// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_GLOBAL_MEDIA_CONTROLS_PUBLIC_VIEWS_MEDIA_ITEM_UI_UPDATED_VIEW_H_
#define COMPONENTS_GLOBAL_MEDIA_CONTROLS_PUBLIC_VIEWS_MEDIA_ITEM_UI_UPDATED_VIEW_H_

#include <vector>

#include "base/memory/raw_ptr.h"
#include "components/global_media_controls/public/media_item_ui.h"
#include "components/global_media_controls/public/views/media_action_button.h"
#include "components/global_media_controls/public/views/media_item_ui_device_selector.h"
#include "components/global_media_controls/public/views/media_item_ui_footer.h"
#include "components/global_media_controls/public/views/media_live_status_view.h"
#include "components/global_media_controls/public/views/media_progress_view.h"
#include "components/media_message_center/media_notification_view.h"
#include "components/media_message_center/notification_theme.h"
#include "ui/base/metadata/metadata_header_macros.h"

namespace media_message_center {
class MediaNotificationItem;
}  // namespace media_message_center
namespace views {
class Button;
class ImageView;
class Label;
}  // namespace views

namespace global_media_controls {

class MediaItemUIObserver;

// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
//
// LINT.IfChange(MediaItemUIUpdatedViewAction)
enum class MediaItemUIUpdatedViewAction {
  kPlay = 0,
  kPause = 1,
  kPreviousTrack = 2,
  kNextTrack = 3,
  kReplay10Seconds = 4,
  kForward10Seconds = 5,
  kProgressViewSeekBackward = 6,
  kProgressViewSeekForward = 7,
  kShowDeviceListForCasting = 8,
  kHideDeviceListForCasting = 9,
  kCloseDeviceListForCasting = 10,
  kEnterPictureInPicture = 11,
  kExitPictureInPicture = 12,
  kSaveVideoFrame = 13,
  kMaxValue = kSaveVideoFrame,
};
// LINT.ThenChange(//tools/metrics/histograms/metadata/media/enums.xml:MediaItemUIUpdatedViewAction)

const char kMediaItemUIUpdatedViewActionHistogram[] =
    "Media.GlobalMediaControls.MediaItemUIUpdatedViewAction";

// MediaItemUIUpdatedView holds the media information and playback controls for
// a media session or cast session. This will be displayed within
// MediaDialogView on non-CrOS desktop platforms and replace MediaItemUIView and
// MediaItemUIDetailedView.
class COMPONENT_EXPORT(GLOBAL_MEDIA_CONTROLS) MediaItemUIUpdatedView
    : public MediaItemUI,
      public media_message_center::MediaNotificationView {
  METADATA_HEADER(MediaItemUIUpdatedView, views::View)

 public:
  MediaItemUIUpdatedView(
      const std::string& id,
      base::WeakPtr<media_message_center::MediaNotificationItem> item,
      media_message_center::MediaColorTheme media_color_theme,
      std::unique_ptr<MediaItemUIDeviceSelector> device_selector_view,
      std::unique_ptr<MediaItemUIFooter> footer_view);
  MediaItemUIUpdatedView(const MediaItemUIUpdatedView&) = delete;
  MediaItemUIUpdatedView& operator=(const MediaItemUIUpdatedView&) = delete;
  ~MediaItemUIUpdatedView() override;

  // views::View:
  gfx::Size CalculatePreferredSize(
      const views::SizeBounds& available_size) const override;
  void AddedToWidget() override;
  bool OnKeyPressed(const ui::KeyEvent& event) override;
  bool OnMousePressed(const ui::MouseEvent& event) override;

  // MediaItemUI:
  void AddObserver(MediaItemUIObserver* observer) override;
  void RemoveObserver(MediaItemUIObserver* observer) override;

  // media_message_center::MediaNotificationView:
  void SetForcedExpandedState(bool* forced_expanded_state) override {}
  void SetExpanded(bool expanded) override {}
  void UpdateCornerRadius(int top_radius, int bottom_radius) override {}
  void UpdateWithMediaSessionInfo(
      const media_session::mojom::MediaSessionInfoPtr& session_info) override;
  void UpdateWithMediaMetadata(
      const media_session::MediaMetadata& metadata) override;
  void UpdateWithMediaActions(
      const base::flat_set<media_session::mojom::MediaSessionAction>& actions)
      override;
  void UpdateWithMediaPosition(
      const media_session::MediaPosition& position) override;
  void UpdateWithMediaArtwork(const gfx::ImageSkia& image) override;
  void UpdateWithChapterArtwork(int index,
                                const gfx::ImageSkia& image) override {}
  void UpdateWithFavicon(const gfx::ImageSkia& icon) override;
  void UpdateWithVectorIcon(const gfx::VectorIcon* vector_icon) override {}
  void UpdateWithMuteStatus(bool mute) override {}
  void UpdateWithVolume(float volume) override {}
  void UpdateDeviceSelectorVisibility(bool visible) override;
  void UpdateDeviceSelectorAvailability(bool has_devices) override;

  // MediaItemUIUpdatedView:
  void UpdateDeviceSelectorView(
      std::unique_ptr<MediaItemUIDeviceSelector> device_selector_view);
  void UpdateFooterView(std::unique_ptr<MediaItemUIFooter> footer_view);
  void UpdateDeviceSelectorIssue(bool has_issue);

  // Helper functions for testing:
  views::ImageView* GetArtworkViewForTesting();
  views::ImageView* GetFaviconViewForTesting();
  views::ImageView* GetCastingIndicatorViewForTesting();
  views::Label* GetSourceLabelForTesting();
  views::Label* GetTitleLabelForTesting();
  views::Label* GetArtistLabelForTesting();
  views::Label* GetCurrentTimestampLabelForTesting();
  views::Label* GetDurationTimestampLabelForTesting();
  MediaActionButton* GetMediaActionButtonForTesting(
      media_session::mojom::MediaSessionAction action);
  MediaProgressView* GetProgressViewForTesting();
  MediaLiveStatusView* GetLiveStatusViewForTesting();
  MediaActionButton* GetStartCastingButtonForTesting();
  MediaItemUIDeviceSelector* GetDeviceSelectorForTesting();
  MediaItemUIFooter* GetFooterForTesting();

 private:
  MediaActionButton* CreateMediaActionButton(views::View* parent,
                                             int button_id,
                                             const gfx::VectorIcon& vector_icon,
                                             int tooltip_text_id);

  // Callback for a media action button being pressed.
  void MediaActionButtonPressed(views::Button* button);

  // Update the visibility of media action buttons based on which media session
  // actions are enabled.
  void UpdateMediaActionButtonsVisibility();

  // Update the visibility of timestamp labels. They are visible only when the
  // user is dragging the progress view.
  void UpdateTimestampLabelsVisibility();

  // Callback for when the user starts or ends dragging the progress view.
  void OnProgressDragStateChange(DragState drag_state);

  // Callback for when the user starts or ends dragging the progress view, and
  // the media is playing before dragging starts. The media should be
  // temporarily paused when the dragging starts, and resumed when the dragging
  // ends.
  void OnPlaybackStateChangeForProgressDrag(
      PlaybackStateChangeForDragging change);

  // Callback for when the media progress view wants to update the progress
  // position.
  void SeekTo(double seek_progress);

  // Callback for when the media progress view wants to inform the current
  // progress position.
  void OnProgressViewUpdateProgress(base::TimeDelta current_timestamp);

  // Callback for when the start casting button is toggled by user.
  void StartCastingButtonPressed();

  // Update the display states of UI elements for casting devices.
  void UpdateCastingState();

  void UpdateAccessibleName();

  // Whether the media is currently in picture-in-picture.
  bool in_picture_in_picture_ = false;

  // Whether the media is broadcast via livestream.
  bool is_live_ = false;

  // Whether the user is currently dragging the progress view.
  DragState drag_state_ = DragState::kDragEnded;

  // Set of enabled media session actions that are used to decide media action
  // button visibilities.
  base::flat_set<media_session::mojom::MediaSessionAction> media_actions_;

  media_session::MediaPosition position_;

  // Records the media position when user starts dragging the progress view. Use
  // Max() as its default value to indicate that no dragging has started and the
  // previous dragging has ended if there was one.
  base::TimeDelta position_on_drag_started_ = base::TimeDelta::Max();

  base::ObserverList<MediaItemUIObserver> observers_;

  // Required to store the returned value though it is not used.
  base::CallbackListSubscription title_label_changed_callback_;

  raw_ptr<views::ImageView> artwork_view_ = nullptr;
  raw_ptr<views::ImageView> favicon_view_ = nullptr;
  raw_ptr<views::ImageView> casting_indicator_view_ = nullptr;
  raw_ptr<views::Label> source_label_ = nullptr;
  raw_ptr<views::Label> title_label_ = nullptr;
  raw_ptr<views::Label> artist_label_ = nullptr;
  raw_ptr<views::Label> current_timestamp_label_ = nullptr;
  raw_ptr<views::Label> duration_timestamp_label_ = nullptr;

  raw_ptr<MediaProgressView> progress_view_ = nullptr;
  raw_ptr<MediaLiveStatusView> live_status_view_ = nullptr;
  std::vector<raw_ptr<MediaActionButton>> media_action_buttons_;
  raw_ptr<MediaActionButton> save_video_frame_button_ = nullptr;
  raw_ptr<MediaActionButton> start_casting_button_ = nullptr;
  raw_ptr<MediaActionButton> picture_in_picture_button_ = nullptr;
  raw_ptr<MediaActionButton> play_pause_button_ = nullptr;

  // Init parameters.
  const std::string id_;
  base::WeakPtr<media_message_center::MediaNotificationItem> item_;
  media_message_center::MediaColorTheme media_color_theme_;
  raw_ptr<MediaItemUIDeviceSelector> device_selector_view_ = nullptr;
  raw_ptr<MediaItemUIFooter> footer_view_ = nullptr;
};

}  // namespace global_media_controls

#endif  // COMPONENTS_GLOBAL_MEDIA_CONTROLS_PUBLIC_VIEWS_MEDIA_ITEM_UI_UPDATED_VIEW_H_