[wip] experiment with promise and future

Signed-off-by: Soumya Subramanya <s.subramanya@alfen.com>

[wip] fixed bug in print statement

Signed-off-by: Soumya Subramanya <s.subramanya@alfen.com>

Author: SNSubramanya

config/v201/config.json

@@ -263,7 +263,7 @@
             "SupportedCriteria": {
                 "variable_name": "SupportedCriteria",
                 "attributes": {
-                    "Actual": "Enabled,Active,Available,Problem"
+                    "Actual": "Enabled,Active,Available"
                 }
             },
             "UpdateCertificateSymlinks": {

include/ocpp/v201/charge_point.hpp

@@ -125,12 +125,7 @@ struct Callbacks {
     std::function<UpdateFirmwareResponse(const UpdateFirmwareRequest& request)> update_firmware_request_callback;
     // callback to be called when a variable has been changed by the CSMS
     std::optional<std::function<void(const SetVariableData& set_variable_data)>> variable_changed_callback;
-    // callback is called when receiving a SetNetworkProfile.req from the CSMS
-    std::optional<std::function<SetNetworkProfileStatusEnum(
-        const int32_t configuration_slot, const NetworkConnectionProfile& network_connection_profile)>>
-        validate_network_profile_callback;
-    std::optional<std::function<bool(const NetworkConnectionProfile& network_connection_profile)>>
-        configure_network_connection_profile_callback;
+
     std::optional<std::function<void(const ocpp::DateTime& currentTime)>> time_sync_callback;
 
     /// \brief callback to be called to congfigure ocpp message logging
@@ -167,11 +162,20 @@ struct Callbacks {
     /// messageId
     std::optional<std::function<DataTransferResponse(const DataTransferRequest& request)>> data_transfer_callback;
 
+    /* Callbacks for networking */
     /// \brief register a \p callback that is called when the websocket is connected successfully
     std::function < void(std::optional<NetworkConnectionProfile> network_profile)> websocket_connected_callback;
 
     /// \brief register a \p callback that is called when the websocket connection is disconnected
     std::function<void()>websocket_disconnected_callback;
+
+    // callback is called when receiving a SetNetworkProfile.req from the CSMS
+    std::optional<std::function<SetNetworkProfileStatusEnum(
+        const int32_t configuration_slot, const NetworkConnectionProfile& network_connection_profile)>>
+        validate_network_profile_callback;
+    std::optional<std::function<bool(const NetworkConnectionProfile& network_connection_profile,
+                                     std::promise<int>& network_promise)>>
+        configure_network_connection_profile_callback;
 };
 
 /// \brief Combines ChangeAvailabilityRequest with persist flag for scheduled Availability changes

lib/ocpp/v201/charge_point.cpp

@@ -11,7 +11,7 @@
 
 #include <stdexcept>
 #include <string>
-
+#include <future>
 using namespace std::chrono_literals;
 
 const auto DEFAULT_MAX_CUSTOMER_INFORMATION_DATA_LENGTH = 51200;
@@ -649,6 +649,8 @@ bool ChargePoint::send(CallError call_error) {
 
 void ChargePoint::init_websocket() {
 
+    std::promise<int> network_promise;
+
     if (this->device_model->get_value<std::string>(ControllerComponentVariables::ChargePointId).find(':') !=
         std::string::npos) {
         EVLOG_AND_THROW(std::runtime_error("ChargePointId must not contain \':\'"));
@@ -663,7 +665,8 @@ void ChargePoint::init_websocket() {
 
     if (!network_connection_profile.has_value() or
         (this->callbacks.configure_network_connection_profile_callback.has_value() and
-         !this->callbacks.configure_network_connection_profile_callback.value()(network_connection_profile.value()))) {
+         !this->callbacks.configure_network_connection_profile_callback.value()(network_connection_profile.value(),
+                                                                                network_promise))) {
         EVLOG_warning << "NetworkConnectionProfile could not be retrieved or configuration of network with the given "
                          "profile failed";
         this->websocket_timer.timeout(
@@ -675,6 +678,8 @@ void ChargePoint::init_websocket() {
         return;
     }
 
+    EVLOG_info << "connection profile value: -> " << network_promise.get_future().get();
+    
     const auto& security_profile_cv = ControllerComponentVariables::SecurityProfile;
     if (security_profile_cv.variable.has_value()) {
         this->device_model->set_read_only_value(security_profile_cv.component, security_profile_cv.variable.value(),