#ifndef NM_CONFIG_H
#define NM_CONFIG_H
#ifdef __cplusplus
extern "C" {
#endif

#include <stdbool.h>
#include "menu.h"

#ifndef NM_CONFIG_DIR
#define NM_CONFIG_DIR "/mnt/onboard/.adds/nm"
#endif

#ifndef NM_CONFIG_MAX_MENU_ITEMS_PER_MENU
#define NM_CONFIG_MAX_MENU_ITEMS_PER_MENU 50
#endif

typedef struct nm_config_t nm_config_t;

typedef struct nm_config_file_t nm_config_file_t;

// nm_config_parse lists the configuration files in /mnt/onboard/.adds/nm. An
// error is returned if there are errors reading the dir.
nm_config_file_t *nm_config_files(char **err_out);

// nm_config_files_update checks if the configuration files are up to date and
// updates them, returning true, if not. If *files is NULL, it is equivalent to
// doing `*files = nm_config_files(err_out)`. If an error occurs, the pointer is
// left untouched and false is returned along with the error. Warning: if the
// files have changed, the pointer passed to files will become invalid (it gets
// replaced).
bool nm_config_files_update(nm_config_file_t **files, char **err_out);

// nm_config_files_free frees the list of configuration files.
void nm_config_files_free(nm_config_file_t *files);

// nm_config_parse parses the configuration files. An error is returned if there
// are syntax errors, file access errors, or invalid action names for menu_item.
nm_config_t *nm_config_parse(nm_config_file_t *files, char **err_out);

// nm_config_generate runs all generators synchronously and sequentially. Any
// previously generated items are automatically removed if updates are required.
// If the config was modified, true is returned.
bool nm_config_generate(nm_config_t *cfg, bool force_update);

// nm_config_get_menu gets a malloc'd array of pointers to the menu items
// defined in the config. These pointers will be valid until nm_config_free is
// called.
nm_menu_item_t **nm_config_get_menu(nm_config_t *cfg, size_t *n_out);

// nm_config_free frees all allocated memory.
void nm_config_free(nm_config_t *cfg);

#ifdef __cplusplus
}
#endif
#endif