From 6a5e59b76a84eeabc4a5f659933523a6803b849b Mon Sep 17 00:00:00 2001
From: Roland Rossgotterer <roland.rossgotterer@gmail.com>
Date: Tue, 12 Mar 2019 16:26:34 +0100
Subject: [PATCH] [FS9] Implement time synchronisation

---
 src/plugins/simulator/fs9/simulatorfs9.cpp    | 21 +++++++++++++++++++
 src/plugins/simulator/fs9/simulatorfs9.h      |  3 +++
 src/plugins/simulator/fscommon/fsuipc.h       |  3 +++
 .../simulator/fscommon/fsuipcdummy.cpp        |  7 +++++++
 src/plugins/simulator/fscommon/fsuipcimpl.cpp | 17 +++++++++++++++
 5 files changed, 51 insertions(+)

diff --git a/src/plugins/simulator/fs9/simulatorfs9.cpp b/src/plugins/simulator/fs9/simulatorfs9.cpp
index b12b29bd3..8f441b549 100644
--- a/src/plugins/simulator/fs9/simulatorfs9.cpp
+++ b/src/plugins/simulator/fs9/simulatorfs9.cpp
@@ -315,6 +315,7 @@ namespace BlackSimPlugin
                 {
                     updateOwnAircraftFromSimulator(fsuipcAircraft);
                 }
+                synchronizeTime();
             }
         }
 
@@ -402,6 +403,26 @@ namespace BlackSimPlugin
             }
         }
 
+        void CSimulatorFs9::synchronizeTime()
+        {
+            if (!m_simTimeSynced) { return; }
+            if (!this->isConnected())   { return; }
+            if (!m_useFsuipc || !m_fsuipc) { return; }
+            if (!m_fsuipc->isOpened()) { return; }
+
+            QDateTime myDateTime = QDateTime::currentDateTimeUtc();
+            if (!m_syncTimeOffset.isZeroEpsilonConsidered())
+            {
+                int offsetSeconds = m_syncTimeOffset.valueInteger(CTimeUnit::s());
+                myDateTime = myDateTime.addSecs(offsetSeconds);
+            }
+
+            const QTime myTime = myDateTime.time();
+            const int h = myTime.hour();
+            const int m = myTime.minute();
+            m_fsuipc->setSimulatorTime(h, m);
+        }
+
         void CSimulatorFs9::injectWeatherGrid(const Weather::CWeatherGrid &weatherGrid)
         {
             if (!m_useFsuipc || !m_fsuipc) { return; }
diff --git a/src/plugins/simulator/fs9/simulatorfs9.h b/src/plugins/simulator/fs9/simulatorfs9.h
index 86a8300ec..0e7535148 100644
--- a/src/plugins/simulator/fs9/simulatorfs9.h
+++ b/src/plugins/simulator/fs9/simulatorfs9.h
@@ -100,6 +100,9 @@ namespace BlackSimPlugin
             //! Disconnect all clients
             void disconnectAllClients();
 
+            //! Sync time with user's computer
+            void synchronizeTime();
+
             QHash<BlackMisc::Aviation::CCallsign, QPointer<CFs9Client>> m_hashFs9Clients;
             QMetaObject::Connection m_connectionHostMessages;
             bool m_simConnected = false; //!< Is simulator connected?
diff --git a/src/plugins/simulator/fscommon/fsuipc.h b/src/plugins/simulator/fscommon/fsuipc.h
index c80a23df2..4a75bf352 100644
--- a/src/plugins/simulator/fscommon/fsuipc.h
+++ b/src/plugins/simulator/fscommon/fsuipc.h
@@ -53,6 +53,9 @@ namespace BlackSimPlugin
             //! Write weather grid to simulator
             bool write(const BlackMisc::Weather::CWeatherGrid &weatherGrid);
 
+            //! Set simulator time
+            bool setSimulatorTime(int hour, int minute);
+
             //! Get the version
             QString getVersion() const;
 
diff --git a/src/plugins/simulator/fscommon/fsuipcdummy.cpp b/src/plugins/simulator/fscommon/fsuipcdummy.cpp
index 84990cbd2..7429e4fc3 100644
--- a/src/plugins/simulator/fscommon/fsuipcdummy.cpp
+++ b/src/plugins/simulator/fscommon/fsuipcdummy.cpp
@@ -66,6 +66,13 @@ namespace BlackSimPlugin
             return false;
         }
 
+        bool CFsuipc::setSimulatorTime(int hour, int minute)
+        {
+            Q_UNUSED(hour);
+            Q_UNUSED(minute);
+            return false;
+        }
+
         QString CFsuipc::getVersion() const
         {
             return QStringLiteral("N/A");
diff --git a/src/plugins/simulator/fscommon/fsuipcimpl.cpp b/src/plugins/simulator/fscommon/fsuipcimpl.cpp
index 726445e8f..24138bd63 100644
--- a/src/plugins/simulator/fscommon/fsuipcimpl.cpp
+++ b/src/plugins/simulator/fscommon/fsuipcimpl.cpp
@@ -330,6 +330,23 @@ namespace BlackSimPlugin
             return true;
         }
 
+        bool CFsuipc::setSimulatorTime(int hour, int minute)
+        {
+            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
+            if (!this->isOpened()) { return false; }
+
+            // should be the same as writing via SimConnect data area
+            DWORD dwResult;
+            quint8 hourRaw = hour;
+            quint8 minuteRaw = minute;
+
+            const bool ok =
+                FSUIPC_Write(0x023b, 1, &hourRaw,  &dwResult) &&
+                FSUIPC_Write(0x023c, 1, &minuteRaw, &dwResult);
+            if (ok) { FSUIPC_Process(&dwResult); }
+            return ok && dwResult == 0;
+        }
+
         QString CFsuipc::getVersion() const
         {
             return m_fsuipcVersion;