service/am: Remove usages of global system accessors

Avoids the use of global accessors, removing the reliance on global
state. This also makes dependencies explicit in the interface, as
opposed to being hidden

12 files changed, 88 insertions, 48 deletions

diff --git a/src/core/hle/service/am/applets/applets.cpp b/src/core/hle/service/am/applets/applets.cpp
index 6bdba2468..d2e35362f 100644
--- a/src/core/hle/service/am/applets/applets.cpp
+++ b/src/core/hle/service/am/applets/applets.cpp
@@ -23,8 +23,7 @@
 
 namespace Service::AM::Applets {
 
-AppletDataBroker::AppletDataBroker() {
-    auto& kernel = Core::System::GetInstance().Kernel();
+AppletDataBroker::AppletDataBroker(Kernel::KernelCore& kernel) {
     state_changed_event = Kernel::WritableEvent::CreateEventPair(
         kernel, Kernel::ResetType::Manual, "ILibraryAppletAccessor:StateChangedEvent");
     pop_out_data_event = Kernel::WritableEvent::CreateEventPair(
@@ -121,7 +120,7 @@ Kernel::SharedPtr<Kernel::ReadableEvent> AppletDataBroker::GetStateChangedEvent(
     return state_changed_event.readable;
 }
 
-Applet::Applet() = default;
+Applet::Applet(Kernel::KernelCore& kernel_) : broker{kernel_} {}
 
 Applet::~Applet() = default;
 
@@ -154,7 +153,7 @@ AppletFrontendSet::AppletFrontendSet(AppletFrontendSet&&) noexcept = default;
 
 AppletFrontendSet& AppletFrontendSet::operator=(AppletFrontendSet&&) noexcept = default;
 
-AppletManager::AppletManager() = default;
+AppletManager::AppletManager(Core::System& system_) : system{system_} {}
 
 AppletManager::~AppletManager() = default;
 
@@ -216,28 +215,28 @@ void AppletManager::ClearAll() {
     frontend = {};
 }
 
-std::shared_ptr<Applet> AppletManager::GetApplet(AppletId id, u64 current_process_title_id) const {
+std::shared_ptr<Applet> AppletManager::GetApplet(AppletId id) const {
     switch (id) {
     case AppletId::Auth:
-        return std::make_shared<Auth>(*frontend.parental_controls);
+        return std::make_shared<Auth>(system, *frontend.parental_controls);
     case AppletId::Error:
-        return std::make_shared<Error>(*frontend.error);
+        return std::make_shared<Error>(system, *frontend.error);
     case AppletId::ProfileSelect:
-        return std::make_shared<ProfileSelect>(*frontend.profile_select);
+        return std::make_shared<ProfileSelect>(system, *frontend.profile_select);
     case AppletId::SoftwareKeyboard:
-        return std::make_shared<SoftwareKeyboard>(*frontend.software_keyboard);
+        return std::make_shared<SoftwareKeyboard>(system, *frontend.software_keyboard);
     case AppletId::PhotoViewer:
-        return std::make_shared<PhotoViewer>(*frontend.photo_viewer);
+        return std::make_shared<PhotoViewer>(system, *frontend.photo_viewer);
     case AppletId::LibAppletShop:
-        return std::make_shared<WebBrowser>(*frontend.web_browser, current_process_title_id,
+        return std::make_shared<WebBrowser>(system, *frontend.web_browser,
                                             frontend.e_commerce.get());
     case AppletId::LibAppletOff:
-        return std::make_shared<WebBrowser>(*frontend.web_browser, current_process_title_id);
+        return std::make_shared<WebBrowser>(system, *frontend.web_browser);
     default:
         UNIMPLEMENTED_MSG(
             "No backend implementation exists for applet_id={:02X}! Falling back to stub applet.",
             static_cast<u8>(id));
-        return std::make_shared<StubApplet>(id);
+        return std::make_shared<StubApplet>(system, id);
     }
 }
 
diff --git a/src/core/hle/service/am/applets/applets.h b/src/core/hle/service/am/applets/applets.h
index adc973dad..764c3418c 100644
--- a/src/core/hle/service/am/applets/applets.h
+++ b/src/core/hle/service/am/applets/applets.h
@@ -12,6 +12,10 @@
 
 union ResultCode;
 
+namespace Core {
+class System;
+}
+
 namespace Core::Frontend {
 class ECommerceApplet;
 class ErrorApplet;
@@ -22,6 +26,10 @@ class SoftwareKeyboardApplet;
 class WebBrowserApplet;
 } // namespace Core::Frontend
 
+namespace Kernel {
+class KernelCore;
+}
+
 namespace Service::AM {
 
 class IStorage;
@@ -53,7 +61,7 @@ enum class AppletId : u32 {
 
 class AppletDataBroker final {
 public:
-    AppletDataBroker();
+    explicit AppletDataBroker(Kernel::KernelCore& kernel_);
     ~AppletDataBroker();
 
     struct RawChannelData {
@@ -108,7 +116,7 @@ private:
 
 class Applet {
 public:
-    Applet();
+    explicit Applet(Kernel::KernelCore& kernel_);
     virtual ~Applet();
 
     virtual void Initialize();
@@ -179,7 +187,7 @@ struct AppletFrontendSet {
 
 class AppletManager {
 public:
-    AppletManager();
+    explicit AppletManager(Core::System& system_);
     ~AppletManager();
 
     void SetAppletFrontendSet(AppletFrontendSet set);
@@ -187,10 +195,11 @@ public:
     void SetDefaultAppletsIfMissing();
     void ClearAll();
 
-    std::shared_ptr<Applet> GetApplet(AppletId id, u64 current_process_title_id) const;
+    std::shared_ptr<Applet> GetApplet(AppletId id) const;
 
 private:
     AppletFrontendSet frontend;
+    Core::System& system;
 };
 
 } // namespace Applets
diff --git a/src/core/hle/service/am/applets/error.cpp b/src/core/hle/service/am/applets/error.cpp
index af3a900f8..a7db26725 100644
--- a/src/core/hle/service/am/applets/error.cpp
+++ b/src/core/hle/service/am/applets/error.cpp
@@ -85,7 +85,8 @@ ResultCode Decode64BitError(u64 error) {
 
 } // Anonymous namespace
 
-Error::Error(const Core::Frontend::ErrorApplet& frontend) : frontend(frontend) {}
+Error::Error(Core::System& system_, const Core::Frontend::ErrorApplet& frontend_)
+    : Applet{system_.Kernel()}, frontend(frontend_), system{system_} {}
 
 Error::~Error() = default;
 
@@ -145,8 +146,8 @@ void Error::Execute() {
     }
 
     const auto callback = [this] { DisplayCompleted(); };
-    const auto title_id = Core::CurrentProcess()->GetTitleID();
-    const auto& reporter{Core::System::GetInstance().GetReporter()};
+    const auto title_id = system.CurrentProcess()->GetTitleID();
+    const auto& reporter{system.GetReporter()};
 
     switch (mode) {
     case ErrorAppletMode::ShowError:
diff --git a/src/core/hle/service/am/applets/error.h b/src/core/hle/service/am/applets/error.h
index a3590d181..a105cdb0c 100644
--- a/src/core/hle/service/am/applets/error.h
+++ b/src/core/hle/service/am/applets/error.h
@@ -7,6 +7,10 @@
 #include "core/hle/result.h"
 #include "core/hle/service/am/applets/applets.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::AM::Applets {
 
 enum class ErrorAppletMode : u8 {
@@ -21,7 +25,7 @@ enum class ErrorAppletMode : u8 {
 
 class Error final : public Applet {
 public:
-    explicit Error(const Core::Frontend::ErrorApplet& frontend);
+    explicit Error(Core::System& system_, const Core::Frontend::ErrorApplet& frontend_);
     ~Error() override;
 
     void Initialize() override;
@@ -42,6 +46,7 @@ private:
     std::unique_ptr<ErrorArguments> args;
 
     bool complete = false;
+    Core::System& system;
 };
 
 } // namespace Service::AM::Applets
diff --git a/src/core/hle/service/am/applets/general_backend.cpp b/src/core/hle/service/am/applets/general_backend.cpp
index e0def8dff..328438a1d 100644
--- a/src/core/hle/service/am/applets/general_backend.cpp
+++ b/src/core/hle/service/am/applets/general_backend.cpp
@@ -37,7 +37,8 @@ static void LogCurrentStorage(AppletDataBroker& broker, std::string_view prefix)
     }
 }
 
-Auth::Auth(Core::Frontend::ParentalControlsApplet& frontend) : frontend(frontend) {}
+Auth::Auth(Core::System& system_, Core::Frontend::ParentalControlsApplet& frontend_)
+    : Applet{system_.Kernel()}, frontend(frontend_) {}
 
 Auth::~Auth() = default;
 
@@ -151,7 +152,8 @@ void Auth::AuthFinished(bool successful) {
     broker.SignalStateChanged();
 }
 
-PhotoViewer::PhotoViewer(const Core::Frontend::PhotoViewerApplet& frontend) : frontend(frontend) {}
+PhotoViewer::PhotoViewer(Core::System& system_, const Core::Frontend::PhotoViewerApplet& frontend_)
+    : Applet{system_.Kernel()}, frontend(frontend_), system{system_} {}
 
 PhotoViewer::~PhotoViewer() = default;
 
@@ -185,7 +187,7 @@ void PhotoViewer::Execute() {
     const auto callback = [this] { ViewFinished(); };
     switch (mode) {
     case PhotoViewerAppletMode::CurrentApp:
-        frontend.ShowPhotosForApplication(Core::CurrentProcess()->GetTitleID(), callback);
+        frontend.ShowPhotosForApplication(system.CurrentProcess()->GetTitleID(), callback);
         break;
     case PhotoViewerAppletMode::AllApps:
         frontend.ShowAllPhotos(callback);
@@ -200,7 +202,8 @@ void PhotoViewer::ViewFinished() {
     broker.SignalStateChanged();
 }
 
-StubApplet::StubApplet(AppletId id) : id(id) {}
+StubApplet::StubApplet(Core::System& system_, AppletId id_)
+    : Applet{system_.Kernel()}, id(id_), system{system_} {}
 
 StubApplet::~StubApplet() = default;
 
@@ -209,7 +212,7 @@ void StubApplet::Initialize() {
     Applet::Initialize();
 
     const auto data = broker.PeekDataToAppletForDebug();
-    Core::System::GetInstance().GetReporter().SaveUnimplementedAppletReport(
+    system.GetReporter().SaveUnimplementedAppletReport(
         static_cast<u32>(id), common_args.arguments_version, common_args.library_version,
         common_args.theme_color, common_args.play_startup_sound, common_args.system_tick,
         data.normal, data.interactive);
diff --git a/src/core/hle/service/am/applets/general_backend.h b/src/core/hle/service/am/applets/general_backend.h
index 0da252044..cfa2df369 100644
--- a/src/core/hle/service/am/applets/general_backend.h
+++ b/src/core/hle/service/am/applets/general_backend.h
@@ -6,6 +6,10 @@
 
 #include "core/hle/service/am/applets/applets.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::AM::Applets {
 
 enum class AuthAppletType : u32 {
@@ -16,7 +20,7 @@ enum class AuthAppletType : u32 {
 
 class Auth final : public Applet {
 public:
-    explicit Auth(Core::Frontend::ParentalControlsApplet& frontend);
+    explicit Auth(Core::System& system_, Core::Frontend::ParentalControlsApplet& frontend_);
     ~Auth() override;
 
     void Initialize() override;
@@ -45,7 +49,7 @@ enum class PhotoViewerAppletMode : u8 {
 
 class PhotoViewer final : public Applet {
 public:
-    explicit PhotoViewer(const Core::Frontend::PhotoViewerApplet& frontend);
+    explicit PhotoViewer(Core::System& system_, const Core::Frontend::PhotoViewerApplet& frontend_);
     ~PhotoViewer() override;
 
     void Initialize() override;
@@ -60,11 +64,12 @@ private:
     const Core::Frontend::PhotoViewerApplet& frontend;
     bool complete = false;
     PhotoViewerAppletMode mode = PhotoViewerAppletMode::CurrentApp;
+    Core::System& system;
 };
 
 class StubApplet final : public Applet {
 public:
-    explicit StubApplet(AppletId id);
+    explicit StubApplet(Core::System& system_, AppletId id_);
     ~StubApplet() override;
 
     void Initialize() override;
@@ -76,6 +81,7 @@ public:
 
 private:
     AppletId id;
+    Core::System& system;
 };
 
 } // namespace Service::AM::Applets
diff --git a/src/core/hle/service/am/applets/profile_select.cpp b/src/core/hle/service/am/applets/profile_select.cpp
index 57b5419e8..3eba696ca 100644
--- a/src/core/hle/service/am/applets/profile_select.cpp
+++ b/src/core/hle/service/am/applets/profile_select.cpp
@@ -15,8 +15,9 @@ namespace Service::AM::Applets {
 
 constexpr ResultCode ERR_USER_CANCELLED_SELECTION{ErrorModule::Account, 1};
 
-ProfileSelect::ProfileSelect(const Core::Frontend::ProfileSelectApplet& frontend)
-    : frontend(frontend) {}
+ProfileSelect::ProfileSelect(Core::System& system_,
+                             const Core::Frontend::ProfileSelectApplet& frontend_)
+    : Applet{system_.Kernel()}, frontend(frontend_) {}
 
 ProfileSelect::~ProfileSelect() = default;
 
diff --git a/src/core/hle/service/am/applets/profile_select.h b/src/core/hle/service/am/applets/profile_select.h
index 563cd744a..16364ead7 100644
--- a/src/core/hle/service/am/applets/profile_select.h
+++ b/src/core/hle/service/am/applets/profile_select.h
@@ -11,6 +11,10 @@
 #include "core/hle/result.h"
 #include "core/hle/service/am/applets/applets.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::AM::Applets {
 
 struct UserSelectionConfig {
@@ -29,7 +33,8 @@ static_assert(sizeof(UserSelectionOutput) == 0x18, "UserSelectionOutput has inco
 
 class ProfileSelect final : public Applet {
 public:
-    explicit ProfileSelect(const Core::Frontend::ProfileSelectApplet& frontend);
+    explicit ProfileSelect(Core::System& system_,
+                           const Core::Frontend::ProfileSelectApplet& frontend_);
     ~ProfileSelect() override;
 
     void Initialize() override;
diff --git a/src/core/hle/service/am/applets/software_keyboard.cpp b/src/core/hle/service/am/applets/software_keyboard.cpp
index e197990f7..748559cd0 100644
--- a/src/core/hle/service/am/applets/software_keyboard.cpp
+++ b/src/core/hle/service/am/applets/software_keyboard.cpp
@@ -39,8 +39,9 @@ static Core::Frontend::SoftwareKeyboardParameters ConvertToFrontendParameters(
     return params;
 }
 
-SoftwareKeyboard::SoftwareKeyboard(const Core::Frontend::SoftwareKeyboardApplet& frontend)
-    : frontend(frontend) {}
+SoftwareKeyboard::SoftwareKeyboard(Core::System& system_,
+                                   const Core::Frontend::SoftwareKeyboardApplet& frontend_)
+    : Applet{system_.Kernel()}, frontend(frontend_) {}
 
 SoftwareKeyboard::~SoftwareKeyboard() = default;
 
diff --git a/src/core/hle/service/am/applets/software_keyboard.h b/src/core/hle/service/am/applets/software_keyboard.h
index 0fbc43e51..ef4801fc6 100644
--- a/src/core/hle/service/am/applets/software_keyboard.h
+++ b/src/core/hle/service/am/applets/software_keyboard.h
@@ -16,6 +16,10 @@
 
 union ResultCode;
 
+namespace Core {
+class System;
+}
+
 namespace Service::AM::Applets {
 
 enum class KeysetDisable : u32 {
@@ -55,7 +59,8 @@ static_assert(sizeof(KeyboardConfig) == 0x3E0, "KeyboardConfig has incorrect siz
 
 class SoftwareKeyboard final : public Applet {
 public:
-    explicit SoftwareKeyboard(const Core::Frontend::SoftwareKeyboardApplet& frontend);
+    explicit SoftwareKeyboard(Core::System& system_,
+                              const Core::Frontend::SoftwareKeyboardApplet& frontend_);
     ~SoftwareKeyboard() override;
 
     void Initialize() override;
diff --git a/src/core/hle/service/am/applets/web_browser.cpp b/src/core/hle/service/am/applets/web_browser.cpp
index f3c9fef0e..32283e819 100644
--- a/src/core/hle/service/am/applets/web_browser.cpp
+++ b/src/core/hle/service/am/applets/web_browser.cpp
@@ -190,8 +190,9 @@ std::map<WebArgTLVType, std::vector<u8>> GetWebArguments(const std::vector<u8>&
     return out;
 }
 
-FileSys::VirtualFile GetApplicationRomFS(u64 title_id, FileSys::ContentRecordType type) {
-    const auto& installed{Core::System::GetInstance().GetContentProvider()};
+FileSys::VirtualFile GetApplicationRomFS(const Core::System& system, u64 title_id,
+                                         FileSys::ContentRecordType type) {
+    const auto& installed{system.GetContentProvider()};
     const auto res = installed.GetEntry(title_id, type);
 
     if (res != nullptr) {
@@ -207,10 +208,10 @@ FileSys::VirtualFile GetApplicationRomFS(u64 title_id, FileSys::ContentRecordTyp
 
 } // Anonymous namespace
 
-WebBrowser::WebBrowser(Core::Frontend::WebBrowserApplet& frontend, u64 current_process_title_id,
-                       Core::Frontend::ECommerceApplet* frontend_e_commerce)
-    : frontend(frontend), frontend_e_commerce(frontend_e_commerce),
-      current_process_title_id(current_process_title_id) {}
+WebBrowser::WebBrowser(Core::System& system_, Core::Frontend::WebBrowserApplet& frontend_,
+                       Core::Frontend::ECommerceApplet* frontend_e_commerce_)
+    : Applet{system_.Kernel()}, frontend(frontend_),
+      frontend_e_commerce(frontend_e_commerce_), system{system_} {}
 
 WebBrowser::~WebBrowser() = default;
 
@@ -266,7 +267,7 @@ void WebBrowser::UnpackRomFS() {
     ASSERT(offline_romfs != nullptr);
     const auto dir =
         FileSys::ExtractRomFS(offline_romfs, FileSys::RomFSExtractionType::SingleDiscard);
-    const auto& vfs{Core::System::GetInstance().GetFilesystem()};
+    const auto& vfs{system.GetFilesystem()};
     const auto temp_dir = vfs->CreateDirectory(temporary_dir, FileSys::Mode::ReadWrite);
     FileSys::VfsRawCopyD(dir, temp_dir);
 
@@ -470,10 +471,10 @@ void WebBrowser::InitializeOffline() {
     }
 
     if (title_id == 0) {
-        title_id = current_process_title_id;
+        title_id = system.CurrentProcess()->GetTitleID();
     }
 
-    offline_romfs = GetApplicationRomFS(title_id, type);
+    offline_romfs = GetApplicationRomFS(system, title_id, type);
     if (offline_romfs == nullptr) {
         status = ResultCode(-1);
         LOG_ERROR(Service_AM, "Failed to find offline data for request!");
diff --git a/src/core/hle/service/am/applets/web_browser.h b/src/core/hle/service/am/applets/web_browser.h
index 870f57b64..8d4027411 100644
--- a/src/core/hle/service/am/applets/web_browser.h
+++ b/src/core/hle/service/am/applets/web_browser.h
@@ -9,6 +9,10 @@
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applets.h"
 
+namespace Core {
+class System;
+}
+
 namespace Service::AM::Applets {
 
 enum class ShimKind : u32;
@@ -17,8 +21,8 @@ enum class WebArgTLVType : u16;
 
 class WebBrowser final : public Applet {
 public:
-    WebBrowser(Core::Frontend::WebBrowserApplet& frontend, u64 current_process_title_id,
-               Core::Frontend::ECommerceApplet* frontend_e_commerce = nullptr);
+    WebBrowser(Core::System& system_, Core::Frontend::WebBrowserApplet& frontend_,
+               Core::Frontend::ECommerceApplet* frontend_e_commerce_ = nullptr);
 
     ~WebBrowser() override;
 
@@ -59,8 +63,6 @@ private:
     bool unpacked = false;
     ResultCode status = RESULT_SUCCESS;
 
-    u64 current_process_title_id;
-
     ShimKind kind;
     std::map<WebArgTLVType, std::vector<u8>> args;
 
@@ -74,6 +76,8 @@ private:
     std::optional<u128> user_id;
     std::optional<bool> shop_full_display;
     std::string shop_extra_parameter;
+
+    Core::System& system;
 };
 
 } // namespace Service::AM::Applets