Bollinger Band Alert -2

I would like to build an indicator based on Bollinger Band. 

Please have a look at the attached pictures.

When a candle cross BB the indicator must measure the distance from BB to the close price of that candle. 

The candle has to be minimum 100  points (10 pips)  and maximum 500 points (Highest High and Lowest Low). 

An arrow has to show exactly at 00:00 time when the candle close the price.

If the candle is 15 min, the arrow has to show up exactly at (an example) 12:15:00  12:30:00 etc....

Not at 12:16:45 or ….. ONLY at 12:15:00

At the same moment an alert should pop up 12:15:00 .

When the candle will close the price and all specs are inline the arrow should stay in the history for the last 1000 candles. 

If the conditions change 1 sec later, and the distance changed from the BB to the close price IT DOES NOT MATTER.

The arrow MUST BE above the candle if it is SELL signal or candle has to be under the candle if it is BUY signal ALL the time. 

THE MOST IMPORTANT IS THE EXACT TIME 12:15:00.

 No ticks no another excuse for delay, it must be exact time pop up 00:00. 

In variables i would like to have these parameters:

-The averaging period of the main line 20

-Deviation from the main line 2.0

-Shift of medium -1 

-Type of the price – Close Price

-Distance from Bollinger Band to the closed price      20

-Candle minimum Size 100

-Candle maximum size  500

-Arrow distance from the Highest High or Lowest Low level     10

-Alert,

-Push notification

-/ Arrows color for BUY - Dark Green

-/ Arrows color for Sell - Orange 

-/ Arrows distance from the Highest High or Lowest Low level  - 15 points

Please add expiration time for this indicator and protection in the code for account NAME (not account number) . 

Source code in English only. Thank you. 

I have a source code from the previous programmer and it is not what I wanted, but it may give you an idea.