// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_UI_WEB_APPLICATIONS_WEB_APP_LAUNCH_UTILS_H_
#define CHROME_BROWSER_UI_WEB_APPLICATIONS_WEB_APP_LAUNCH_UTILS_H_

#include <stdint.h>

#include <memory>
#include <optional>
#include <string>

#include "base/functional/callback_helpers.h"
#include "base/memory/stack_allocated.h"
#include "base/time/time.h"
#include "chrome/browser/web_applications/web_app_ui_manager.h"
#include "components/services/app_service/public/cpp/app_launch_util.h"
#include "components/webapps/common/web_app_id.h"
#include "content/public/browser/navigation_handle.h"
#include "ui/gfx/geometry/rect.h"

class Profile;
struct BrowserWindowCreateParams;
class BrowserWindowInterface;
class GURL;
enum class WindowOpenDisposition;

namespace apps {
struct AppLaunchParams;
}

namespace content {
class WebContents;
}

namespace web_app {
// This function moves `contents` from the `source_browser` to the
// `target_browser`. In doing so, it attempts to ensure that any logic that
// needs to occur when transitioning between 'app' and 'browser' windows occurs,
// and the all session restore logic is correctly updated. `contents` is not
// required to be the active web contents in `source_browser`.
//
// Note: This will CHECK-fail if `contents` is not in `source_browser`.
void ReparentWebContentsIntoBrowserImpl(BrowserWindowInterface* source_browser,
                                        content::WebContents* contents,
                                        BrowserWindowInterface* target_browser,
                                        bool insert_as_pinned_home_tab = false);

class AppBrowserController;
class WithAppResources;

// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class LaunchedAppType {
  kDiy = 0,
  kCrafted = 1,
  kMaxValue = kCrafted,
};

std::optional<webapps::AppId> GetWebAppForActiveTab(
    const BrowserWindowInterface* browser);

// Clears navigation history prior to user entering app scope.
void PrunePreScopeNavigationHistory(const GURL& scope,
                                    content::WebContents* contents);

// Invokes ReparentWebContentsIntoAppBrowser() for the active tab for the
// web app that has the tab's URL in its scope. Does nothing if there is no web
// app in scope.
BrowserWindowInterface* ReparentWebAppForActiveTab(
    BrowserWindowInterface* browser);

// Reparents `contents` into a standalone web app window for `app_id`.
// - If the web app has a launch_handler set to reuse existing windows and there
// are existing web app windows around this will launch the web app into the
// existing window and close `contents`.
// - If the web app is in experimental tabbed mode and has and existing web app
// window, `contents` will be reparented into the existing window.
// - Otherwise a new browser window is created for `contents` to be reparented
// into.
// Returns the browser instance where the reparenting has happened, nullptr
// otherwise. Runs `completion_callback` (synchronously or asynchronously) with
// the existing `contents`, if it was reparented, or with the new `web_contents`
// that was created if the behavior deemed it necessary (like for focus existing
// and navigate-existing use-cases).
BrowserWindowInterface* ReparentWebContentsIntoAppBrowser(
    content::WebContents* contents,
    const webapps::AppId& app_id,
    base::OnceCallback<void(content::WebContents*)> completion_callback =
        base::DoNothingAs<void(content::WebContents*)>());

// Marks the web contents as being the pinned home tab of a tabbed web app.
void SetWebContentsIsPinnedHomeTab(content::WebContents* contents);

std::unique_ptr<AppBrowserController> MaybeCreateAppBrowserController(
    BrowserWindowInterface* bwi);

void MaybeAddPinnedHomeTab(BrowserWindowInterface* browser,
                           const std::string& app_id);

// Shows the navigation capturing IPH if the situation warrants it (e.g. the
// WebAppProvider is available, guardrail metrics are not suppressing it and
// the IPH is permitted to show).
void MaybeShowNavigationCaptureIph(webapps::AppId app_id,
                                   Profile* profile,
                                   BrowserWindowInterface* browser);

// This creates appropriate CreateParams for creating a PWA window or PWA popup
// window.
BrowserWindowCreateParams CreateParamsForApp(const webapps::AppId& app_id,
                                             bool is_popup,
                                             bool trusted_source,
                                             const gfx::Rect& window_bounds,
                                             Profile* profile,
                                             bool user_gesture);

BrowserWindowInterface* CreateWebAppWindowMaybeWithHomeTab(
    const webapps::AppId& app_id,
    BrowserWindowCreateParams params);

// Report UMA metrics and updates  app's last launch time, site engagement
// stats, etc.
void UpdateLaunchMetricsAndStats(const webapps::AppId& app_id,
                                 apps::LaunchContainer container,
                                 apps::LaunchSource launch_source,
                                 const GURL& launch_url,
                                 content::WebContents* web_contents);

// Locks that lock apps all have the WithAppResources mixin, allowing any
// app-locking lock to call this method.
void LaunchWebApp(apps::AppLaunchParams params,
                  LaunchWebAppWindowSetting launch_setting,
                  Profile& profile,
                  WithAppResources& app_resources,
                  LaunchWebAppDebugValueCallback callback);

// Focus the app container depending on whether the `browser` is an app window
// or if it is a normal tabbed browser. `browser` shouldn't be a nullptr, and
// the `tab_index` should be a valid index for a tab inside `browser`.
void FocusAppContainer(BrowserWindowInterface* browser, int tab_index);

}  // namespace web_app

#endif  // CHROME_BROWSER_UI_WEB_APPLICATIONS_WEB_APP_LAUNCH_UTILS_H_