#ifndef FACILITIES_DENM_H
#define FACILITIES_DENM_H

#include <stdint.h>
#include <denmv2/DENM.h>
#include <pthread.h>
#include <stdbool.h>

enum EVENT_STATE {
    EVENT_ACTIVE,
    EVENT_CANCELLED,
    EVENT_NEGATED
};

typedef struct event {
    DENM_t *denm;
    uint32_t station_id;
    uint32_t sn;
    uint64_t detection_time;
    uint64_t reference_time;
    uint64_t expiration_time;
    uint8_t cause;
    uint8_t subcause;
    uint32_t latitude;
    uint32_t longitude;
    bool enabled;
    enum EVENT_STATE state;
} event_t;

typedef struct den {
    event_t ** events;
    uint32_t sn;
    uint16_t no_stored_events;
    uint16_t no_active_events;
    uint16_t no_cancelled_events;
    uint16_t no_negated_events;
    uint16_t no_max_events;
    pthread_mutex_t lock;
} den_t;

enum EVENT_CHECK_RESULT {
    EVENT_NEW,
    EVENT_INVALID,
    EVENT_PASSED,
    EVENT_CANCELLATION,
    EVENT_NEGATION,
    EVENT_UPDATE,
    EVENT_REPEATED,
    EVENT_NUMBER_EXCEEDED
};

/**
 * Evaluate a DENM event.
 * Does all the checks to a DENM and adds it to the database. *Don't* free the DENM struct after calling this function
 * @param den the DEN service struct
 * @param denm the DENM to evaluate
 * @return 0 if event OK, 1 if event NOK
 */
int event_manage(den_t *den, DENM_t *denm);

void* den_service(void *fc);

#endif