%global pypi_name emsutil
# The LICENSE file was added upstream (same author) after 0.8.3 was tagged.
%global license_commit 5f1da68

Name:           python-%{pypi_name}
# EMerge 2.8.x requires emsutil >= 0.8.3, < 0.9; Hertzon pins EMerge 2.8.9.
Version:        0.8.3
Release:        1%{?dist}
Summary:        Common utilities for the EMerge electromagnetic simulator

License:        MIT
URL:            https://github.com/FennisRobert/emsutil
Source0:        %{url}/archive/v%{version}/%{pypi_name}-%{version}.tar.gz
Source1:        https://raw.githubusercontent.com/FennisRobert/emsutil/%{license_commit}/LICENSE

BuildArch:      noarch
BuildRequires:  python3-devel
BuildRequires:  pyproject-rpm-macros

%global _description %{expand:
emsutil holds the pieces shared by Robert Fennis' EMerge FEM solver and its
companion tools: physical constants, the frequency- and coordinate-dependent
Material class and material libraries (Rogers, Isola), msgpack-based saving
of simulation objects, field and far-field data structures and the matplotlib
and PyVista plotting helpers.}

%description %_description

%package -n python3-%{pypi_name}
Summary:        %{summary}
%description -n python3-%{pypi_name} %_description

%prep
%autosetup -n %{pypi_name}-%{version}
cp -p %{SOURCE1} LICENSE
# numpy < 2.3 is an upstream pin, not a known incompatibility; Fedora ships 2.3-2.5.
sed -i 's/"numpy>=1.24, <2.3"/"numpy>=1.24"/' pyproject.toml

%generate_buildrequires
%pyproject_buildrequires

%build
%pyproject_wheel

%install
%pyproject_install
%pyproject_save_files %{pypi_name}

%check
%pyproject_check_import
# No upstream tests at this tag. Exercise the parts EMerge relies on:
# constants, materials and the msgpack save/load round trip with arrays.
cd %{_builddir}
%{py3_test_envvars} MPLBACKEND=Agg %{python3} - <<'PYEOF'
import os, tempfile
import numpy as np
import emsutil
from emsutil import C0, EPS0, MU0, Material, save_object, load_object
assert abs(C0 - 299792458) < 1, C0
assert abs(1 / np.sqrt(EPS0 * MU0) - C0) / C0 < 1e-6
m = Material(er=4.4, tand=0.02, name="FR4")
f = os.path.join(tempfile.mkdtemp(), "obj.emd")
a = np.linspace(0, 1, 7).reshape(7, 1) * (1 + 2j)
save_object(f, {"freq": a, "label": "x", "n": 3})
d = load_object(f)
assert np.allclose(d["freq"], a) and d["freq"].dtype == a.dtype
assert d["label"] == "x" and d["n"] == 3
print("emsutil ok")
PYEOF

%files -n python3-%{pypi_name} -f %{pyproject_files}
%license LICENSE
%doc README.md

%changelog
* Wed Oct 21 2026 Morgan Hough <morgan.hough@gmail.com> - 0.8.3-1
- Initial package (EMerge dependency, for Hertzon).