//Kyu Bae
//Program 9B
//3-12-00
//Purpose:
//This program provides the opportunity to :
//1) Process 2 pallel arrays.
//2) Reinforce objectives of previous lab projects.

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

void CheckNum(int iProductIdArr[], int iQuantityArr[]);
void PrintInvoice(int iProductIdArr[], int iQuantityArr[]);


//input: none
//call check function and print function
//output : return o
int main (void)
{
	char cAnswer;
	

	int iProductIdArr[8]={101,102,103,104,105,106,107,108};
	int iQuantityArr[8]={0,0,0,0,0,0,0,0};

	do
	{
		cout<<"Do you have a order to place? "<<endl;
		cin>>cAnswer;
	
	if(cAnswer=='n' || cAnswer=='N')
		break;
	else
		CheckNum( iProductIdArr, iQuantityArr);
	}
	while (cAnswer=='Y'|| cAnswer=='y');
	
	PrintInvoice( iProductIdArr, iQuantityArr);

	return 0;

}
//input: iProductIdArr
//enter product number and number of order they place 
//output: none

void CheckNum (int iProductIdArr[],int iQuantityArr[])
{
	
	int iItemNum;
	int iHowMany;
	int i;
		cout<<"Enter the product Number: "<<endl;
		cin>>iItemNum;
	  
	for (i=0; i<8 && iItemNum != iProductIdArr[i]; i++)
		  ; //null loop
		
	if (i<8)
		{ cout<<"How many do you want to order? "<<endl;
		cin>>iHowMany;
		 iQuantityArr[i]=iQuantityArr[i]+ iHowMany;
	
		}
	else

	cout<<"You entered invalid product number!!!"<<endl;

	
}
//input: product number and quantity of product.
//print the total list of product and quantity of product.
//output: none.
void PrintInvoice(int iProductIdArr[], int iQuantityArr[])
{
	int i;
	
	cout<<setw(10)<<"**********"<<setw(20)<<"**********"<<endl;
	cout<<setw(10)<<"ProductNum"<<setw(20)<<" Quantity "<<endl;
	cout<<setw(10)<<"**********"<<setw(20)<<"**********"<<endl;

	for (i=0;i<8;i++)
		cout<<setw(10)<<iProductIdArr[i]<<setw(20)<<iQuantityArr[i]<<endl;


}