#include <cmath>
#include <print>

#include "mfem.hpp"
#include "libRayfem/io/serif.hpp"
#include "libRayfem/mesh/converter.hpp"

/** @brief Exercise the visualization dependency without opening a window or running a solve. */
int main() {
    auto mesh = mfem::Mesh::MakeCartesian2D(2, 2, mfem::Element::QUADRILATERAL, true, 1.0, 1.0);
    mfem::H1_FECollection collection(2, 2);
    mfem::FiniteElementSpace space(&mesh, &collection);
    mfem::GridFunction field(&space);
    mfem::FunctionCoefficient coefficient([](const mfem::Vector& x) { return x[0] + 2.0 * x[1]; });
    field.ProjectCoefficient(coefficient);

    const auto surface = RayFEM::BuildSurface(mesh, &field);
    if (!RayFEM::SerifLoadingAvailable() || surface.values.empty() ||
        std::abs(surface.min_value) > 1.0e-12 || std::abs(surface.max_value - 3.0) > 1.0e-12) {
        std::println(stderr, "RayFEM could not evaluate the parent MFEM field or load SERiF archives.");
        return 1;
    }
    std::println("RayFEM evaluated the MFEM field through serif_dep; SERiF archive support is available.");
    return 0;
}