//@version=6
indicator("Three Strike Detector", overlay=true)

// Function to define a long candle
// Function to define a long candle
is_long_candle(open, high, close, low, min_length) =>
    body_length = math.abs(close - open)
    total_range = high - low
    
    // Long candle condition:
    // 1. Body is at least min_length of the total range
    body_length >= total_range * min_length

// Function to detect the three strike pattern
is_three_strike(open, high, close, low) =>
    // Define minimum body length for long candles
    min_long_body = 0.5  // Adjust this value as needed

    // Check for bullish three strike
    isBullishLong1 = is_long_candle(open[1], high[1], close[1], low[1], min_long_body) and close[1] < close[2]
    isBullishLong2 = is_long_candle(open[2], high[2], close[2], low[2], min_long_body) and close[2] < close[3]
    isBullishLong3 = is_long_candle(open[3], high[3], close[3], low[3], min_long_body)
    isBullishEngulfing = open[4] < low[3] and close[4] > high[1]
    isBullishThreeStrike = isBullishLong1 and isBullishLong2 and isBullishLong3 and isBullishEngulfing

    // Check for bearish three strike
    isBearishLong1 = is_long_candle(open[1], high[1], close[1], low[1], min_long_body) and close[1] > close[2]
    isBearishLong2 = is_long_candle(open[2], high[2], close[2], low[2], min_long_body) and close[2] > close[3]
    isBearishLong3 = is_long_candle(open[3], high[3], close[3], low[3], min_long_body)
    isBearishEngulfing = open[4] > high[3] and close[4] < low[1]
    isBearishThreeStrike = isBearishLong1 and isBearishLong2 and isBearishLong3 and isBearishEngulfing

    [isBullishThreeStrike, isBearishThreeStrike]

[isBullTS, isBearTS] = is_three_strike(open, high, close, low)

// Plot the three strike pattern with an arrow
plotchar(isBullTS, 
         title="Three Strike", 
         char="3", 
         location=location.belowbar, 
         color=color.green, 
         size=size.small)

plotchar(isBearTS, 
         title="Three Strike", 
         char="3", 
         location=location.belowbar, 
         color=color.red, 
         size=size.small)