/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "FileSystemEntry.h"
#include "CallbackRunnables.h"
#include "FileSystem.h"
#include "FileSystemDirectoryEntry.h"
#include "FileSystemFileEntry.h"
#include "mozilla/dom/FileSystemEntryBinding.h"
#include "mozilla/dom/UnionTypes.h"

namespace mozilla::dom {

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(FileSystemEntry, mParent, mParentEntry,
                                      mFileSystem)

NS_IMPL_CYCLE_COLLECTING_ADDREF(FileSystemEntry)
NS_IMPL_CYCLE_COLLECTING_RELEASE(FileSystemEntry)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FileSystemEntry)
  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END

/* static */
already_AddRefed<FileSystemEntry> FileSystemEntry::Create(
    nsIGlobalObject* aGlobalObject,
    const OwningFileOrDirectory& aFileOrDirectory, FileSystem* aFileSystem) {
  MOZ_ASSERT(aGlobalObject);
  MOZ_ASSERT(aFileSystem);

  RefPtr<FileSystemEntry> entry;
  if (aFileOrDirectory.IsFile()) {
    entry = new FileSystemFileEntry(aGlobalObject, aFileOrDirectory.GetAsFile(),
                                    nullptr, aFileSystem);
  } else {
    MOZ_ASSERT(aFileOrDirectory.IsDirectory());
    entry = new FileSystemDirectoryEntry(
        aGlobalObject, aFileOrDirectory.GetAsDirectory(), nullptr, aFileSystem);
  }

  return entry.forget();
}

FileSystemEntry::FileSystemEntry(nsIGlobalObject* aGlobal,
                                 FileSystemEntry* aParentEntry,
                                 FileSystem* aFileSystem)
    : mParent(aGlobal), mParentEntry(aParentEntry), mFileSystem(aFileSystem) {
  MOZ_ASSERT(aGlobal);
  MOZ_ASSERT(aFileSystem);
}

FileSystemEntry::~FileSystemEntry() = default;

JSObject* FileSystemEntry::WrapObject(JSContext* aCx,
                                      JS::Handle<JSObject*> aGivenProto) {
  return FileSystemEntry_Binding::Wrap(aCx, this, aGivenProto);
}

void FileSystemEntry::GetParent(
    const Optional<OwningNonNull<FileSystemEntryCallback>>& aSuccessCallback,
    const Optional<OwningNonNull<ErrorCallback>>& aErrorCallback) {
  if (!aSuccessCallback.WasPassed() && !aErrorCallback.WasPassed()) {
    return;
  }

  if (mParentEntry) {
    FileSystemEntryCallbackHelper::Call(GetParentObject(), aSuccessCallback,
                                        mParentEntry);
    return;
  }

  FileSystemEntryCallbackHelper::Call(GetParentObject(), aSuccessCallback,
                                      this);
}

}  // namespace mozilla::dom