From f75fb70ac9ab519bd64517406878951e46eecda2 Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Sun, 31 Dec 2023 17:48:39 -0500
Subject: [PATCH] Use KDSingleApplication to force single instance

---
 .gitmodules                  | 3 +++
 external/CMakeLists.txt      | 5 ++++-
 external/kdsingleapplication | 1 +
 launcher/CMakeLists.txt      | 1 +
 launcher/src/main.cpp        | 6 ++++++
 5 files changed, 15 insertions(+), 1 deletion(-)
 create mode 160000 external/kdsingleapplication

diff --git a/.gitmodules b/.gitmodules
index bb7c0c0..999b26a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "external/libphysis"]
 	path = external/libphysis
 	url = https://git.sr.ht/~redstrate/libphysis
+[submodule "external/kdsingleapplication"]
+	path = external/kdsingleapplication
+	url = git@github.com:KDAB/KDSingleApplication.git
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index 56f9dce..1605fda 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -11,7 +11,7 @@ find_package(Corrosion REQUIRED)
 corrosion_import_crate(MANIFEST_PATH ${CMAKE_CURRENT_SOURCE_DIR}/libphysis/Cargo.toml
         NO_DEFAULT_FEATURES
         FEATURES game_install)
-add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/libphysis/logger)
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/libphysis/logger EXCLUDE_FROM_ALL)
 
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(UNSHIELD REQUIRED IMPORTED_TARGET libunshield)
@@ -19,3 +19,6 @@ pkg_check_modules(UNSHIELD REQUIRED IMPORTED_TARGET libunshield)
 target_include_directories(physis INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/libphysis/target/public)
 target_link_libraries(physis INTERFACE ${UNSHIELD_LIBRARIES} z)
 target_link_directories(physis INTERFACE ${UNSHIELD_LIBRARY_DIRS})
+
+set(KDSingleApplication_QT6 ON)
+add_subdirectory(kdsingleapplication EXCLUDE_FROM_ALL)
\ No newline at end of file
diff --git a/external/kdsingleapplication b/external/kdsingleapplication
new file mode 160000
index 0000000..4ef5fbc
--- /dev/null
+++ b/external/kdsingleapplication
@@ -0,0 +1 @@
+Subproject commit 4ef5fbc0c8aa46252781d5d57b16546f28e447ac
diff --git a/launcher/CMakeLists.txt b/launcher/CMakeLists.txt
index 742311b..d3e8573 100644
--- a/launcher/CMakeLists.txt
+++ b/launcher/CMakeLists.txt
@@ -129,6 +129,7 @@ target_link_libraries(astra PRIVATE
         physis
         physis-logger
         cotp
+        KDAB::kdsingleapplication
         Qt6Keychain::Qt6Keychain
         Qt6::Core
         Qt6::Network
diff --git a/launcher/src/main.cpp b/launcher/src/main.cpp
index f95be1c..a43153e 100755
--- a/launcher/src/main.cpp
+++ b/launcher/src/main.cpp
@@ -9,6 +9,7 @@
 #include <QMessageBox>
 #include <QQuickStyle>
 #include <QtWebView>
+#include <kdsingleapplication.h>
 #include <qcoroqml.h>
 
 #include "astra-version.h"
@@ -27,6 +28,11 @@ int main(int argc, char *argv[])
 
     QApplication app(argc, argv);
 
+    KDSingleApplication singleApplication;
+    if (!singleApplication.isPrimaryInstance()) {
+        return 0;
+    }
+
     // Default to a sensible message pattern
     if (qEnvironmentVariableIsEmpty("QT_MESSAGE_PATTERN")) {
         qputenv("QT_MESSAGE_PATTERN", "[%{time yyyy-MM-dd h:mm:ss.zzz}] %{if-category}[%{category}] %{endif}[%{type}] %{message}");