ফিবোনাচি রিট্রেসমেন্টের উপর ভিত্তি করে অভিযোজিত মাল্টি-লেভেল ট্রেডিং কৌশল

/*backtest
start: 2024-08-26 00:00:00
end: 2024-09-24 08:00:00
period: 4h
basePeriod: 4h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
strategy("Simple Fibonacci Retracement Strategy", overlay=true, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// Input period for high and low points identification
lookback = input.int(100, title="Lookback Period", minval=10)

// Input to choose Fibonacci calculation direction
fib_direction = input.string(title="Fibonacci Direction", defval="Top to Bottom", options=["Top to Bottom", "Bottom to Top"])

// Input for Fibonacci levels
fib_level_236 = input.float(0.236, title="Fib 23.6% Level")
fib_level_382 = input.float(0.382, title="Fib 38.2% Level")
fib_level_50 = input.float(0.5, title="Fib 50% Level")
fib_level_618 = input.float(0.618, title="Fib 61.8% Level")

// Input to choose the level for entry signals
buy_entry_level = input.string(title="Buy Entry Level", defval="Fib 61.8%", options=["Fib 23.6%", "Fib 38.2%", "Fib 50%", "Fib 61.8%"])
sell_entry_level = input.string(title="Sell Entry Level", defval="Fib 38.2%", options=["Fib 23.6%", "Fib 38.2%", "Fib 50%", "Fib 61.8%"])

// Input for take profit and stop loss in pips
take_profit_pips = input.int(50, title="Take Profit (pips)")
stop_loss_pips = input.int(20, title="Stop Loss (pips)")

// Identify high and low points within the lookback period
highestHigh = ta.highest(high, lookback)
lowestLow = ta.lowest(low, lookback)

// Calculate Fibonacci levels based on the selected direction
var float fib_0 = na
var float fib_100 = na
var float fib_236 = na
var float fib_382 = na
var float fib_50 = na
var float fib_618 = na

if fib_direction == "Top to Bottom"
    fib_0 := highestHigh
    fib_100 := lowestLow
    fib_236 := highestHigh - (highestHigh - lowestLow) * fib_level_236
    fib_382 := highestHigh - (highestHigh - lowestLow) * fib_level_382
    fib_50 := highestHigh - (highestHigh - lowestLow) * fib_level_50
    fib_618 := highestHigh - (highestHigh - lowestLow) * fib_level_618
else
    fib_0 := lowestLow
    fib_100 := highestHigh
    fib_236 := lowestLow + (highestHigh - lowestLow) * fib_level_236
    fib_382 := lowestLow + (highestHigh - lowestLow) * fib_level_382
    fib_50 := lowestLow + (highestHigh - lowestLow) * fib_level_50
    fib_618 := lowestLow + (highestHigh - lowestLow) * fib_level_618

// Determine which level to use for buy and sell signals based on user input
var float buy_fib_level = na
var float sell_fib_level = na

if buy_entry_level == "Fib 23.6%"
    buy_fib_level := fib_236
if buy_entry_level == "Fib 38.2%"
    buy_fib_level := fib_382
if buy_entry_level == "Fib 50%"
    buy_fib_level := fib_50
if buy_entry_level == "Fib 61.8%"
    buy_fib_level := fib_618

if sell_entry_level == "Fib 23.6%"
    sell_fib_level := fib_236
if sell_entry_level == "Fib 38.2%"
    sell_fib_level := fib_382
if sell_entry_level == "Fib 50%"
    sell_fib_level := fib_50
if sell_entry_level == "Fib 61.8%"
    sell_fib_level := fib_618

// Convert pips to price units (assuming 1 pip = 0.0001 for currency pairs like EURUSD)
pip_value = syminfo.mintick * 10
take_profit = take_profit_pips * pip_value
stop_loss = stop_loss_pips * pip_value

// Trading signals
var bool longSignal = na
var bool shortSignal = na

if fib_direction == "Top to Bottom"
    longSignal := ta.crossover(close, buy_fib_level) and close > buy_fib_level
    shortSignal := ta.crossunder(close, sell_fib_level) and close < sell_fib_level
else
    longSignal := ta.crossover(close, buy_fib_level) and close > buy_fib_level
    shortSignal := ta.crossunder(close, sell_fib_level) and close < sell_fib_level

// Execute trades based on signals with take profit and stop loss
if (longSignal)
    strategy.entry("Long", strategy.long, comment="BUY")
    strategy.exit("Take Profit/Stop Loss", "Long", limit=close + take_profit, stop=close - stop_loss)

if (shortSignal)
    strategy.entry("Short", strategy.short, comment="SELL")
    strategy.exit("Take Profit/Stop Loss", "Short", limit=close - take_profit, stop=close + stop_loss)

// Plot Fibonacci levels
plot(fib_0, title="Fib 0%", color=color.blue, linewidth=1, style=plot.style_line)
plot(fib_236, title="Fib 23.6%", color=color.green, linewidth=1, style=plot.style_line)
plot(fib_382, title="Fib 38.2%", color=color.green, linewidth=1, style=plot.style_line)
plot(fib_50, title="Fib 50%", color=color.red, linewidth=1, style=plot.style_line)
plot(fib_618, title="Fib 61.8%", color=color.green, linewidth=1, style=plot.style_line)
plot(fib_100, title="Fib 100%", color=color.blue, linewidth=1, style=plot.style_line)

// Create labels for Fibonacci levels with white text
var label fibLabel0 = na
var label fibLabel236 = na
var label fibLabel382 = na
var label fibLabel50 = na
var label fibLabel618 = na
var label fibLabel100 = na

if (na(fibLabel0))
    fibLabel0 := label.new(bar_index, fib_0, text="Fib 0%", color=na, textcolor=color.white, style=label.style_label_right, yloc=yloc.price)
    fibLabel236 := label.new(bar_index, fib_236, text="Fib 23.6%", color=na, textcolor=color.white, style=label.style_label_right, yloc=yloc.price)
    fibLabel382 := label.new(bar_index, fib_382, text="Fib 38.2%", color=na, textcolor=color.white, style=label.style_label_right, yloc=yloc.price)
    fibLabel50 := label.new(bar_index, fib_50, text="Fib 50%", color=na, textcolor=color.white, style=label.style_label_right, yloc=yloc.price)
    fibLabel618 := label.new(bar_index, fib_618, text="Fib 61.8%", color=na, textcolor=color.white, style=label.style_label_right, yloc=yloc.price)
    fibLabel100 := label.new(bar_index, fib_100, text="Fib 100%", color=na, textcolor=color.white, style=label.style_label_right, yloc=yloc.price)
else
    label.set_xy(fibLabel0, bar_index, fib_0)
    label.set_xy(fibLabel236, bar_index, fib_236)
    label.set_xy(fibLabel382, bar_index, fib_382)
    label.set_xy(fibLabel50, bar_index, fib_50)
    label.set_xy(fibLabel618, bar_index, fib_618)
    label.set_xy(fibLabel100, bar_index, fib_100)

// Plot signals
plotshape(series=longSignal, location=location.belowbar, color=color.green, style=shape.labelup, title="Buy Signal", text="BUY")
plotshape(series=shortSignal, location=location.abovebar, color=color.red, style=shape.labeldown, title="Sell Signal", text="SELL")

// Plot highest and lowest points
plot(highestHigh, title="Highest High", color=color.purple, linewidth=2, offset=-lookback)
plot(lowestLow, title="Lowest Low", color=color.purple, linewidth=2, offset=-lookback)