HLE: Remove BaseInterface and add ns.cpp back

src/core/hle/service/apt/ns.cpp

@@ -0,0 +1,33 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cinttypes>
+#include "core/core.h"
+#include "core/hle/service/am/am.h"
+#include "core/hle/service/apt/ns.h"
+#include "core/loader/loader.h"
+
+namespace Service::NS {
+
+Kernel::SharedPtr<Kernel::Process> LaunchTitle(FS::MediaType media_type, u64 title_id) {
+    std::string path = AM::GetTitleContentPath(media_type, title_id);
+    auto loader = Loader::GetLoader(path);
+
+    if (!loader) {
+        LOG_WARNING(Service_NS, "Could not find .app for title 0x{:016x}", title_id);
+        return nullptr;
+    }
+
+    Kernel::SharedPtr<Kernel::Process> process;
+    Loader::ResultStatus result = loader->Load(process);
+
+    if (result != Loader::ResultStatus::Success) {
+        LOG_WARNING(Service_NS, "Error loading .app for title 0x{:016x}", title_id);
+        return nullptr;
+    }
+
+    return process;
+}
+
+} // namespace Service::NS