#include "core/rendering/notifications.hpp"

#include "core/rendering/screen.h"
#include "utils/utils.h"

namespace Notifications {

    namespace {
        // Paleta pastel. Per a tunejar l'aparença només cal tocar aquí.
        // (Color no és literal type ⇒ const, no constexpr.)
        const Color INFO_COLOR{0xF0, 0xE0, 0x90};     // groc trigo
        const Color TOGGLE_COLOR{0xA0, 0xE0, 0xF0};   // cian gel
        const Color CHOICE_COLOR{0xE0, 0xA0, 0xE0};   // rosa orquídia
        const Color SUCCESS_COLOR{0xB0, 0xE6, 0xB0};  // verd menta
        const Color DANGER_COLOR{0xF0, 0xA0, 0xA0};   // rosa salmó

        // Factor de foscor per a l'outline (~40% de la lluminositat del
        // color base): manté el matís i queda prou fosc per a contrastar
        // amb el text pastel sobre el fons del joc.
        constexpr float OUTLINE_FACTOR = 0.40F;

        auto baseColor(Palette p) -> Color {
            switch (p) {
                case Palette::INFO:
                    return INFO_COLOR;
                case Palette::TOGGLE:
                    return TOGGLE_COLOR;
                case Palette::CHOICE:
                    return CHOICE_COLOR;
                case Palette::SUCCESS:
                    return SUCCESS_COLOR;
                case Palette::DANGER:
                    return DANGER_COLOR;
            }
            return INFO_COLOR;
        }

        auto darken(Color c, float factor) -> Color {
            return Color{
                static_cast<Uint8>(static_cast<float>(c.r) * factor),
                static_cast<Uint8>(static_cast<float>(c.g) * factor),
                static_cast<Uint8>(static_cast<float>(c.b) * factor),
            };
        }
    }  // namespace

    void show(const std::string &text, Palette palette, Uint32 duration_ms) {
        if (Screen::get() == nullptr) { return; }
        const Color BASE = baseColor(palette);
        const Color OUTLINE = darken(BASE, OUTLINE_FACTOR);
        Screen::get()->notify(text, BASE, OUTLINE, duration_ms);
    }

}  // namespace Notifications