趋势突破均线跟踪策略

/*backtest
start: 2023-01-01 00:00:00
end: 2023-11-02 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ 
//  -----------------------------------------------------------------------------
//  Copyright 2022 Iason Nikolas | jason5480
//  Template Strategy script may be freely distributed under the MIT license.
//
//  Permission is hereby granted, free of charge, 
//  to any person obtaining a copy of this software and associated documentation files (the "Software"), 
//  to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, 
//  publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
//  subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
//  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
//  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//  -----------------------------------------------------------------------------
//
//  Authors:  @jason5480
//  Revision: v0.0.1
//  Date:     26-Feb-2022
//
//  Description
//  =============================================================================
//  This script is designed to be used as a template for building new strategies.
//  The framework provide you with a configurable implementation of the entry, exit,
//  stop loss and take profit trailing logic. The user of this script has to copy
//  it and replace the openLongPosition, openShortPosition, closeLongPosition and
//  closeShortPosition variables in the STRATEGY module according to his needs! 
//  
//  -----------------------------------------------------------------------------
//  Disclaimer:
//    1. I am not licensed financial advisors or broker dealer. I do not tell you 
//       when or what to buy or sell. I developed this software which enables you 
//       execute manual or automated trades using TradingView. The 
//       software allows you to set the criteria you want for entering and exiting 
//       trades.
//    2. Do not trade with money you cannot afford to lose.
//    3. I do not guarantee consistent profits or that anyone can make money with no 
//       effort. And I am not selling the holy grail.
//    4. Every system can have winning and losing streaks.
//    5. Money management plays a large role in the results of your trading. For 
//       example: lot size, account size, broker leverage, and broker margin call 
//       rules all have an effect on results. Also, your Take Profit and Stop Loss 
//       settings for individual pair trades and for overall account equity have a 
//       major impact on results. If you are new to trading and do not understand 
//       these items, then I recommend you seek education materials to further your
//       knowledge.
//
//    YOU NEED TO FIND AND USE THE TRADING SYSTEM THAT WORKS BEST FOR YOU AND YOUR 
//    TRADING TOLERANCE.
//
//    I HAVE PROVIDED NOTHING MORE THAN A TOOL WITH OPTIONS FOR YOU TO TRADE WITH THIS PROGRAM ON TRADINGVIEW.
//    
//    I accept suggestions to improve the script.
//    If you encounter any problems I will be happy to share with me.
//  -----------------------------------------------------------------------------
//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// SETUP ============================================================================================================
strategy(title = 'Template Trailing Strategy',
         shorttitle = 'TTS',
         overlay = true,
         pyramiding = 0,
         default_qty_type = strategy.percent_of_equity,
         default_qty_value = 100,
         initial_capital = 100000)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// FILTERS ==========================================================================================================

// INPUT ============================================================================================================
usefromDate = input.bool(defval = true, title = 'From', inline = "From Date", group = "Filters")
fromDate = input(defval = timestamp('01 Jan 2021 00:00 UTC'), title = '', inline = "From Date", group = 'Filters')
usetoDate = input.bool(defval = false, title = 'To ', inline = "To Date", group = "Filters")
toDate = input(defval = timestamp('31 Dec 2121 23:59 UTC'), title = '', inline = "To Date", group = 'Filters')

longTradesEnabled = input.bool(defval = true, title = 'Long Trades', inline = 'Trades', group = 'Filters')
shortTradesEnabled = input.bool(defval = true, title = 'Short Trades', tooltip = 'Enable long/short trades.', inline = 'Trades', group = 'Filters')

emaFilterEnabled = input.bool(defval = true, title = 'EMA Filter', tooltip = 'Enable long/short trades based on EMA.', group = 'Filters')
emaResolution = input.timeframe(defval = 'D', title = 'EMA Res/Len/Src', inline = 'EMA Filter', group = 'Filters')
emaLength = input.int(defval = 200, title = '', inline = 'EMA Filter', group = 'Filters')
emaSrc = input.source(defval = close, title = '', tooltip = 'The timeframe, period and source for the EMA calculation.', inline = 'EMA Filter', group = 'Filters')
emaAtrBandEnabled = input.bool(defval = true, title = 'EMA ATR Band', tooltip = 'Enable ATR band for EMA filter.', group = 'Filters')
filterAtrLength = input.int(defval = 5, title = 'EMA ATR Len/Mul', minval = 1, inline = 'EMA ATR', group = 'Filters')
filterAtrMul = input.float(defval = 1.0, title = '', tooltip = 'ATR length and multiplier to be used for the ATR calculation that will be added on top of the EMA filter.', minval = 0.1, step = 0.1, inline = 'EMA ATR', group = 'Filters')

// LOGIC ============================================================================================================
isWithinPeriod() => true

emaLine = request.security(syminfo.tickerid, emaResolution, ta.ema(emaSrc, emaLength))
emaAtr = ta.atr(filterAtrLength)
emaUpperBand = emaLine + filterAtrMul * emaAtr
emaLowerBand = emaLine - filterAtrMul * emaAtr
bool emaLongApproval = emaFilterEnabled ? close > (emaAtrBandEnabled ? emaUpperBand : emaLine) and open > (emaAtrBandEnabled ? emaUpperBand : emaLine) : true
bool emaShortApproval = emaFilterEnabled ? close < (emaAtrBandEnabled ? emaLowerBand : emaLine) and open < (emaAtrBandEnabled ? emaLowerBand : emaLine) : true

bool longFiltersApproval = longTradesEnabled and emaLongApproval and isWithinPeriod()
bool shortFiltersApproval = shortTradesEnabled and emaShortApproval and isWithinPeriod()

// PLOT =============================================================================================================
bgcolor(color = isWithinPeriod() ? color.new(color.gray, 90) : na, title = 'Period')

showEma = input.bool(defval = true, title = 'Show EMA Line', inline = 'EMA Show', group = 'Plot')
showEmaBand = input.bool(defval = false, title = 'Show EMA Band', tooltip = 'Show the EMA Line/Band.', inline = 'EMA Show', group = 'Plot')

emaLineColor = emaLongApproval ? color.teal : emaShortApproval ? color.maroon : color.gray
plot(series = emaFilterEnabled and showEma ? emaLine : na, color = emaLineColor, style = plot.style_line, linewidth = 2, title = 'EMA Line')
emaUpperBandPlot = plot(series = emaUpperBand, color = na, style = plot.style_line, linewidth = 1, title = 'EMA Upper Band')
emaLowerBandPlot = plot(series = emaLowerBand, color = na, style = plot.style_line, linewidth = 1, title = 'EMA Lower Band')
emaBandFillColor = emaFilterEnabled and emaAtrBandEnabled and showEmaBand ? color.new(emaLineColor, 95) : na
fill(plot1 = emaUpperBandPlot, plot2 = emaLowerBandPlot, color = emaBandFillColor, title = 'EMA Band')

// INPUT ============================================================================================================

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// STRATEGY =========================================================================================================

// INPUT ============================================================================================================
fastMALen = input.int(defval = 21, title = 'Fast/Slow SMA Length', inline = 'MA Length', group = 'Strategy')
slowMALen = input.int(defval = 49, title = '', tooltip = 'How many candles back to calculte the fast/slow SMA.', inline = 'MA Length', group = 'Strategy')

// LOGIC ============================================================================================================
fastMA = ta.sma(close, fastMALen)
slowMA = ta.sma(close, slowMALen)

bool openLongPosition = longFiltersApproval and ta.crossover(fastMA, slowMA)
bool openShortPosition = shortFiltersApproval and ta.crossunder(fastMA, slowMA)

bool closeLongPosition = longTradesEnabled and ta.crossunder(fastMA, slowMA)
bool closeShortPosition = shortTradesEnabled and ta.crossover(fastMA, slowMA)

// PLOT =============================================================================================================
var fastColor = color.new(#0056BD, 0)
plot(series = fastMA, title = 'Fast SMA', color = fastColor, linewidth = 1, style = plot.style_line)
var slowColor = color.new(#FF6A00, 0)
plot(series = slowMA, title = 'Slow SMA', color = slowColor, linewidth = 1, style = plot.style_line)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// SHARED VARIABLES =================================================================================================

// INPUT ============================================================================================================
atrLength = input.int(defval = 14, title = 'ATR Length', minval = 1, tooltip = 'How many previous candles to use for the ATR calculation.', group = 'General')

// LOGIC ============================================================================================================
// the open signals when not already into a position
bool validOpenLongPosition = openLongPosition and not (strategy.position_size > 0)
bool validOpenShortPosition = openShortPosition and not (strategy.position_size < 0)
bool validCloseLongPosition = closeLongPosition and strategy.position_size > 0
bool validCloseShortPosition = closeShortPosition and strategy.position_size < 0

// count how far are the last valid open and regular close signals
int barsSinceValidOpenLong = nz(ta.barssince(validOpenLongPosition), 999999)
int barsSinceValidOpenShort = nz(ta.barssince(validOpenShortPosition), 999999)
int barsSinceCloseLong = nz(ta.barssince(closeLongPosition), 999999)
int barsSinceCloseShort = nz(ta.barssince(closeShortPosition), 999999)

// take profit has to communicate its execution with the stop loss logic when 'TP' mode is selected
var bool longTrailingTakeProfitExecuted = false
var bool shortTrailingTakeProfitExecuted = false

// close price when the valid open signal was triggered
float openPrice = ta.valuewhen(validOpenLongPosition or validOpenShortPosition, close, 0)

float openAtr = ta.valuewhen(validOpenLongPosition or validOpenShortPosition, ta.atr(atrLength), 0)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// ENTRY ============================================================================================================

// INPUT ============================================================================================================
enableEntryTrailing = input.bool(defval = false, title = 'Enable Trailing', tooltip = 'Enable or disable the trailing for entry position.', group = 'Entry')
devEntryMethod = input.string(defval = 'PERC', title = 'Deviation Method', options = ['PERC', 'ATR'], tooltip = 'The method to calculate the Deviation for the Trailing Entry.', group = 'Entry')
devEntryPerc = input.float(defval = 1.0, title = 'Deviation %', minval = 0.01, maxval = 100, step = 0.05, tooltip = 'The step to follow the price when the open position condition is met.', group = 'Entry') / 100
devEntryAtrMul = input.float(defval = 0.5, title = 'Deviation ATR Mul', minval = 0.01, step = 0.05, tooltip = 'Multiplier to be used on the initial entrys` ATR to calculate the step for following the price, when the entry target is reached.', group = 'Entry')
ctrLongEntrySrc = input.source(defval = high, title = 'Long/Short Entry Control', inline = 'Control', group = 'Entry')
ctrShortEntrySrc = input.source(defval = low, title = '', tooltip = 'The price source to check with the entry target to trigger the entry order for Long/Short position.', inline = 'Control', group = 'Entry')

// LOGIC ============================================================================================================
var bool enterLongPosition = false

int barsSinceEnterLong = nz(ta.barssince(enterLongPosition), 999999)
bool openLongIsActive = barsSinceCloseLong >= barsSinceValidOpenLong
bool enterLongIsPending = barsSinceEnterLong >= barsSinceValidOpenLong
bool tryEnterLongPosition = longFiltersApproval and openLongIsActive and enterLongIsPending

getLongEntryPrice(baseSrc) =>
    switch devEntryMethod
        'PERC' => baseSrc * (1 + devEntryPerc)
        'ATR' => baseSrc + devEntryAtrMul * openAtr
        => na

float longEntryPrice = na
longEntryPrice := if validOpenLongPosition
    getLongEntryPrice(close)
else if tryEnterLongPosition
    math.min(getLongEntryPrice(low), nz(longEntryPrice[1], 999999))
else
    na

enterLongPosition := enableEntryTrailing ? longFiltersApproval and ta.crossover(openLongPosition ? close : ctrLongEntrySrc, longEntryPrice) : openLongPosition
bool validEnterLongPosition = enterLongPosition and not (strategy.position_size > 0)

var bool enterShortPosition = false

int barsSinceEnterShort = nz(ta.barssince(enterShortPosition), 999999)
bool openShortIsActive = barsSinceCloseShort >= barsSinceValidOpenShort
bool enterShortIsPending = barsSinceEnterShort >= barsSinceValidOpenShort
bool tryEnterShortPosition = shortFiltersApproval and openShortIsActive and enterShortIsPending

getShortEntryPrice(baseSrc) =>
    switch devEntryMethod
        'PERC' => baseSrc * (1 - devEntryPerc)
        'ATR' => baseSrc - devEntryAtrMul * openAtr
        => na
        
float shortEntryPrice = na
shortEntryPrice := if validOpenShortPosition
    getShortEntryPrice(close)
else if tryEnterShortPosition
    math.max(getShortEntryPrice(high), nz(shortEntryPrice[1]))
else
    na

enterShortPosition := enableEntryTrailing ? shortFiltersApproval and ta.crossunder(openShortPosition ? close : ctrShortEntrySrc, shortEntryPrice) : openShortPosition
bool validEnterShortPosition = enterShortPosition and not (strategy.position_size < 0)

// PLOT =============================================================================================================
var buyColor = color.new(color.green, 0)
plot(series = enableEntryTrailing ? longEntryPrice : na, title = 'Long Buy Price', color = buyColor, linewidth = 1, style = plot.style_linebr)
plot(series = enableEntryTrailing ? shortEntryPrice : na, title = 'Short Sell Price', color = buyColor, linewidth = 1, style = plot.style_linebr)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// EXIT ============================================================================================================

// INPUT ============================================================================================================
enableExitTrailing = input.bool(defval = false, title = 'Enable Trailing', tooltip = 'Enable or disable the trailing for exit position.', group = 'Exit')
devExitMethod = input.string(defval = 'PERC', title = 'Deviation Method', options = ['PERC', 'ATR'], tooltip = 'The method to calculate the Deviation for the Trailing Exit.', group = 'Exit')
devExitPerc = input.float(defval = 3.0, title = 'Deviation %', minval = 0.01, maxval = 100, step = 0.05, tooltip = 'The step to follow the price when the close position condition is met.', group = 'Exit') / 100
devExitAtrMul = input.float(defval = 0.5, title = 'Deviation ATR Mul', minval = 0.01, step = 0.05, tooltip = 'Multiplier to be used on the initial entrys` ATR to calculate the step for following the price, when the exit target is reached.', group = 'Exit')
ctrLongExitSrc = input.source(defval = low, title = 'Long/Short Exit Control', inline = 'Control', group = 'Exit')
ctrShortExitSrc = input.source(defval = high, title = '', tooltip = 'The price source to check with the entry target to trigger the entry order for Long/Short position.', inline = 'Control', group = 'Exit')

// LOGIC ============================================================================================================
var bool exitLongPosition = false

int barsSinceExitLong = nz(ta.barssince(exitLongPosition), 999999)
bool closeLongIsActive = barsSinceValidOpenLong >= barsSinceCloseLong
bool exitLongIsPending = barsSinceExitLong >= barsSinceCloseLong
bool tryExitLongPosition = isWithinPeriod() and closeLongIsActive and exitLongIsPending

getLongExitPrice(baseSrc) =>
    switch devExitMethod
        'PERC' => baseSrc * (1 - devExitPerc)
        'ATR' => baseSrc - devExitAtrMul * openAtr
        => na

float longExitPrice = na
longExitPrice := if validCloseLongPosition
    getLongExitPrice(close)
else if tryExitLongPosition
    math.max(getLongExitPrice(high), nz(longExitPrice[1], 999999))
else
    na

exitLongPosition := enableExitTrailing ? isWithinPeriod() and ta.crossunder(closeLongPosition ? close : ctrLongExitSrc, longExitPrice) : closeLongPosition

bool longIsActive = enterLongPosition or strategy.position_size > 0 and not exitLongPosition

var bool exitShortPosition = false

int barsSinceExitShort = nz(ta.barssince(exitShortPosition), 999999)
bool closeShortIsActive = barsSinceValidOpenShort >= barsSinceCloseShort
bool exitShortIsPending = barsSinceExitShort >= barsSinceCloseShort
bool tryExitShortPosition = isWithinPeriod() and closeShortIsActive and exitShortIsPending

getShortExitPrice(baseSrc) =>
    switch devExitMethod
        'PERC' => baseSrc * (1 + devExitPerc)
        'ATR' => baseSrc + devExitAtrMul * openAtr
        => na

float shortExitPrice = na
shortExitPrice := if validCloseShortPosition
    getShortExitPrice(close)
else if tryExitShortPosition
    math.min(getShortExitPrice(low), nz(shortExitPrice[1], 999999))
else
    na

exitShortPosition := enableExitTrailing ? isWithinPeriod() and ta.crossunder(closeShortPosition ? close : ctrShortExitSrc, shortExitPrice) : closeShortPosition

bool shortIsActive = enterShortPosition or strategy.position_size < 0 and not exitShortPosition

// PLOT =============================================================================================================
var sellColor = color.new(color.red, 0)
plot(series = enableExitTrailing ? longExitPrice : na, title = 'Long Sell Price', color = sellColor, linewidth = 1, style = plot.style_linebr)
plot(series = enableExitTrailing ? shortExitPrice : na, title = 'Short Sell Price', color = sellColor, linewidth = 1, style = plot.style_linebr)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// STOP LOSS ========================================================================================================

// INPUT ============================================================================================================
stopLossMethod = input.string(defval = 'PERC', title = 'Stop Loss Method', options = ['PERC', 'ATR'], tooltip = 'The method to calculate the Stop Loss (percentagewise, based on initial ATR or based on ATR changing over time).', group = 'Stop Loss - Target')
longTrailingStopLossPerc = input.float(defval = 7.5, title = 'Long/Short Stop Loss %', minval = 0.05, maxval = 100, step = 0.05, inline = 'Trailing Stop Loss Perc', group = 'Stop Loss - Target') / 100
shortTrailingStopLossPerc = input.float(defval = 7.5, title = '', minval = 0.05, maxval = 100, step = 0.05, tooltip = 'The percentage of the price decrease/increase to set the Stop Loss price target for long/short positions.', inline = 'Trailing Stop Loss Perc', group = 'Stop Loss - Target') / 100
longStopLossAtrMul = input.float(defval = 3.0, title = 'ATR Long/Short Mul ', minval = 0.1, step = 0.1, inline = 'Trailing Stop Loss ATR Multiplier', group = 'Stop Loss - Target')
shortStopLossAtrMul = input.float(defval = 3.0, title = '', minval = 0.1, step = 0.1, tooltip = 'ATR multiplier to be used for the long/short Stop Loss.', inline = 'Trailing Stop Loss ATR Multiplier', group = 'Stop Loss - Target')
enableStopLossTrailing = input.string(defval = 'TP', title = 'Enable Trailing', options = ['TP', 'ON', 'OFF'], tooltip = 'Enable the trailing for Stop Loss when Take Profit order is executed (TP) or from the start of the entry order (ON) or not at all (OFF).', group = 'Stop Loss - Trailing')
breakEvenEnabled = input.bool(defval = false, title = 'Break Even', tooltip = 'When Take Profit price target is hit, move the Stop Loss to the entry price (or to a more strict price defined by the Stop Loss %/ATR Multiplier).', group = 'Stop Loss - Trailing')

// LOGIC ============================================================================================================
getLongStopLossPrice(baseSrc) =>
    switch stopLossMethod
        'PERC' => baseSrc * (1 - longTrailingStopLossPerc)
        'ATR' => baseSrc - longStopLossAtrMul * openAtr
        => na

getLongStopLossPerc(baseSrc) =>
    (baseSrc - getLongStopLossPrice(baseSrc)) / baseSrc
    
// trailing starts when the take profit price is reached if 'TP' mode is set or from the very begining if 'ON' mode is selected
bool enableLongTakeProfitTrailing = enableStopLossTrailing == 'ON' or enableStopLossTrailing == 'TP' and longTrailingTakeProfitExecuted

// calculate trailing stop loss price when enter long position and peserve its value until the position closes
float longTrailingStopLossPrice = na
longTrailingStopLossPrice := if longIsActive
    if validEnterLongPosition
        getLongStopLossPrice(openPrice)
    else
        stopPrice = getLongStopLossPrice(enableLongTakeProfitTrailing ? high : openPrice)
        stopPrice := breakEvenEnabled and longTrailingTakeProfitExecuted ? math.max(stopPrice, openPrice) : stopPrice
        math.max(stopPrice, nz(longTrailingStopLossPrice[1]))
else
    na

getShortStopLossPrice(baseSrc) =>
    switch stopLossMethod
        'PERC' => baseSrc * (1 + shortTrailingStopLossPerc)
        'ATR' => baseSrc + shortStopLossAtrMul * openAtr
        => na

getShortStopLossPerc(baseSrc) =>
    (getShortStopLossPrice(baseSrc) - baseSrc) / baseSrc

// trailing starts when the take profit price is reached if 'TP' mode is set or from the very begining if 'ON' mode is selected
bool enableShortTakeProfitTrailing = enableStopLossTrailing == 'ON' or enableStopLossTrailing == 'TP' and shortTrailingTakeProfitExecuted

// calculate trailing stop loss price when enter short position and peserve its value until the position closes
float shortTrailingStopLossPrice = na
shortTrailingStopLossPrice := if shortIsActive
    if validEnterShortPosition
        getShortStopLossPrice(openPrice)
    else
        stopPrice = getShortStopLossPrice(enableShortTakeProfitTrailing ? low : openPrice)
        stopPrice := breakEvenEnabled and shortTrailingTakeProfitExecuted ? math.min(stopPrice, openPrice) : stopPrice
        math.min(stopPrice, nz(shortTrailingStopLossPrice[1], 999999.9))
else
    na

// PLOT =============================================================================================================
var stopLossColor = color.new(#e25141, 0)
plot(series = longTrailingStopLossPrice, title = 'Long Trail Stop', color = stopLossColor, linewidth = 1, style = plot.style_linebr, offset = 1)
plot(series = shortTrailingStopLossPrice, title = 'Short Trail Stop', color = stopLossColor, linewidth = 1, style = plot.style_linebr, offset = 1)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// TAKE PROFIT ======================================================================================================

// INPUT ============================================================================================================
takeProfitMethod = input.string(defval = 'PERC', title = 'Take Profit Method', options = ['PERC', 'ATR', 'RR'], tooltip = 'The method to calculate the Take Profit price.', group = 'Take Profit - Target')
longTakeProfitPerc = input.float(defval = 10.0, title = 'Long/Short Take Profit %', minval = 0.05, step = 0.05, inline = 'Take Profit Perc', group = 'Take Profit - Target') / 100
shortTakeProfitPerc = input.float(defval = 10.0, title = '', minval = 0.05, step = 0.05, tooltip = 'The percentage of the price increase/decrease to set the take profit price target for long/short positions.', inline = 'Take Profit Perc', group = 'Take Profit - Target') / 100
longTakeProfitAtrMul = input.float(defval = 9.0, title = 'ATR Long/Short Mul ', minval = 0.1, step = 0.1, inline = 'Take Profit ATR Multiplier', group = 'Take Profit - Target')
shortTakeProfitAtrMul = input.float(defval = 9.0, title = '', minval = 0.1, step = 0.1, tooltip = 'ATR multiplier to be used for the long/short Take Profit.', inline = 'Take Profit ATR Multiplier', group = 'Take Profit - Target')
longRiskRewardRatio = input.float(defval = 1.5, title = 'Long/Short RR Ratio ', minval = 0.1, step = 0.1, inline = 'Risk Reward Ratio', group = 'Take Profit - Target')
shortRiskRewardRatio = input.float(defval = 1.5, title = '', minval = 0.1, step = 0.1, tooltip = 'The Risk/Reward Ratio to be used for the long/short Take Profit based on the Stop Loss Price.', inline = 'Risk Reward Ratio', group = 'Take Profit - Target')

enableTakeProfitTrailing = input.bool(defval = true, title = 'Enable Trailing', tooltip = 'Enable or disable the trailing for take profit.', group = 'Take Profit - Trailing')
devTakeProfitMethod = input.string(defval = 'PERC', title = 'Deviation Method', options = ['PERC', 'ATR'], tooltip = 'The method to calculate the Deviation for the Trailing Take Profit.', group = 'Take Profit - Trailing')
devTakeProfitPerc = input.float(defval = 1.0, title = 'Deviation %', minval = 0.01, maxval = 100, step = 0.05, tooltip = 'The percentage wise step to be used for following the price, when the take profit target is reached.', group = 'Take Profit - Trailing') / 100
devTakeProfitAtrMul = input.float(defval = 1.0, title = 'Deviation ATR Mul', minval = 0.01, step = 0.05, tooltip = 'Multiplier to be used on the initial entrys` ATR to calculate the step for following the price, when the take profit target is reached.', group = 'Take Profit - Trailing')

// LOGIC ============================================================================================================
getLongTakeProfitPrice(baseSrc) =>
    switch takeProfitMethod
        'PERC' => baseSrc * (1 + longTakeProfitPerc)
        'ATR' => baseSrc + longTakeProfitAtrMul * openAtr
        'RR' => baseSrc + longRiskRewardRatio * (baseSrc - getLongStopLossPrice(baseSrc))
        => na

getLongTakeProfitPerc(baseSrc) =>
    (baseSrc - getLongTakeProfitPrice(baseSrc)) / baseSrc

// calculate take profit price when enter long position and peserve its value until the position closes
float longTakeProfitPrice = na
longTakeProfitPrice := if longIsActive and not longTrailingTakeProfitExecuted
    if validEnterLongPosition
        getLongTakeProfitPrice(openPrice)
    else
        nz(longTakeProfitPrice[1], getLongTakeProfitPrice(close))
else
    na

longTrailingTakeProfitExecuted := strategy.position_size > 0 and (longTrailingTakeProfitExecuted[1] or strategy.position_size < strategy.position_size[1] or strategy.position_size[1] == 0 and high >= longTakeProfitPrice)

longTrailingTakeProfitStepTicks = switch devTakeProfitMethod
    'PERC' => longTakeProfitPrice * devTakeProfitPerc / syminfo.mintick
    'ATR' => devTakeProfitAtrMul * openAtr / syminfo.mintick
    => na

getShortTakeProfitPrice(baseSrc) =>
    switch takeProfitMethod
        'PERC' => baseSrc * (1 - shortTakeProfitPerc)
        'ATR' => baseSrc - shortTakeProfitAtrMul * openAtr
        'RR' => baseSrc - shortRiskRewardRatio * (getShortStopLossPrice(baseSrc) - baseSrc)
        => na

getShortTakeProfitPerc(baseSrc) =>
    (getShortTakeProfitPrice(baseSrc) - baseSrc) / baseSrc

// calculate take profit price when enter short position and peserve its value until the position closes
float shortTakeProfitPrice = na
shortTakeProfitPrice := if shortIsActive and not shortTrailingTakeProfitExecuted
    if validEnterShortPosition
        getShortTakeProfitPrice(openPrice)
    else
        nz(shortTakeProfitPrice[1], getShortTakeProfitPrice(close))
else
    na

shortTrailingTakeProfitExecuted := strategy.position_size < 0 and (shortTrailingTakeProfitExecuted[1] or strategy.position_size > strategy.position_size[1] or strategy.position_size[1] == 0 and low <= shortTakeProfitPrice)

shortTrailingTakeProfitStepTicks = switch devTakeProfitMethod
    'PERC' => shortTakeProfitPrice * devTakeProfitPerc / syminfo.mintick
    'ATR' => devTakeProfitAtrMul * openAtr / syminfo.mintick
    => na

// PLOT =============================================================================================================
var takeProfitColor = color.new(#419388, 0) 
plot(series = longTakeProfitPrice, title = 'Long Take Profit', color = takeProfitColor, linewidth = 1, style = plot.style_linebr, offset = 1)
plot(series = shortTakeProfitPrice, title = 'Short Take Profit', color = takeProfitColor, linewidth = 1, style = plot.style_linebr, offset = 1)

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// QUANTITY MANAGEMENT ==============================================================================================

// INPUT ============================================================================================================
takeProfitQuantityPerc = input.float(defval = 50, title = 'Take Profit Quantity %', minval = 0.0, maxval = 100, step = 1.0, tooltip = 'The percentage of the position that will be withdrawn when the take profit price target is reached.', group = 'Quantity/Risk Management')

riskPerc = input.float(defval = 2, title = 'Capital at Risk %', minval = 1, tooltip = 'The maximum percentage of the equity to risk in every trade when no leverage is used.', group = "Quantity/Risk Management") / 100
minTrade = input.int(defval = 10, title = 'Minimum Trade Price', minval = 1, tooltip = 'The minimum trade price in Quote currency that is allowed in the exchange for a valid new position.', group = "Quantity/Risk Management")
longLeverage = input.int(defval = 1, title = 'Leverage Long/Short ', minval = 1, inline = 'Leverage', group = "Quantity/Risk Management")
shortLeverage = input.int(defval = 1, title = '', minval = 1, tooltip = 'Leverage factor used to multiply the initial risk quantity of each trade (by borrowing the remaining amount). Thus, the profits and losses are multiplied respectivelly.', inline = 'Leverage', group = "Quantity/Risk Management")

// LOGIC ============================================================================================================
var int quoteDecimalDigits = math.max(math.ceil(-1 * math.log10(syminfo.mintick * syminfo.pointvalue)), 0)

floor(number, precision) =>
    fact = math.pow(10,  precision)
    num = number * fact
    math.floor(num) / fact

ceil(number, precision) =>
    fact = math.pow(10,  precision)
    num = number * fact
    math.ceil(num) / fact
    
clamp(number, lower, highest, precision) =>
    ceil(math.max(floor(math.min(number, highest), precision), lower), precision)

getLongRiskQuoteQuantity() =>
    clamp(strategy.equity * riskPerc * longLeverage / getLongStopLossPerc(close), minTrade, strategy.equity * longLeverage, quoteDecimalDigits)
    
getLongRiskQuoteQuantityPerc() =>
    getLongRiskQuoteQuantity() / strategy.equity

getLongRiskBaseQuantity() =>
    getLongRiskQuoteQuantity() / close

float longEntryBaseQuantity = na
longEntryBaseQuantity := if longIsActive
    if validOpenLongPosition
        getLongRiskBaseQuantity()
    else
        nz(longEntryBaseQuantity[1], getLongRiskBaseQuantity())
else
    na

getShortRiskQuoteQuantity() =>
    clamp(strategy.equity * riskPerc * shortLeverage / getShortStopLossPerc(close), minTrade, strategy.equity * shortLeverage, quoteDecimalDigits)
    
getShortRiskQuoteQuantityPerc() =>
    getShortRiskQuoteQuantity() / strategy.equity

getShortRiskBaseQuantity() =>
    getShortRiskQuoteQuantity() / close

float shortEntryBaseQuantity = na
shortEntryBaseQuantity := if shortIsActive
    if validOpenShortPosition
        getShortRiskBaseQuantity()
    else
        nz(shortEntryBaseQuantity[1], getShortRiskBaseQuantity())
else
    na

// PLOT =============================================================================================================
label.new(x = validOpenLongPosition ? bar_index : na, y = na, text = 'Buy\n' + str.tostring(100 * getLongRiskQuoteQuantityPerc(), '#.##') + '%', yloc = yloc.belowbar, color = buyColor, style = label.style_label_up, textcolor = color.new(color.white, 0))
label.new(x = validOpenShortPosition ? bar_index : na, y = na, text = 'Sell\n' + str.tostring(100 * getShortRiskQuoteQuantityPerc(), '#.##') + '%', yloc = yloc.abovebar, color = sellColor, style = label.style_label_down, textcolor = color.new(color.white, 0))
label.new(x = validCloseShortPosition ? bar_index : na, y = na, text = 'Buy', yloc = yloc.belowbar, color = buyColor, style = label.style_label_up, textcolor = color.new(color.white, 0))
label.new(x = validCloseLongPosition ? bar_index : na, y = na, text = 'Sell', yloc = yloc.abovebar, color = sellColor, style = label.style_label_down, textcolor = color.new(color.white, 0))

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// ALERT MESSAGES ===================================================================================================

// INPUT ============================================================================================================
msgOpenLong = input.string(defval = 'Long: Started', title = 'Open Long/Short', inline = 'Open Message', group = 'Alert Messages')
msgOpenShort = input.string(defval = 'Short: Started', title = '', tooltip = 'Alert messages emited when open long/short position.', inline = 'Open Message', group = 'Alert Messages')
msgCloseLong = input.string(defval = 'Long: Closed at market price', title = 'Close Long/Short', inline = 'Close Message', group = 'Alert Messages')
msgCloseShort = input.string(defval = 'Short: Closed at market price', title = '', tooltip = 'Alert messages emited when close long/short position.', inline = 'Close Message', group = 'Alert Messages')
msgTPSLLong = input.string(defval = 'Long: Take Profit or Stop Loss executed', title = 'TP/SL Long/Short', inline = 'TP/SL Message', group = 'Alert Messages')
msgTPSLShort = input.string(defval = 'Short: Take Profit or Stop Loss executed', title = '', tooltip = 'Alert message emited when the first quantity target (take profit or stop loss) for long/short position is hit.', inline = 'TP/SL Message', group = 'Alert Messages')
msgSLLong = input.string(defval = 'Long: Stop Loss executed', title = 'SL Long/Short ', inline = 'SL Message', group = 'Alert Messages')
msgSLShort = input.string(defval = 'Short: Stop Loss executed', title = '', tooltip = 'Alert message emited when the second quantity stop loss target for long/short position is hit.', inline = 'SL Message', group = 'Alert Messages')
msgMaxDrawdown= input.string(defval = 'Death is the new beginning', title = 'Max Drawdown', tooltip = 'Alert message emited when the max drawdown limit is hit.', group = 'Alert Messages')

//
// ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
// POSITION ORDERS ==================================================================================================

// INPUT ============================================================================================================
maxDrawdown = input.int(defval = 25, title = 'Max Drawdown %', minval = 1, maxval = 100, tooltip = 'The maximum drawdown to stop trading.', group = "Quantity/Risk Management")

highlighting = input.bool(defval = false, title = 'Show Position Highlighter', tooltip = 'Highlight winning/lossing position.', group = 'Plot')

// LOGIC ============================================================================================================
// close on trend reversal
strategy.close(id = 'Long Entry', when = exitLongPosition, comment = 'Close Long', alert_message = msgCloseLong)

// close on trend reversal
strategy.close(id = 'Short Entry', when = exitShortPosition, comment = 'Close Short', alert_message = msgCloseShort)

// getting into LONG position
strategy.entry(id = 'Long Entry', direction = strategy.long, qty = longEntryBaseQuantity, when = enterLongPosition, alert_message = msgOpenLong)
// submit exit order for trailing take profit price also set the stop loss for the take profit percentage in case that stop loss it reached first
strategy.exit(id = 'Long Take Profit / Stop Loss', from_entry = 'Long Entry', qty_percent = takeProfitQuantityPerc, limit = enableTakeProfitTrailing ? na : longTakeProfitPrice, stop = longTrailingStopLossPrice, trail_price = enableTakeProfitTrailing ? longTakeProfitPrice : na, trail_offset = enableTakeProfitTrailing ? longTrailingTakeProfitStepTicks : na, when = longIsActive, alert_message = msgTPSLLong)
// submit exit order for trailing stop loss price for the remaining percent of the quantity not reserved by the take profit order
strategy.exit(id = 'Long Stop Loss', from_entry = 'Long Entry', stop = longTrailingStopLossPrice, when = longIsActive, alert_message = msgSLLong)

// getting into SHORT position
strategy.entry(id = 'Short Entry', direction = strategy.short, qty = shortEntryBaseQuantity, when = enterShortPosition, alert_message = msgOpenShort)
// submit exit order for trailing take profit price also set the stop loss for the take profit percentage in case that stop loss it reached first
strategy.exit(id = 'Short Take Profit / Stop Loss', from_entry = 'Short Entry', qty_percent = takeProfitQuantityPerc, limit = enableTakeProfitTrailing ? na : shortTakeProfitPrice, stop = shortTrailingStopLossPrice, trail_price = enableTakeProfitTrailing ? shortTakeProfitPrice : na, trail_offset = enableTakeProfitTrailing ? shortTrailingTakeProfitStepTicks : na, when = shortIsActive, alert_message = msgTPSLShort)
// submit exit order for trailing stop loss price for the remaining percent of the quantity not reserved by the take profit order
strategy.exit(id = 'Short Stop Loss', from_entry = 'Short Entry', stop = shortTrailingStopLossPrice, when = shortIsActive, alert_message = msgSLShort)

// limit the maximum drawdown
// strategy.risk.max_drawdown(value = maxDrawdown, type = strategy.percent_of_equity, alert_message = msgMaxDrawdown)

// PLOT =============================================================================================================
lowHighPrice = high > strategy.position_avg_price and low < strategy.position_avg_price ? longIsActive ? high : shortIsActive ? low : na
             : high > strategy.position_avg_price ? high
             : low < strategy.position_avg_price ? low
             : na

pricePlot = plot(series = lowHighPrice, title = 'Price', color = na, linewidth = 1, style = plot.style_linebr)
var posColor = color.new(color.white, 0)
posPlot = plot(series = strategy.position_avg_price, title = 'Position', color = posColor, linewidth = 1, style = plot.style_linebr)

highlightColor = lowHighPrice > strategy.position_avg_price and longIsActive or lowHighPrice < strategy.position_avg_price and shortIsActive ? takeProfitColor
               : lowHighPrice < strategy.position_avg_price and longIsActive or lowHighPrice > strategy.position_avg_price and shortIsActive ? stopLossColor
               : na

fill(plot1 = posPlot, plot2 = pricePlot, color = highlighting ? color.new(highlightColor, 90) : na, title = 'Highlight trades')

// ==================================================================================================================