#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <float.h>
typedef struct
  {
    char fname [15] ;
    char sname [35];
    int age ;
    char category [2];
    int number;
    float time;
}
competitor_details;

//Global Variables

FILE *compfile;
competitor_details comp;
int choice=0;

//Declare Functions

void menu (void);
void entercompetitordetails(void);
void producecompetitordetails(void);
void enterracetimes(void);
void produceracereport(void);

int main(int argc, char *argv[])
{
    menu();
  system("PAUSE");
  return 0;
  }


void menu()
{

  while (choice  !=9)
  {
  system("CLS");
  printf("                 +++++++++++++++++++++++++++++++++++++++++++\n");
  printf("                 +             Competitor details          +\n");
  printf("                 +                                         +\n");
  printf("                 +          [1] Enter competitor details   +\n");
  printf("                 +          [2] Produce competitor details +\n");
  printf("                 +          [3] Enter race times           +\n");
  printf("                 +          [4] Produce race report        +\n");
  printf("                 +          [9] Exit                       +\n");
  printf("                 +                                         +\n");
  printf("                 +++++++++++++++++++++++++++++++++++++++++++\n");
  printf("                                Enter Choice "                 );
  scanf("%i",&choice);
  printf("\n");

  switch (choice){
         case 1:entercompetitordetails();
         break;
         case 2:producecompetitordetails();
         break;
         case 3:enterracetimes();
         break;
         case 4:produceracereport();
         break;
         case 9:printf("exit\n");
         break;
         default : printf("It is one of the undefined values\n");
         system("PAUSE");
		 break;
         }
  }
}
void entercompetitordetails(void)

{

system ("cls");

compfile=fopen("compfile.bin", "ab");

if (compfile ==0)
{printf ("An error occurred opening file.\n");
}






       printf ("Please enter competitor number or 0 to quit\n");
       scanf ("%i", &comp.number);

      while (comp.number != 0.)
        {
        printf(" Please enter first name  \n");
        scanf ("%s", &comp.fname);
        printf(" Please enter surname\n");
        scanf ("%s", &comp.sname);
        printf(" Please enter age \n");
        scanf ("%i", &comp.age);
        printf(" Please enter category (Juvenile J, standard S, Expert E} \n");
        scanf ("%s", &comp.category);

        fwrite(&comp, sizeof(comp),1,compfile);

        printf ("Please enter competitor number or 0 to quit\n");
        scanf ("%i", &comp.number);

        }




 fclose(compfile);

  system("PAUSE");


}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void producecompetitordetails(void)


{
   compfile = fopen("compfile.bin", "rb"); /* Open File */

   if (compfile == 0)
      {
      printf ("An error occurred while opening the file.\a\n");
      printf ("Please choose option 1.\n\n");
      system("PAUSE");
      }/*End of if statment*/
   else
   {
        system ("cls");  /* Clear the Screen */

        printf ("              Competitor Details\n\n");
        printf ("First Name\tSurname\tAge\tCategory\t Number\n");
        while (!feof(compfile))
              {
              fread(&comp, sizeof(comp),1,compfile);
              if(!feof(compfile))
              printf ("%-20s\t%-20s\t%-2i\t%-3s\t%-3i\n", comp.fname, comp.sname, comp.age, comp.category, comp.number);
              }/*End of while*/

        fclose (compfile);/*Close the file*/
        system("PAUSE");
        }}
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void enterracetimes(void)
{

int search_no; //local variable

system ("cls");



     compfile = fopen("compfile.bin","ab+");

     if (compfile == 0)
     {
                     printf ("File not opened\a\n");
                     printf ("Please choose option 1.\n\n ");
                     system("PAUSE");
                     }
     else
     {
          printf ("Please enter competitor Number? ");
          scanf("%i", &search_no);

          while (!feof(compfile))
          {
          fread(&comp, sizeof(comp),1,compfile);

          if  (search_no == comp.number)
          {
          printf("Competitor is %s %s\n", comp.fname, comp.sname);
          printf ("Please enter competitors race time\n");
          scanf ("%f", &comp.time);
          fwrite (&comp, sizeof(comp),1,compfile);
          break;
          }


          if (search_no!=comp.number)
          printf("competitor number is not Valid");

    }

    fclose(compfile);
    system("PAUSE");}
}

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

void produceracereport(void)

 {

compfile=fopen("compfile.bin", "rb");

 if (compfile == 0)
      {
      printf ("An error occurred while opening the file.\a\n");
      printf ("Please choose option 1.\n\n");
      system("PAUSE");
      }/*End of if statment*/
   else
   {
        system ("cls");  /* Clear the Screen */

        printf ("              LIST OF COMPETITOR RACE TIMES   ``\n\n");
        printf ("COMPETITOR No.\tFIRST NAME   \tSURNAME      \tTIME\n\n");
        while (!feof(compfile))
              {
              fread(&comp, sizeof(comp),1,compfile);
              if(!feof(compfile))
              printf ("%i       \t%-15s\t %-10s\t %f\n", comp.number,comp.fname,comp.sname,comp.time);

              }/*End of while*/
              }
        fclose (compfile);/*Close the file*/

  system("PAUSE");

}

        while (!feof(compfile))
              {
              fread(&comp, sizeof(comp),1,compfile);
              if(!feof(compfile))
              printf ("%i       \t%-15s\t %-10s\t %f\n", comp.number,comp.fname,comp.sname,comp.time);

              }/*End of while*/
              }