/*
 * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
 * Copyright (c) 2022, the SerenityOS developers.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/Optional.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Widget.h>
#include <LibGfx/ShareableBitmap.h>
#include <LibHTTP/Job.h>
#include <LibURL/URL.h>
#include <LibWeb/Forward.h>
#include <LibWebView/ViewImplementation.h>

namespace WebView {
class OutOfProcessWebView;
}

namespace Browser {

class BrowserWindow;
class InspectorWidget;
class HistoryWidget;
class StorageWidget;
class URLBox;

class Tab final : public GUI::Widget {
    C_OBJECT(Tab);

    // FIXME: This should go away eventually.
    friend class BrowserWindow;

public:
    virtual ~Tab() override;

    URL::URL url() const;

    void load(URL::URL const&);

    void reload();
    void go_back();
    void go_forward();

    void did_become_active();
    void context_menu_requested(Gfx::IntPoint screen_position);
    void content_filters_changed();
    void autoplay_allowlist_changed();
    void proxy_mappings_changed();

    void action_entered(GUI::Action&);
    void action_left(GUI::Action&);

    void window_position_changed(Gfx::IntPoint);
    void window_size_changed(Gfx::IntSize);

    Function<void(ByteString const&)> on_title_change;
    Function<void(const URL::URL&)> on_tab_open_request;
    Function<void(Tab&)> on_activate_tab_request;
    Function<void(Tab&)> on_tab_close_request;
    Function<void(Tab&)> on_tab_close_other_request;
    Function<void(const URL::URL&)> on_window_open_request;
    Function<void(Gfx::Bitmap const&)> on_favicon_change;
    Function<Vector<Web::Cookie::Cookie>()> on_get_cookies_entries;
    Function<OrderedHashMap<String, String>()> on_get_local_storage_entries;
    Function<OrderedHashMap<String, String>()> on_get_session_storage_entries;

    void enable_webdriver_mode();

    enum class InspectorTarget {
        Document,
        HoveredElement
    };
    void show_inspector_window(InspectorTarget);

    void show_storage_inspector();
    void show_history_inspector();

    void update_reset_zoom_button();

    ByteString const& title() const { return m_title; }
    Gfx::Bitmap const* icon() const { return m_icon; }

    WebView::OutOfProcessWebView& view() { return *m_web_content_view; }

private:
    explicit Tab(BrowserWindow&);

    virtual void show_event(GUI::ShowEvent&) override;
    virtual void hide_event(GUI::HideEvent&) override;

    BrowserWindow const& window() const;
    BrowserWindow& window();

    void update_actions();
    ErrorOr<void> bookmark_current_url();
    void update_bookmark_button(StringView url);
    void start_download(const URL::URL& url);
    void view_source(const URL::URL& url, StringView source);
    void update_status(Optional<String> text_override = {}, i32 count_waiting = 0);
    void close_sub_widgets();

    RefPtr<WebView::OutOfProcessWebView> m_web_content_view;

    RefPtr<URLBox> m_location_box;
    RefPtr<GUI::Button> m_reset_zoom_button;
    RefPtr<GUI::Button> m_bookmark_button;
    RefPtr<InspectorWidget> m_dom_inspector_widget;
    RefPtr<StorageWidget> m_storage_widget;
    RefPtr<HistoryWidget> m_history_widget;
    RefPtr<GUI::Statusbar> m_statusbar;
    RefPtr<GUI::ToolbarContainer> m_toolbar_container;

    RefPtr<GUI::Dialog> m_dialog;

    RefPtr<GUI::Menu> m_link_context_menu;
    RefPtr<GUI::Action> m_link_context_menu_default_action;
    RefPtr<GUI::Action> m_link_copy_action;
    URL::URL m_link_context_menu_url;

    RefPtr<GUI::Menu> m_image_context_menu;
    Gfx::ShareableBitmap m_image_context_menu_bitmap;
    URL::URL m_image_context_menu_url;

    RefPtr<GUI::Menu> m_audio_context_menu;
    RefPtr<GUI::Menu> m_video_context_menu;
    RefPtr<GUI::Action> m_media_context_menu_play_pause_action;
    RefPtr<GUI::Action> m_media_context_menu_mute_unmute_action;
    RefPtr<GUI::Action> m_media_context_menu_controls_action;
    RefPtr<GUI::Action> m_media_context_menu_loop_action;
    URL::URL m_media_context_menu_url;

    RefPtr<GUI::Menu> m_tab_context_menu;

    RefPtr<GUI::Menu> m_page_context_menu;
    Optional<String> m_page_context_menu_search_text;

    RefPtr<GUI::Menu> m_go_back_context_menu;
    RefPtr<GUI::Menu> m_go_forward_context_menu;

    RefPtr<GUI::Menu> m_select_dropdown;
    bool m_select_dropdown_closed_by_action { false };

    ByteString m_title;
    RefPtr<Gfx::Bitmap const> m_icon;

    Optional<URL::URL> m_navigating_url;

    bool m_loaded { false };

    bool m_can_navigate_back { false };
    bool m_can_navigate_forward { false };
};

}