Add setting for SNTP server

components/settings/settings.c

@@ -23,6 +23,7 @@ typedef enum {
 	SSID,
 	PSK,
 	TIMEZONE,
+	SNTP_SERVER,
 	ITEM_COUNT,
 } ItemIndex;
 
@@ -53,6 +54,10 @@ static Item state[ITEM_COUNT] = {
 		.id = "timezone",
 		.default_value = CONFIG_DEFAULT_TIMEZONE,
 	},
+	[SNTP_SERVER] = {
+		.id = "sntp-server",
+		.default_value = CONFIG_DEFAULT_SNTP_SERVER,
+	},
 };
 
 static bool load(ItemIndex item)
@@ -281,3 +286,18 @@ void settings_add_timezone_callback(SettingsCallback callback)
 {
 	add_callback(TIMEZONE, callback);
 }
+
+void settings_set_sntp_server(const char *sntp_server)
+{
+	set(SNTP_SERVER, sntp_server);
+}
+
+size_t settings_get_sntp_server(char *buffer, size_t buffer_size)
+{
+	return get(SNTP_SERVER, buffer, buffer_size);
+}
+
+void settings_add_sntp_server_callback(SettingsCallback callback)
+{
+	add_callback(SNTP_SERVER, callback);
+}