/*
 * Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/Function.h>
#include <LibURL/URL.h>
#include <LibWebView/Application.h>
#include <LibWebView/PrivateBrowsing.h>
#include <UI/Qt/BrowserWindow.h>

#include <QApplication>

class QMenu;
class QWidget;

namespace Ladybird {

struct WindowConfiguration {
    Optional<Web::DevicePixels> x {};
    Optional<Web::DevicePixels> y {};
    Optional<Web::DevicePixels> width {};
    Optional<Web::DevicePixels> height {};
    Optional<bool> maximized {};
};

class Application final : public WebView::Application {
    WEB_VIEW_APPLICATION(Application)

public:
    virtual ~Application() override;

    Function<void(URL::URL)> on_open_file;

    BrowserWindow& new_window(Vector<URL::URL> const& initial_urls, WindowConfiguration const& = {}, BrowserWindow::IsPopupWindow is_popup_window = BrowserWindow::IsPopupWindow::No, WebView::IsPrivate = WebView::IsPrivate::No, Tab* parent_tab = nullptr, Optional<u64> page_index = {});
    WindowConfiguration configuration_for_new_window() const;
    void open_new_tab();
    void open_new_window(WebView::IsPrivate);
    void restart_private_browsing_session();
    void focus_location_editor();
    void reopen_recently_closed_tab();
    void open_file();
    void quit();
    bool confirm_cancel_active_downloads(QWidget* parent = nullptr);
    void initialize_macos_application_menu();
    QMenu* qt_bookmarks_menu() const;

    BrowserWindow& active_window() const { return *m_active_window; }
    void set_active_window(BrowserWindow&);
    BrowserWindow* active_window_if_any() const { return m_active_window; }

    Tab* active_tab() const { return m_active_window ? m_active_window->current_tab() : nullptr; }
    void update_reopen_recently_closed_actions() const;
    void update_macos_application_menu() const;

private:
    explicit Application();

    virtual void create_platform_options(WebView::BrowserOptions&, WebView::RequestServerOptions&, WebView::WebContentOptions&) override;
    virtual Core::EventLoop& create_platform_event_loop() override;

    virtual Optional<WebView::ViewImplementation&> active_web_view() const override;
    virtual Vector<WebView::ViewImplementation&> active_window_web_views() const override;
    virtual bool activate_tab_with_url(URL::URL const&) const override;

    virtual Optional<WebView::ViewImplementation&> open_blank_new_tab(Web::HTML::ActivateTab) const override;
    virtual void open_url_in_new_tab(URL::URL const&, Web::HTML::ActivateTab) const override;
    virtual void open_urls_in_new_tabs(ReadonlySpan<URL::URL>) const override;
    virtual void open_url_in_new_window(URL::URL const&, WebView::IsPrivate) override;

    virtual Optional<ByteString> ask_user_for_download_path(ByteString const& file) const override;
    virtual void display_download_confirmation_dialog(StringView download_name, LexicalPath const& path) const override;
    virtual void display_error_dialog(StringView error_message) const override;
    virtual void open_download(WebView::FileDownloader::Download const&) const override;
    virtual void show_download_in_folder(WebView::FileDownloader::Download const&) const override;

    virtual bool supports_clipboard_type(ClipboardType) const override;
    virtual Utf16String clipboard_text(ClipboardType) const override;
    virtual void set_clipboard_text(String, ClipboardType = ClipboardType::Text) override;

    virtual Vector<Web::Clipboard::SystemClipboardRepresentation> clipboard_entries() const override;
    virtual void insert_clipboard_entry(Web::Clipboard::SystemClipboardRepresentation) override;

    virtual bool supports_vertical_tabs() const override { return true; }
    virtual bool supports_server_side_window_decorations() const override { return true; }
    virtual bool supports_private_browsing_windows() const override { return true; }

    virtual void update_tabs_display() const override;

    virtual void rebuild_bookmarks_menu() const override;
    virtual void show_bookmark_context_menu(Gfx::IntPoint, Optional<WebView::BookmarkItem const&>, Optional<String const&> target_folder_id) override;
    virtual Optional<BookmarkID> bookmark_item_id_for_context_menu() const override;
    virtual NonnullRefPtr<AddBookmarkPromise> display_add_bookmark_dialog(Optional<String const&> target_folder_id = {}) const override;
    virtual NonnullRefPtr<BookmarkPromise> display_edit_bookmark_dialog(WebView::BookmarkItem::Bookmark const& current_bookmark) const override;
    virtual NonnullRefPtr<BookmarkFolderPromise> display_add_bookmark_folder_dialog(Optional<String const&> default_title = {}) const override;
    virtual NonnullRefPtr<BookmarkFolderPromise> display_edit_bookmark_folder_dialog(WebView::BookmarkItem::Folder const& current_folder) const override;

    virtual void on_devtools_enabled() const override;
    virtual void on_devtools_disabled() const override;
    virtual void on_recently_closed_entries_changed() const override;

    OwnPtr<QApplication> m_application;
    BrowserWindow* m_active_window { nullptr };
};

}