//Kyu Bae
//Assignment 4B
//Purpose;
// The program provides the opportunity to :
// 1) Use an if statement.
// 2) Process a simple string.
// 3) Reinforce objectives of previous lab projects.

#include <iostream.h>
#include <string.h>
#include <iomanip.h>




int SalesNumber (void);//salesperson's identification number
double SaleDollar(void);//amount salesperson sold
float BaseRate (void);//basic commission rate
char CheckCode(int iPersonId);//ckecking the code which indicate where employee works
void DoMath ( char cCode[], double dAmount, float fRate, int iPersonId);
//domath check the code and calculate the basic commission and bonus


int main(void)        //main function 
{
	int iPersonId ;   //variable for person identification  
	double dAmount;   
	float fRate;
	char cCode[3];
	iPersonId=SalesNumber();  //personid returned from salesnumber function
	dAmount=SaleDollar();     //dAmount value returned from saleDollar function.
	fRate=BaseRate();         //fRate value returned here from BaseRate func.

	cout <<"enter your region code('er' or 'wr'):"<<endl; //asking user to enter code for 
	                                                      //region in which he work
	cin.ignore();                    //passing cCode to DoMath fuction
	cin.getline(cCode,3);
		
	DoMath(cCode, dAmount, fRate,iPersonId); //pass cCode, dAmount, fRate, iPersonId
	return 0;                                // to Domath func.
}

int SalesNumber (void)          //asking user to enter his id Number
{                               //passing iPersonId to main
	int iPersonId;              //no out put
	cout <<"enter your salesperson number: " << endl;
	cin >> iPersonId;
	return iPersonId;

}


double SaleDollar (void)    //entering employee sales amount.
                            //passing the amount to main func.
{                           //no output

	double dAmount;
	cout <<"enter your sales amount(xxxxx.xx):" << endl;
	cin >> dAmount;
	return dAmount;
}


float BaseRate (void)       //entering base commission rate
{                           //passing the rate to main func.
	                        //no output.
	float fRate;
	cout <<"enter your basic commission rate(.XX): "<< endl;
	cin >> fRate;
	return fRate;
}


	
void	DoMath ( char cCode[], double dAmount,float fRate, int iPersonId)
{
	                
	//checking region code and calculating the base commission and bonus
	//passing none
	//print sales id, rate, code, base commission, and bonus
	//if wrong code is entered. print the error message and  employee id.
	double dBaseCom;

	if(strcmp(cCode, "er")==0)
		if(dAmount>1000)
		{
			dBaseCom=((dAmount*fRate)+((dAmount-1000)*(0.01)));// base commission and bonus pay calculation
			cout<<"your salesperson #: "<<iPersonId<<endl;
			cout<<"your sales dollar $"<<dAmount<<endl;
			cout<<"your commission rate: "<<fRate<<endl;
			cout<<"your region of employee: "<<"eastern region employee"<<endl;
			cout<<"your commission pay is $"<<dBaseCom<< endl;
		}
		else
		{   dBaseCom=dAmount*fRate;// just base commission if no bonus
            cout<<"your salesperson #: "<<iPersonId<<endl;
			cout<<"your sales dollar $"<<dAmount<<endl;
			cout<<"your commission rate: "<<fRate<<endl;
			cout<<"your region of employee: "<<"eastern region employee"<<endl;
		    cout<<"your commission pay is $"<< dBaseCom<<endl;
		}
	else if(strcmp(cCode, "wr")==0)  //for western region employee their base commission and bonus
		if(dAmount>2000)
		{
			dBaseCom=((dAmount*fRate)+((dAmount-2000)*(0.02)));
			cout<<"your salesperson #: "<<iPersonId<<endl;
			cout<<"your sales dollar $"<<dAmount<<endl;
			cout<<"your commission rate: "<<fRate<<endl;
			cout<<"your region of employee: "<<"western region employee"<<endl;
			cout<<"your commission pay is $"<< dBaseCom<<endl;
		}
		else
		{   dBaseCom=dAmount*fRate;  // just base commission pay
		    cout<<"your salesperson #: "<<iPersonId<<endl;
			cout<<"your sales dollar $"<<dAmount<<endl;
			cout<<"your commission rate: "<<fRate<<endl;
			cout<<"your region of employee: "<<"western region employee"<<endl;
		    cout<<"your commission pay is $"<< dBaseCom<<endl;
		}
	else
		cout<<"wrong regional Code!!!"<<endl<<cCode<<endl<< iPersonId << endl;
        //wrong error message when incorrect code is enterd.
}