/* -*- 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/. */

#ifndef mozilla_dom_indexeddb_filemanager_h__

#define mozilla_dom_indexeddb_filemanager_h__

#include "mozilla/Attributes.h"

#include "mozilla/dom/quota/PersistenceType.h"

#include "nsDataHashtable.h"

#include "nsHashKeys.h"

#include "nsISupportsImpl.h"

class nsIFile;

class mozIStorageConnection;

namespace mozilla {

namespace dom {

namespace indexedDB {

class FileInfo;

// Implemented in ActorsParent.cpp.

class FileManager final

{

  friend class FileInfo;

  typedef mozilla::dom::quota::PersistenceType PersistenceType;

  PersistenceType mPersistenceType;

  nsCString mGroup;

  nsCString mOrigin;

  nsString mDatabaseName;

  nsString mDirectoryPath;

  nsString mJournalDirectoryPath;

  int64_t mLastFileId;

  // Protected by IndexedDatabaseManager::FileMutex()

  nsDataHashtable<nsUint64HashKey, FileInfo*> mFileInfos;

  const bool mEnforcingQuota;

  bool mInvalidated;

public:

  static already_AddRefed<nsIFile>

  GetFileForId(nsIFile* aDirectory, int64_t aId);

  static already_AddRefed<nsIFile>

  GetCheckedFileForId(nsIFile* aDirectory, int64_t aId);

  static nsresult

  InitDirectory(nsIFile* aDirectory,

                nsIFile* aDatabaseFile,

                PersistenceType aPersistenceType,

                const nsACString& aGroup,

                const nsACString& aOrigin,

                uint32_t aTelemetryId);

  static nsresult

  GetUsage(nsIFile* aDirectory, uint64_t* aUsage);

  FileManager(PersistenceType aPersistenceType,

              const nsACString& aGroup,

              const nsACString& aOrigin,

              const nsAString& aDatabaseName,

              bool aEnforcingQuota);

  PersistenceType

  Type() const

  {

    return mPersistenceType;

  }

  const nsACString&

  Group() const

  {

    return mGroup;

  }

  const nsACString&

  Origin() const

  {

    return mOrigin;

  }

  const nsAString&

  DatabaseName() const

  {

    return mDatabaseName;

  }

  bool

  EnforcingQuota() const

  {

    return mEnforcingQuota;

  }

  bool

  Invalidated() const

  {

    return mInvalidated;

  }

  nsresult

  Init(nsIFile* aDirectory, mozIStorageConnection* aConnection);

  nsresult

  Invalidate();

  already_AddRefed<nsIFile>

  GetDirectory();

  already_AddRefed<nsIFile>

  GetCheckedDirectory();

  already_AddRefed<nsIFile>

  GetJournalDirectory();

  already_AddRefed<nsIFile>

  EnsureJournalDirectory();

  already_AddRefed<FileInfo>

  GetFileInfo(int64_t aId);

  already_AddRefed<FileInfo>

  GetNewFileInfo();

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileManager)

private:

  ~FileManager() = default;

};

} // namespace indexedDB

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_indexeddb_filemanager_h__