Fork of the espurna firmware for `mhsw` switches
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/*
NTP MODULE
Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if NTP_SUPPORT
#include <TimeLib.h>
#include <NtpClientLib.h>
#include <WiFiClient.h>
#include <Ticker.h>
unsigned long _ntp_start = 0;
bool _ntp_update = false;
bool _ntp_configure = false;
// -----------------------------------------------------------------------------
// NTP
// -----------------------------------------------------------------------------
#if WEB_SUPPORT
bool _ntpWebSocketOnReceive(const char * key, JsonVariant& value) {
return (strncmp(key, "ntp", 3) == 0);
}
void _ntpWebSocketOnSend(JsonObject& root) {
root["ntpVisible"] = 1;
root["ntpStatus"] = (timeStatus() == timeSet);
root["ntpServer"] = getSetting("ntpServer", NTP_SERVER);
root["ntpOffset"] = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
root["ntpDST"] = getSetting("ntpDST", NTP_DAY_LIGHT).toInt() == 1;
root["ntpRegion"] = getSetting("ntpRegion", NTP_DST_REGION).toInt();
if (ntpSynced()) root["now"] = now();
}
#endif
void _ntpStart() {
_ntp_start = 0;
NTP.begin(getSetting("ntpServer", NTP_SERVER));
NTP.setInterval(NTP_SYNC_INTERVAL, NTP_UPDATE_INTERVAL);
NTP.setNTPTimeout(NTP_TIMEOUT);
_ntpConfigure();
}
void _ntpConfigure() {
_ntp_configure = false;
int offset = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
int sign = offset > 0 ? 1 : -1;
offset = abs(offset);
int tz_hours = sign * (offset / 60);
int tz_minutes = sign * (offset % 60);
if (NTP.getTimeZone() != tz_hours || NTP.getTimeZoneMinutes() != tz_minutes) {
NTP.setTimeZone(tz_hours, tz_minutes);
_ntp_update = true;
}
bool daylight = getSetting("ntpDST", NTP_DAY_LIGHT).toInt() == 1;
if (NTP.getDayLight() != daylight) {
NTP.setDayLight(daylight);
_ntp_update = true;
}
String server = getSetting("ntpServer", NTP_SERVER);
if (!NTP.getNtpServerName().equals(server)) {
NTP.setNtpServerName(server);
}
uint8_t dst_region = getSetting("ntpRegion", NTP_DST_REGION).toInt();
NTP.setDSTZone(dst_region);
}
void _ntpUpdate() {
_ntp_update = false;
#if WEB_SUPPORT
wsSend(_ntpWebSocketOnSend);
#endif
if (ntpSynced()) {
time_t t = now();
DEBUG_MSG_P(PSTR("[NTP] UTC Time : %s\n"), (char *) ntpDateTime(ntpLocal2UTC(t)).c_str());
DEBUG_MSG_P(PSTR("[NTP] Local Time: %s\n"), (char *) ntpDateTime(t).c_str());
}
}
void _ntpLoop() {
if (0 < _ntp_start && _ntp_start < millis()) _ntpStart();
if (_ntp_configure) _ntpConfigure();
if (_ntp_update) _ntpUpdate();
now();
#if BROKER_SUPPORT
static unsigned char last_minute = 60;
if (ntpSynced() && (minute() != last_minute)) {
last_minute = minute();
brokerPublish(MQTT_TOPIC_DATETIME, ntpDateTime().c_str());
}
#endif
}
void _ntpBackwards() {
moveSetting("ntpServer1", "ntpServer");
delSetting("ntpServer2");
delSetting("ntpServer3");
int offset = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
if (-30 < offset && offset < 30) {
offset *= 60;
setSetting("ntpOffset", offset);
}
}
// -----------------------------------------------------------------------------
bool ntpSynced() {
return (year() > 2017);
}
String ntpDateTime(time_t t) {
char buffer[20];
snprintf_P(buffer, sizeof(buffer),
PSTR("%04d-%02d-%02d %02d:%02d:%02d"),
year(t), month(t), day(t), hour(t), minute(t), second(t)
);
return String(buffer);
}
String ntpDateTime() {
if (ntpSynced()) return ntpDateTime(now());
return String();
}
time_t ntpLocal2UTC(time_t local) {
int offset = getSetting("ntpOffset", NTP_TIME_OFFSET).toInt();
if (NTP.isSummerTime()) offset += 60;
return local - offset * 60;
}
// -----------------------------------------------------------------------------
void ntpSetup() {
_ntpBackwards();
NTP.onNTPSyncEvent([](NTPSyncEvent_t error) {
if (error) {
#if WEB_SUPPORT
wsSend_P(PSTR("{\"ntpStatus\": false}"));
#endif
if (error == noResponse) {
DEBUG_MSG_P(PSTR("[NTP] Error: NTP server not reachable\n"));
} else if (error == invalidAddress) {
DEBUG_MSG_P(PSTR("[NTP] Error: Invalid NTP server address\n"));
}
} else {
_ntp_update = true;
}
});
wifiRegister([](justwifi_messages_t code, char * parameter) {
if (code == MESSAGE_CONNECTED) _ntp_start = millis() + NTP_START_DELAY;
});
#if WEB_SUPPORT
wsOnSendRegister(_ntpWebSocketOnSend);
wsOnReceiveRegister(_ntpWebSocketOnReceive);
wsOnAfterParseRegister([]() { _ntp_configure = true; });
#endif
// Register loop
espurnaRegisterLoop(_ntpLoop);
}
#endif // NTP_SUPPORT