// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/push_messaging/push_messaging_service_factory.h"

#include <memory>

#include "base/functional/bind.h"
#include "base/memory/ptr_util.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/content_settings/host_content_settings_map_factory.h"
#include "chrome/browser/engagement/site_engagement_service_factory.h"
#include "chrome/browser/gcm/gcm_profile_service_factory.h"
#include "chrome/browser/gcm/instance_id/instance_id_profile_service_factory.h"
#include "chrome/browser/permissions/permission_manager_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/push_messaging/push_messaging_service_impl.h"
#include "components/gcm_driver/instance_id/instance_id_profile_service.h"
#include "components/safe_browsing/buildflags.h"

#if BUILDFLAG(SAFE_BROWSING_AVAILABLE)
#include "chrome/browser/safe_browsing/safe_browsing_service.h"
#include "components/safe_browsing/core/common/safe_browsing_prefs.h"
#endif

// static
PushMessagingServiceImpl* PushMessagingServiceFactory::GetForProfile(
    content::BrowserContext* context) {
  // The Push API is not currently supported in incognito mode.
  // See https://crbug.com/41124656.
  if (context->IsOffTheRecord())
    return nullptr;

  return static_cast<PushMessagingServiceImpl*>(
      GetInstance()->GetServiceForBrowserContext(context, true));
}

// static
PushMessagingServiceFactory* PushMessagingServiceFactory::GetInstance() {
  static base::NoDestructor<PushMessagingServiceFactory> instance;
  return instance.get();
}

PushMessagingServiceFactory::PushMessagingServiceFactory()
    : ProfileKeyedServiceFactory(
          "PushMessagingProfileService",
          ProfileSelections::Builder()
              .WithRegular(ProfileSelection::kOwnInstance)
              // TODO(crbug.com/40257657): Check if this service is needed in
              // Guest mode.
              .WithGuest(ProfileSelection::kOwnInstance)
              // TODO(crbug.com/41488885): Check if this service is needed for
              // Ash Internals.
              .WithAshInternals(ProfileSelection::kOwnInstance)
              .Build()) {
  DependsOn(gcm::GCMProfileServiceFactory::GetInstance());
  DependsOn(instance_id::InstanceIDProfileServiceFactory::GetInstance());
  DependsOn(HostContentSettingsMapFactory::GetInstance());
  DependsOn(PermissionManagerFactory::GetInstance());
  DependsOn(site_engagement::SiteEngagementServiceFactory::GetInstance());
}

PushMessagingServiceFactory::~PushMessagingServiceFactory() = default;

void PushMessagingServiceFactory::RestoreFactoryForTests(
    content::BrowserContext* context) {
  SetTestingFactory(
      context, base::BindRepeating([](content::BrowserContext* context) {
        return GetInstance()->BuildServiceInstanceForBrowserContext(context);
      }));
}

std::unique_ptr<KeyedService>
PushMessagingServiceFactory::BuildServiceInstanceForBrowserContext(
    content::BrowserContext* context) const {
  Profile* profile = Profile::FromBrowserContext(context);
  CHECK(!profile->IsOffTheRecord());
  // Reporting service worker network requests should only be done for ESB
  // users. The check below is the first ESB check. A second ESB check is
  // performed before anything about the service worker is sent off device to
  // Safe Browsing. If at the time of the second check the user is found to no
  // longer be an ESB user, no Safe Browsing report will be sent.
  scoped_refptr<safe_browsing::SafeBrowsingDatabaseManager> db_manager;

#if BUILDFLAG(SAFE_BROWSING_AVAILABLE)
  if (g_browser_process && g_browser_process->safe_browsing_service() &&
      safe_browsing::IsEnhancedProtectionEnabled(*profile->GetPrefs())) {
    db_manager = g_browser_process->safe_browsing_service()->database_manager();
  }
#endif  // BUILDFLAG(SAFE_BROWSING_AVAILABLE)

  return std::make_unique<PushMessagingServiceImpl>(profile,
                                                    std::move(db_manager));
}