/*
Crafter®.Graphics
Copyright (C) 2025 Catcrafts®
Catcrafts.net

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
*/

export module Crafter.Graphics:Window;
import std;
import Crafter.Event;
import :UiElement;
import :Types;

export namespace Crafter {
    struct ScaleData {
        std::int32_t x;
		std::int32_t y;
		std::int32_t width;
		std::int32_t height;
    };

    /**
    * @brief Represents a GUI window handling input events, mouse states, keyboard states, and UI elements.
    * 
    * The Window class encapsulates event handling for mouse and keyboard interactions,
    * manages the state of the mouse and keyboard, and stores UI elements contained within the window.
    * It also holds window-specific properties such as name, dimensions, and scaling factor.
    */
    class Window {
        public:
        Event<MousePoint> onMouseRightClick;
        Event<MousePoint> onMouseLeftClick;
        Event<MousePoint> onMouseRightHold;
        Event<MousePoint> onMouseLeftHold;
        Event<MousePoint> onMouseRightRelease;
        Event<MousePoint> onMouseLeftRelease;
        Event<MouseMoveEvent> onMouseMove;
        Event<MouseMoveEvent> onMouseEnter;
        Event<MouseMoveEvent> onMouseLeave;
        Event<double> onMouseScroll;
        Event<void> onClose;
        MousePoint currentMousePos;
        MousePoint lastMousePos;
        MousePoint mouseDelta;
        bool mouseLeftHeld = false;
        bool mouseRightHeld = false;
        bool heldkeys[255] = {};
        Event<void> onKeyDown[255];
        Event<void> onKeyHold[255];
        Event<void> onKeyUp[255];
        Event<char> onAnyKeyDown;
        Event<char> onAnyKeyHold;
        Event<char> onAnyKeyUp;
        std::vector<UiElement> elements;
        std::string name;
        std::uint32_t width;
        std::uint32_t height;
        float scale = 1;
        bool open = true;
        /**
        * @brief Constructs a Window with a given name and dimensions.
        * @param name The title of the window.
        * @param width The width of the window in pixels.
        * @param height The height of the window in pixels.
        */
        Window(std::string name, std::uint32_t width, std::uint32_t height);
        /**
        * @brief Calculates the real position and size of an UiElement
        * 
        * @param element The UI element to get the position from.
        * @return The actual position and size of the element after scaling.
        */
        ScaleData ScaleElement(const UiElement& element);
    };
}