#include<iostream.h>
#include<conio.h>
#include<process.h>
class all
{
private:
  struct address
  {
   int house;
   char street[30];
   char city[30];
   char state[30];
   char country[30];
  };
  struct age
  {
   int day;
   int month;
   int year;
  };
  struct patient_info
  {
   char name[50];
   address AD1;   //nested structure implemented
   age A1;        //nested structure inplemented
   int martial_status;
   int reg_no;
   int bld_group;
   int sex;
  }PI[100];
  int task;
protected:
  void enter_patient_info();
  void show_patient_detail();
public:
  void software_detail();
  void tasks();
  char answer;
  char answer1;
  char ch;
  int serial;
};

class date
{
private:
    int date;
   int month;
   int year;
public:
   void enter_date();
   void show_date();
};

class dob
{
private:
  struct dob1
  {
   int date;
   int month;
   int year;
   int rem;
  }DOB11[100];
public:
   void enter_date();
   void show_date();
};

int i=0;
int rem;
int count;
int regis;
int attempt;
int temp;
int show_count=0;

all A1;           //object declared
date D1;          //object declared
dob DOB1;         //object declared

void main()
{
count=0;
cout<<"Welcome to..."<<"
";
cout<<"

            ***HOSPITAL MANAGEMENT SOFTWARE***"<<"
";
cout<<"                   By Mustafizur Rohman       "<<"
";
D1.enter_date();
A1.tasks();
}

void all::tasks()
{
attempt=0;
D1.show_date();
cout<<"

            ***HOSPITAL MANAGEMENT SOFTWARE***"<<"
";
cout<<"                   By Mustafizur Rohman       "<<"
";
cout<<"
               **Hospital Management Tasks**"<<"
";
cout<<"               *****************************"<<"
";
cout<<"


Please  select a task to do...."<<"
";
cout<<"

1. Enter a new patient information ."<<"
";
cout<<"2. View detail of existing patient ."<<"
";
cout<<"3. View detail about the program ."<<"
";
cout<<"4. Exit from the program ."<<"
";
//other function remain
cout<<"

Enter your task serail :"<<"
";
cin>>task;
switch(task)
{
  case 1:{
          A1.enter_patient_info();
          break;
         }
  case 2:{
          A1.show_patient_detail();
          break;
         }
  case 3:{
          A1.software_detail();
          break;
         }
  case 4:{
          clrscr();
          cout<<"



    Thank You for trying this program !!!"<<"
";
          cout<<"    This is the end of program...."<<"
";
          cout<<"

    Press any key to exit....."<<"
";
          getch();
          exit(0);
          break;
         }
default:{
          clrscr();
          cout<<"
Invalid task serial ."<<"
";
          cout<<"Press any key to continue...."<<"
";
          getch();
          clrscr();
          A1.tasks();
         }
}
}

void all::enter_patient_info()
{
clrscr();
answer='y';
if(count==0)
{
  serial=1;
}
else
{
  i=serial;
}
for(i=serial;answer=='y'||answer=='Y';i++)
{
  PI[i].reg_no=i;
  temp=serial;
  cout<<"

     ***ENTERING INFORMATION FOR PATIENT SERIAL NUMBER "<<i<<"***"<<"
";
  cin.get(ch);
  cout<<"
Registration Number : "<<PI[i].reg_no<<"

";
  cout<<"Enter the name of patient :"<<"
";
  clreol();
  cin.getline(PI[i].name,50);
  cout<<"Sex (1-Male 2-Female) :"<<"
";
  clreol();
  cin>>PI[i].sex;
  while(PI[i].sex!=1&&PI[i].sex!=2)
  {
   cout<<"Invalid input for sex of patient!!!"<<"
";
   cout<<"Sex :"<<"
";
   clreol();
   cin>>PI[i].sex;
  }
  cout<<"
***ENTERING ADDRESS**"<<"

";
  cout<<"House number :"<<"
";
  clreol();
  cin>>PI[i].AD1.house;
  while(PI[i].AD1.house<=0)
  {
   cout<<"Invalid input for house number ."<<"
";
   cout<<"Again enter the house number ."<<"
";
   clreol();
   cin>>PI[i].AD1.house;
  }
  cin.get(ch);
  cout<<"Street :"<<"
";
  clreol();
  cin.getline(PI[i].AD1.street,30);
  cout<<"City :"<<"
";
  clreol();
  cin.getline(PI[i].AD1.city,30);
  cout<<"State :"<<"
";
  clreol();
  cin.getline(PI[i].AD1.state,30);
  cout<<"Country :"<<"
";
  clreol();
  cin.getline(PI[i].AD1.country,30);
  DOB1.enter_date();
  //to calculate age
  cin.get(ch);
  cout<<"Martial status(1-Married,2-Not Married ):"<<"
";
  if(count!=0)
  {
   clreol();
  }
  cin>>PI[i].martial_status;
  while(PI[i].martial_status<1||PI[i].martial_status>2)
  {
   cout<<"Invalid input for martial status ."<<"
";
   cout<<"Enter a valid martial status :"<<"
";
   clreol();
   cin>>PI[i].martial_status;
  }
  cin.get(ch);
  if(count!=0)
  {
   clreol();
  }
  clreol();
  cout<<"Blood group :"<<"
";
  clreol();
  cout<<"1. A+ "<<"
";
  clreol();
  cout<<"2. A- "<<"
";
  clreol();
  cout<<"3. B+ "<<"
";
  clreol();
  cout<<"4. B- "<<"
";
  clreol();
  cout<<"5. AB+ "<<"
";
  clreol();
  cout<<"6. AB- "<<"
";
  clreol();
  cout<<"7. O+ "<<"
";
  clreol();
  cout<<"8. O- "<<"
";
  clreol();
  cout<<"Enter :"<<"
";
  clreol();
  cin>>PI[i].bld_group;
  switch(PI[i].bld_group)
  {
   case 1:
   case 2:
   case 3:
   case 4:
   case 5:
   case 6:
   case 7:
   case 8:{
           break;
          }
  default:{

while(PI[i].bld_group!=1&&PI[i].bld_group!=2&&PI[i].bld_group!=3&&

PI[i].bld_group!=4&&PI[i].bld_group!=5&&PI[i].bld_group!=6&&
                 PI[i].bld_group!=7&&PI[i].bld_group!=8)
           {
            clreol();
            cout<<"Invalid input !"<<"
";
            cout<<"Blood Group :"<<"
";
            clreol();
            cin>>PI[i].bld_group;
           }
           break;
          }
  }
  cin.get(ch);
  cout<<"
Want to enter information for another patient ? "<<"
";
  clreol();
  cin>>answer;
  count++;
  serial++;
}
clrscr();
A1.tasks();
}

void dob::enter_date()
{
clreol();
cout<<"

Date of birth"<<"
";
clreol();
cout<<"
Year :";
clreol();
clreol();
cin>>DOB11[temp].year;
if(DOB11[temp].year<=0||DOB11[temp].year>10000)
{
  do
  {
   clreol();
   cout<<"Invalid input for year !"<<"
";
   cout<<"Please enter the year correctly :"<<"
";
   cin>>DOB11[temp].year;
  }while(DOB11[temp].year<0||DOB11[temp].year>10000);
}
clreol();
cout<<"Month :";
clreol();
cin>>DOB11[temp].month;
if(DOB11[temp].month<=0||DOB11[temp].month>12)
{
  do
  {
   clreol();
   cout<<"Invalid input for month !"<<"
";
   cout<<"Again enter the month :"<<"
";
   clreol();
   if(count!=0)
   {
    clreol();
   }
   cin>>DOB11[temp].month;
  }while(DOB11[temp].month<0||DOB11[temp].month>12);
}
cout<<"Date :";
clreol();
switch(DOB11[temp].month)
{
  case 1:
  case 3:
  case 5:
  case 7:
  case 8:
  case 10:
  case 12:{
           cin>>DOB11[temp].date;
           while(DOB11[temp].date<1||DOB11[temp].date>31)
           {
            clreol();
            cout<<"Invalid date !"<<"
";
            cout<<"Again enter the date :"<<"
";
            clreol();
            cin>>DOB11[temp].date;
           }
            break;
          }
  case 2:{
          cin>>DOB11[temp].date;
          if(DOB11[temp].year%4==0)
          {
           while(DOB11[temp].date<0||DOB11[temp].date>29)
//for leap year
           {
            clreol();
            cout<<"Invalid date !"<<"
";
            cout<<"Again enter the date :"<<"
";
            clreol();
            cin>>DOB11[temp].date;
           }
          }
          else
          {
           while(DOB11[temp].date<0||DOB11[temp].date>28)
//for non-leap year
           {
            clreol();
            cout<<"Invalid date !"<<"
";
            cout<<"Again enter the date :"<<"
";
            clreol();
            cin>>DOB11[temp].date;
           }
          }
          break;
         }
default:{
          cin>>DOB11[temp].date;
          while(DOB11[temp].date<1||DOB11[temp].date>30)
          {
           clreol();
           cout<<"Invalid date !"<<"
";
           cout<<"Again enter the date :"<<"
";
           clreol();
           cin>>DOB11[temp].date;
          }
          break;
         }
}        //end of switch
clreol();
}

void date::enter_date()
{
cout<<"

First of all I need the current date ..."<<"
";
cout<<"
Year :";
cin>>year;
if(year<=0||year>10000)
{
  do
  {
   cout<<"Invalid input for year !"<<"
";
   cout<<"Please enter the year correctly :"<<"
";
   cin>>year;
  }while(year<0||year>10000);
}
cout<<"Month :";
cin>>month;
if(month<=0||month>12)
{
  do
  {
   cout<<"Invalid input for month !"<<"
";
   cout<<"Again enter the month :"<<"
";
   cin>>month;
  }while(month<0||month>12);
}
cout<<"Date :";
switch(month)
{
  case 1:
  case 3:
  case 5:
  case 7:
  case 8:
  case 10:
  case 12:{
           cin>>date;
           while(date<1||date>31)
           {
            cout<<"Invalid date !"<<"
";
            cout<<"Again enter the date :"<<"
";
            cin>>date;
           }
           break;
          }
  case 2:{
          cin>>date;
          if(year%4==0)
          {
           while(date<0||date>29) //for leap year
           {
            cout<<"Invalid date !"<<"
";
            cout<<"Again enter the date :"<<"
";
            cin>>date;
           }
          }
          else
          {
           while(date<0||date>28) //for non-leap year
           {
            cout<<"Invalid date !"<<"
";
            cout<<"Again enter the date :"<<"
";
            cin>>date;
           }
          }
          break;
         }
default:{
          cin>>date;
          while(date<1||date>30)
          {
           cout<<"Invalid date !"<<"
";
           cout<<"Again enter the date :"<<"
";
           cin>>date;
          }
          break;
         }
}        //end of switch
}

void date::show_date()  //remove the goto ststements in this function
{
clrscr();
cout<<"Hello....
It's ";
cout<<date;
rem=date%10;
switch(date)
{
  case 11:
  case 12:
  case 13:
  case 14:
  case 15:
  case 16:
  case 17:
  case 18:
  case 19:
  case 20:{
           cout<<"th ";
           goto over;
          }
}
switch(rem)
{
  case 1:{
          cout<<"st ";
          break;
         }
  case 2:{
          cout<<"nd ";
          break;
         }
  case 3:{
          cout<<"rd ";
          break;
         }
default:{
          cout<<"th ";
          break;
         }
}
over:
switch(month)
{
  case 1:{
          cout<<"January , ";
          break;
         }
  case 2:{
          cout<<"February , ";
          break;
         }
  case 3:{
          cout<<"March , ";
          break;
         }
  case 4:{
          cout<<"April , ";
          break;
         }
  case 5:{
          cout<<"May , ";
          break;
         }
  case 6:{
          cout<<"June , ";
          break;
         }
  case 7:{
          cout<<"July , ";
          break;
         }
  case 8:{
          cout<<"August , ";
          break;
         }
  case 9:{
          cout<<"September , ";
          break;
         }
case 10:{
          cout<<"October , ";
          break;
         }

case 11:{
          cout<<"November , ";
          break;
         }
case 12:{
          cout<<"December , ";
          break;
         }
}
cout<<year<<"
";
}

void all::show_patient_detail()
{
do
{
  clrscr();
  cout<<"

Enter registration number :"<<"
";
  clreol();
  cin>>regis;
  cin.get(ch);
  show_count++;
  if(regis>0&&regis<serial)
  {
   clreol();
   cout<<"
      ***INFORMATION FOR PATIENT REGISTRATION NUMBER"<<regis<<"***

";
   clreol();
   cout<<"Name           : "<<PI[regis].name<<"
";
   clreol();
   cout<<"Sex            : ";
   clreol();
   if(PI[regis].sex==1)
   {
    cout<<"Male "<<"
";
    clreol();
   }
   if(PI[regis].sex==2)
   {
    cout<<"Female "<<"
";
    clreol();
   }
   cout<<"Blood Group    : ";
   clreol();
   switch(PI[regis].bld_group)
   {
    case 1:{
            clreol();
            cout<<"A+
";
            break;
           }
    case 2:{
            clreol();
            cout<<"A-
";
            break;
           }
    case 3:{
            clreol();
            cout<<"B+
";
            break;
           }
    case 4:{
            clreol();
            cout<<"B-
";
            break;
           }
    case 5:{
            clreol();
            cout<<"AB+
";
            break;
           }
    case 6:{
            clreol();
            cout<<"AB-
";
            break;
           }
    case 7:{
            clreol();
            cout<<"O+
";
            break;
           }
    case 8:{
            clreol();
            cout<<"O-
";
            break;
           }
   }
   clreol();
   cout<<"Date of birth  : ";
   clreol();
   DOB1.show_date();
   cout<<"Martial Status : ";
   clreol();
   if(PI[i].martial_status==1)
   {
    cout<<"Married "<<"
";
    clreol();
   }
   else
   {
    cout<<"Not married "<<"
";
    clreol();
   }
   clreol();
   cout<<"
          **ADDRESS**"<<"
";
   clreol();
   cout<<"
House no.      : "<<PI[regis].AD1.house;
   clreol();
   cout<<"
Street         : "<<PI[regis].AD1.street;
   clreol();
   cout<<"
City           : "<<PI[regis].AD1.city;
   clreol();
   cout<<"
State          : "<<PI[regis].AD1.state;
   clreol();
   cout<<"
Country        : "<<PI[regis].AD1.country;
   clreol();
  }
  else
  {
   if(regis==1)
   {
    cout<<"
Database is empty !!!"<<"
";
    cout<<"Press any key to exit to main task menu..."<<"
";
    getch();
    clrscr();
    A1.tasks();
   }
   attempt++;
   if(attempt==3)
   {
    cout<<"
You have entered wrong registration number 3 times
."<<"
";
    cout<<"Access Denied!!! "<<"
";
    cout<<"Please try again later. "<<"
";
    cout<<"Press any key to exit to main task menu..."<<"
";
    getch();
    clrscr();
    A1.tasks();
   }
   clreol();
   cout<<"

Sorry, the registration number is invalid ."<<"
";
   cout<<"Press any key to continue...."<<"
";
   getch();
   clreol();
   A1.show_patient_detail();
  }
  clreol();
  cout<<"

Want to see information of another patient :"<<"
";
  clreol();
  cin>>answer1;
}while(answer1=='y'||answer1=='Y');
clreol();
clrscr();
A1.tasks();
}

void dob::show_date()
{
cout<<DOB11[regis].date;
rem=DOB11[regis].date%10;
switch(DOB11[regis].date)
{
  case 11:
  case 12:
  case 13:
  case 14:
  case 15:
  case 16:
  case 17:
  case 18:
  case 19:
  case 20:{
           cout<<"th ";
           goto over;
          }
}
switch(rem)
{
  case 1:{
          cout<<"st ";
          break;
         }
  case 2:{
          cout<<"nd ";
          break;
         }
  case 3:{
          cout<<"rd ";
          break;
         }
default:{
          cout<<"th ";
          break;
         }
}
over:
switch(DOB11[regis].month)
{
  case 1:{
          cout<<"January , ";
          break;
         }
  case 2:{
          cout<<"February , ";
          break;
         }
  case 3:{
          cout<<"March , ";
          break;
         }
  case 4:{
          cout<<"April , ";
          break;
         }
  case 5:{
          cout<<"May , ";
          break;
         }
  case 6:{
          cout<<"June , ";
          break;
         }
  case 7:{
          cout<<"July , ";
          break;
         }
  case 8:{
          cout<<"August , ";
          break;
         }
  case 9:{
          cout<<"September , ";
          break;
         }
case 10:{
          cout<<"October , ";
          break;
         }

case 11:{
          cout<<"November , ";
          break;
         }
case 12:{
          cout<<"December , ";
          break;
         }
}
cout<<DOB11[regis].year<<"
";
}

void all::software_detail()
{
clrscr();
cout<<"


             ***SOFTWARE DETAILS***
";
cout<<"

    Developer                : Mustafizur Rohman "<<"
";
cout<<"    Programming Language     : C++ "<<"
";
cout<<"    Aim                      : Simulation of the software used in Hospital"<<"
";
cout<<"
    Hope you like it..."<<"
";
cout<<"

    Send your comments to : mustafizur_04@sify.com ."<<"
";
cout<<"

    Thank You for trying this program. "<<"
";
cout<<"


Press any key to return to the main task menu......."<<"
";
getch();
A1.tasks();
}