#include<stdio.h>
#include<conio.h>
#include<stdlib.h>

struct menu
{
       int id;
       char name[20];
       char make[20];
       int numserve;
       float price;
};

void addMenu();
void displayAll();

int counter=1;
int choice1,choice2,choice3;
int main()
{



             main:
             system("cls");
             printf("\t    =======================Toms Restaurant=======================\n");
             printf("1 - Add Menu\n");
             printf("2 - Update Menu\n");
             printf("3 - Display All\n");
             printf("4 - Order Menu\n");
             printf("5 - Total Sales\n");
             printf("6 - Exit\n");

             printf("Please input a number to select: \n\n");
             scanf("%d",&choice1);

             switch(choice1)
             {
                           case 1: addMenu();
                                   goto main; // function
                                   break;
                           case 2: goto main; //function
                                   system("cls");
                                   break;
                           case 3: displayAll(); //function
                                   system("pause");
                                   break;
                           case 4: goto menu;
                                   system("cls");
                                   break;
                           case 5: goto main;
                                   system("cls");
                                   break;
                           case 0: exit(0);
                                   break;
                           default: goto main;
                                    system("cls");

             }

             menu:
             system("cls");
             printf("1 - Select Menu\n");
             printf("2 - Best Seller\n");
             printf("3 - Back\n\n");
             printf("Please input a number to select:");
             scanf("%d",&choice2);

             switch(choice2)
             {
                            case 1: goto select;
                                    system("cls");
                                    break;
                            case 2: goto main;
                                    break;
                            case 3: goto main;
                                    break;
             }

             select:
             system("cls");
             printf("1 - Appetizers\n");
             printf("2 - Entrees\n");
             printf("3 - Dessert\n");
             printf("4 - Beverage\n");
             printf("5 - Back\n\n");
             printf("Please input a number to select:");
             scanf("%d",&choice3);

             switch(choice3)
             {
                            case 1: goto select;
                                    system("cls");
                                    break;
                            case 2: goto select;
                                    system("cls");
                                    break;
                            case 3: goto select;
                                    system("cls");
                                    break;
                            case 4: goto select;
                                    system("cls");
                                    break;
                            case 5: goto menu;
                                    system("cls");
                                    break;
                            default: system("cls");
                                     goto select;
                                     break;
             }
             getch();
}

void addMenu()
{
 system("cls");
    FILE *fp;
    struct menu menus;
    int numofentrees;
    int i;
    fp=fopen("storage.dat","ab");
    if(fp == NULL)
          printf("The file does not exist!");
     else
     {
        printf("Number of Menu Added: ");
        scanf("%d",&numofentrees);
        if(numofentrees > 30)
        {
         printf("Insufficient storage (Max: 30)\n");
         system("pause");
        }
        else if(numofentrees > 0)
        {

             while(numofentrees > 0)
             {

                printf("\nID #: %d",counter++);
                fflush(stdin);
                printf("\nEnter Menu Name: ");
                scanf("%[^\n]s",&menus.name);
                fflush(stdin);
                printf("Enter what the menu made of (pork,beef,chicken): ");
                fflush(stdin);
                scanf("%[^\n]s",&menus.make);
                printf("Number of Servings: ");
                fflush(stdin);
                scanf("%d",&menus.numserve);
                fflush(stdin);
                printf("Price: ");
                scanf("%f",&menus.price);
                fflush(stdin);
                fwrite(&menus, 1, sizeof(menus), fp);
                numofentrees--;

             }
             fclose(fp);
        }
    }

}

void displayAll()
{
 system("cls");
       FILE *fp;
       struct menu menus;
       fp = fopen("storage.dat","rb+");
       if(fp == NULL)
       {
          printf("The file does not exist!");
       }
       else
       {
          printf("The file is successfully openned!\n\n");
       }
     printf("%-5s%-15s%-15s%-15s%-15s\n", "ID", "NAME", "INGREDIENTS", "# OF SERVINGS", "PRICE");

     while(1)
     {
          fread(&menus, 1, sizeof(menus), fp);
          if(feof(fp))
               break;
          printf("%-5d%-15s%-15s%-17d%-15d\n", counter, menus.name, menus.make, menus.numserve, menus.price);
     }
     fclose(fp);
 }