_qty_value=200,
     initial_capital=5000,
     commission_type=strategy.commission.percent,
     commission_value=0.01,
     margin_long=1./20*50, 
     margin_short=1./20*50
     )

// I N P U T S
longOrShort = input(title="Long", defval=true, tooltip="Uncheck to Short") //<-------- todo: get rid of this var
//var longOrShort = true
entryAmount = input(title="Entry Amount", defval=0.001) //<---------------todo: handle position size in azure
exitAmount = input(title="Exit Amount", defval=0.001)  //<----------------todo: handle position size in azure
donchianupper = input(title="upper donchian channel period", defval=1440)
donchianlower = input(title="lower donchian channel period", defval=1440)


// V A R S
symbol = "BTCUSDT" //symbol = "ETHUSDT"
short = false
long = false
plots = 2000 // plot this many bars back


// E M A s
// plots = 2500 // plot this many bars back

ema08 = ta.ema(close, 8)
ema17 = ta.ema(close,17)
ema72 = ta.ema(close,72)

red = request.security("BTCUSDT", "240", ema08)
orange = request.security("BTCUSDT", "240", ema17)
yellow = request.security("BTCUSDT", "240", ema72)

plot(red,title="EMA 08", color=color.red, linewidth=1, style=plot.style_line) //, show_last=plots
plot(orange, title="EMA 17", color=color.orange, linewidth=2, style=plot.style_line)
plot(yellow,title="EMA 72", color=color.yellow, linewidth=3, style=plot.style_line)


// D O N C H I A N   C H A N N E L S
lower = ta.lowest(donchianlower)
upper = ta.highest(donchianupper)
middle= (upper-lower)/2+lower
plot(middle, title='Middle', color=color.green, linewidth=1)
plot(upper, title='Upper', color=color.orange, linewidth=1) 
plot(lower, title='Lower', color=color.orange, linewidth=1)


// B O L L I N G E R   B A N D S
//length = input(20, minval=1)
//src = input(close, title="Source")
//mult = input(4.0, minval=0.001, maxval=50, title="StdDev")
//basis = sma(src, length)
//dev = mult * stdev(src, length)
//bbUpper = basis + dev
//bbLower = basis - dev
//bbw = (upper-lower)/basis


// E N T R Y / E X I T   C o n d i t i o n s 

// L o n g :
if close>=upper and longOrShort==true
    long:=true
else
    long:=false

if close<=lower and longOrShort==true
    long:=true
else 
    long:=false

// S h o r t
if close>=upper and longOrShort==false
    short:=true
else
    short:=false

if close<=lower and longOrShort==false
    short:=true
else 
    short:=false


// O R D E R S :

// L o n g 
if long==true and longOrShort==true
    alert(message='{"side":"longHedge","stopPrice":"'+str.tostring(math.round(lower))+'","middle":"'+str.tostring(math.round(middle))+'","symbol":"'+symbol+'","close":"'+str.tostring(close)+'","amount":"'+str.tostring(entryAmount)+'"}', freq=alert.freq_once_per_bar_close)

if short==true and longOrShort==true
    alert(message='{"side":"closeLong","middle":"'+str.tostring(math.round(middle))+'","symbol":"'+symbol+'","close":"'+str.tostring(close)+'","amount":"'+str.tostring(exitAmount)+'"}', freq=alert.freq_once_per_bar_close)

// S h o r t
if short==true and longOrShort==false
    alert(message='{"side":"shortHedge","stopPrice":"'+str.tostring(math.round(upper))+'","middle":"'+str.tostring(math.round(middle))+'","symbol":"'+symbol+'","close":"'+str.tostring(close)+'","amount":"'+str.tostring(entryAmount)+'"}', freq=alert.freq_once_per_bar_close)

if long==true and longOrShort==false
    alert(message='{"side":"closeShort","middle":"'+str.tostring(math.round(middle))+'","symbol":"'+symbol+'","close":"'+str.tostring(close)+'","amount":"'+str.tostring(exitAmount)+'"}', freq=alert.freq_once_per_bar_close)