// 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_COOKIES_COOKIE_STORE_TEST_HELPERS_H_
#define NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_

#include "net/cookies/cookie_monster.h"

#include <string>
#include <vector>

#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/synchronization/lock.h"
#include "net/cookies/cookie_change_dispatcher.h"
#include "net/log/net_log_with_source.h"
#include "testing/gtest/include/gtest/gtest.h"

class GURL;

namespace net {

class DelayedCookieMonsterChangeDispatcher : public CookieChangeDispatcher {
 public:
  DelayedCookieMonsterChangeDispatcher();
  ~DelayedCookieMonsterChangeDispatcher() override;

  // net::CookieChangeDispatcher
  std::unique_ptr<CookieChangeSubscription> AddCallbackForCookie(
      const GURL& url,
      const std::string& name,
      CookieChangeCallback callback) override WARN_UNUSED_RESULT;
  std::unique_ptr<CookieChangeSubscription> AddCallbackForUrl(
      const GURL& url,
      CookieChangeCallback callback) override WARN_UNUSED_RESULT;
  std::unique_ptr<CookieChangeSubscription> AddCallbackForAllChanges(
      CookieChangeCallback callback) override WARN_UNUSED_RESULT;

 private:
  DISALLOW_COPY_AND_ASSIGN(DelayedCookieMonsterChangeDispatcher);
};

class DelayedCookieMonster : public CookieStore {
 public:
  DelayedCookieMonster();

  ~DelayedCookieMonster() override;

  // Call the asynchronous CookieMonster function, expect it to immediately
  // invoke the internal callback.
  // Post a delayed task to invoke the original callback with the results.

  void SetCookieWithOptionsAsync(
      const GURL& url,
      const std::string& cookie_line,
      const CookieOptions& options,
      CookieMonster::SetCookiesCallback callback) override;

  void SetCanonicalCookieAsync(std::unique_ptr<CanonicalCookie> cookie,
                               std::string source_scheme,
                               bool modify_http_only,
                               SetCookiesCallback callback) override;

  void GetCookieListWithOptionsAsync(const GURL& url,
                                     const CookieOptions& options,
                                     GetCookieListCallback callback) override;

  void GetAllCookiesAsync(GetCookieListCallback callback) override;

  virtual bool SetCookieWithOptions(const GURL& url,
                                    const std::string& cookie_line,
                                    const CookieOptions& options);

  void DeleteCanonicalCookieAsync(const CanonicalCookie& cookie,
                                  DeleteCallback callback) override;

  void DeleteAllCreatedInTimeRangeAsync(
      const CookieDeletionInfo::TimeRange& creation_range,
      DeleteCallback callback) override;

  void DeleteAllMatchingInfoAsync(net::CookieDeletionInfo delete_info,
                                  DeleteCallback callback) override;

  void DeleteSessionCookiesAsync(DeleteCallback) override;

  void FlushStore(base::OnceClosure callback) override;

  CookieChangeDispatcher& GetChangeDispatcher() override;

  bool IsEphemeral() override;

 private:
  // Be called immediately from CookieMonster.

  void SetCookiesInternalCallback(
      CanonicalCookie::CookieInclusionStatus result);

  void GetCookiesWithOptionsInternalCallback(const std::string& cookie);
  void GetCookieListWithOptionsInternalCallback(
      const CookieList& cookie,
      const CookieStatusList& excluded_cookies);

  // Invoke the original callbacks.

  void InvokeSetCookiesCallback(CookieMonster::SetCookiesCallback callback);

  void InvokeGetCookieListCallback(
      CookieMonster::GetCookieListCallback callback);

  friend class base::RefCountedThreadSafe<DelayedCookieMonster>;

  std::unique_ptr<CookieMonster> cookie_monster_;
  DelayedCookieMonsterChangeDispatcher change_dispatcher_;

  bool did_run_;
  CanonicalCookie::CookieInclusionStatus result_;
  std::string cookie_;
  std::string cookie_line_;
  CookieList cookie_list_;

  DISALLOW_COPY_AND_ASSIGN(DelayedCookieMonster);
};

class CookieURLHelper {
 public:
  explicit CookieURLHelper(const std::string& url_string);

  const std::string& domain() const { return domain_and_registry_; }
  std::string host() const { return url_.host(); }
  const GURL& url() const { return url_; }
  const GURL AppendPath(const std::string& path) const;

  // Return a new string with the following substitutions:
  // 1. "%R" -> Domain registry (i.e. "com")
  // 2. "%D" -> Domain + registry (i.e. "google.com")
  std::string Format(const std::string& format_string) const;

 private:
  const GURL url_;
  const std::string registry_;
  const std::string domain_and_registry_;
};

// Mock PersistentCookieStore that keeps track of the number of Flush() calls.
class FlushablePersistentStore : public CookieMonster::PersistentCookieStore {
 public:
  FlushablePersistentStore();

  // CookieMonster::PersistentCookieStore implementation:
  void Load(const LoadedCallback& loaded_callback,
            const NetLogWithSource& net_log) override;
  void LoadCookiesForKey(const std::string& key,
                         const LoadedCallback& loaded_callback) override;
  void AddCookie(const CanonicalCookie&) override;
  void UpdateCookieAccessTime(const CanonicalCookie&) override;
  void DeleteCookie(const CanonicalCookie&) override;
  void SetForceKeepSessionState() override;
  void SetBeforeFlushCallback(base::RepeatingClosure callback) override;
  void Flush(base::OnceClosure callback) override;

  int flush_count();

 private:
  ~FlushablePersistentStore() override;

  int flush_count_;
  base::Lock flush_count_lock_;  // Protects |flush_count_|.
};

// Counts the number of times Callback() has been run.
class CallbackCounter : public base::RefCountedThreadSafe<CallbackCounter> {
 public:
  CallbackCounter();
  void Callback();
  int callback_count();

 private:
  friend class base::RefCountedThreadSafe<CallbackCounter>;
  ~CallbackCounter();

  int callback_count_;
  base::Lock callback_count_lock_;  // Protects |callback_count_|.
};

}  // namespace net

#endif  // NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_