#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "common.h"
#include "structs.h"
#include "dfs.h"
#include "random_heuristic.h"
#include "nem_ull.h"

int main(int argc, char * argv[]){
  struct data * data;
  struct front_item * front = NULL;

  if(argc!=4){
    printf("Wrong number of arguments!\n");
    printf("Example usage: %s algorithm sort_method data_file\n",argv[0]);
    return 0;
  }

  data = input(argv[3]);

  /* Seed Random Generator */
  struct timeval tv;
  gettimeofday(&tv,NULL);
  srand(tv.tv_sec + tv.tv_usec);

  /* Sort data */
  if(strcmp(argv[2], "random") == 0) {
    qsort(data->items, data->N, sizeof(struct item), cmp_items_random);
  } else if(strcmp(argv[2], "ratio") == 0) {
    qsort(data->items, data->N, sizeof(struct item), cmp_items_ratio);
  }

  clock_t t = clock();
  /* Choose algorithm */
  if(strcmp(argv[1], "nem_ull") == 0) {
    front = nem_ull(data);
  } else if(strcmp(argv[1], "dfs") == 0) {
    front = dfs(data);
  } else if(strcmp(argv[1], "random_heuristic") == 0) {
    front = random_heuristic(data);
  }

  t = clock() - t;
  printf("%f,%d\n",((float)t)/CLOCKS_PER_SEC,len_front(front));

  print_front(front);

  free_front(front);
  free_data(data);

  return 0;
}