Candlestick Counter.txt

//@version=5
indicator("Candlestick Counter", overlay=true)

// Input for the number of candles to look back
lookback = input.int(30, "Number of candles to look back", minval=0, maxval=150, step=1, confirm=true)

// Counters for green and red candles
var int greenCandles = 0
var int redCandles = 0
var float totalPercentageChange = na

// Find the highest high and lowest low in the lookback period
var float highestHigh = na
var float lowestLow = na

// Creating a box for the lookback period
var box lookbackBox = na

// Variable to store the label
var label lookbackLabel = na

// Variable for the trend line
var line trendLine = na

if barstate.islast
    // Reset the counters for each calculation
    greenCandles := 0
    redCandles := 0
    highestHigh := high[0]
    lowestLow := low[0]

    // Loop through the last 'lookback' candles
    for i = 0 to lookback - 1
        if close[i] > open[i]
            greenCandles := greenCandles + 1
        else if close[i] < open[i]
            redCandles := redCandles + 1

        // Update highest high and lowest low
        if high[i] > highestHigh
            highestHigh := high[i]
        if low[i] < lowestLow
            lowestLow := low[i]

    // Calculating the total percentage gain/loss for the lookback period
    totalPercentageChange := ((close[0] - close[lookback - 1]) / close[lookback - 1]) * 100

    // Determine box color based on total percentage change
    boxColor = totalPercentageChange > 0 ? color.green : color.red

    // Define the coordinates for the box
    boxStart = bar_index - lookback + 1
    boxEnd = bar_index

    // Create or update the box
    if na(lookbackBox)
        lookbackBox := box.new(left=boxStart, top=highestHigh, right=boxEnd, bottom=lowestLow, bgcolor=color.new(boxColor, 90), border_color=boxColor)
    else
        box.set_left(lookbackBox, boxStart)
        box.set_right(lookbackBox, boxEnd)
        box.set_top(lookbackBox, highestHigh)
        box.set_bottom(lookbackBox, lowestLow)
        box.set_bgcolor(lookbackBox, color.new(boxColor, 90))
        box.set_border_color(lookbackBox, boxColor)

    // Calculate the middle bar index for the label
    int middleBarIndex = boxStart + math.round((boxEnd - boxStart) / 2)

    // Delete the existing label if it exists
    if na(lookbackLabel) != true
        label.delete(lookbackLabel)

    // Create a new label for the lookback summary
    lookbackLabel := label.new(x=middleBarIndex, y=lowestLow, text="Green: " + str.tostring(greenCandles) + " Red: " + str.tostring(redCandles) + "\nTotal % Change: " + str.tostring(totalPercentageChange), style=label.style_label_up, color=color.white, yloc=yloc.price)

    // Delete the existing trend line if it exists
    if na(trendLine) != true
        line.delete(trendLine)

    // Determine the color of the trend line based on total percentage change
    lineColor = totalPercentageChange > 0 ? color.green : color.red

    // Create a new trend line from the first to the last candle of the lookback period
    trendLine := line.new(x1=bar_index - lookback + 1, y1=close[lookback - 1], x2=bar_index, y2=close[0], width=1, color=lineColor)

// Main script for additional labels
if barstate.islast
    // Label for the last candle's closing price
    label.new(bar_index, high, text="" + str.tostring(close[0]), color=color.blue, style=label.style_label_down, yloc=yloc.abovebar)

    // Label for the 30th candle's closing price
    if bar_index >= lookback - 1
        label.new(bar_index - lookback + 1, high[lookback - 1], text="" + str.tostring(close[lookback - 1]), color=color.green, style=label.style_label_down, yloc=yloc.abovebar)