module: Create BCAT backend based upon Settings value on construction

src/core/CMakeLists.txt

@@ -1,3 +1,9 @@
+if (YUZU_ENABLE_BOXCAT)
+    set(BCAT_BOXCAT_ADDITIONAL_SOURCES hle/service/bcat/backend/boxcat.cpp hle/service/bcat/backend/boxcat.h)
+else()
+    set(BCAT_BOXCAT_ADDITIONAL_SOURCES)
+endif()
+
 add_library(core STATIC
     arm/arm_interface.h
     arm/arm_interface.cpp
@@ -82,6 +88,8 @@ add_library(core STATIC
     file_sys/vfs_concat.h
     file_sys/vfs_layered.cpp
     file_sys/vfs_layered.h
+    file_sys/vfs_libzip.cpp
+    file_sys/vfs_libzip.h
     file_sys/vfs_offset.cpp
     file_sys/vfs_offset.h
     file_sys/vfs_real.cpp
@@ -241,6 +249,9 @@ add_library(core STATIC
     hle/service/audio/errors.h
     hle/service/audio/hwopus.cpp
     hle/service/audio/hwopus.h
+    hle/service/bcat/backend/backend.cpp
+    hle/service/bcat/backend/backend.h
+    ${BCAT_BOXCAT_ADDITIONAL_SOURCES}
     hle/service/bcat/bcat.cpp
     hle/service/bcat/bcat.h
     hle/service/bcat/module.cpp
@@ -499,6 +510,15 @@ create_target_directory_groups(core)
 
 target_link_libraries(core PUBLIC common PRIVATE audio_core video_core)
 target_link_libraries(core PUBLIC Boost::boost PRIVATE fmt json-headers mbedtls opus unicorn open_source_archives)
+
+if (YUZU_ENABLE_BOXCAT)
+    get_directory_property(OPENSSL_LIBS
+        DIRECTORY ${PROJECT_SOURCE_DIR}/externals/libressl
+        DEFINITION OPENSSL_LIBS)
+    target_compile_definitions(core PRIVATE -DCPPHTTPLIB_OPENSSL_SUPPORT -DYUZU_ENABLE_BOXCAT)
+    target_link_libraries(core PRIVATE httplib json-headers ${OPENSSL_LIBS} zip)
+endif()
+
 if (ENABLE_WEB_SERVICE)
     target_compile_definitions(core PRIVATE -DENABLE_WEB_SERVICE)
     target_link_libraries(core PRIVATE web_service)

src/core/hle/service/bcat/module.cpp

@@ -38,10 +38,22 @@ void Module::Interface::CreateBcatService(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
     rb.PushIpcInterface<IBcatService>();
+namespace {
+std::unique_ptr<Backend> CreateBackendFromSettings(DirectoryGetter getter) {
+    const auto backend = Settings::values.bcat_backend;
+
+#ifdef YUZU_ENABLE_BOXCAT
+    if (backend == "boxcat")
+        return std::make_unique<Boxcat>(std::move(getter));
+#endif
+
+    return std::make_unique<NullBackend>(std::move(getter));
 }
+} // Anonymous namespace
 
 Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+    : ServiceFramework(name), module(std::move(module)),
+      backend(CreateBackendFromSettings(&Service::FileSystem::GetBCATDirectory)) {}
 
 Module::Interface::~Interface() = default;
 

src/core/hle/service/bcat/module.h

@@ -8,6 +8,8 @@
 
 namespace Service::BCAT {
 
+class Backend;
+
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
@@ -19,6 +21,7 @@ public:
 
     protected:
         std::shared_ptr<Module> module;
+        std::unique_ptr<Backend> backend;
     };
 };