Multiple Alerts

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © pAulseperformance
// The purpose of this script is to create alerts for multiple ticker feeds. By default Tradingview makes us have to create a separate alert for each ticker/timefram. So if 
// We had a watch list of 10 different tickers we would need to create 10 different alerts.
// The aim of this script is to reduce the amount of alert creation, by creating variable alerts.


//@version=4
study("Multiple Alerts", overlay=true)
i_T1 = input('BTCUSD', type=input.symbol)
i_T2 = input('AUDUSD', type=input.symbol)
i_T3 = input('AMC', type=input.symbol)






f_strategy() =>
    smaFast = sma(close, 50)
    smaSlow = sma(close, 200)
    goLong  = crossover(smaFast, smaSlow)
    goShort = crossunder(smaFast, smaSlow)
    goLong := true
    signal = goLong ? 1 : goShort ? -1 : 0
    

f_screener(_ticker) =>
    message = ''
    
    [signal, _tickerClose, _OP, _hi] = security(_ticker, timeframe.period, [f_strategy(), close, open, high])
    
    if signal == 1 
        message := "Buy " + _ticker + "@" + tostring(_tickerClose)
    else if signal == -1
        message := "Sell " + _ticker + "@" + tostring(_tickerClose)
    
    if signal == 1 or signal == -1
        alert(message, alert.freq_once_per_bar_close)
    signal
        


t1_signal = f_screener(i_T1)
plot(t1_signal, title="T1 Signal")

t2_signal = f_screener(i_T2)
plot(t2_signal, title="T2 Signal")
t3_signal = f_screener(i_T3)
plot(t3_signal, title="T3 Signal")


plot(sma(close, 50), color=color.red)
plot(sma(close, 200), color=color.green)







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

//@version=4
study("Alerts Study")

// 3 types of alerts.
// alertcondition()
// alert()
// strategy alerts 



// Method 1
// alertcondition()

// Syntax:
//     alertcondition(condition, title, message) → void

// args:
//    condition - Required - Type: series 
//    title     - Optional - Type: const string
//    message   - Optional - Type: const string
// 
// Remarks:
//     Take up an additional plot output.
//     Must be global.


// alertcondition(true, title="alertcondition1", message="Always True") 
// alertcondition(true, title=input("alertcondition1"), message="Always True")   // Cant do this
// alertcondition(true, title="alertcondition2", message="Always True")

















// Method 2
// alert()
// alerts() are brand new in version 4. They allow us to use series strings.
// series strings are also brand new in version 4.

// Syntax:
//     alert(message, freq) → void

// args:
//    message - Required - Type: series[string] 
//    freq    - Optional - Type: input string
condition = true

// if condition
    // alert("alert() freq_all", alert.freq_all)
    
// alert("Alert freq_once_per_bar", alert.freq_once_per_bar)
// alert("Alert freq_once_per_bar_close", alert.freq_once_per_bar_close)



// Notes:
// alert("Close: {{close}}") // This doesn't work.
alert("Close: " + tostring(close)) // Do this instead





plot(na)