// Copyright 2018 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 CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_UTILS_H_
#define CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_UTILS_H_

#include <string>
#include <vector>

#include "base/callback.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/web_applications/web_app.h"
#include "chrome/browser/web_applications/web_app_id.h"
#include "components/services/app_service/public/cpp/file_handler.h"
#include "content/public/common/alternative_error_page_override_info.mojom.h"

class GURL;
class Profile;

namespace base {
class FilePath;
}

namespace content {
class BrowserContext;
}

namespace web_app {

class WebAppProvider;

namespace default_offline {
// |alternative_error_page_params| dictionary key values in the
// |AlternativeErrorPageOverrideInfo| mojom struct.
const char kMessage[] = "web_app_default_offline_message";
const char kAppShortName[] = "app_short_name";
const char kThemeColor[] = "theme_color";
const char kBackgroundColor[] = "customized_background_color";
const char kIconUrl[] = "icon_url";
const char kDarkModeBackgroundColor[] = "dark_mode_background_color";
const char kDarkModeThemeColor[] = "dark_mode_theme_color";
}  // namespace default_offline

// These functions return true if the WebApp System or its subset is allowed
// for a given profile.
// |profile| can be original profile or its secondary off-the-record profile.
// Returns false if |profile| is nullptr.
//
// Is main WebApp System allowed (WebAppProvider exists):
bool AreWebAppsEnabled(const Profile* profile);
// Is user allowed to install web apps from UI:
bool AreWebAppsUserInstallable(Profile* profile);
// Can system web apps be installed:
bool AreSystemWebAppsSupported();

// Get BrowserContext to use for a WebApp KeyedService creation.
content::BrowserContext* GetBrowserContextForWebApps(
    content::BrowserContext* context);
content::BrowserContext* GetBrowserContextForWebAppMetrics(
    content::BrowserContext* context);

// Gets information from web app's manifest, including theme color, background
// color and app short name, and returns this inside a struct.
content::mojom::AlternativeErrorPageOverrideInfoPtr GetAppManifestInfo(
    const GURL& url,
    content::BrowserContext* browser_context);

// Returns a root directory for all Web Apps themed data.
//
// All the related directory getters always require |web_apps_root_directory| as
// a first argument to avoid directory confusions.
base::FilePath GetWebAppsRootDirectory(Profile* profile);

// Returns a directory to store local cached manifest resources in
// OS-independent manner. Use GetManifestResourcesDirectoryForApp function to
// get per-app manifest resources directory.
//
// To store OS-specific integration data, use
// GetOsIntegrationResourcesDirectoryForApp declared in web_app_shortcut.h.
base::FilePath GetManifestResourcesDirectory(
    const base::FilePath& web_apps_root_directory);
base::FilePath GetManifestResourcesDirectory(Profile* profile);

// Returns per-app directory name to store manifest resources.
base::FilePath GetManifestResourcesDirectoryForApp(
    const base::FilePath& web_apps_root_directory,
    const AppId& app_id);

base::FilePath GetWebAppsTempDirectory(
    const base::FilePath& web_apps_root_directory);

// The return value (profile categories) are used to report metrics. They are
// persisted to logs and should not be renamed. If new names are added, update
// tool/metrics/histograms/histograms.xml: "SystemWebAppProfileCategory".
std::string GetProfileCategoryForLogging(Profile* profile);

// Returns true if the WebApp should have `web_app::WebAppChromeOsData()`.
bool IsChromeOsDataMandatory();

// Returns true if sync should install web apps locally by default.
bool AreAppsLocallyInstalledBySync();

// Returns whether `old_handlers` contains all handlers in `new_handlers`.
// Useful for determining whether the user's approval of the API needs to be
// reset during app update.
bool AreNewFileHandlersASubsetOfOld(const apps::FileHandlers& old_handlers,
                                    const apps::FileHandlers& new_handlers);

// Returns a display-ready string that holds all file type associations handled
// by the app referenced by `app_id`. This will return capitalized file
// extensions with the period truncated, like "TXT, PNG". `found_multiple`, when
// non-null, will be set to indicate whether the returned string is a list
// (false indicates it's a single object). Note that on Linux, the files must
// actually match both the specified MIME types as well as the specified file
// extensions, so this list of extensions is an incomplete picture (subset) of
// which file types will be accepted.
std::u16string GetFileTypeAssociationsHandledByWebAppForDisplay(
    Profile* profile,
    const AppId& app_id,
    bool* found_multiple = nullptr);

// Updates the approved or disallowed protocol list for the given app. If
// necessary, it also updates the protocol registration with the OS.
void PersistProtocolHandlersUserChoice(
    Profile* profile,
    const AppId& app_id,
    const GURL& protocol_url,
    bool allowed,
    base::OnceClosure update_finished_callback);

// Updates the File Handling API approval state for the given app. If
// necessary, it also updates the registration with the OS.
void PersistFileHandlersUserChoice(Profile* profile,
                                   const AppId& app_id,
                                   bool allowed,
                                   base::OnceClosure update_finished_callback);

// Updates the file handler registration with the OS to match the app's
// settings. Note that this tries to avoid extra work by no-oping if the current
// OS state matches what is calculated to be the desired stated. For example, if
// Chromium has already registered file handlers with the OS, and finds that
// file handlers *should* be registered with the OS, this function will no-op.
// This will not account for what the current file handlers actually are. The
// actual set of file handlers can only change on app update, and that path must
// go through `OsIntegrationManager::UpdateOsHooks()`, which always clobbers and
// renews the entire set of OS-registered file handlers (and other OS hooks).
void UpdateFileHandlerOsIntegration(WebAppProvider* provider,
                                    const AppId& app_id,
                                    base::OnceClosure update_finished_callback);

// Check if only |specified_sources| exist in the |sources|
bool HasAnySpecifiedSourcesAndNoOtherSources(WebAppSources sources,
                                             WebAppSources specified_sources);

// Check if all types of |sources| are uninstallable by the user.
bool CanUserUninstallWebApp(WebAppSources sources);

// Extracts app_id from chrome://app-settings/<app-id> URL path.
AppId GetAppIdFromAppSettingsUrl(const GURL& url);

// Check if |url|'s path is an installed web app.
bool HasAppSettingsPage(Profile* profile, const GURL& url);

#if BUILDFLAG(IS_CHROMEOS_ASH)
// The kLacrosPrimary and kWebAppsCrosapi features are each independently
// sufficient to enable the web apps Crosapi (used for Lacros web app
// management).
bool IsWebAppsCrosapiEnabled();
#endif

#if BUILDFLAG(IS_CHROMEOS_LACROS)
// Enables System Web Apps so we can test SWA features in Lacros, even we don't
// have actual SWAs in Lacros.
void EnableSystemWebAppsInLacrosForTesting();

// Allow user web apps on profiles other than the main profile.
void SkipMainProfileCheckForTesting();
#endif

constexpr char kAppSettingsPageEntryPointsHistogramName[] =
    "WebApp.AppSettingsPage.EntryPoints";

// These are used in histograms, do not remove/renumber entries. If you're
// adding to this enum with the intention that it will be logged, update the
// AppSettingsPageEntryPoint enum listing in
// tools/metrics/histograms/enums.xml.
enum class AppSettingsPageEntryPoint {
  kPageInfoView = 0,
  kChromeAppsPage = 1,
  kMaxValue = kChromeAppsPage,
};

}  // namespace web_app

#endif  // CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_UTILS_H_