controller-legacy/include/models/relay.h

#ifndef CONTROLLER_RELAY_H
#define CONTROLLER_RELAY_H

#include <stdint.h>
#include <time.h>
#include <lmdb.h>

#include <constants.h>
#include <models/schedule.h>

typedef struct
{
    uint8_t number;
    char name[MAX_NAME_LENGTH + 1];
    schedule_t *schedule;
} relay_t;

/**
 * @brief Key to save relay information in database
 */
typedef enum
{
    DB_KEY_RELAY_NAME = 0,
    DB_KEY_RELAY_SCHEDULE_ID = 1,
    DB_KEY_RELAY_SCHEDULE_PERIODS = 2,
} db_key_relay_e;

relay_t*
relay_create(uint8_t number);

void
relay_set_name(relay_t *relay, const char *name);

/**
 * @brief Load a relay for database or create a new one
 *
 * @param mdb_env An opened MDB_env to load from
 *
 * @return A loaded or new instance of relay
 */
relay_t*
relay_load(MDB_env *mdb_env, uint8_t num);

/**
 * @brief Save a relay to the database
 *
 * @param relay Instance of a relay
 * @param mdb_env Already created MDB_env
 *
 * @return Indicator to show success (0) or failure (!0)
 */
int
relay_save(relay_t *relay, MDB_env *mdb_env);

int
relay_is_active(relay_t *relay, time_t timestamp_now);

void
relay_free(relay_t *relay);

void
relay_debug(relay_t *relay);

#endif //CONTROLLER_RELAY_H