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