Hello World, Supertrend

//@version=5
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// Revised strategy for better code quality and readability.

strategy('Hello World, Supertrend', overlay=true)

// Define inputs with clear descriptions and default values.
atrPeriod = input(10, title='ATR Length')
factor = input(3, title='Factor')

// Importing the library for TradingView webhook integration.
import AlphaCentauri66367/PineTradingbotWebhook/10 as tv

// Use descriptive variable names and store sensitive information securely.
webhookKey = "WebhookReceived:8c43d5" // Consider storing keys securely outside the script.
qty = 3  // Define the quantity for the order.

// Calculate the Supertrend and its direction.
[supertrend, direction] = ta.supertrend(factor, atrPeriod)

// Plot Supertrend lines with clear labels and styles.
plot(direction < 0 ? supertrend : na, title="Up direction", color=color.green, style=plot.style_linebr)
plot(direction > 0 ? supertrend : na, title="Down direction", color=color.red, style=plot.style_linebr)

// Create functions to handle long and short entries for better modularity.
enterLong() =>
    msg = tv.makeWebhookJson(webhookKey, 'CME202403#1', 'strategy.entrylong', qty, ticker='ES', exchange='CME', lastTradeDateOrContractMonth='202403')
    alert(msg, alert.freq_once_per_bar_close)
    strategy.entry('Long#1', strategy.long)

enterShort() =>
    msg = tv.makeWebhookJson(webhookKey, 'CME202403#2', 'strategy.entryshort', qty, ticker='ES', exchange='CME', lastTradeDateOrContractMonth='202403')
    alert(msg, alert.freq_once_per_bar_close)
    strategy.entry('Short#1', strategy.short)

// Use conditional blocks to call the appropriate function based on Supertrend changes.
if ta.change(supertrend) > 0
    enterLong()

if ta.change(supertrend) < 0
    enterShort()