/*

 * Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include <AK/FlyString.h>

#include <AK/TypeCasts.h>

#include <LibWeb/UIEvents/EventModifier.h>

#include <LibWeb/UIEvents/KeyCode.h>

#include <LibWeb/UIEvents/UIEvent.h>

namespace Web::UIEvents {

struct KeyboardEventInit : public EventModifierInit {

    String key;

    String code;

    u32 location { 0 };

    bool repeat { false };

    bool is_composing { false };

    u32 key_code { 0 };

    u32 char_code { 0 };

};

enum class DOMKeyLocation {

    Standard = 0,

    Left = 1,

    Right = 2,

    Numpad = 3,

};

// https://www.w3.org/TR/uievents/#interface-keyboardevent

class KeyboardEvent final : public UIEvent {

    WEB_PLATFORM_OBJECT(KeyboardEvent, UIEvent);

    JS_DECLARE_ALLOCATOR(KeyboardEvent);

public:

    [[nodiscard]] static JS::NonnullGCPtr<KeyboardEvent> create(JS::Realm&, FlyString const& event_name, KeyboardEventInit const& = {});

    [[nodiscard]] static JS::NonnullGCPtr<KeyboardEvent> create_from_platform_event(JS::Realm&, FlyString const& event_name, KeyCode, unsigned modifiers, u32 code_point);

    static WebIDL::ExceptionOr<JS::NonnullGCPtr<KeyboardEvent>> construct_impl(JS::Realm&, FlyString const& event_name, KeyboardEventInit const&);

    virtual ~KeyboardEvent() override;

    u32 key_code() const { return m_key_code; }

    u32 char_code() const { return m_char_code; }

    String key() const { return m_key; }

    String code() const { return m_code; }

    u32 location() const { return m_location; }

    bool ctrl_key() const { return m_ctrl_key; }

    bool shift_key() const { return m_shift_key; }

    bool alt_key() const { return m_alt_key; }

    bool meta_key() const { return m_meta_key; }

    bool repeat() const { return m_repeat; }

    bool is_composing() const { return m_is_composing; }

    bool get_modifier_state(String const& key_arg) const;

    virtual u32 which() const override { return m_key_code; }

    void init_keyboard_event(String const& type, bool bubbles, bool cancelable, HTML::Window* view, String const& key, WebIDL::UnsignedLong location, bool ctrl_key, bool alt_key, bool shift_key, bool meta_key);

private:

    KeyboardEvent(JS::Realm&, FlyString const& event_name, KeyboardEventInit const& event_init);

    virtual void initialize(JS::Realm&) override;

    String m_key;

    String m_code;

    u32 m_location { 0 };

    bool m_ctrl_key { false };

    bool m_shift_key { false };

    bool m_alt_key { false };

    bool m_meta_key { false };

    bool m_modifier_alt_graph { false };

    bool m_modifier_caps_lock { false };

    bool m_modifier_fn { false };

    bool m_modifier_fn_lock { false };

    bool m_modifier_hyper { false };

    bool m_modifier_num_lock { false };

    bool m_modifier_scroll_lock { false };

    bool m_modifier_super { false };

    bool m_modifier_symbol { false };

    bool m_modifier_symbol_lock { false };

    bool m_repeat { false };

    bool m_is_composing { false };

    u32 m_key_code { 0 };

    u32 m_char_code { 0 };

};

}