//Program     : functionsCoding1.cpp
//Author      : Justin Senseman
//Due         : November 15, 2005
//Description : This program converts military time to civilian time


#include<iostream>
#include<iomanip>
using namespace std;



#define ADULT .25          //daily late fee for adult books
#define CHILDREN .05       //daily late fee for childerns books
#define VIDEO_DVD 2        //daily late fee for video of dvd




char getMedia();
int  getDays();
double getTotal(char media,int days);
void pintTotal(int counter,double grandTotal);


int main ()
{

   int counter=0, // count how many tmes user repeats the loop
       days;      // stores number of inputed days 

   double total, // stores total
          grandTotal=0; //stores running total
          

   char media,  //stores type of media
        answer; //stores users input for reapting the loop

   do
   {
      media= getMedia();
      days= getDays();
      total=getTotal(media,days);
    
      grandTotal+=total;
      counter++;
      
      cout<<"\nDo you have additional overdue items (y)es or(n)o? : ";
      cin>>answer;
   }
   while (answer=='y'||answer=='Y');

   pintTotal(counter,grandTotal);
   
   return 0 ; 

}

// Function : getMedia
// Purpose  : Obtain & validate users choice for media
// input    : none
// output   : choice - users input for type of media
char getMedia()
{
   char choice;
   cout<<"what type of media are you returning ?\n";
   cout<<"(A)dult\n(C)hildren\n(V)ideo or DVD:";
   cin>>choice;
   while(choice!='A'&&choice!='C'&&choice!='V'&&choice!='a'&&choice!='c'&&choice!='v')
   {
      cout<<"Error you entered an invalid choice\n";
      cout<<"what type of media are you returning ?\n";
      cout<<"(A)dult\n(C)hildren\n(V)ideo or DVD:";
      cin>>choice;
   }
   return choice;
}
// Function : getDays
// Purpose  : obtain & validate users input for number of days media is late
// input    : none
// output   : days - number of days media is late

int getDays()
{
   int days; //stores number of days media is late
   cout<<"\nEnter number of days media is late :";
   cin>> days;
   while(days<1)
   {
      cout<<"\n\nERROR: You enterede an invalid number of days";
      cout<<"\n\nEnter number of days media is late :";
      cin>> days;
   }

   return days;
}
// Function : getTotal
// Purpose  : calculates total
// input    : media - users inputed media
//            days  - users inputed days
// output   : total - users current total
double getTotal(char media,int days)
{
   double total;
   switch (media)
   {
      case 'a':
      case 'A':
         if(days>20)
            total=5;
         else
            total=days*ADULT;
         break;
      case 'c':
      case 'C':
         if(days>20)
            total=1;
         else
            total=days*CHILDREN;
         break;
      case 'v':
      case 'V':
         if(days>5)
            total=10;
         else
            total=days*VIDEO_DVD;
         break;
    }

    return total;

}

// Function : printTotal
// Purpose  : Print the total on the screen
// input    : counter    - total counted items
//            grandtotal - running total
// output   : none
void pintTotal(int counter,double grandTotal)
{
   cout<<"\n\nTotal number of items returned is "<<counter;
   cout<<"\nYour grand total is "<<setprecision(2)<<fixed<<grandTotal<<'\n';
}