Start of 5.X work

components/services/system_time.c

@@ -0,0 +1,44 @@
+/* LwIP SNTP example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include "Config.h"
+#include "esp_attr.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "esp_sleep.h"
+#include "esp_sntp.h"
+#include "esp_system.h"
+#include "tools.h"
+#include <string.h>
+#include <sys/time.h>
+#include <time.h>
+static const char* TAG = "system_time";
+
+void system_time_init(void) {
+    char strftime_buf[64];
+    time_t now;
+    struct tm timeinfo;
+    const char* timezone =
+        platform->has_services && platform->services.timezone && strlen(platform->services.timezone) > 0 ? platform->services.timezone : "EST5EDT,M3.2.0/2,M11.1.0";
+    setenv("TZ", timezone, 1);
+    tzset();
+    time(&now);
+    localtime_r(&now, &timeinfo);
+    // Is time set? If not, tm_year will be (1970 - 1900).
+    if (timeinfo.tm_year < (2016 - 1900)) {
+        ESP_LOGI(TAG, "Time is not set yet. Connecting to WiFi and getting time over NTP.");
+        sntp_servermode_dhcp(2);
+        esp_sntp_setoperatingmode(ESP_SNTP_OPMODE_POLL);
+        esp_sntp_setservername(0, "pool.ntp.org");
+        esp_sntp_init();
+
+    } else {
+        strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+        ESP_LOGI(TAG, "Current date/time is: %s for time zone %s", strftime_buf, timezone);
+    }
+}