cardboy/Firmware/sdk/library/include_public/TextWindow.hpp

//
// Created by Stepan Usatiuk on 26.07.2025.
//

#ifndef TEXTWINDOW_HPP
#define TEXTWINDOW_HPP
#include <string>

#include "Fonts.hpp"
#include "Window.hpp"
#include "utils.hpp"

template<typename StringType>
struct TextUpdateEvent : public Event {
    TextUpdateEvent(StringType text) : new_text(std::move(text)) {}
    StringType new_text;
};

template<typename SurfaceType, typename StringType>
class TextWindow : public Window<SurfaceType>,
                   public EventHandler<TextUpdateEvent<StringType>>,
                   public EventQueue<TextWindow<SurfaceType, StringType>, TextUpdateEvent<StringType>> {
public:
    using PixelType = typename SurfaceType::PixelType;

    explicit TextWindow(SurfaceType* owner, EventLoop* loop, StringType text = "") :
        Window<SurfaceType>(owner), EventQueue<TextWindow, TextUpdateEvent<StringType>>(loop, this),
        _text(std::move(text)) {}

    EventHandlingResult handle_v(SurfaceResizeEvent resize) override {
        refresh();
        return EventHandlingResult::DONE;
    }

    EventHandlingResult handle(TextUpdateEvent<StringType> event) {
        _text = std::move(event.new_text);
        refresh();
        return EventHandlingResult::DONE;
    }

    void refresh() {
        this->_owner->clear();
        size_t _max_col = this->_owner->get_width() / 8;
        size_t _max_row = this->_owner->get_height() / 16;
        int    col = 0, row = 0;
        for (char c: _text) {
            if (c == '\n' || col >= _max_col) {
                row++;
                col = 0;
                if (c == '\n')
                    continue;
            }

            if (row >= _max_row) {
                break;
            }

            for (int x = 0; x < 8; x++) {
                for (int y = 0; y < 16; y++) {
                    bool color = fonts_Terminess_Powerline[c][y] & (1 << (8 - x));
                    this->_owner->draw_pixel(col * 8 + x, row * 16 + y, PixelType(color));
                }
            }
            col++;
        }
    }

private:
    StringType _text;
};

#endif // TEXTWINDOW_HPP