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/*backtest
start: 2022-11-01 00:00:00
end: 2023-10-14 05:20:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

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

//@version=5
strategy(title="J2S Backtest: 123-Stormer Strategy",
         shorttitle="J2S Backtest: 123-Stormer Strategy",
         overlay=true, initial_capital=1000, default_qty_value=10,
         default_qty_type = strategy.percent_of_equity, pyramiding=0)

// Initial Backtest Date Range
useStartDate = timestamp("01 Jan 2020 21:00:00")
useEndDate   = timestamp("01 Jan 2023 21:00:00")

// User Inputs
SIGNAL_CONFIG          = "BACKTEST: STORMER STRATEGY (123)"
longEntryInput         = input.bool(defval=true,         title="Long Entry",                     group=SIGNAL_CONFIG)
shortEntryInput        = input.bool(defval=true,         title="Short entry",                    group=SIGNAL_CONFIG)
thresholdForEntryInput = input.int(defval=3,             title="Threshold on clandes for entry", group=SIGNAL_CONFIG)
insideBarStrategyTitle = "Only third candle inside bar is valid"
insideBarStrategyTip   = "According to Stomer, it would be the best signal for the strategy"
insideBarStrategyInput = input.bool(defval=true,         title=insideBarStrategyTitle,           group=SIGNAL_CONFIG, tooltip=insideBarStrategyTip)
EMA_CONFIG             = "BACKTEST: EXPONENTIAL MOVING AVERAGES"
sourceInput            = input.source(defval=close,      title="Source",           inline="01",  group=EMA_CONFIG)
emaTimeframeInput      = input.timeframe("1W",           title="Timeframe",        inline="01",  group=EMA_CONFIG)
emaOffsetInput         = input.int(defval=8,             title="Offset",           inline="01",  group=EMA_CONFIG)
fastEMALengthInput     = input.int(defval=8,             title="Fast EMA Length",  inline="02",  group=EMA_CONFIG)
useFastEMAInput        = input.bool(defval=true,         title="Use Fast EMA",     inline="02",  group=EMA_CONFIG)
slowEMALengthInput     = input.int(defval=80,            title="Slow EMA Length",  inline="03",  group=EMA_CONFIG)
useSlowEMAInput        = input.bool(defval=true,         title="Use Slow EMA",     inline="03",  group=EMA_CONFIG)
PERIOD_CONFIG          = "BACKTEST: TIME PERIOD"
useDateFilterInput     = input.bool(defval=true,         title="Filter Date Range of Backtest",  group=PERIOD_CONFIG)
backtestStartDateInput = input(defval=useStartDate, title="Start Date",                     group=PERIOD_CONFIG)
backtestEndDateInput   = input(defval=useEndDate,   title="End Date",                       group=PERIOD_CONFIG)

// Colors
bbBackgroundColor  = color.rgb(33, 150, 243, 90)
candleColorDown    = color.rgb(239, 83, 80, 80)
candleColorUp      = color.rgb(38, 166, 154, 70)
insideBarColorDown = color.rgb(239, 83, 80, 40)
insideBarColorUp   = color.rgb(38, 166, 154, 20)
downTrendColor     = color.rgb(239, 83, 80, 80)
sidewaysTrendColor = color.rgb(252, 232, 131, 80)
upTrendColor       = color.rgb(38, 166, 154, 80)
buySignalColor     = color.lime
sellSignalColor    = color.orange

// Candles
isCandleUp()   => close > open
isCandleDown() => close <= open
barcolor(isCandleUp() ? candleColorUp : isCandleDown() ? candleColorDown : na)

// Exponential Moving Averages
fastEMA         = request.security(syminfo.tickerid, emaTimeframeInput, ta.ema(sourceInput, fastEMALengthInput),    barmerge.gaps_on,  barmerge.lookahead_on)
currentFastEMA  = request.security(syminfo.tickerid, emaTimeframeInput, ta.ema(sourceInput, fastEMALengthInput),    barmerge.gaps_off, barmerge.lookahead_on)
previousFastEMA = request.security(syminfo.tickerid, emaTimeframeInput, ta.ema(sourceInput[1], fastEMALengthInput), barmerge.gaps_off, barmerge.lookahead_on)
slowEMA         = request.security(syminfo.tickerid, emaTimeframeInput, ta.ema(sourceInput, slowEMALengthInput),    barmerge.gaps_on,  barmerge.lookahead_on)
currentSlowEMA  = request.security(syminfo.tickerid, emaTimeframeInput, ta.ema(sourceInput, slowEMALengthInput),    barmerge.gaps_off, barmerge.lookahead_on)
previousSlowEMA = request.security(syminfo.tickerid, emaTimeframeInput, ta.ema(sourceInput[1], slowEMALengthInput), barmerge.gaps_off, barmerge.lookahead_on)

// Trend Rules for Exponential Moving Averages
isSlowEMAUp()   => currentSlowEMA > previousSlowEMA
isSlowEMADown() => currentSlowEMA < previousSlowEMA
isFastEMAUp()   => currentFastEMA > previousFastEMA
isFastEMADown() => currentFastEMA < previousFastEMA

// Exponential Moving Average Colors
fastEMAColor = isFastEMAUp() ? upTrendColor : isFastEMADown() ? downTrendColor : sidewaysTrendColor
slowEMAColor = isSlowEMAUp() ? upTrendColor : isSlowEMADown() ? downTrendColor : sidewaysTrendColor

// Display Exponential Moving Averages
plot(useFastEMAInput ? fastEMA : na, offset=emaOffsetInput, color=fastEMAColor, title="Fast EMA", style=plot.style_line, linewidth=4)
plot(useSlowEMAInput ? slowEMA : na, offset=emaOffsetInput, color=slowEMAColor, title="Slow EMA", style=plot.style_line, linewidth=7)

// Price Trend
pricesAboveFastEMA() => low[2] > currentFastEMA and low[1] > currentFastEMA and low > currentFastEMA
pricesAboveSlowEMA() => low[2] > currentSlowEMA and low[1] > currentSlowEMA and low > currentSlowEMA
pricesBelowFastEMA() => high[2] < currentFastEMA and high[1] < currentFastEMA and high < currentFastEMA
pricesBelowSlowEMA() => high[2] < currentSlowEMA and high[1] < currentSlowEMA and high < currentSlowEMA

// Market in Bullish Trend
isBullishTrend() =>
    if useFastEMAInput and useSlowEMAInput
        pricesAboveFastEMA() and pricesAboveSlowEMA()
    else if useFastEMAInput
        pricesAboveFastEMA()
    else if useSlowEMAInput
        pricesAboveSlowEMA()
    else
        na

// Market in Bearish Trend
isBearishTrend() =>
    if useFastEMAInput and useSlowEMAInput
        pricesBelowFastEMA() and pricesBelowSlowEMA()
    else if useFastEMAInput
        pricesBelowFastEMA()
    else if useSlowEMAInput
        pricesBelowSlowEMA()
    else
        na

// Stormer Strategy (123)
isFirstCandleUp()   => high[2] > high[1] and low[2] > low[1]
isFirstCandleDown() => high[2] < high[1] and low[2] < low[1]
isThirdCandleUp()   => low > low[1]
isThirdCandleDown() => high < high[1]
isThirdCandleInsideBar() => high < high[1] and low > low[1]

// Buy Signal
isStormer123Buy() =>
    if insideBarStrategyInput
        longEntryInput and isFirstCandleUp() and isThirdCandleInsideBar() and isBullishTrend()
    else
        longEntryInput and isFirstCandleUp() and isThirdCandleUp() and isBullishTrend()

// Sell Signal
isStormer123Sell() =>
    if insideBarStrategyInput
        shortEntryInput and isFirstCandleDown() and isThirdCandleInsideBar() and isBearishTrend()
    else
        shortEntryInput and isFirstCandleDown() and isThirdCandleDown() and isBearishTrend()

// Backtest Time Period
inTradeWindow             = true
isInTradeWindow()         => inTradeWindow
isBacktestDateRangeOver() => not inTradeWindow and inTradeWindow[1]

// Backtest Price Parameters
highestPrice = ta.highest(high, 3)
lowestPrice  = ta.lowest(low,3)
priceRange   = highestPrice - lowestPrice

// Stormer Strategy (123): LONG
var myLongOrders = array.new_int(0)
longtEntryID     = "Long Entry:\n" + str.tostring(bar_index)
longExitID       = "Long Exit:\n" + str.tostring(bar_index)
stopLossInLong   = lowestPrice + 0.01
takeProfitInLong = priceRange + high

longEntryHasBeenMet = isInTradeWindow() and isBullishTrend() and isStormer123Buy()

// Scheduling LONG entry
if longEntryHasBeenMet
    array.push(myLongOrders, bar_index)
    strategy.order(longtEntryID, strategy.long, stop=high)
    strategy.exit(longExitID, longtEntryID, stop=stopLossInLong, limit=takeProfitInLong)

// In pine script, any order scheduled but not yet filled can be canceled.
// Once a order is filled, the trade is only finished with use of close or exit functions.
// As scheduled orders are not stored in the strategy.opentrades array, manual control is required.
for myOrderIndex = 0 to (array.size(myLongOrders) == 0 ? na : array.size(myLongOrders) - 1)
    myLongOrder = array.get(myLongOrders, myOrderIndex)
    if bar_index - myLongOrder == thresholdForEntryInput
        longEntryID = "Long Entry:\n" + str.tostring(myLongOrder)
        strategy.cancel(longEntryID)

// Stormer Strategy (123): SHORT
var myShortOrders = array.new_int(0)
shortEntryID      = "Short Entry:\n" + str.tostring(bar_index)
shortExitID       = "Short Exit:\n" + str.tostring(bar_index)
stopLossInShort   = highestPrice + 0.01
takeProfitInShort = low - priceRange

shortEntryHasBeenMet = isInTradeWindow() and isBearishTrend() and isStormer123Sell()

// Scheduling SHORT entry
if shortEntryHasBeenMet
    array.push(myShortOrders, bar_index)
    strategy.order(shortEntryID, strategy.short, stop=low)
    strategy.exit(shortExitID, shortEntryID, stop=stopLossInShort, limit=takeProfitInShort)

// In pine script, any order scheduled but not yet filled can be canceled.
// Once a order is filled, the trade is only finished with use of close or exit functions.
// As scheduled orders are not stored in the strategy.opentrades array, manual control is required.
for myOrderIndex = 0 to (array.size(myShortOrders) == 0 ? na : array.size(myShortOrders) - 1)
    myShortOrder = array.get(myShortOrders, myOrderIndex)
    if bar_index - myShortOrder == thresholdForEntryInput
        shortEntryID := "Short Entry:\n" + str.tostring(myShortOrder)
        strategy.cancel(shortEntryID)

// Close all positions at the end of the backtest period
if isBacktestDateRangeOver()
    strategy.cancel_all()
    strategy.close_all(comment="Date Range Exit")

// Display Signals
plotshape(series=longEntryHasBeenMet,  title="123 Buy",  style=shape.triangleup,   location=location.belowbar, color=buySignalColor,  text="123", textcolor=buySignalColor)
plotshape(series=shortEntryHasBeenMet, title="123 Sell", style=shape.triangledown, location=location.abovebar, color=sellSignalColor, text="123", textcolor=sellSignalColor)