#include "save_layout.h"
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc,char **argv) {
  if(argc!=3) return 2;
  FactorioSaveLayout result;
  memset(&result,0xa5,sizeof(result));
  FactorioSaveLayout before=result;
  int status;
  size_t needed=0;
  if(!strcmp(argv[1],"zip")) status=factorio_save_map_header(argv[2],&result);
  else if(!strcmp(argv[1],"bytes")) {
    FILE *file=fopen(argv[2],"rb"); if(!file) return 2;
    uint8_t *bytes=malloc(1024*1024); if(!bytes) return 2;
    size_t count=fread(bytes,1,1024*1024,file); fclose(file);
    status=factorio_save_layout_bytes(bytes,count,&result,&needed); free(bytes);
  } else return 2;
  if(status && memcmp(&before,&result,sizeof(result))) return 3;
  printf("{\"status\":%d,\"needed\":%zu",status,needed);
  if(!status) printf(",\"header_offset\":%zu,\"next_offset\":%zu,\"mod_count\":%u,"
    "\"tick_fields_hex\":[\"%016" PRIx64 "\",\"%016" PRIx64 "\",\"%016" PRIx64 "\"]",
    result.header_offset,result.next_offset,result.mod_count,
    result.header.tick_fields[0],result.header.tick_fields[1],result.header.tick_fields[2]);
  puts("}");
  return status ? 1 : 0;
}