Fibonacci Levels with Extensions

//@version=5
indicator("Fibonacci Levels with Extensions", overlay=true)

// Fibonacci levels
fibonacciLevels = array.new_float(7)
array.set(fibonacciLevels, 0, 0.0)
array.set(fibonacciLevels, 1, 0.236)
array.set(fibonacciLevels, 2, 0.382)
array.set(fibonacciLevels, 3, 0.5)
array.set(fibonacciLevels, 4, 0.618)
array.set(fibonacciLevels, 5, 0.786)
array.set(fibonacciLevels, 6, 1.0)

// Calculate Fibonacci levels between two lines
fibonacciBetweenLevels(lowLevel, highLevel) =>
    fibRange = highLevel - lowLevel
    fibLevels = array.new_float()
    for level in fibonacciLevels
        fibValue = lowLevel + (fibRange * level)
        array.push(fibLevels, fibValue)
    fibLevels

// Calculate Fibonacci levels with extensions
fibonacciWithExtensions() =>
    highestHigh = ta.highest(high, 600)
    lowestLow = ta.lowest(low, 600)
    fibLevels = fibonacciBetweenLevels(lowestLow, highestHigh)

    minGap = 200 // Minimum gap between Fibonacci lines
    while (highestHigh - lowestLow) >= minGap and array.size(fibLevels) < 1000
        lowLevel = ta.lowest(low, 150)
        highLevel = ta.highest(high, 120)
        newLevels = fibonacciBetweenLevels(lowLevel, highLevel)
        for level in newLevels
            array.push(fibLevels, level)

        lowestLow := lowLevel
        highestHigh := highLevel

    fibLevels

// Get Fibonacci levels with extensions
fibonacciLevelsExtended = fibonacciWithExtensions()

// Plot horizontal lines at Fibonacci levels
for level in fibonacciLevelsExtended
    line.new(x1=bar_index[100], y1=level, x2=bar_index, y2=level, color=color.rgb(0, 0, 0))


// // // Plot horizontal line at the last Fibonacci level
// // line.new(x1=bar_index[1], y1=lastFibLevel[array.size(lastFibLevel) - 1])[0], x2=bar_index, y2=lastFibLevel[array.size(lastFibLevel) - 1][0], color=color.rgb(0, 0, 0))

// // Get the last Fibonacci level
// lastFibLevel = fibonacciLevelsExtended[array.size(fibonacciLevelsExtended) - 1][0]

// // Plot horizontal line at the last Fibonacci level
// line.new(x1=bar_index[1], y1=lastFibLevel, x2=bar_index, y2=lastFibLevel, color=color.rgb(0, 0, 0))