#include "Text.h"
#include <SDL3/SDL_init.h>
#include <cstdio>


SDL_AppResult Text::OpenFont(const fs::path &font) {
    if (!TTF_Init()) {
        SDL_Log("Couldn't initialize SDL_ttf: %s\n", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    loadedFont = TTF_OpenFont(fs::absolute(font).c_str(), 12.0f);
    if (!loadedFont) {
        printf("Font not found! \n");
        return SDL_APP_FAILURE;
    }
    color = WHITE;
    return SDL_APP_CONTINUE;
}

bool Text::SetText(const std::string &text, const Window *win, SDL_FRect rect) {
    buffer += text;

    SDL_DestroySurface(textRenderingSurface);
    textRenderingSurface = TTF_RenderText_Blended(loadedFont, buffer.c_str(), 0, color);

    if (textRenderingSurface) {
        font_texture = SDL_CreateTextureFromSurface(win->GetRenderer(), textRenderingSurface);
        SDL_DestroySurface(textRenderingSurface);
    }
    if (!font_texture) {
        SDL_Log("Couldn't create text: %s\n", SDL_GetError());
        return false;
    }

    return true;
}

void Text::Render() const {
    int w = 0, h = 0;
    SDL_FRect dst;
    const float scale = 4.0f;

    /* Center the text and scale it up */
    SDL_GetRenderOutputSize(window.GetRenderer(), &w, &h);
    SDL_SetRenderScale(window.GetRenderer(), scale, scale);
    SDL_GetTextureSize(font_texture, &dst.w, &dst.h);
    dst.x = ((w / scale) - dst.w) / 2;
    dst.y = ((h / scale) - dst.h) / 2;
    SDL_RenderTexture(window.GetRenderer(), font_texture, nullptr, &dst);
}