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// Copyright (c) 2017-2022, Mudita Sp. z.o.o. All rights reserved.
// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
#include <module-services/service-cellular/service-cellular/connection-manager/ConnectionManager.hpp>
#include <module-services/service-cellular/service-cellular/CellularMessage.hpp>
#include <module-cellular/at/Cmd.hpp>
auto ConnectionManager::onPhoneModeChange(sys::phone_modes::PhoneMode mode) -> bool
{
cellular->holdMinimumCpuFrequency();
if (mode == sys::phone_modes::PhoneMode::Offline) {
return handleModeChangeToCommonOffline();
}
return handleModeChangeToConnected();
}
void ConnectionManager::onTimerTick()
{
if (connectionInterval.count() == 0 || isFlightMode) {
return;
}
minutesOfflineElapsed++;
if (minutesOfflineElapsed.count() >= connectionInterval.count()) {
minutesOfflineElapsed = static_cast<std::chrono::minutes>(0);
onlinePeriod = true;
cellular->holdMinimumCpuFrequency();
cellular->connectToNetwork();
return;
}
if (onlinePeriod) {
minutesOnlineElapsed++;
if (minutesOnlineElapsed.count() >= connectedPeriod.count()) {
minutesOnlineElapsed = static_cast<std::chrono::minutes>(0);
onlinePeriod = false;
cellular->holdMinimumCpuFrequency();
cellular->disconnectFromNetwork();
}
}
}
void ConnectionManager::setInterval(const std::chrono::minutes interval)
{
connectionInterval = interval;
minutesOnlineElapsed = static_cast<std::chrono::minutes>(0);
minutesOfflineElapsed = static_cast<std::chrono::minutes>(0);
}
void ConnectionManager::setFlightMode(const bool mode)
{
isFlightMode = mode;
}
auto ConnectionManager::isMessagesOnlyMode() -> bool
{
return !isFlightMode && connectionInterval.count() != 0;
}
auto ConnectionManager::handleModeChangeToCommonOffline() -> bool
{
auto isConnected = cellular->isConnectedToNetwork();
if (not isConnected.has_value()) {
retryOnFail();
return false;
}
if (isConnected.value()) {
cellular->hangUpOngoingCall();
if (!cellular->disconnectFromNetwork()) {
retryOnFail();
return false;
}
cellular->clearNetworkIndicator();
}
failRetries = 0;
minutesOfflineElapsed = static_cast<std::chrono::minutes>(0);
minutesOnlineElapsed = static_cast<std::chrono::minutes>(0);
if (isMessagesOnlyMode()) {
handleModeChangeToMessageOnlyMode();
return true;
}
else {
handleModeChangeToOfflineMode();
return true;
}
}
void ConnectionManager::handleModeChangeToOfflineMode()
{
if (cellular->isConnectionTimerActive()) {
cellular->stopConnectionTimer();
onlinePeriod = false;
}
}
void ConnectionManager::handleModeChangeToMessageOnlyMode()
{
if (!cellular->isConnectionTimerActive()) {
cellular->startConnectionTimer();
}
}
auto ConnectionManager::handleModeChangeToConnected() -> bool
{
if (cellular->isConnectionTimerActive()) {
cellular->stopConnectionTimer();
onlinePeriod = false;
}
auto isConnected = cellular->isConnectedToNetwork();
if (not isConnected.has_value()) {
retryOnFail();
return false;
}
if (not isConnected.value()) {
if (!cellular->connectToNetwork()) {
retryOnFail();
return false;
}
}
failRetries = 0;
return true;
}
void ConnectionManager::retryOnFail()
{
if (failRetries < maxFailRetries) {
cellular->retryPhoneModeChange();
failRetries++;
return;
}
LOG_FATAL("Not able to handle phone mode change!!");
failRetries = 0;
}