#include "common/theSNTP.h"

static const char *TAG = "SNTP";

void sntp_sync_notification_call_back(struct timeval *tv)
{
    ESP_LOGI(TAG, "Time synchronization done");
}

static void initialize_sntp()
{
    ESP_LOGI(TAG, "Initializing SNTP");
    sntp_setoperatingmode(SNTP_OPMODE_POLL);
    sntp_setservername(0, "pool.ntp.org");
    sntp_set_time_sync_notification_cb(sntp_sync_notification_call_back);
    sntp_init();
    ESP_LOGI(TAG, "Getting current time from \"%s\"", sntp_getservername(0));
}

static void set_time_zone_to_germany()
{
    // Timezone Codes: https://github.com/nayarsystems/posix_tz_db/blob/master/zones.csv
    time_t now;
    struct tm timeinfo;

    setenv("TZ", "CET-1CEST,M3.5.0,M10.5.0/3", 1);
    tzset();
    time(&now);
    localtime_r(&now, &timeinfo);
    ESP_LOGI(TAG, "Timezone set to Europe/Berlin");
}

void setup_sntp()
{
    set_time_zone_to_germany();
    initialize_sntp();
}