/* *******************************************************
   * Author: Nikitas N. Karanikolas, Assistant Professor *
   * Creation Date: February 21, 2009                    *
   ******************************************************* */

#include <stdio.h>

#include "types.h"
#include "commonf.c"

main (int argc, char *argv[]) {
   personnel_rec e1;
   char tmp_str[snamesize];
   int i, k, howmany;
   FILE *fp;

   if (argc<2) {
      printf("You should provide the name of the file to be created.");
      exit(1);
   }

   fp=fopen(argv[1],"wb");
   if (fp==NULL) {
      printf("Can not open [%s] for writing data.", argv[1]);
      exit(2);
   }

   do {
      blank(&e1,sizeof(personnel_rec));
      printf("\nGive surname: ");
      gets(e1.sname);
      printf("[%s]\n",e1.sname);
      strcpy(tmp_str,e1.sname);
      upper(tmp_str);
      if (strcmp(tmp_str,"QUIT")==0) break;
      printf("\nGive first name: ");
      gets(e1.fname);
      printf("[%s]\n",e1.fname);
      printf("\nGive the speciality: ");
      gets(e1.speciality);
      printf("[%s]\n",e1.speciality);
      printf("\nGive \"year of birth\", \"year of employment\", \"salary\": ");
      scanf("%d %d %f", &e1.year_of_birth, &e1.year_of_employment, &e1.salary);
      gets(tmp_str); /* garbage collection */
      /* create a unique key for the employee */
      sprintf(e1.key, "%c%c%2d%2d", e1.sname[0], e1.fname[0], e1.year_of_birth % 100, e1.year_of_employment %100);
      if (e1.key[2]==' ') e1.key[2]='0'; /* convert "xy 5 9" to "xy05 9" */
      if (e1.key[4]==' ') e1.key[4]='0'; /* convert "xy05 9" to "xy0509" */
      upper(e1.key);  /* convert "xy0509" to "XY0509" */
      printf("the new employee is assigned the key [%s]\n",e1.key);
      howmany=fwrite(&e1,sizeof(personnel_rec),1,fp);
      /* printf("\nhowmany=%d\n", howmany); */
   } while (1);
   fclose(fp);
}