I need 3 MQL5 Indicators Converted to a Class

I need the six attached indicators converted to a class so they can be used inside of another program 

- Create a class called CIndicator

- The class should have the means to load 

    - Open
    - High
    - Low
    - Close
    - Spread
    - TickVolume

    For a specified currency pair and date range one time.  For instance in the constructor or a Load function is fine as well

- Create a function in the class for each indicator using the body of the OnCalculate()
- Each function should have the ability to accept array ref to replace the buffers currently being filled by the OnCalculate of the indicators.
- Each function should also have the ability to accept whatever parameters are defined in the Input parameters of the indicators

#define SUCCESS 0

class CIndicator {

public: 

template<typename T>
int X1(T &buffer1[], T &buffer2[]) {

    // Here place the code from the OnCalculate function from the attached indicator
        
    return(SUCCESS)
}

         

The intended use of this class will be something like 

// Buffer Arrays
double b1[], b2[], b3[]

// Class Declaration
CIndicator cIndicator("EURUSD",PERIOD_H1,D'2019.01.01 00:00:00', D'2019.01.02 23:23:59');

// Function Call
cIndicator.X1(b1,b2,b3);


for(int i=0;i < ArraySize(b1); i++) {
    // do stuff
}