// Copyright 2018 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/web_applications/web_app_provider.h"

#include <map>
#include <memory>
#include <optional>
#include <ostream>
#include <utility>

#include "base/check.h"
#include "base/functional/bind.h"
#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/functional/concurrent_closures.h"
#include "base/location.h"
#include "base/memory/scoped_refptr.h"
#include "base/metrics/histogram_functions.h"
#include "base/rand_util.h"
#include "base/run_loop.h"
#include "base/time/clock.h"
#include "base/time/default_clock.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/web_applications/commands/fetch_manifest_and_update_result.h"
#include "chrome/browser/web_applications/commands/web_app_command.h"
#include "chrome/browser/web_applications/extensions_manager.h"
#include "chrome/browser/web_applications/externally_managed_app_manager.h"
#include "chrome/browser/web_applications/file_utils_wrapper.h"
#include "chrome/browser/web_applications/generated_icon_fix_manager.h"
#include "chrome/browser/web_applications/isolated_web_apps/install/isolated_web_app_installation_manager.h"
#include "chrome/browser/web_applications/isolated_web_apps/update/isolated_web_app_update_manager.h"
#include "chrome/browser/web_applications/manifest_update_manager.h"
#include "chrome/browser/web_applications/navigation_capturing_log.h"
#include "chrome/browser/web_applications/os_integration/os_integration_manager.h"
#include "chrome/browser/web_applications/os_integration/web_app_file_handler_manager.h"
#include "chrome/browser/web_applications/os_integration/web_app_protocol_handler_manager.h"
#include "chrome/browser/web_applications/policy/web_app_policy_manager.h"
#include "chrome/browser/web_applications/preinstalled_web_app_manager.h"
#include "chrome/browser/web_applications/visited_manifest_manager.h"
#include "chrome/browser/web_applications/web_app.h"
#include "chrome/browser/web_applications/web_app_audio_focus_id_map.h"
#include "chrome/browser/web_applications/web_app_command_manager.h"
#include "chrome/browser/web_applications/web_app_command_scheduler.h"
#include "chrome/browser/web_applications/web_app_database_factory.h"
#include "chrome/browser/web_applications/web_app_filter.h"
#include "chrome/browser/web_applications/web_app_helpers.h"
#include "chrome/browser/web_applications/web_app_icon_manager.h"
#include "chrome/browser/web_applications/web_app_install_finalizer.h"
#include "chrome/browser/web_applications/web_app_install_manager.h"
#include "chrome/browser/web_applications/web_app_origin_association_manager.h"
#include "chrome/browser/web_applications/web_app_pref_guardrails.h"
#include "chrome/browser/web_applications/web_app_profile_deletion_manager.h"
#include "chrome/browser/web_applications/web_app_provider_factory.h"
#include "chrome/browser/web_applications/web_app_registrar.h"
#include "chrome/browser/web_applications/web_app_sync_bridge.h"
#include "chrome/browser/web_applications/web_app_translation_manager.h"
#include "chrome/browser/web_applications/web_app_ui_manager.h"
#include "chrome/browser/web_applications/web_app_utils.h"
#include "chrome/browser/web_applications/web_contents/web_contents_manager.h"
#include "chrome/common/chrome_features.h"
#include "components/prefs/pref_service.h"
#include "components/webapps/common/manifest_id_constants.h"
#include "components/webapps/common/web_app_id.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_contents.h"

#if BUILDFLAG(IS_CHROMEOS)
#include "ash/constants/ash_features.h"
#include "chrome/browser/web_applications/ash/migrations/adobe_express_oem_to_default_migration.h"
#include "chrome/browser/web_applications/isolated_web_apps/policy/isolated_web_app_cache_manager.h"
#include "chrome/browser/web_applications/isolated_web_apps/policy/isolated_web_app_policy_manager.h"
#include "chrome/browser/web_applications/web_app_run_on_os_login_manager.h"
#include "chromeos/ash/components/browser_context_helper/browser_context_types.h"
#endif

#if BUILDFLAG(IS_MAC)
#include "base/feature_list.h"
#include "base/mac/mac_util.h"
#include "base/metrics/histogram_functions.h"
#include "chrome/browser/web_applications/commands/rewrite_diy_icons_command.h"
#include "chrome/browser/web_applications/os_integration/mac/apps_folder_support.h"
#include "chrome/browser/web_applications/os_integration/mac/web_app_shortcut_creator.h"
#include "chrome/browser/web_applications/os_integration/web_app_shortcut.h"
#include "chrome/browser/web_applications/web_app_registry_update.h"
#endif
namespace webapps {
enum class WebappInstallSource;
}

namespace web_app {

#if BUILDFLAG(IS_MAC)
BASE_FEATURE(kDiyAppIconsMaskedOnMacUpdate, base::FEATURE_ENABLED_BY_DEFAULT);
#endif

// static
WebAppProvider* WebAppProvider::GetDeprecated(Profile* profile) {
  return WebAppProviderFactory::GetForProfile(profile);
}

// static
WebAppProvider* WebAppProvider::GetForWebApps(Profile* profile) {
  return WebAppProviderFactory::GetForProfile(profile);
}

// static
WebAppProvider* WebAppProvider::GetForLocalAppsUnchecked(Profile* profile) {
  return WebAppProviderFactory::GetForProfile(profile);
}

// static
WebAppProvider* WebAppProvider::GetForTest(Profile* profile) {
  // Running a nested base::RunLoop outside of tests causes a deadlock. Crash
  // immediately instead of deadlocking for easier debugging (especially for
  // TAST tests which use prod binaries).
  WebAppProvider* provider = GetForLocalAppsUnchecked(profile);
  if (!provider) {
    return nullptr;
  }

  if (provider->on_registry_ready().is_signaled()) {
    return provider;
  }

  base::RunLoop run_loop;
  provider->on_registry_ready().Post(FROM_HERE, run_loop.QuitClosure());
  run_loop.Run();
  return provider;
}

// static
WebAppProvider* WebAppProvider::GetForWebContents(
    content::WebContents* web_contents) {
  Profile* profile =
      Profile::FromBrowserContext(web_contents->GetBrowserContext());
  DCHECK(profile);
  return WebAppProvider::GetForLocalAppsUnchecked(profile);
}

WebAppProvider::WebAppProvider(Profile* profile)
    : clock_(base::DefaultClock::GetInstance()), profile_(profile) {
  DCHECK(AreWebAppsEnabled(profile_));

  // WebApp System must have only one instance in original profile.
  // Exclude secondary off-the-record profiles.
#if BUILDFLAG(IS_CHROMEOS)
  if (!profile_->IsGuestSession()) {
    DCHECK(!profile_->IsOffTheRecord());
  }
#else
  DCHECK(!profile_->IsOffTheRecord());
#endif

  CreateSubsystems(profile_);
}

WebAppProvider::~WebAppProvider() = default;

void WebAppProvider::Start() {
  CHECK(!started_);

  ConnectSubsystems();
  started_ = true;

  StartImpl();
}

WebAppCommandScheduler& WebAppProvider::scheduler() {
  return *command_scheduler_;
}

WebAppCommandManager& WebAppProvider::command_manager() {
  // Note: It is OK to access the command manager before connection or start.
  // Internally it will queue commands to only happen after it has started.
  return *command_manager_;
}

WebAppRegistrar& WebAppProvider::registrar_unsafe() {
  CheckIsConnected();
  return *registrar_;
}

const WebAppRegistrar& WebAppProvider::registrar_unsafe() const {
  CheckIsConnected();
  return *registrar_;
}

WebAppRegistrarMutable& WebAppProvider::registrar_mutable(
    base::PassKey<WebAppSyncBridge>) {
  CheckIsConnected();
  return *registrar_;
}

WebAppSyncBridge& WebAppProvider::sync_bridge_unsafe() {
  CheckIsConnected();
  return *sync_bridge_;
}

WebAppInstallManager& WebAppProvider::install_manager() {
  CheckIsConnected();
  return *install_manager_;
}

WebAppInstallFinalizer& WebAppProvider::install_finalizer() {
  CheckIsConnected();
  return *install_finalizer_;
}

ManifestUpdateManager& WebAppProvider::manifest_update_manager() {
  CheckIsConnected();
  return *manifest_update_manager_;
}

ExternallyManagedAppManager& WebAppProvider::externally_managed_app_manager() {
  CheckIsConnected();
  return *externally_managed_app_manager_;
}

WebAppPolicyManager& WebAppProvider::policy_manager() {
  CheckIsConnected();
  return *web_app_policy_manager_;
}

IsolatedWebAppInstallationManager&
WebAppProvider::isolated_web_app_installation_manager() {
  CheckIsConnected();
  return *isolated_web_app_installation_manager_;
}

IsolatedWebAppUpdateManager& WebAppProvider::iwa_update_manager() {
  CheckIsConnected();
  return *iwa_update_manager_;
}

#if BUILDFLAG(IS_CHROMEOS)
WebAppRunOnOsLoginManager& WebAppProvider::run_on_os_login_manager() {
  CheckIsConnected();
  return *web_app_run_on_os_login_manager_;
}

IwaBundleCacheManager& WebAppProvider::iwa_cache_manager() {
  CheckIsConnected();
  return *iwa_cache_manager_;
}
#endif

IsolatedWebAppPolicyManager& WebAppProvider::iwa_policy_manager() {
  CheckIsConnected();
  return *isolated_web_app_policy_manager_;
}

WebAppUiManager& WebAppProvider::ui_manager() {
  CheckIsConnected();
  return *ui_manager_;
}

WebAppAudioFocusIdMap& WebAppProvider::audio_focus_id_map() {
  CheckIsConnected();
  return *audio_focus_id_map_;
}

scoped_refptr<FileUtilsWrapper> WebAppProvider::file_utils() {
  CheckIsConnected();
  return file_utils_;
}

WebAppIconManager& WebAppProvider::icon_manager() {
  CheckIsConnected();
  return *icon_manager_;
}

WebAppTranslationManager& WebAppProvider::translation_manager() {
  CheckIsConnected();
  return *translation_manager_;
}

OsIntegrationManager& WebAppProvider::os_integration_manager() {
  CheckIsConnected();
  return *os_integration_manager_;
}

const OsIntegrationManager& WebAppProvider::os_integration_manager() const {
  CheckIsConnected();
  return *os_integration_manager_;
}

WebAppOriginAssociationManager& WebAppProvider::origin_association_manager() {
  return *origin_association_manager_;
}

WebContentsManager& WebAppProvider::web_contents_manager() {
  return *web_contents_manager_;
}

PreinstalledWebAppManager& WebAppProvider::preinstalled_web_app_manager() {
  return *preinstalled_web_app_manager_;
}

ExtensionsManager& WebAppProvider::extensions_manager() {
  return *extensions_manager_;
}

GeneratedIconFixManager& WebAppProvider::generated_icon_fix_manager() {
  return *generated_icon_fix_manager_;
}

AbstractWebAppDatabaseFactory& WebAppProvider::database_factory() {
  return *database_factory_;
}

VisitedManifestManager& WebAppProvider::visited_manifest_manager() {
  CheckIsConnected();
  return *visited_manifest_manager_;
}

NavigationCapturingLog& WebAppProvider::navigation_capturing_log() {
  CheckIsConnected();
  return *navigation_capturing_log_;
}

base::Clock& WebAppProvider::clock() {
  return *clock_;
}

void WebAppProvider::SetClockForTesting(base::Clock* clock) {
  clock_ = clock;
}

void WebAppProvider::Shutdown() {
  command_scheduler_->Shutdown();
  // The `command_manager_` has already shut down at this point if the profile
  // was managed by a ProfileManager that was being destroyed, but this still
  // happens here because:
  // 1. One shutdown is enough, duplicate shut downs do not affect the working
  // of the `command_manager_`.
  // 2. Sometimes a profile is used without a `ProfileManager` (like in some
  // tests). In those cases, the `command_manager_` needs to be explicitly
  // shutdown.
  command_manager_->Shutdown();
  ui_manager_->Shutdown();
  externally_managed_app_manager_->Shutdown();
  manifest_update_manager_->Shutdown();
  iwa_update_manager_->Shutdown();
  install_manager_->Shutdown();
  web_app_policy_manager_->Shutdown();
  icon_manager_->Shutdown();
  install_finalizer_->Shutdown();
  profile_deletion_manager_->Shutdown();
  is_registry_ready_ = false;
}

base::WeakPtr<WebAppProvider> WebAppProvider::AsWeakPtr() {
  return weak_ptr_factory_.GetWeakPtr();
}

FakeWebAppProvider* WebAppProvider::AsFakeWebAppProviderForTesting() {
  return nullptr;
}

base::RepeatingClosure
WebAppProvider::DisableDelayedPostStartupWorkForTesting() {
  CHECK(!started_);
  prevent_delayed_startup_tasks_for_testing_ = true;
  return base::BindRepeating(&WebAppProvider::DoDelayedPostStartupWork,
                             weak_ptr_factory_.GetWeakPtr());
}

void WebAppProvider::StartImpl() {
  StartSyncBridge();
}

void WebAppProvider::CreateSubsystems(Profile* profile) {
  audio_focus_id_map_ = std::make_unique<WebAppAudioFocusIdMap>();
  ui_manager_ = WebAppUiManager::Create(profile);
  install_manager_ = std::make_unique<WebAppInstallManager>(profile);
  manifest_update_manager_ = std::make_unique<ManifestUpdateManager>();
  externally_managed_app_manager_ =
      std::make_unique<ExternallyManagedAppManager>(profile);
  preinstalled_web_app_manager_ =
      std::make_unique<PreinstalledWebAppManager>(profile);
  web_app_policy_manager_ = std::make_unique<WebAppPolicyManager>(profile);
  isolated_web_app_installation_manager_ =
      std::make_unique<IsolatedWebAppInstallationManager>(*profile);
  iwa_update_manager_ = std::make_unique<IsolatedWebAppUpdateManager>(*profile);
  isolated_web_app_policy_manager_ =
      std::make_unique<IsolatedWebAppPolicyManager>(profile);
  extensions_manager_ = ExtensionsManager::CreateForProfile(profile);
  generated_icon_fix_manager_ = std::make_unique<GeneratedIconFixManager>();

  database_factory_ = std::make_unique<WebAppDatabaseFactory>(profile);

  registrar_ = std::make_unique<WebAppRegistrarMutable>(profile);
  sync_bridge_ = std::make_unique<WebAppSyncBridge>(registrar_.get());

  file_utils_ = base::MakeRefCounted<FileUtilsWrapper>();

  icon_manager_ = std::make_unique<WebAppIconManager>(profile);
  translation_manager_ = std::make_unique<WebAppTranslationManager>(profile);
  install_finalizer_ = std::make_unique<WebAppInstallFinalizer>(profile);

  auto file_handler_manager =
      std::make_unique<WebAppFileHandlerManager>(profile);
  auto protocol_handler_manager =
      std::make_unique<WebAppProtocolHandlerManager>(profile);

  os_integration_manager_ = std::make_unique<OsIntegrationManager>(
      profile, std::move(file_handler_manager),
      std::move(protocol_handler_manager));

  command_manager_ = std::make_unique<WebAppCommandManager>(profile);
  command_scheduler_ = std::make_unique<WebAppCommandScheduler>(*profile);

  origin_association_manager_ =
      std::make_unique<WebAppOriginAssociationManager>();

#if BUILDFLAG(IS_CHROMEOS)
  web_app_run_on_os_login_manager_ =
      std::make_unique<WebAppRunOnOsLoginManager>(profile);
  iwa_cache_manager_ = std::make_unique<IwaBundleCacheManager>(*profile);
#endif

  web_contents_manager_ = std::make_unique<WebContentsManager>();
  visited_manifest_manager_ = std::make_unique<VisitedManifestManager>();
  navigation_capturing_log_ = std::make_unique<NavigationCapturingLog>();
  profile_deletion_manager_ =
      std::make_unique<WebAppProfileDeletionManager>(profile);
}

void WebAppProvider::ConnectSubsystems() {
  DCHECK(!started_);

  base::PassKey<WebAppProvider> pass_key;
  sync_bridge_->SetProvider(pass_key, *this);
  icon_manager_->SetProvider(pass_key, *this);
  install_finalizer_->SetProvider(pass_key, *this);
  manifest_update_manager_->SetProvider(pass_key, *this);
  externally_managed_app_manager_->SetProvider(pass_key, *this);
  preinstalled_web_app_manager_->SetProvider(pass_key, *this);
  web_app_policy_manager_->SetProvider(pass_key, *this);
  registrar_->SetProvider(pass_key, *this);
  os_integration_manager_->SetProvider(pass_key, *this);
  command_manager_->SetProvider(pass_key, *this);
  command_scheduler_->SetProvider(pass_key, *this);
  isolated_web_app_installation_manager_->SetProvider(pass_key, *this);
  iwa_update_manager_->SetProvider(pass_key, *this);
  isolated_web_app_policy_manager_->SetProvider(pass_key, *this);
#if BUILDFLAG(IS_CHROMEOS)
  web_app_run_on_os_login_manager_->SetProvider(pass_key, *this);
  iwa_cache_manager_->SetProvider(pass_key, *this);
#endif
  icon_manager_->SetProvider(pass_key, *this);
  translation_manager_->SetProvider(pass_key, *this);
  generated_icon_fix_manager_->SetProvider(pass_key, *this);
  profile_deletion_manager_->SetProvider(pass_key, *this);

  connected_ = true;
}

void WebAppProvider::StartSyncBridge() {
  sync_bridge_->Init(
      base::BindOnce(&WebAppProvider::OnSyncBridgeReady, AsWeakPtr()));
}

void WebAppProvider::OnSyncBridgeReady() {
  DCHECK(!on_registry_ready_.is_signaled());

  // Perform database migrations once the sync bridge is ready, but before
  // starting the rest of the subsystems and notifying that the registry is
  // ready.
#if BUILDFLAG(IS_CHROMEOS)
  web_app::migrations::MigrateAdobeExpressFromOemInstallToDefault(
      sync_bridge_.get());
#endif  // BUILDFLAG(IS_CHROMEOS)

  base::ConcurrentClosures concurrent;

  base::OnceClosure on_web_app_policy_manager_done_callback =
#if BUILDFLAG(IS_CHROMEOS)
      base::BindOnce(&WebAppRunOnOsLoginManager::Start,
                     web_app_run_on_os_login_manager_->GetWeakPtr())
          .Then(concurrent.CreateClosure());
#else
      concurrent.CreateClosure();
#endif  // BUILDFLAG(IS_CHROMEOS)

  registrar_->Start();
  install_finalizer_->Start();
  icon_manager_->Start();
  translation_manager_->Start();
  install_manager_->Start();
  preinstalled_web_app_manager_->Start(concurrent.CreateClosure());
  web_app_policy_manager_->Start(
      std::move(on_web_app_policy_manager_done_callback));
  isolated_web_app_installation_manager_->Start();
  iwa_update_manager_->Start();
  isolated_web_app_policy_manager_->Start(concurrent.CreateClosure());
  manifest_update_manager_->Start();
  os_integration_manager_->Start();
  ui_manager_->Start();
  generated_icon_fix_manager_->Start();
  command_manager_->Start();
  profile_deletion_manager_->Start();

#if BUILDFLAG(IS_CHROMEOS)
  iwa_cache_manager_->Start();
#endif  // BUILDFLAG(IS_CHROMEOS)

  // Note: This does not wait for the call from the ChromeOS
  // SystemWebAppManager, which is a separate keyed service.
  std::move(concurrent)
      .Done(base::BindOnce(
          [](base::WeakPtr<WebAppProvider> provider) {
            if (!provider) {
              return;
            }
            provider->on_external_managers_synchronized_.Signal();
          },
          AsWeakPtr()));

  on_registry_ready_.Signal();
  is_registry_ready_ = true;

  if (prevent_delayed_startup_tasks_for_testing_) {  // IN-TEST
    return;                                          // IN-TEST
  }
  content::GetUIThreadTaskRunner({base::TaskPriority::BEST_EFFORT})
      ->PostDelayedTask(
          FROM_HERE,
          base::BindOnce(&WebAppProvider::DoDelayedPostStartupWork,
                         AsWeakPtr()),
          base::RandTimeDeltaUpTo(base::Minutes(20)));
}

void WebAppProvider::CheckIsConnected() const {
  DCHECK(connected_) << "Attempted to access Web App subsystem while "
                        "WebAppProvider is not connected. You may need to wait "
                        "for on_registry_ready().";
}

void WebAppProvider::DoDelayedPostStartupWork() {
  WebAppPrefGuardrails guardrails =
      WebAppPrefGuardrails::GetForDefaultAppUpdateOnStartup(
          *profile_->GetPrefs());

  const std::optional<PreinstalledAppForUpdating>& app_to_update =
      preinstalled_web_app_manager().preinstalled_app_for_updating();
  webapps::AppId preinstalled_app_id = GenerateAppIdFromManifestId(
      app_to_update.value_or(PreinstalledAppForUpdating()).manifest_id);
  if (base::FeatureList::IsEnabled(features::kWebAppPeriodicPreinstallUpdate) &&
      app_to_update.has_value() &&
      !guardrails.IsBlockedByGuardrails(preinstalled_app_id)) {
    GURL::Replacements add_query;
    add_query.SetQueryStr("usp=chrome_preinstall_update");
    GURL install_url = app_to_update->install_url.ReplaceComponents(add_query);
    // The unsafe registrar is checked to prevent wasting resources loading the
    // install_url. If the app isn't installed, do not bother.
    if (registrar_unsafe().AppMatches(preinstalled_app_id,
                                      WebAppFilter::InstalledInChrome())) {
      scheduler().FetchManifestAndUpdate(
          install_url, app_to_update->manifest_id,
          base::BindOnce(&WebAppProvider::OnDefaultAppUpdateComplete,
                         weak_ptr_factory_.GetWeakPtr(), preinstalled_app_id));
    }
  }
#if BUILDFLAG(IS_MAC)
  if (base::FeatureList::IsEnabled(kDiyAppIconsMaskedOnMacUpdate)) {
    const WebAppRegistrar& registrar = registrar_unsafe();

    for (const auto& app : registrar.GetApps()) {
      // Skip apps that don't match our criteria
      if (!registrar.AppMatches(app.app_id(),
                                WebAppFilter::IsDiyWithOsShortcut())) {
        continue;
      }

      // Skip apps that are already masked
      if (registrar.IsDiyAppIconsMarkedMaskedOnMac(app.app_id())) {
        continue;
      }

      // Skip apps with open windows
      if (ui_manager_->GetNumWindowsForApp(app.app_id()) != 0) {
        continue;
      }

      // Schedule the command for eligible apps
      scheduler().RewriteDiyIcons(app.app_id(), base::DoNothing());
    }
  }
#endif
}

void WebAppProvider::OnDefaultAppUpdateComplete(
    const webapps::AppId& app_id,
    FetchManifestAndUpdateResult result) {
  base::UmaHistogramEnumeration("WebApp.Preinstalled.UpdateOnStartup", result);
  WebAppPrefGuardrails guardrails =
      WebAppPrefGuardrails::GetForDefaultAppUpdateOnStartup(
          *profile_->GetPrefs());
  guardrails.RecordIgnore(app_id, clock().Now());
}

}  // namespace web_app