/*
 plz help m ....getting problem in braces in void main and want to add do while loop in main cases....
plz help....
*/
//Hospital Management System
#include<stdio.h>
#include<conio.h>
#include<fstream.h>
#include<stdlib.h>
#include<dos.h>
#include<string.h>
#include<iomanip.h>
#include<process.h>
#include<ctype.h>
#include <iostream.h>
//class to deal with patient data

int ch_main;
class patient
    {
    private:
        int   patient_no;
        char  patient_time[8];
        char  patient_name[30];
        char  patient_address[60];
        char  patient_room_type[10];
        char  patient_phone[15];
        char  patient_date[11];
    protected :
        int  patient_room_number;
    public :
        patient() : patient_no(0),patient_room_number(0)
            {
            patient_name[0] = 0;
            patient_phone[0] = 0;
            patient_address[0] = 0;
            patient_date[0] = 0;
            patient_room_type[0] = 0;
            patient_date[0] = 0;
            patient_time[0] = 0;
            }
    char getdata();
    void showdata();
    int pno(){return patient_no;}
    };

//class to deal with staff data
class staff
    {
    private:
        int    staff_no;
        float  staff_salary;
        char   staff_name[30];
        char   staff_phone[15];
        char   staff_mobile[15];
        char   staff_address[50];
        char   staff_position[20];
        char   staff_date_joining[11];
    public:
        staff() :   staff_no(0),staff_salary(0.0)
            {
            staff_name[0] = 0;
            staff_phone[0] = 0;
            staff_mobile[0] = 0;
            staff_date_joining[0] = 0;
            staff_address[0] = 0;
            staff_position[0] = 0;
            }
        char staff_getdata();
        void staff_showdata();
        int sno() { return staff_no;}
    };

class room : protected patient
    {


    };

char patient :: getdata()
     {
     clrscr();
     char cRet = 0;
     textcolor(RED);
     cprintf("CHECK IN A PATIENT++");
     gotoxy(5,5);
     cout<<"Please enter patient number        : ";
     cin>>patient_no;
     cin.ignore();
     gotoxy(5,9);
     cout<<"Please enter patient full name       : ";
     cin.getline(patient_name, sizeof(patient_name));
     gotoxy(5,13);
     cout<<"Please enter patient phone number    : ";
     cin.getline(patient_phone, sizeof(patient_phone));
     gotoxy(5,17);
     cout<<"Please enter patient address(r)    : ";
     cin.getline(patient_address, sizeof(patient_address));
     gotoxy(5,21);
     cout<<"Please enter patient check in time : ";
     cin.getline(patient_time, sizeof(patient_time));
     gotoxy(5,25);
     cout<<"Please enter date                  : ";
     cin.getline(patient_date, sizeof(patient_date));
     gotoxy(5,29);
     cout<<"Please enter patient room number     : ";
     cin>>patient_room_number;
     cin.ignore();
     gotoxy(5,33);
     cout<<"Please enter room type 'AC/NAC/ICU': ";
     cin.getline(patient_room_type, sizeof(patient_room_type));
     do {
        gotoxy(5,37);
        cout<<"Continue? (y/n) ";
        cRet = getch();
        }while(tolower(cRet)!='y'&&tolower(cRet) != 'n');
     return cRet;
     }

void patient :: showdata()
     {
     clrscr();
     textcolor(RED);
     cprintf("Patient Details\n\n");
     gotoxy(5,5);
     cout<<"Patient Number           :    "<<patient_no;
     gotoxy(5,9);
     cout<<"Patient Name             :    "<<patient_name;
     gotoxy(5,13);
     cout<<"Patient Phone Number     :    "<<patient_phone;
     gotoxy(5,17);
     cout<<"Patient Address(r)       :    "<<patient_address;
     gotoxy(5,21);
     cout<<"Patient check in time    :    "<<patient_time;
     gotoxy(5,25);
     cout<<"Patient check in date    :    "<<patient_date;
     gotoxy(5,29);
     cout<<"Patient room             :    "<<patient_room_number;
     gotoxy(5,33);
     cout<<"Patient room type        :    "<<patient_room_type;
     gotoxy(5,37);
     cout<<"Continue? (y/n)       :    ";
     }

char staff :: staff_getdata()
     {
     clrscr();
     cout<<"Staff Data";
     gotoxy(5,5);
     cout<<"Please enter employee number             : ";
     cin>>staff_no;
     cin.ignore();
     gotoxy(5,9);
     cout<<"Please enter employee name           : ";
     cin.getline(staff_name, sizeof(staff_name));
     gotoxy(5,13);
     cout<<"Please enter employee phone number(r) :";
     cin.getline(staff_phone, sizeof(staff_phone));
     gotoxy(5,17);
     cout<<"Please enter employee mobile         : ";
     cin.getline(staff_mobile, sizeof(staff_mobile));
     gotoxy(5,21);
     cout<<"Please enter employee address(r)     : ";
     cin.getline(staff_address,sizeof(staff_address));
     gotoxy(5,25);
     cout<<"Please enter date of joining         : ";
     cin.getline(staff_date_joining, sizeof(staff_date_joining));
     gotoxy(5,29);
     cout<<"Please enter employee position       : ";
     cin.getline(staff_position, sizeof(staff_position));
     gotoxy(5,33);
     cout<<"Please enter employee salary         : ";
     cin>>staff_salary;
     cin.ignore();
     char cRet = 0;
     do {
         cRet = 0;
         gotoxy(5,37);
         cout<<"Continue? (y/n)                          : ";
         cRet = tolower(getch());
         } while(cRet!='n'&&cRet!='y');
     return cRet;
     }

void message(const char *szPerson, const char *szNumber, int iNo)
    {
    cout<<"There is no "
            << szPerson
            << " with "
            << szNumber
            << " "
            << iNo
            << " in our Database";
    }

void staff :: staff_showdata()
    {
    clrscr();
    gotoxy(5,5);
    cout<<"Employee number            :"<<staff_no;
    gotoxy(5,9);
    cout<<"Employee name              :"<<staff_name;
    gotoxy(5,13);
    cout<<"Employee phone number(r)   :"<<staff_phone;
    gotoxy(5,17);
    cout<<"Employee mobile number     :"<<staff_mobile;
    gotoxy(5,21);
    cout<<"Employee address           :"<<staff_address;
    gotoxy(5,25);
    cout<<"Employee date of joining   :"<<staff_date_joining;
    gotoxy(5,29);
    cout<<"Employee postion           :"<<staff_position;
    gotoxy(5,33);
    cout<<"Employee salary            :"<<staff_salary;
    }

void write_patient()
 {
 patient p;
 fstream f1;
 f1.open("patient.dat",ios::app|ios::binary);
 char ch;
 do{
        ch = p.getdata();
        f1.write((char*)&p,sizeof(p));
        }while(ch=='y');

 f1.close();
 }

void write_staff()
    {
    staff s;
    fstream f2;
    f2.open("staff.dat",ios::app|ios::binary);
    char ch_staff;
    do {
         ch_staff = s.staff_getdata();
         f2.write((char*)&s,sizeof(s));
        }while(ch_staff=='y');
    }

void read_patient()
    {
    char cInput = 0;
    patient p;
    fstream f1;
    f1.open("patient.dat",ios::in|ios::binary);
    do {
         f1.read((char*)&p,sizeof(p));
         p.showdata();
         cInput = getch();
         switch(cInput)
             {
             case 'y':
             case 'Y':
                break;
             case 'n':
             case 'N':
                break;
             default: cout << "Please enter n or y" << endl;
                break;
             }
        }while(!(f1.eof()||toupper(cInput)=='N'));
    f1.close();
    }

void read_staff()
    {
    staff s;
    fstream f2;
    char cInput = 0;
    f2.open("staff.dat",ios::in|ios::binary);
    if (!f2.bad()){
         do {
                f2.read((char*)&s,sizeof(s));
                s.staff_showdata();
                cInput = getch();
                switch(cInput){
                     case 'y':
                     case 'Y':
                         break;
                     case 'n':
                     case 'N':
                         break;
                     default: cout << "Please enter n or y" << endl;
                         break;
                        }
             } while(!f2.eof());
            f2.close();
            }
        }

void search_patient()
    {
    clrscr();
    patient p;
    int patient2_no,flag=0;
    fstream f1;
    f1.open("patient.dat",ios::in|ios::binary);
    gotoxy(10,15);
    cout<<"Please enter patient number you want which you want to search ";
    cin>>patient2_no;
    while(!f1.eof()){
        f1.read((char*)&p,sizeof(p));
        if(p.pno()==patient2_no) {
            p.showdata();
            flag=1;
            break;
            }
        }
    f1.close();
    if(!flag){
        clrscr();
        gotoxy(10,19);
        message("patient", "patient #", patient2_no);
        gotoxy(10,23);
        cout <<"Any key to continue!";
        }
    getch();
    }

void search_staff()
    {
    clrscr();
    staff s;
    int staff2_no,flag_staff=0;
    fstream f2;
    f2.open("staff.dat",ios::in|ios::binary);
    gotoxy(10,15);
    cout<<"Please enter employee number you want to search ";
    cin>>staff2_no;
    cin.ignore();
    while(!f2.eof()){
        f2.read((char*)&s,sizeof(s));
        if(s.sno()==staff2_no){
            s.staff_showdata();
            flag_staff=1;
            }
        }
    f2.close();
    if(!flag_staff){
        clrscr();
        gotoxy(10,19);
        message("staff", "employee #", staff2_no);
        gotoxy(10,23);
        cout << "Any Key to continue! " ;
        }
    getch();
    }

void del_patient()
    {
    clrscr();
    patient p;
    fstream f1,f11;
    f11.open("temp.dat",ios::out|ios::binary);
    f1.open("patient.dat",ios::in|ios::binary);

    int patient2_no,flag=0;
    gotoxy(10,15);
    cout<<"Please enter patient number which you want to delete ";
    cin>>patient2_no;
    while(!f1.eof())
        {
        f1.read((char*)&p,sizeof(p));
        if(p.pno()!=patient2_no){
            f11.write((char*)&p,sizeof(p));
            }
         else{
            flag=1;
            }
        }
    f1.close();
    f11.close();
    if(!flag){
        remove("temp.dat");
        gotoxy(10,19);
        message("patient", "Record #", patient2_no);
        }
    else {
        remove("patient.dat");
        rename("temp.dat","patient.dat");
        }
    gotoxy(10,23);
    cout << "Any key to continue!";
    getch();
    }

void del_staff()
    {               clrscr();
    staff s;
    fstream f2,f22;
    f22.open("temp_staff.dat",ios::out|ios::binary);
    f2.open("staff.dat",ios::in|ios::binary);
    int staff2_no,flag_staff=0;
    gotoxy(20,15);
    cout<<"Please enter staff number which you want to delete ";
    cin>>staff2_no;
    while(!f2.eof()){
        f2.read((char*)&s,sizeof(s));
        if(s.sno()!=staff2_no){
            f22.write((char*)&s,sizeof(s));
            }
        else{
            flag_staff=1;
            }
        }
    f2.close();
    f22.close();
    if(!flag_staff) {
        remove("temp_staff.dat");
        gotoxy(20,19);
        message("staff", "employee", staff2_no);
        }
    else {
        remove("staff.dat");
        rename("temp_staff.dat","staff.dat");
        }
    gotoxy(20,23);
    cout << "Any Key to continue! " ;
    getch();
    }

void update_patient()
    {
    patient p;
    fstream f1;
    int patient2_no = 0,
    record_patient=0,
    flag = 0;
    clrscr();
    f1.open("patient.dat",ios::in|ios::out|ios::binary);
    gotoxy(10,15);
    cout<<"Please enter patient number which you want to modify";
    cin>>patient2_no;
    while(!f1.eof()){
        f1.read((char*)&p,sizeof(p));
        ++record_patient;
        if(p.pno()==patient2_no) {
            flag = 1;
            //p.showdata();
            p.getdata();
            f1.seekp((record_patient-1)*sizeof(patient));
            f1.write((char*)&p,sizeof(p));
            break;
            }
        }
    f1.close();
    if(!flag){
        gotoxy(10,19);
        message("patient", "Record #", patient2_no);
        gotoxy(10,23);
        cout<<"Any Key to continue!";
        }
    getch();
    }

void update_staff()
    {
    staff   s;
    fstream f2;
    int staff2_no,record_staff=0,flag_staff=0;
    clrscr();
    f2.open("staff.dat",ios::in|ios::out|ios::binary);
    gotoxy(10,15);
    cout<<"Please enter staff number which you want to modify";
    cin>>staff2_no;
    while(!f2.eof())
        {
        f2.read((char*)&s,sizeof(s));
        ++record_staff;
        if(s.sno()==staff2_no){
            flag_staff=1;
            gotoxy(20,2);
            cout<<"Please enter new data";
            //s.staff_showdata();
            s.staff_getdata();
            f2.seekp((record_staff-1)*sizeof(patient));
            f2.write((char*)&s,sizeof(s));
            break;
            }
        }
    f2.close();
    if(!flag_staff){
        gotoxy(10,19);
        message("staff", "employee #", staff2_no);
        gotoxy(10,23);
        cout<<"Any Key to continue!";
        }
    getch();
    }

char main_choice()
     {
    clrscr();
     char ch_main = 0;
     gotoxy(20,7);
     cout<<"1.Information related to patient";
     gotoxy(20,9);
     cout<<"2.Information related to employee";
     gotoxy(20,11);
     cout <<"3.Quit program";
     do {
         gotoxy(20,14);
         cout<<"Please enter your choice (1/2/3) ";
         ch_main = getch();
         }while (ch_main <'1' || ch_main > '3');
     return ch_main;
     }

void patient_menu()
    {
    clrscr();
    int ch_patient;
    gotoxy(20,7);
    cout<<"1.Add a patient record";
    gotoxy(20,9);
    cout<<"2.Display a patient record";
    gotoxy(20,11);
    cout<<"3.Search a patient record";
    gotoxy(20,13);
    cout<<"4.Delete a patient record";
    gotoxy(20,15);
    cout<<"5.Modify a patient record";
    gotoxy(20,17);
    cout<<"6.Exit";
    gotoxy(20,19);
    cout<<"7.Back to Main Menu";
    gotoxy(20,23);
    cout<<"Please enter your choice ";
    cin>>ch_patient;
    switch(ch_patient){
        case 1:
            write_patient();
            break;
        case 2:
            read_patient();
            break;
        case 3:
            search_patient();
            break;
        case 4:
            del_patient();
            break;
        case 5:
            update_patient();
            break;
        case 6:
            exit(0);
            break;
        case 7:
            main_choice();
            break;
            }
    }

void staff_menu()
    {
    int ch_staff;
    clrscr();
    gotoxy(20,7);
    cout<<"1.Add a employee record";
    gotoxy(20,9);
    cout<<"2.Display a employee record";
    gotoxy(20,11);
    cout<<"3.Search a employee record";
    gotoxy(20,13);
    cout<<"4.Delete a employee record";
    gotoxy(20,15);
    cout<<"5.Modify a employee record";
    gotoxy(20,17);
    cout<<"6.Back to Main Menu";
    gotoxy(20,19);
    cout<<"7.Exit";
    gotoxy(20,23);
    cout<<"Please enter your choice ";
    cin>>ch_staff;
    switch(ch_staff)
         {
         case 1:
             write_staff();
             break;
         case 2:
             read_staff();
             break;
         case 3:
             search_staff();
             break;
         case 4:
             del_staff();
             break;
         case 5:
             update_staff();
             break;
         case 6:
             main_choice();
             break;
         case 7:
             exit(0);
             }
     }

int main()
    { //closed
    char ch_main = 0;

    clrscr();
    char ch;
    do {
        ch_main = 0;
        ch_main = main_choice();
        switch(ch_main) {
            case '1':
                patient_menu();
                break;
            case '2':
                staff_menu();
                break;
            case '3':
                break;
         default:
             cout << "Please enter 1, 2, or 3" << endl;
             break;
             }//switch1 closed
        }while(ch_main != '3');
    return EXIT_SUCCESS;
    }