#include "svg_renderer.hpp"

#include "math/constants.hpp"

SvgRenderer::SvgRenderer(const std::filesystem::path& path, size_t width, size_t height) : m_file(path)
{
    if (m_file.bad())
        throw std::runtime_error("Cannot open " + path.string() + " for writing");

    m_file << "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"" << width << "\" height=\"" << height
           << "\" viewBox=\"0 0 " << width << " " << height << "\" role=\"img\" aria-label=\"KIV/CPP\">" << std::endl;
}

void SvgRenderer::DrawLine(const math::Vector& p0, const math::Vector& p1)
{
    m_file << "  <line x1=\"" << p0.x << "\" y1=\"" << p0.y << "\" x2=\"" << p1.x << "\" y2=\"" << p1.y << "\" "
           << "stroke=\"#000000\" stroke-width=\"2\" stroke-linecap=\"round\" />" << std::endl;
}

void SvgRenderer::DrawRectangle(const math::Vector& pos, const math::Vector& size, float angle)
{
    float angleDeg = angle * math::RAD_TO_DEG;

    m_file << "  <rect x=\"" << pos.x << "\" y=\"" << pos.y << "\" width=\"" << size.x << "\" height=\"" << size.y
           << "\" fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-linejoin=\"round\" transform=\"rotate("
           << angleDeg << ", " << pos.x << ", " << pos.y << ")\" />" << std::endl;
}

void SvgRenderer::DrawCircle(const math::Vector& center, float radius)
{
    m_file << "  <circle cx=\"" << center.x << "\" cy=\"" << center.y << "\" r=\"" << radius
           << "\" fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" />" << std::endl;
}

SvgRenderer::~SvgRenderer()
{
    m_file << "</svg>" << std::endl;
}