Add Discord rich presence

This would work, were it not for some freak stack corruption caused by
GCC not liking the Discord RPC library...

Attorney_Online_remake.pro

@@ -47,7 +47,8 @@ SOURCES += main.cpp\
     aotextarea.cpp \
     aolineedit.cpp \
     aotextedit.cpp \
-    aoevidencedisplay.cpp
+    aoevidencedisplay.cpp \
+    discord_rich_presence.cpp
 
 HEADERS  += lobby.h \
     aoimage.h \
@@ -76,9 +77,16 @@ HEADERS  += lobby.h \
     aotextarea.h \
     aolineedit.h \
     aotextedit.h \
-    aoevidencedisplay.h
+    aoevidencedisplay.h \
+    discord_rich_presence.h
 
-unix:LIBS += -L$$PWD -lbass
+# 1. You need to get BASS and put the x86 bass DLL/headers in the project root folder
+#    AND the compilation output folder. If you want a static link, you'll probably
+#    need the .lib file too. MinGW-GCC is really finicky finding BASS, it seems.
+# 2. You need to compile the Discord Rich Presence SDK separately and add the lib/headers
+#    in the same way as BASS. Discord RPC uses CMake, which does not play nicely with
+#    QMake, so this step must be manual.
+unix:LIBS += -L$$PWD -lbass -ldiscord-rpc
 win32:LIBS += "$$PWD/bass.dll"
 android:LIBS += -L$$PWD\android\libs\armeabi-v7a\ -lbass
 

aoapplication.cpp

@@ -12,6 +12,7 @@
 AOApplication::AOApplication(int &argc, char **argv) : QApplication(argc, argv)
 {
   net_manager = new NetworkManager(this);
+  discord = new AttorneyOnline::Discord();
   QObject::connect(net_manager, SIGNAL(ms_connect_finished(bool, bool)),
                    SLOT(ms_connect_finished(bool, bool)));
 }
@@ -20,6 +21,7 @@ AOApplication::~AOApplication()
 {
   destruct_lobby();
   destruct_courtroom();
+  delete discord;
 }
 
 void AOApplication::construct_lobby()
@@ -38,6 +40,8 @@ void AOApplication::construct_lobby()
   int y = (screenGeometry.height()-w_lobby->height()) / 2;
   w_lobby->move(x, y);
 
+  discord->state_lobby();
+
   w_lobby->show();
 }
 

aoapplication.h

@@ -3,6 +3,7 @@
 
 #include "aopacket.h"
 #include "datatypes.h"
+#include "discord_rich_presence.h"
 
 #include <QApplication>
 #include <QVector>
@@ -23,6 +24,7 @@ public:
   NetworkManager *net_manager;
   Lobby *w_lobby;
   Courtroom *w_courtroom;
+  AttorneyOnline::Discord *discord;
 
   bool lobby_constructed = false;
   bool courtroom_constructed = false;

discord_rich_presence.cpp

@@ -0,0 +1,58 @@
+#include "discord_rich_presence.h"
+
+#include <cstring>
+
+#include <QDebug>
+
+namespace AttorneyOnline {
+
+Discord::Discord()
+{
+  DiscordEventHandlers handlers;
+  std::memset(&handlers, 0, sizeof(handlers));
+  handlers = {};
+  handlers.ready = [] {
+    qInfo() << "Discord RPC ready";
+  };
+  /*
+  handlers.disconnected = [](int errorCode, const char* message) {
+    qInfo() << "Discord RPC disconnected! " << message;
+  };
+  handlers.errored = [](int errorCode, const char* message) {
+    qWarning() << "Discord RPC errored out! " << message;
+  };
+  */
+  qInfo() << "Are things working out all right?";
+  Discord_Initialize(APPLICATION_ID, &handlers, 1, nullptr);
+}
+
+Discord::~Discord()
+{
+  Discord_Shutdown();
+}
+
+void Discord::state_lobby()
+{
+  DiscordRichPresence presence;
+  std::memset(&presence, 0, sizeof(presence));
+  presence.state = "In Lobby";
+  presence.details = "Idle";
+  presence.largeImageKey = "ao2-logo";
+  presence.largeImageText = "Objection!";
+  presence.instance = 1;
+  Discord_UpdatePresence(&presence);
+}
+
+void Discord::state_server(const char* name, const char* server_id)
+{
+  DiscordRichPresence presence;
+  std::memset(&presence, 0, sizeof(presence));
+  presence.state = "In a Server";
+  presence.details = name;
+  presence.largeImageKey = "ao2-logo";
+  presence.largeImageText = "Objection!";
+  presence.instance = 1;
+  presence.matchSecret = server_id;
+}
+
+}

discord_rich_presence.h

@@ -0,0 +1,21 @@
+#ifndef DISCORD_RICH_PRESENCE_H
+#define DISCORD_RICH_PRESENCE_H
+
+#include <discord-rpc.h>
+
+namespace AttorneyOnline {
+
+class Discord
+{
+private:
+  const char* APPLICATION_ID = "399779271737868288";
+public:
+  Discord();
+  ~Discord();
+
+  void state_lobby();
+  void state_server(const char* name, const char* server_id);
+};
+
+}
+#endif // DISCORD_RICH_PRESENCE_H

packet_distribution.cpp

@@ -8,6 +8,7 @@
 #include "debug_functions.h"
 
 #include <QDebug>
+#include <QCryptographicHash>
 
 void AOApplication::ms_packet_received(AOPacket *p_packet)
 {
@@ -226,15 +227,24 @@ void AOApplication::server_packet_received(AOPacket *p_packet)
     QString window_title = "Attorney Online 2";
     int selected_server = w_lobby->get_selected_server();
 
+    QString server_address = "", server_name = "";
     if (w_lobby->public_servers_selected)
     {
-      if (selected_server >= 0 && selected_server < server_list.size())
-        window_title += ": " + server_list.at(selected_server).name;
+      if (selected_server >= 0 && selected_server < server_list.size()) {
+        auto info = server_list.at(selected_server);
+        server_name = info.name;
+        server_address = info.ip + info.port;
+        window_title += ": " + server_name;
+      }
     }
     else
     {
-      if (selected_server >= 0 && selected_server < favorite_list.size())
-        window_title += ": " + favorite_list.at(selected_server).name;
+      if (selected_server >= 0 && selected_server < favorite_list.size()) {
+        auto info = favorite_list.at(selected_server);
+        server_name = info.name;
+        server_address = info.ip + info.port;
+        window_title += ": " + server_name;
+      }
     }
 
     w_courtroom->set_window_title(window_title);
@@ -251,6 +261,10 @@ void AOApplication::server_packet_received(AOPacket *p_packet)
       f_packet = new AOPacket("askchar2#%");
 
     send_server_packet(f_packet);
+
+    QCryptographicHash hash(QCryptographicHash::Algorithm::Sha256);
+    hash.addData(server_address.toUtf8());
+    discord->state_server((const char*) server_name.toLocal8Bit().data(), (const char*) hash.result().toBase64());
   }
   else if (header == "CI")
   {