Phone_book_2

//=========================================================
// File Name    : headr.h
// Project Name : Phone book
// Version      : v0.0.2
// Copyright    : you are free to copy , share and use this code
// Description  : Phone book program, using POD types , and Binary file
// Compiler     : Gcc MingW
// IDE          : Code::blocks
//===========================================================
//i do not comment my code ...it  was HARD to write ..so it is HARD to read...
//current status: data entry , search name  working ; delete contact not working , display part malfunctioning....
/*
main.cpp
#include"headr.h"
int main()
{

    gui();
    return 0;
}
*/
#include<iostream>
#include<stdio.h>
#include<cstdlib>
#include<process.h>
#include<string.h>
#include<fstream>
using namespace std;
char nul[1]={""};
char na[10]={"NA"};
class Personal_Info
{
public:
    char name[100];
    char mobile[15];
    char email[15];
public:
    Personal_Info()
    {
        strcpy(name,"NA");
        strcpy(mobile,"NA");
        strcpy(email,"NA");
    }
    void take_name();
    void take_mobile();
    void take_email();
    void show_full_info();
    void validate_mobile();
    void validate_name();
    void validate_email();
    int check(char field[]);
};
int Personal_Info::check(char field[])
{
    return strcmp(name,field);
}
void Personal_Info::validate_name()
{
    if(strcmp(name,nul)==0)
       {
            cout<<"\n..NAME NOT GIVEN...\n";
            cin.ignore();
            strcpy(name,na);
            take_name();
       }
}
void Personal_Info::validate_mobile()
{
    if(strcmp(mobile,nul)==0)
    {
        cout<<"\n..MOBILE NO NOT GIVEN>>\n";
        strcpy(mobile,na);
        take_mobile();
    }
}
void Personal_Info::validate_email()
{
    if(strcmp(email,nul)==0)
    {
        cout<<"\n..EMAIL NOT GIVEN..\n";
        strcpy(email,nul);
    }
}
void Personal_Info::show_full_info()
{
    cout<<"\n***** DISPLAYING DETALIS ****\nS";
    cout<<"\nName      :"<<name;
    cout<<"\nMobile    :"<<mobile;
    cout<<"\nEmail     :"<<email;
}
void Personal_Info::take_name()
{
    cout<<"\nEnter the name ->";
    cin.ignore();
    gets(name);
    validate_name();
}
void Personal_Info::take_mobile()
{
    cout<<"\nEnter the mobile number ->";
    cin.ignore();
    gets(mobile);
    validate_mobile();
}
void Personal_Info::take_email()
{
    cout<<"\nEnter the E-mail  ->";
    cin.ignore();
    gets(email);
    validate_email();
}
class Phonebook
{
    private:
         void save_info();
    protected:
        Personal_Info contact;
    public:
        void search_name();
        void delete_data();
        void show_all();
        void get_data();
};
void Phonebook::save_info()
{
    ofstream filout;
    filout.open("data.bin",ios::out|ios::app|ios::ate);
    int ch;

    if(!filout)
    {
        cout<<"\n cannot open file \n";
    }
    cout<<"\n do you want to save this info (1. yes / 2. no) ?\n";
    cin>>ch;
    if(ch==1)
    {
        filout.write((char*)&contact,sizeof(contact));
    }
    else if(ch==2)
        cout<<"\n info discarded \n";
    filout.close();
}
void Phonebook::get_data()
{
    contact.take_name();
    contact.take_mobile();
    contact.take_email();
    contact.show_full_info();
    save_info();
}
void Phonebook::delete_data()
{

}
void Phonebook::show_all()
{
    ifstream filout;
    filout.open("data.bin");
    filout.seekg(0,ios::beg);
    cout<<"\n******* Displaying details ******\n";
    if(!filout.good())
        cout<<"\n*** FILE IS DOES NOT EXIST ***\n";
    if(filout.good())
    {
        while(!filout.eof())
        {
            filout.read((char*)&contact,sizeof(contact));
            contact.show_full_info();
        }
    }
}
void Phonebook::search_name()
{
    int token;
    char field[100];
    cout<<"Enter the first name of the person you wanna search ?? \n";
    cin.ignore();
    gets(field);
    cout<<"person to be searched is "<<field;
    cin.get();
    token=0;
    ifstream readfil;
    readfil.open("data.bin");
    if(!readfil.good())
        cout<<"\n*** FILE IS DOES NOT EXIST ***\n";
    if(readfil.good())
    {
        while(!readfil.eof())
        {
            readfil.read((char*)&contact,sizeof(contact));
            if((contact.check(field))==1)
            {
                token=1;
                contact.show_full_info();
            }
        }
        if(token==0)
        {
            cout<<"\n*** PERSON NOT FOUND ***\n";

        }
    }
}
void gui()
{
    int ch;
    Phonebook p;
    while(1)
        {
            cout<<"*********PHONE BOOK**********\n";
            cout<<"| 1) Add new record         |\n";
            cout<<"| 2) Display All Records    |\n";
            cout<<"| 3) Search Person Name     |\n";
            cout<<"| 4) Delete record          |\n";
            cout<<"| 5) Exit                   |\n";
            cout<<"*****************************\n";
            cout<<"Enter your desired operation : ";
            cin>>ch;
            switch(ch)
                {
                    case 1:
                        p.get_data();
                        break;
                    case 2:
                        p.show_all();
                        break;
                    case 3:
                        p.search_name();
                        break;
                    case 4:break;
                    case 5:exit(1);
                    default:cout<<"\n Enter a valid choice";
                }
        }
}