#ifndef LLARP_CONFIG_H_
#define LLARP_CONFIG_H_

/**
 * config.h
 *
 * library configuration utilties
 */

struct llarp_config;

/// allocate config
void
llarp_new_config(struct llarp_config **conf);

/// deallocate config
void
llarp_free_config(struct llarp_config **conf);

/// @brief return -1 on fail otherwiwse 0
int
llarp_load_config(struct llarp_config *conf, const char *fname);

/// config iterator configuration
struct llarp_config_iterator
{
  /// a customizable pointer to pass data to iteration functor
  void *user;
  /// set by llarp_config_iter
  struct llarp_config *conf;
  /// visit (self, section, key, value)
  void (*visit)(struct llarp_config_iterator *, const char *, const char *,
                const char *);
};

/// iterator over "conf" and call visit functor defined in "iter"
void
llarp_config_iter(struct llarp_config *conf,
                  struct llarp_config_iterator *iter);

/// ensure configuration exists
/// populate with defaults if it does not exist
/// return if this succeeded
bool
llarp_ensure_config(const char *fname);

#endif