#define _XOPEN_SOURCE 500
#include <stdlib.h>
#include <extlib.h>
#include <ftw.h>
#include <stdio.h>
#include <string.h>
#include "config.h"

struct compile_cmd_t **ccmds;
int ccmds_size = 0;
int parse_config(const char *fpath, const struct stat *sb,
		 int typeflag, struct FTW *ftwbuf)
{
  if (!S_ISREG (sb->st_mode))
    return 0;

  struct compile_cmd_t *ccmd = malloc (sizeof (struct compile_cmd_t));
  struct compile_cmd_t **ccmds_tmp = realloc (ccmds, sizeof (ccmds)+sizeof (struct compile_cmd_t));
  if (ccmds_tmp)
    ccmds = ccmds_tmp;

  FILE *cfg = fopen (fpath, "r");

  int filled = 0;
  while (filled == 0) {
    char *line = strdup ("");
    int tmp_char;
    while ((tmp_char = fgetc (cfg))) {
      char *line_tmp = realloc (line, strlen (line) + 8);
      if (line_tmp) line = line_tmp;
      sprintf (line, "%s%c", line, tmp_char);
      if (tmp_char == '\n' || tmp_char == '\0')
	break;
    }
    printf ("%s", line);
    free (line);
  }
  fclose (cfg);
  ccmds_tmp[ccmds_size] = ccmd;
  ccmds_size += 1;
  return 0;
}

void get_commands() {
  //  struct compile_cmd_t **ccmds;
  ccmds = malloc (sizeof (struct compile_cmd_t));
  char *home = getenv ("HOME");
  if (!home) {
    puts ("warn: HOME not found. Unable to read home configuration files.");
  }
  char **paths = malloc (sizeof (char*)*4);
  paths[0] = strdup ("/etc/runc.d");
  paths[1] = strdup ("/usr/share/runc");
  if (home) {
    paths[2] = malloc (strlen (home)+strlen ("/.local/share/runc")+1);
    sprintf (paths[2], "%s/.local/share/runc", home);
  }
  for (int i = 0; i < 3; i++) {
    if (!paths[i]) break;
    int err = nftw (paths[i], parse_config, 10, FTW_DEPTH|FTW_MOUNT|FTW_PHYS);
    free (paths[i]);
  }
  free (paths);

  for (int i = 0; i < ccmds_size; i++) {
    puts (ccmds[i]->cmd);
    free (ccmds[i]->cmd);
    free (ccmds[i]);
  }
  free (ccmds);
}