Coding problem to initiate buy trade

1. Create an indicator handle in OnInit.

2. In OnTick, determine the moment when the price crossed the iMA indicator - remember this date.

3. If there is a stored date, use CopyRates third form:

int  CopyRates(
   string           symbol_name,       // symbol name
   ENUM_TIMEFRAMES  timeframe,         // period
   datetime         start_time,        // start date and time
   datetime         stop_time,         // end date and time
   MqlRates         rates_array[]      // target array to copy
   );

and looking for three vertices.