#include "stdafx.h"
#include <windows.h>
#include <string.h>
#include <stdlib.h>
#include <conio.h>
#include <stdio.h>
#define size 20
 
typedef struct node {
    char name;
	char number;
	char id;
	char adress;
    } NODE;
void print_menu();
void add_mem(FILE *f);
void print_list(FILE *f);
void search_mem(FILE *f);
void delete_mem(FILE *f);
int main()
{	
	FILE *f;
	char c=0;
	char *name = "xxx.x";
	f =fopen(name, "a+b");
    delete_mem(f);
	print_list(f);
	while (c!='5')
	{
	 system("cls");
     print_menu();
     flushall();
	 c=getch();
	 switch (c)
	 {
		case '1': {
              system("cls");	
			  add_mem(f);
			  getch();
		     }break;
		case '2':{
		   	system("cls");
		     search_mem(f);
			 getch();
		     }break; 
		case '3':{
	      
			delete_mem(f);
			getch();
		}break;
 		case '4':{
			print_list(f);
			getch();
		}break;
	 }
	}
	
         
	
}
void print_menu()
{
   printf ("Dor & Oded Phonebook\n");
   printf ("--------------------\n\n");
   printf ("(1) Add a new member\n");
   printf ("(2) Find a member\n");
   printf ("(3) Delete a member\n");
   printf ("(4) Show the phonebook\n");
   printf ("(5) Exit\n\n");
   flushall();
}
void add_mem(FILE *f)
{
	NODE *node = (NODE *)malloc(sizeof (NODE));
	node=NULL;
	node=(NODE *)malloc(sizeof(NODE));
	printf("Enter a name:\n");
	gets(node->name);
	printf("Enter an adress:\n");
	gets(node->adress);
	printf("Enter an ID:\n");
	gets(node->id);
	printf("Enter a number:\n");
	gets(node->number);
	fseek( f, 0L, SEEK_END );
	fwrite (node,sizeof(NODE),1,f);
	rewind(f);
}
void print_list(FILE *f)
{
	NODE *node = (NODE *)malloc(sizeof (NODE));
	printf ("Name             Adress             ID             Number\n");
	printf ("-----------------------------------------------------------------------\n\n");
	while(fread (node,sizeof(NODE),1,f))
	{
		printf("%s\t\t ",node->name);
		printf("%s\t\t    ",node->adress);
		printf("%s\t\t",node->id);
		printf("%s\t\t",node->number);
		printf("\n");
	}
	rewind(f);
}

void search_mem(FILE *f)
{
	int q,n=0;
	char c="0";
	NODE node;
	printf ("(1) By name\n(2) By number\n");
	printf ("(3) By Adress\n(4) By ID\n");
	scanf ("%d",&q);
	printf("Enter the detail:\n");
	flushall ();
	gets (c);
    while(fread (&node,sizeof(NODE),1,f))
	      {
           if (q==1)
		            {
				     if (!strcmp(c,node.name))
					   {
		                printf ("Member has been found\n");
					    fseek (f,-(sizeof(node)),SEEK_CUR);
						n++;
						break;
					   }
		             }
		   else if (q==2)
		   		    {
						if (!strcmp(c,node.adress))
						{
		                printf ("Member has been found\n");
					    fseek (f,-(sizeof(node)),SEEK_CUR);
						n++;
						break;
						}
		            }         
		   else if (q==3)
		            {
						if (!strcmp(c,node.id))
						{
		                printf ("Member has been found\n");
					    fseek (f,-(sizeof(node)),SEEK_CUR);
						n++;
						break;
						}
		            }
		   else if (q==4)
		            {
						if (!strcmp(c,node.number))
						{
		                printf ("Member has been found\n");
					    fseek (f,-(sizeof(node)),SEEK_CUR);
						n++;
						break;
						}
		            }
		   	}
						if (n==0)
			            printf("The member does'n exist\n");
	     
}

void delete_mem(FILE *f)
{
    NODE temp;		
	fseek(f,-(sizeof(temp)),SEEK_END);
	fread(&temp,sizeof(temp),1,f);
	rewind(f);
	search_mem(f);
	fwrite(&temp,sizeof(NODE),1,f);
	fclose(f);
	HANDLE h=CreateFile(TEXT("xxx.x"),GENERIC_WRITE | GENERIC_READ,0,0,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,0); 
	SetFilePointer(h,-1*sizeof(temp),NULL,FILE_END);
	SetEndOfFile(h);
	CloseHandle(h);
	fopen("xxx.x","r+b");
	
}