39 Lezione Personale 2 How To Debug Pine Script

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © Maurizio-Ciullo

// https://www.youtube.com/watch?v=0hDTYCd-u3w&t=937s
// https://it.tradingview.com/script/XQClwWbb-Logger/

//@version=5
indicator("2 How To Debug Pine Script Code The Art Of Trading", overlay=true)
//plot(close)

// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<    // Diplay //    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


                        // Possiamo avere differenti visulizzazioni nelle nostre finestre.
// plot(... display=display.all) I valori si vedranno ovunque
// plot(... display=display.status_line) I valori si vedranno solo nella barra di stato del grafico
// plot(... display=display.all - display.status_line) I valori si vedranno ovunque tranne nella barra di stato del grafico

emaTicker0 = request.security(syminfo.tickerid, "1D", ta.ema(close, 50))
// plot(emaTicker0, title="emaTicker0", color=color.green, display=display.all)
// plot(emaTicker0, title="emaTicker0", color=color.green, display=display.status_line)
plot(emaTicker0, title="emaTicker0", color=color.green, display=display.all - display.status_line)

// Cambio il ticker
emaTicker1 = request.security("BYBIT:BTCUSDT.P", "1D", ta.ema(close, 50))
// plot(emaTicker1, title="emaTicker1", color=color.red, display=display.all)
// plot(emaTicker1, title="emaTicker1", color=color.red, display=display.status_line)
plot(emaTicker1, title="emaTicker1", color=color.red, display=display.all - display.status_line)

// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<    // Plottare Indicatori Diversi Ticker/Timeframes Con Label//    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

string debugString0 = ""
debugString0 := debugString0 + "ema50= [" + str.tostring(emaTicker0) + "]" + " tiker = " + (syminfo.tickerid) + "\n"

string debugString1 = ""
debugString1 := debugString1 + "ema50= [" + str.tostring(emaTicker1) + "]" + " tiker = " + ("BYBIT:BTCUSDT.P") + "\n"

if barstate.islast // label.new y= il punto dove vogliamo ancorare la label, in questo caso sulla media
    label.new(bar_index, emaTicker0, debugString0, text="debugString", color=color.black, textcolor = color.white, textalign = text.align_left)
if barstate.islast
    label.new(bar_index, emaTicker1, debugString1, text="debugString", color=color.black, textcolor = color.white, textalign = text.align_left)

// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<    // Altro //    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

// Si possono usare alert con un messaggio all'interno per essere notificati da un messaggio o un'email.
// Si possono esportare i deti della candele e degli indicatori ma solo con la versione premium.


// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<    // Inizio Library Logger //    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

// Il seguente è una libreria che permette il debug in modo facile e visibile, link sotto.
// Si può usare per qualsiasi cosa: Plot elemento/Cicli/Array/Method/Custom Funcition/If Statement Etc... .
// https://it.tradingview.com/script/XQClwWbb-Logger/

// Inizio Import Library Logger //

// import HeWhoMustNotBeNamed/Logger/2 as log           // Importo la libreria aggiornata 2 as l
// var logger = log.Logger.new(minimumLevel = 'DEBUG')  // Creo una variabile persistente e richiamo la  libreria creando un nuovo legger type
// logger.init()                                        // Inizializzo con init
// Aprire il link in alto per vedere il significato dei parametri di log.Logger.new //

// Fine Import Library Logger //


// Inizio Test Logger 1 //

import HeWhoMustNotBeNamed/Logger/2 as log
// var logger1 = log.Logger.new() // In basso abbiamo la lista di quello che vogliamo fare
//     pageSize: size of each page of logs which can be shown on UI. Default is 10
//     maxEntries: max size logs to be stored
//     pageNumber: current page number of logs to display on chart
//     textSize: size of text on debug table to be shown. default is size.small. Other options - size.tiny, size.normal, size.large, size.huge, size.auto
//     textColor: text color of debug messages. Default is color.white
//     showOnlyLast: If set, shows the logs derived only from last bar. Default is true
//     minimumLevel: Minimum level of logs to be considered for logging. Valid values in ascending order - `TRACE`, `DEBUG`, `INFO`, `WARN`,

//logger1.init()

// //In basso abbiamo la lista di quello che vogliamo fare
// //Nel nostro caso andremo ad utilizzare info()
// logger1.trace('TEST Trace Level')  // Sul grafico da sinistra a destra: Index/Bar Index/Date/Time/Trace Level/Message
// logger1.debug('TEST DEBUG Level')
// logger1.info('TEST INFO Level')
// logger1.warn('TEST WARN Level')
// logger1.error('TEST ERROR Level')
// logger1.fatal('TEST FATAL Level')

//{
// var logger1 = log.Logger.new(showOnlyLast = false, pageSize = 20, pageNumber = 10)
// logger1.init()

// logger1.info('BarOpen' + str.tostring(open))
//}

// Fine Test Logger 1 //


// Inizio Test Logger 2 //
// Esempio di debug error su condizioni più complesse come verificare la lunghezza di un array.

//{
//  float[] priceArray = array.from(0.1, 2.5, 5.0) // Creazione di un array float lunghezza 3 elementi
// if barstate.islast
//     label.new(bar_index, 0, "Array Size Is: " + str.tostring(array.size(priceArray)))  // Mi ritorna la lunghezza "size" dell'array

// var logger2 = log.Logger.new(showOnlyLast = false)
// logger2.init()
// if array.size(priceArray) != 2
//     logger2.error('!!! Array Size Is != ' + str.tostring(array.size(priceArray)))
// else
//     logger2.info('OK Array Size Is ' + str.tostring(array.size(priceArray)))
//}

// Fine Test Logger 2 //


// Inizio Test Logger 3 //
//{
float valore = 0.0
for i = 0 to 11
    valore := close[i]

var logger3 = log.Logger.new(showOnlyLast = false, pageSize = 10)
logger3.init()
logger3.info('valore ' + str.tostring(valore))
plot(valore, color=color.blue, title="valore")
//}

// Fine Test Logger 3 //

// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<    // Fine Library Logger //    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>