// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_EXTRAS_SQLITE_SQLITE_PERSISTENT_COOKIE_STORE_H_
#define NET_EXTRAS_SQLITE_SQLITE_PERSISTENT_COOKIE_STORE_H_

#include <list>
#include <string>
#include <utility>
#include <vector>

#include "base/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "net/cookies/cookie_monster.h"

class Task;

namespace base {
class FilePath;
class SequencedTaskRunner;
}  // namespace base

namespace net {
class CanonicalCookie;
class CookieCryptoDelegate;

// Implements the PersistentCookieStore interface in terms of a SQLite database.
// For documentation about the actual member functions consult the documentation
// of the parent class |CookieMonster::PersistentCookieStore|.
class SQLitePersistentCookieStore
    : public CookieMonster::PersistentCookieStore {
 public:
  // Contains the origin and a bool indicating whether or not the
  // origin is secure.
  typedef std::pair<std::string, bool> CookieOrigin;

  // All blocking database accesses will be performed on
  // |background_task_runner|, while |client_task_runner| is used to invoke
  // callbacks.
  SQLitePersistentCookieStore(
      const base::FilePath& path,
      const scoped_refptr<base::SequencedTaskRunner>& client_task_runner,
      const scoped_refptr<base::SequencedTaskRunner>& background_task_runner,
      bool restore_old_session_cookies,
      CookieCryptoDelegate* crypto_delegate);

  // Deletes the cookies whose origins match those given in |cookies|.
  void DeleteAllInList(const std::list<CookieOrigin>& cookies);

  // Closes the database backend and fires |callback| on the worker
  // thread. After Close() is called, further calls to the
  // PersistentCookieStore methods will do nothing, with Load() and
  // LoadCookiesForKey() additionally calling their callback methods
  // with an empty vector of CanonicalCookies.
  void Close(const base::Closure& callback);

  // CookieMonster::PersistentCookieStore:
  void Load(const LoadedCallback& loaded_callback) override;
  void LoadCookiesForKey(const std::string& key,
                         const LoadedCallback& callback) override;
  void AddCookie(const CanonicalCookie& cc) override;
  void UpdateCookieAccessTime(const CanonicalCookie& cc) override;
  void DeleteCookie(const CanonicalCookie& cc) override;
  void SetForceKeepSessionState() override;
  void Flush(const base::Closure& callback) override;

 private:
  ~SQLitePersistentCookieStore() override;

  class Backend;

  scoped_refptr<Backend> backend_;

  DISALLOW_COPY_AND_ASSIGN(SQLitePersistentCookieStore);
};

}  // namespace net

#endif  // NET_EXTRAS_SQLITE_SQLITE_PERSISTENT_COOKIE_STORE_H_