#include "../include/Suggestions.hpp"
#include "../include/Text.hpp"
#include "../include/ResourceCache.hpp"
#include "../include/Settings.hpp"
#include "../include/ColorScheme.hpp"
#include "../include/Chatbar.hpp"
#include <cmath>

namespace dchat
{
    static const char *FONT_PATH = "fonts/Nunito-Regular.ttf";
    static float FONT_SCALING = 18.0f;

    static sf::Vector2f floor(const sf::Vector2f &vec)
    {
        return { std::floor(vec.x), std::floor(vec.y) };
    }

    void Suggestions::show(const std::vector<std::string> &_texts)
    {
        for(const auto &text : _texts)
        {
            sf::String str = sf::String::fromUtf8(text.begin(), text.end());
            texts.emplace_back(std::make_unique<Text>(str, ResourceCache::getFont(FONT_PATH), FONT_SCALING * Settings::getScaling(), 0.0f, false));
        }
    }

    void Suggestions::draw(sf::RenderWindow &window, Cache *cache)
    {
        if(texts.empty()) return;

        sf::Vector2f position = Chatbar::getInputPosition(window);
        sf::Vector2f size = Chatbar::getInputSize(window);
        size.y = FONT_SCALING * Settings::getScaling() * (1 + texts.size()) * 1.7f;
        position.y -= size.y;

        position = floor(position);
        size = floor(size);

        sf::RectangleShape rect(size);
        rect.setPosition(position);
        rect.setFillColor(ColorScheme::getPanelColor());
        window.draw(rect);

        for(const auto &text : texts)
        {
            text->setCharacterSize(FONT_SCALING * Settings::getScaling());
            text->setMaxWidth(size.x);
            text->setPosition(position.x, std::floor(position.y));
            text->draw(window, cache);
            position.y += text->getHeight();
        }
    }
}