4 files changed, 107 insertions, 0 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 582c15f7e..eee8e2ccd 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -479,6 +479,8 @@ add_library(core STATIC
     hle/service/ns/language.h
     hle/service/ns/ns.cpp
     hle/service/ns/ns.h
+    hle/service/ns/pdm_qry.cpp
+    hle/service/ns/pdm_qry.h
     hle/service/ns/pl_u.cpp
     hle/service/ns/pl_u.h
     hle/service/nvdrv/devices/nvdevice.h
diff --git a/src/core/hle/service/ns/ns.cpp b/src/core/hle/service/ns/ns.cpp
index 64ffc8572..0d6fab746 100644
--- a/src/core/hle/service/ns/ns.cpp
+++ b/src/core/hle/service/ns/ns.cpp
@@ -12,6 +12,7 @@
 #include "core/hle/service/ns/errors.h"
 #include "core/hle/service/ns/language.h"
 #include "core/hle/service/ns/ns.h"
+#include "core/hle/service/ns/pdm_qry.h"
 #include "core/hle/service/ns/pl_u.h"
 #include "core/hle/service/set/set.h"
 
@@ -738,6 +739,8 @@ void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system
     std::make_shared<NS_SU>(system)->InstallAsService(service_manager);
     std::make_shared<NS_VM>(system)->InstallAsService(service_manager);
 
+    std::make_shared<PDM_QRY>(system)->InstallAsService(service_manager);
+
     std::make_shared<PL_U>(system)->InstallAsService(service_manager);
 }
 
diff --git a/src/core/hle/service/ns/pdm_qry.cpp b/src/core/hle/service/ns/pdm_qry.cpp
new file mode 100644
index 000000000..e2fab5c3f
--- /dev/null
+++ b/src/core/hle/service/ns/pdm_qry.cpp
@@ -0,0 +1,69 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <memory>
+
+#include "common/logging/log.h"
+#include "common/uuid.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/service/ns/pdm_qry.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::NS {
+
+PDM_QRY::PDM_QRY(Core::System& system_) : ServiceFramework{system_, "pdm:qry"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "QueryAppletEvent"},
+            {1, nullptr, "QueryPlayStatistics"},
+            {2, nullptr, "QueryPlayStatisticsByUserAccountId"},
+            {3, nullptr, "QueryPlayStatisticsByNetworkServiceAccountId"},
+            {4, nullptr, "QueryPlayStatisticsByApplicationId"},
+            {5, &PDM_QRY::QueryPlayStatisticsByApplicationIdAndUserAccountId, "QueryPlayStatisticsByApplicationIdAndUserAccountId"},
+            {6, nullptr, "QueryPlayStatisticsByApplicationIdAndNetworkServiceAccountId"},
+            {7, nullptr, "QueryLastPlayTimeV0"},
+            {8, nullptr, "QueryPlayEvent"},
+            {9, nullptr, "GetAvailablePlayEventRange"},
+            {10, nullptr, "QueryAccountEvent"},
+            {11, nullptr, "QueryAccountPlayEvent"},
+            {12, nullptr, "GetAvailableAccountPlayEventRange"},
+            {13, nullptr, "QueryApplicationPlayStatisticsForSystemV0"},
+            {14, nullptr, "QueryRecentlyPlayedApplication"},
+            {15, nullptr, "GetRecentlyPlayedApplicationUpdateEvent"},
+            {16, nullptr, "QueryApplicationPlayStatisticsByUserAccountIdForSystemV0"},
+            {17, nullptr, "QueryLastPlayTime"},
+            {18, nullptr, "QueryApplicationPlayStatisticsForSystem"},
+            {19, nullptr, "QueryApplicationPlayStatisticsByUserAccountIdForSystem"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+PDM_QRY::~PDM_QRY() = default;
+
+void PDM_QRY::QueryPlayStatisticsByApplicationIdAndUserAccountId(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto unknown = rp.Pop<bool>();
+    rp.Pop<u8>(); // Padding
+    const auto application_id = rp.Pop<u64>();
+    const auto user_account_uid = rp.PopRaw<Common::UUID>();
+
+    // TODO(German77): Read statistics of the game
+    PlayStatistics statistics{
+        .application_id = application_id,
+        .total_launches = 1,
+    };
+
+    LOG_WARNING(Service_NS,
+                "(STUBBED) called. unknown={}. application_id=0x{:016X}, user_account_uid=0x{}",
+                unknown, application_id, user_account_uid.Format());
+
+    IPC::ResponseBuilder rb{ctx, 12};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(statistics);
+}
+
+} // namespace Service::NS
diff --git a/src/core/hle/service/ns/pdm_qry.h b/src/core/hle/service/ns/pdm_qry.h
new file mode 100644
index 000000000..516136314
--- /dev/null
+++ b/src/core/hle/service/ns/pdm_qry.h
@@ -0,0 +1,33 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::NS {
+
+struct PlayStatistics {
+    u64 application_id{};
+    u32 first_entry_index{};
+    u32 first_timestamp_user{};
+    u32 first_timestamp_network{};
+    u32 last_entry_index{};
+    u32 last_timestamp_user{};
+    u32 last_timestamp_network{};
+    u32 play_time_in_minutes{};
+    u32 total_launches{};
+};
+static_assert(sizeof(PlayStatistics) == 0x28, "PlayStatistics is an invalid size");
+
+class PDM_QRY final : public ServiceFramework<PDM_QRY> {
+public:
+    explicit PDM_QRY(Core::System& system_);
+    ~PDM_QRY() override;
+
+private:
+    void QueryPlayStatisticsByApplicationIdAndUserAccountId(Kernel::HLERequestContext& ctx);
+};
+
+} // namespace Service::NS