#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 {
    uint64_t id;
    DENM_t *denm;
    uint32_t station_id;
    uint32_t sn;
    uint64_t detection_time;
    uint64_t reference_time;
    uint64_t expiration_time;
    int32_t latitude;
    int32_t longitude;
    bool enabled;
    enum EVENT_STATE state;
} event_t;

typedef struct den {
    event_t ** events;
    uint32_t sn;
    uint16_t n_stored_events;
    uint16_t n_active_events;
    uint16_t n_cancelled_events;
    uint16_t n_negated_events;
    uint16_t n_max_events;
    uint32_t default_event_duration;
    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
};

typedef struct cc_ssp_bm {
    const char* cause_type;
    const int cause_code;
    const uint32_t bitmap_val;
} cc_ssp_bm_t;


/**
 * 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
 * @param id message intra ITS-S identitifier
 * @param ssp permissions
 * @return 0 if event OK, 1 if event NOK
 */
int event_manage(den_t* den, DENM_t* denm, int64_t* id, uint8_t* ssp, uint32_t ssp_len);

void* den_service(void* fc);

#endif