//---------------------------------------------------------------------------
//Jane Jakeman/31/12/05/A2T1TelephoneBox/Ass 2:Task 1
#pragma hdrstop
#pragma argsused
#include<iostream.h>
#include<iomanip.h>
#include<conio.h>
#include<time.h>

void delaytwo(int);                //edited time function

 void delaytwo(int secs)
 {
   int remaining,LastVal;
   time_t start;   //set up start and now to accept time values
   time_t now;
   start = time(NULL); //start holds No of seconds since 1st Jan 1970
   do{
       LastVal=remaining; // prevents printing every time loop
       now=time(NULL); // now holds the latest no of secs since 1 Jan 1970
       remaining=secs-(now-start); //No of secs of delay left
       gotoxy(5,5);   //format
       if(LastVal!=remaining) cout<<"Connecting...pls wait"<<endl;
     }while(now<start+secs); //go on until the delay is up
     gotoxy(5,6); //keeps countdown display on one line
 }

void delay(int);                //time countdown function provided by tutor

 void delay(int secs)
 {
   int remaining,LastVal;
   time_t start;   //set up start and now to accept time values
   time_t now;
   start = time(NULL); //start holds No of seconds since 1st Jan 1970
   do{
       LastVal=remaining; // prevents printing every time loop
       now=time(NULL); // now holds the latest no of secs since 1 Jan 1970
       remaining=secs-(now-start); //No of secs of delay left
       gotoxy(5,5);
       if(LastVal!=remaining) cout<<remaining<<"  : seconds remaining  "<<endl;
     }while(now<start+secs); //go on until the delay is up
     gotoxy(5,6); //keeps countdown display on one line
   cout<<secs<<" seconds time up "<<endl; //Time up message
 }

void main (void)
{
  char des = '+', ans;     //des=screen format design/ans=hold switch response
  int x, t=0, c=0, a[80], b;   //x=loop;n=?;t=nosecs;c=total;a=coins;b=loop
  int secs=0;                   //for time function
  char number[25];              //used to hold user input telephone number
   for(x=0;x<66;x++)            //loop prints screen design horizontally
      cout<<des;
      cout<<"\n";
   for(x=0;x<20;x++)            //prints screen design vertically
      cout<<des<<setw(65)<<des<<"\n";
   for(x=0;x<66;x++)
      cout<<des;
      gotoxy(5,5);              //places cursor in place
      textbackground(YELLOW);   //changes background colour
      cputs("Please wait...."); //use cputs/as background not accepted otherwise
   if (cin.get()=='\n')
      gotoxy(5,5);
      cout<<"Is call Local (L), Trunk (T), or International(I)";
switch(ans=cin.get())
{
   case'L':
      gotoxy(5,6);
      cout<<"You selected Local Call - charge : 10p for 20 secs\n" ;
    break;
   case'T':
      gotoxy(5,6);
      cout<<"You selected Trunk Call - charge : 10p for 10 secs\n";
    break;
   case'I':
      gotoxy(5,6);
      cout<<"You selected International Call - charge  : 10p for 4 secs\n";
    break;
   default:
      cout<<"Do not enter any coins.";
}
      gotoxy(5,7);
      cout<<"Enter coins : 5, 10, 20, 50, 100 (0 to end)\n";
   do
   {
      for(b=0;b<5;b++)    //start loop to input coins
       cout<<"     ";      //to format so that coins show
       cin>>(a[b]);         //input coins to array
       c=(a[b]+c);           //as coins are input, c = array added
    }while(a[b]!=0);          //end condition
       gotoxy(35,15);          //format
       cout<<"sum total is "<<c<<"p\n";       //total coins outpur
       getchar();                             //so that amount can be seen
        clrscr();                             //clear screen
       gotoxy(5,5);                           //format
       cout<<"Enter number to be dialled\n";  //reguest (dummy) input
       gotoxy(10,10);                         //format
       cin>>number[25];                       //to hold number
        clrscr();                             //clear screen
       gotoxy(5,5);                           //format
       cout<<"Now dialling";                  //Output now dialling
     {                                        //call function 'delaytwo'
     delaytwo(5);                             //with delay set to 5 secs
      }                                       //end of function 'delaytwo'
       gotoxy(5,2);                           //format
       cout<<"Now connected";                 //output at end of 10 sec delay
       t=0;                                   //set t to 0 to clear memory
      if (ans=='L')   //ans is result of switch
       t=(c/10)*20;    //calculation, pence input, divide by 10 to get 10p unit
      if (ans=='T')    //and then multiply by seconds allowed per choice.
       t=(c/10)*10;
      if (ans=='I')
       t=(c/10)*4;
     {
      delay(t);  //Set delay ('t' is integer to hold actual time allowance)
       }
        gotoxy(5,2);
        cout<<"Now disconnected";
        getchar();
}