Inital pass of account backend implementation

This commit verified working on puyo

src/core/hle/service/acc/acc.cpp

@@ -48,13 +48,6 @@ private:
         LOG_INFO(Service_ACC, "called user_id={}", user_id.Format());
         ProfileBase profile_base{};
         std::array<u8, MAX_DATA> data{};
-        /*if (Settings::values.username.size() > profile_base.username.size()) {
-            std::copy_n(Settings::values.username.begin(), profile_base.username.size(),
-                        profile_base.username.begin());
-        } else {
-            std::copy(Settings::values.username.begin(), Settings::values.username.end(),
-                      profile_base.username.begin());
-        }*/
         if (profile_manager.GetProfileBaseAndData(user_id, profile_base, data)) {
             ctx.WriteBuffer(data);
             IPC::ResponseBuilder rb{ctx, 16};
@@ -177,7 +170,9 @@ void Module::Interface::GetBaasAccountManagerForApplication(Kernel::HLERequestCo
 }
 
 Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
-    : ServiceFramework(name), module(std::move(module)) {}
+    : ServiceFramework(name), module(std::move(module)) {
+    profile_manager = std::make_unique<ProfileManager>();
+}
 
 void InstallInterfaces(SM::ServiceManager& service_manager) {
     auto module = std::make_shared<Module>();

src/core/hle/service/acc/profile_manager.cpp

@@ -1,3 +1,4 @@
+#include "core/settings.h"
 #include "profile_manager.h"
 
 namespace Service::Account {
@@ -5,6 +6,10 @@ namespace Service::Account {
 constexpr ResultCode ERROR_TOO_MANY_USERS(ErrorModule::Account, -1);
 constexpr ResultCode ERROR_ARGUMENT_IS_NULL(ErrorModule::Account, 20);
 
+ProfileManager::ProfileManager() {
+    CreateNewUser(UUID{1, 0}, Settings::values.username);
+}
+
 size_t ProfileManager::AddToProfiles(const ProfileInfo& user) {
     if (user_count >= MAX_USERS) {
         return -1;
@@ -39,14 +44,23 @@ ResultCode ProfileManager::CreateNewUser(UUID uuid, std::array<u8, 0x20> usernam
     if (username[0] == 0x0)
         return ERROR_ARGUMENT_IS_NULL;
     ProfileInfo prof_inf;
-    prof_inf.user_uuid = uuid;
-    prof_inf.username = username;
+    prof_inf.user_uuid = std::move(uuid);
+    prof_inf.username = std::move(username);
     prof_inf.data = std::array<u8, MAX_DATA>();
     prof_inf.creation_time = 0x0;
     prof_inf.is_open = false;
     return AddUser(prof_inf);
 }
 
+ResultCode ProfileManager::CreateNewUser(UUID uuid, std::string username) {
+    std::array<u8, 0x20> username_output;
+    if (username.size() > username_output.size())
+        std::copy_n(username.begin(), username_output.size(), username_output.begin());
+    else
+        std::copy(username.begin(), username.end(), username_output.begin());
+    return CreateNewUser(uuid, std::move(username_output));
+}
+
 size_t ProfileManager::GetUserIndex(UUID uuid) {
     if (!uuid)
         return -1;

src/core/hle/service/acc/profile_manager.h

@@ -21,7 +21,7 @@ struct UUID {
         uuid[1] = hi;
     };
     operator bool() const {
-        return uuid[0] != 0x0 && uuid[1] != 0x0;
+        return uuid[0] != 0x0 || uuid[1] != 0x0;
     }
 
     bool operator==(const UUID& rhs) {
@@ -76,9 +76,10 @@ static_assert(sizeof(ProfileBase) == 0x38, "ProfileBase is an invalid size");
 /// objects
 class ProfileManager {
 public:
-    ProfileManager() = default; // TODO(ogniK): Load from system save
+    ProfileManager(); // TODO(ogniK): Load from system save
     ResultCode AddUser(ProfileInfo user);
     ResultCode CreateNewUser(UUID uuid, std::array<u8, 0x20> username);
+    ResultCode CreateNewUser(UUID uuid, std::string username);
     size_t GetUserIndex(UUID uuid);
     size_t GetUserIndex(ProfileInfo user);
     bool GetProfileBase(size_t index, ProfileBase& profile);