#ifndef CONTROLLER_CONTROLLER_H
#define CONTROLLER_CONTROLLER_H

#include <uuid/uuid.h>
#include <stdint.h>
#include <lmdb.h>

#include <config.h>
#include <models/relay.h>

/**
 * @brief Information about this controller
 */
typedef struct controller
{
    /**
     * @brief A unique UUID for this controller
     */
    uuid_t uuid;
    /**
     * @brief The name of this controller
     *
     * Includes a \0 terminator.
     */
    char name[CONTROLLER_NAME_LENGTH + 1];
    /**
     * @brief The command port the controller was bound to
     */
    uint16_t command_port;
    /**
     * @brief The discovery port the controller receives broadcasts on
     */
    uint16_t discovery_port;
    /**
     * @brief Amount of relays available to this controller
     */
    uint8_t relay_count;
    relay **relays;

} controller;

/**
 * @brief Key to save controller information in database
 */
typedef enum controller_db_key
{
    KEY_META_UUID = 0,
    KEY_META_NAME = 1,
    KEY_META_COMMAND_PORT = 2,
    KEY_META_DISCOVERY_PORT = 3,
    KEY_META_RELAY_COUNT = 4,
    KEY_META_RELAYS = 5,
} controller_db_key;

/**
 * @brief Create a new instance of controller
 *
 * This should not fail. The instance will be created with malloc and genric default values
 *
 * @return A new instance of #controller
 */
controller*
controller_create(void);


/**
 * @brief Load a controller for database or create a new one
 *
 * Will return NULL when transaction can't start.
 *
 * @param mdb_env An opened MDB_env to load from
 *
 * @return A loaded or new instance of controller or NULL on database error
 */
controller*
controller_load(MDB_env *mdb_env);

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


/**
 * @brief Debug an instance of #controller
 *
 * Will use #LOG_DEBUG to log. So log will be depending on #LOG_LEVEL
 *
 * @param cntrlr #controller to debug
 */
void
controller_debug(controller *cntrlr);

#endif //CONTROLLER_CONTROLLER_H