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

typedef struct Golfer {
   char fName[80];
   char lName[80];
   int handicap;
} Golfer;

void printRoster(Golfer players[], int numGolfers);

int findBestGolfer(Golfer players[], int numGolfers);

void sortByHandicap(Golfer golfers[], int numGolfers);

int main()
{
   printf("Hello World!! \n");

   Golfer g;
   strcpy(g.fName, "Roger");
   strcpy(g.lName, "Priebe");
   g.handicap = 17;


   printf("%s, %s - %d\n", g.lName, g.fName, g.handicap);

   const int MAX_PLAYERS = 50;

   Golfer golfers[MAX_PLAYERS];

   FILE *fptr;
   fptr = fopen("golfers.dat", "r");

   if (fptr == NULL) {
      printf("open error...\n");
      exit(-42);
   }
   else
      printf("success!\n");

   char fName[80];
   char lName[80];
   int handicap;

   int numGolfers = 0;

   while (fscanf(fptr, "%s %s %d",fName, lName, &handicap) != EOF) {
//printf("%s %s %d\n", fName, lName, handicap);
      golfers[numGolfers].handicap = handicap;
      strcpy(golfers[numGolfers].fName, fName);
      strcpy(golfers[numGolfers].lName, lName);

      numGolfers++;      
   }

   printRoster(golfers, numGolfers);

   printf("the best golfer is %s\n", golfers[findBestGolfer(golfers, numGolfers)].fName);

   sortByHandicap(golfers, numGolfers);

   printRoster(golfers, numGolfers);
 
   return 0;
}


void printRoster(Golfer golfers[], int numGolfers) {
   for (int i = 0; i < numGolfers; i++) {
      printf("%s, %s - %d\n", golfers[i].lName, golfers[i].fName, golfers[i].handicap);
   }
}

int findBestGolfer(Golfer golfers[], int numGolfers) {
  int best = 0;
  
  for (int i = 1; i < numGolfers; i++) {
      if (golfers[best].handicap > golfers[i].handicap) {
         best = i;
printf("best is %d\n", best);
      }
  }

  return best;
}


void sortByHandicap(Golfer golfers[], int numGolfers) {
   for (int i = 0; i < numGolfers - 1; i++) {
      int best = i;

      for (int j = i + 1; j < numGolfers; j++) {
         if (golfers[j].handicap < golfers[best].handicap) {
            best = j;
         }
      }

      Golfer g = golfers[i];
      golfers[i] = golfers[best];
      golfers[best] = g;
    }
}