Alert for an indicator

Hello,

I have indicator that doesn't support sound and email alert, so I want to build an indicator based one this one that will support sound and email alert when this indicator change from green to red or from red to green, bellow is the description of the task.

((( Job Requirments )))

the task is to build an indicator based on another indicator to do the following:

1) There should be an option for sound alert (true,false)

2) There should be an option for email alert (true,false)

3) the message should contain the currency pair, the timeframe, buy signal if change from red to green and sell signal if change from green to red.(example: GBPUSD,1H,BUY Signal alert)

3) There should be option for how many green bars or red bars before alert rising ( example , after the indicator change from green to red by 1 bar then alert ,after the indicator change from green to red by 2 bars then alert)(( I need this option if is it possible))

4) Provide the source code for this task.