merge #2108

src/ESP32React/NTPStatus.cpp

@@ -0,0 +1,62 @@
+#include "NTPStatus.h"
+
+#include <emsesp_stub.hpp>
+
+#include <array>
+
+NTPStatus::NTPStatus(AsyncWebServer * server, SecurityManager * securityManager) {
+    securityManager->addEndpoint(server, NTP_STATUS_SERVICE_PATH, AuthenticationPredicates::IS_AUTHENTICATED, [this](AsyncWebServerRequest * request) {
+        ntpStatus(request);
+    });
+}
+
+/*
+ * Formats the time using the format provided.
+ *
+ * Uses a 25 byte buffer, large enough to fit an ISO time string with offset.
+ */
+String formatTime(tm * time, const char * format) {
+    std::array<char, 25> time_string{};
+    strftime(time_string.data(), time_string.size(), format, time);
+    return {time_string.data()};
+}
+
+String toUTCTimeString(tm * time) {
+    return formatTime(time, "%FT%TZ");
+}
+
+String toLocalTimeString(tm * time) {
+    return formatTime(time, "%FT%T");
+}
+
+void NTPStatus::ntpStatus(AsyncWebServerRequest * request) {
+    auto *     response = new AsyncJsonResponse(false);
+    JsonObject root     = response->getRoot();
+
+    // grab the current instant in unix seconds
+    time_t now = time(nullptr);
+
+    // only provide enabled/disabled status for now
+    root["status"] = [] {
+        if (esp_sntp_enabled()) {
+            if (emsesp::EMSESP::system_.ntp_connected()) {
+                return 2;
+            } else {
+                return 1;
+            }
+        }
+        return 0;
+    }();
+
+    // the current time in UTC
+    root["utc_time"] = toUTCTimeString(gmtime(&now));
+
+    // local time with offset
+    root["local_time"] = toLocalTimeString(localtime(&now));
+
+    // the sntp server name
+    root["server"] = esp_sntp_getservername(0);
+
+    response->setLength();
+    request->send(response);
+}