controller-legacy/models/relay.c

#include <stdlib.h>
#include <string.h>
#include <uuid/uuid.h>

#include <logger.h>
#include <helpers.h>
#include <models/relay.h>

relay_t*
relay_create(uint8_t number)
{
    relay_t *new_relay = malloc(sizeof(relay_t));

    new_relay->number = number;
    new_relay->name[0] = '\0';

    uuid_t off_id;
    memset(off_id, 0, sizeof(uuid_t));
    memcpy(off_id, "off", 3);

    for(int i = 0; i < 7; ++i)
    {
        new_relay->schedules[i] = schedule_create(off_id, i, 0, NULL);
    }

    return new_relay;
}

void
relay_set_name(relay_t *relay, const char *name)
{
    strncpy(relay->name, name, MAX_NAME_LENGTH);
    relay->name[MAX_NAME_LENGTH] = '\0';
}

int
relay_is_active(relay_t *relay, time_t timestamp_now)
{
    schedule_t *schedule = relay->schedules[helper_get_weekday(timestamp_now)];
    if(schedule->length == 0)
    {
        return 0;
    }

    // we don't need days. reduce to hours, minutes and seconds
    timestamp_now %= SECONDS_PER_DAY;
    // finally remove seconds
    timestamp_now /= SECONDS_PER_MINUTE;

    for(uint16_t i = 0; i < schedule->length; ++i)
    {
        if(period_includes_time(schedule->periods[i], timestamp_now))
        {
            return 1;
        }
    }
    return 0;
}

void
relay_debug(relay_t *relay)
{
    if(relay == NULL)
    {
        LOG_DEBUG("relay is NULL\n");
        return;
    }
    LOG_DEBUG("(1/3) %d @ %p\n", relay->number, (void*)relay);
    LOG_DEBUG("(2/3) name: %s\n", relay->name);
    LOG_DEBUG("(3/3) schedules @ %p:\n", (void*)relay->schedules);
    for(int i = 0; i < 7; ++i)
    {
        schedule_debug(relay->schedules[i]);
    }
}

void
relay_free(relay_t *relay)
{
    for(int i = 0; i < 7; ++i)
    {
        schedule_free(relay->schedules[i]);
    }
    free(relay);
}