#include <conio.h>
#include "a:list.h"

int menu(void);
void pause(void);

main()
{  List list;
   ItemType item;
   int i, n, choice;

   CreateList(&list);
   do
   {  choice = menu();
      
      switch(choice)
      {
       //creates a list
       case 1 : clrscr();
	       printf("Enter the number of nodes you wish to add in the list: ");
	       scanf("%d" , &n);
	       for(i=1 ; i <= n ; i++)
	       {
	           clrscr();
	           printf("Enter next item: ");
		   scanf("%d", &item.key);
                   if (!FullList())
		      Insert(item, &list);
		}
                pause();
		break;

       //inserts a node into the list	       
       case 2 : clrscr();
	        printf("Enter item for the node: " );
		scanf("%d", &item.key);
		if (!FullList())
		    Insert(item, &list);
		pause();
	        break;

       //prints the nodes in the list			       
       case 3 : clrscr();
		Traverse(&list);
		pause();
	        break;

       //seach for a node and display an appropriate message			       
       case 4 : clrscr();
                printf("you need to implement this yourself");
		pause();
		break;

       //deletes a node if it exists
       case 5 : clrscr();
                printf("you need to implement this yourself");
		pause();
		break;

       //exit
       case 6 : ClearList(&list);
		
     } 
   } while (choice != 6);

   return 0;
 }


  int menu(void)
  { int choice, stat;
    do
    {
      clrscr();
      printf("\n\n\n\t\t1. Create a list\n");
      printf("\t\t2. Insert new node into list\n");
      printf("\t\t3. Display the list\n");
      printf("\t\t4. Search for an item in the list\n");
      printf("\t\t5. Delete an item from list\n");
      printf("\t\t6. Exit\n\n");
      printf("\t\tPlease, enter your choice: ");
      stat=scanf("%d", &choice);
     } while(stat==0 || choice < 1 || choice > 6);
    return choice;
  }

  void pause(void)
  {
    printf("\nPress any key to continue...");
    getch() ;
  }