// Name:  Alan Helms
// Class: CPT 232 C++ I
// Times: MWF 9:00 - 9:50
// Semester: Spring 1-27-2003
// Project Name: BurgerJoint_vf3x.cpp
// Program Purpose: To create a burger stand program, which has burgers for
//                  $2, hotdogs for $1, and drinks for $1. Program needs to
//                  get user to input the # of each item, calculate a total,
//                  and allow the user to pay and recieve change. Change will
//                  be presented as a total figure; then presented in
//                  denominations.
//
// ****NOTE: CREATED WITH BORLAND'S C++ v5.02 EDITIOR****
// ****NOTE: MODIFIED FOR MICORSOFT VISUAL STUDIO C++****

#include<iostream>

using std::cout;
using std::cin;
using std::endl;

int main(){

	char yes_NO; // determines if order is needed.
   int bj_Burger, mj_Hotdog, jb_Drink; //input vars. for items.
   int collectPay, changeBack; // collect payment, return change, testing.
   int total; // the sum of the all the items.

   // outputs, "EAT AT JOE'S", the title of the program to screen.
   cout << endl;
   cout <<"        *****    *    ***** \n";
   cout <<"        *       * *     *   \n";
   cout <<"        ***    *****    *   \n";
   cout <<"        *      *   *    *   \n";
   cout <<"        *****  *   *    *   \n";

   cout <<"\n";  // line break

   cout <<"              *    ***** \n";
   cout <<"             * *     *   \n";
   cout <<"            *   *    *   \n";
   cout <<"            *****    *   \n";
   cout <<"            *   *    *   \n";
   cout <<"            *   *    *   \n";

   cout <<"\n"; // line break

   cout <<"    *****  *****  *****  **   ****  \n";
   cout <<"      *    *   *  *      *   *      \n";
   cout <<"      *    *   *  ****        ****  \n";
   cout <<"  *   *    *   *  *               * \n";
   cout <<"  *****    *****  *****       ****  \n";

   cout <<"\n"; // line break

   // end of title

   // Prompt user with intro to program and intructions
   cout <<"Welcome to \"EAT AT JOE's\" resturant. We have the \"BIG\n";
   cout <<"JOE\" BURGER for $2, the \"MIGHTY JOE\" HOTDOG for $1, and\n";
   cout <<"\"JOE'S BOTTOMLESS\" BEVERAGES for $1.\n";

   // prompt: ask user if wishes to make a purchase
   cout << "Would you like to place an order?(y == yes, n == no)\n";
   cin >> yes_NO;   // is a char var. data type.

   	// detemines wheather var "yes_NO" is yes or no
   	if ((yes_NO == 'y') || (yes_NO == 'Y')){

   		// Prompt user to enter the number of each item
   		cout <<"Please enter the quanity beside each item";
         cout << " and press <ENTER>." << endl;

   		// user enter the data here
         cout <<"    \"BIG JOE\" BURGER\r"; // returns to beginning of line
         cin  >> bj_Burger;
         // the following three conditions  
         if (bj_Burger < 0){
         		cout << "You enter an invalid integer. Please try again.\n";
               cout <<"    \"BIG JOE\" BURGER\r";
               cin  >> bj_Burger;
            }

   		cout <<"    \"MIGHTY JOE\" HOTDOG\r"; 
         cin  >> mj_Hotdog;
         	if (mj_Hotdog < 0 ){
         		cout << "You enter an invalid integer. Please try again.\n";
               cout <<"    \"MIGHTY JOE\" HOTDOG\r";
               cin  >> mj_Hotdog;
           	}

   		cout <<"    \"JOE'S BOTTOMLESS\" BEVERAGES\r";
         cin  >> jb_Drink;
         	if (jb_Drink < 0 ){
         		cout << "You enter an invalid integer. Please try again.\n";
               cout <<"    \"JOE'S BOTTOMLESS\" BEVERAGES\r";
               cin  >> jb_Drink;
            }

         // add the value of items and assigns to var. total
         total = (bj_Burger * 2) + mj_Hotdog + jb_Drink;
         cout << "\nYour total is $" << total << "." << endl;

         // prompts user to enter the amount of money needed to
         // purchase the item(s).
         cout << "Enter the amount of tender collected.\n";
         cin >> collectPay; // that value is stored here



         // if payment not equal to price of items
         // condition determine how much change to give back.
         if (collectPay >= total){

            // makes the change
         	changeBack = collectPay - total;

            // outputs var changeBack to screen
         	cout << "\nYour change is ($"<<changeBack<<").\n";
            cout << "-----------------------\n";

            if (changeBack != 0){

            	// delcare vars for calc the number of each U.S. denominations
            	// to be returned the user.
            	int hundreds, fifties, twenties, tens, fives, ones;

            	// outputs the number of hundreds to give back, as needed.
            	hundreds = (changeBack / 100 );
            	changeBack = (changeBack % 100);
            	// condition: if value of hundreds not equal to Zero
            	// then output is generated, otherwise skip to
            	// next statement.
            		if (hundreds != 0){
            			cout << hundreds <<" $100 bill(s)\n";
            			//cout << changeBack << endl; //testing purposes
            		}

            	// outputs the number of fifties to give back, as needed.
            	fifties  = (changeBack / 50 );
            	changeBack = (changeBack % 50);
            	// condition: if value of fifties not equal to Zero
            	// then output is generated, otherwise skip to
            	// next statement.
            		if (fifties != 0){
                 		cout << fifties <<" $50 bill(s)\n";
            	  		//cout << changeBack<< endl; //testing purposes
            		}

            	// outputs the number of twenties to give back, as needed.
            	twenties  = (changeBack / 20 );
            	changeBack = (changeBack % 20);
            	// condition: if value of twenties not equal to Zero
            	// then output is generated, otherwise skip to
            	// next statement.
            	  	if (twenties != 0){
                 		cout << twenties <<" $20 bill(s)\n";
            	  		//cout << changeBack<< endl; //testing purposes
           			}

            	// outputs the number of tens to give back, as needed.
            	tens  = (changeBack / 10 );
            	changeBack = (changeBack % 10);
            	// condition: if value of tens not equal to Zero
            	// then output is generated, otherwise skip to
            	// next statement.
            		if (tens != 0){
                 		cout << tens <<" $10 bill(s)\n";
            			//cout << changeBack<< endl; //testing purposes
            		}

            	// outputs the number of fives to give back, as needed.
            	fives  = (changeBack / 5 );
            	changeBack = (changeBack % 5);
            	// condition: if value of fives not equal to Zero
            	// then output is generated, otherwise skip to
            	// next statement.
            		if (fives != 0){
               		cout << fives <<" $5 bill(s)\n";
            			//cout << changeBack<< endl; //testing purposes
            		}

            	// outputs the number of ones to give back, as needed.
            	ones  = (changeBack / 1 );
            	changeBack = (changeBack % 1);
            	// condition: if value of ones not equal to Zero
            	// then output is generated, otherwise skip to
            	// next statement.
            		if (ones != 0){
                  	cout << ones <<" $1 bill(s)\n";
            			//cout << changeBack<< endl; //testing purposes
            		}

            	// prompt: Thanking user for eating at joe's.
            	cout << endl;
            	cout << "Thanks for eating at JOE'S. Please come back soon!";
           		cout << endl;

      	}
         else{

               // prompt: Thanking user for eating at joe's.
         		cout << endl;
            	cout << "Thanks for eating at JOE'S. Please come back soon!";
           		cout << endl;

         }

      }
   	else{

      // prompt: user did not give enough money.
      cout << "\nYou did not give enough money. I have to make\n";
      cout << "a living, too. Go fish.";
      cout << endl;

      }

   }
   else{

   // prompt: Thanking user for stopping by.
   cout << "\nThanks for coming to JOE'S. Please come back soon!";

   }

   return 0;

}