%global pypi_name brainflow

Name:           python-%{pypi_name}
Version:        5.22.2
Release:        2%{?dist}
Summary:        Python bindings for BrainFlow

License:        MIT
URL:            https://brainflow.org/
# PyPI ships ONLY a binary wheel for brainflow (no sdist), and that wheel
# bundles prebuilt native libs we must not ship. Build the pure-Python
# bindings from the GitHub source archive (python_package/) instead and
# link them to the system libs from our brainflow C++ package.
Source0:        https://github.com/brainflow-dev/brainflow/archive/refs/tags/%{version}.tar.gz#/%{pypi_name}-%{version}.tar.gz

# Not noarch: the package's lib/ symlinks point into %%{_libdir}.
%global debug_package %{nil}
BuildRequires:  python3-devel
BuildRequires:  pyproject-rpm-macros
# Provides /usr/lib64/lib{BoardController,DataHandler,MLModule}.so so we can
# resolve the real versioned soname to symlink into the python package.
BuildRequires:  brainflow-devel = %{version}

%description
Python bindings for BrainFlow, intended to obtain, parse and analyze
EEG, EMG, ECG and other kinds of data from biosensors.

%package -n     python3-%{pypi_name}
Summary:        %{summary}
# The python modules dlopen the native libs at runtime (BoardController,
# DataHandler, MLModule), which the runtime brainflow package ships.
Requires:       brainflow%{?_isa} = %{version}
Requires:       python3-numpy
%{?python_provide:%python_provide python3-%{pypi_name}}

%description -n python3-%{pypi_name}
Python bindings for BrainFlow.

%prep
%autosetup -n %{pypi_name}-%{version}

# The python bindings live in python_package/. Its setup.py carries a
# placeholder version that BrainFlow's CI rewrites at release time; pin it
# to the real version so the wheel/dist metadata is correct.
sed -i "s/version='0.0.1'.*/version='%{version}',/" python_package/setup.py

%generate_buildrequires
cd python_package
%pyproject_buildrequires

%build
cd python_package
%pyproject_wheel

%install
cd python_package
%pyproject_install
%pyproject_save_files %{pypi_name}

# The bindings load lib/libBoardController.so, lib/libDataHandler.so and
# lib/libMLModule.so *relative to the installed package* (board_shim.py,
# data_filter.py, ml_model.py hardcode these paths and raise if missing).
# We do not bundle the native libs (Fedora policy) — instead symlink the
# package's lib/ entries to the system libraries from the brainflow C++
# package. Resolve to the real versioned file so the runtime dependency is
# the (versioned) brainflow package, not brainflow-devel.
mkdir -p %{buildroot}%{python3_sitelib}/%{pypi_name}/lib
for l in libBoardController libDataHandler libMLModule; do
    target=$(readlink -f %{_libdir}/$l.so)
    ln -s "$target" %{buildroot}%{python3_sitelib}/%{pypi_name}/lib/$l.so
done

%check
# Confirm the bindings import and resolve the system native libs (the
# symlinks above + ldconfig). board_shim's loader raises FileNotFoundError
# if the lib path can't be resolved, so a clean import proves the wiring.
%pyproject_check_import
# Importing does not load the native libraries; streaming from the synthetic board
# does. -1 put the symlinks in sitearch next to nothing and passed the import check.
%{py3_test_envvars} %{python3} - <<'PYEOF'
import time
from brainflow.board_shim import BoardShim, BrainFlowInputParams, BoardIds
from brainflow.data_filter import DataFilter
b = BoardShim(BoardIds.SYNTHETIC_BOARD, BrainFlowInputParams())
b.prepare_session(); b.start_stream(); time.sleep(1.5)
d = b.get_board_data(); b.stop_stream(); b.release_session()
assert d.shape[1] > 100, d.shape
DataFilter.detrend(d[BoardShim.get_eeg_channels(BoardIds.SYNTHETIC_BOARD)[0]], 1)
for bid in (BoardIds.CYTON_BOARD, BoardIds.CYTON_DAISY_BOARD, BoardIds.GANGLION_BOARD,
            BoardIds.FREEEEG32_BOARD, BoardIds.PIEEG_BOARD):
    print(bid.name, BoardShim.get_sampling_rate(bid), len(BoardShim.get_eeg_channels(bid)))
print("synthetic samples", d.shape)
PYEOF

%files -n python3-%{pypi_name} -f %{pyproject_files}
%license python_package/LICENSE.txt
%doc python_package/README.md
%dir %{python3_sitelib}/%{pypi_name}/lib
%{python3_sitelib}/%{pypi_name}/lib/lib*.so

%changelog
* Sun Oct 11 2026 Morgan Hough <morgan.hough@gmail.com> - 5.22.2-2
- The lib/ symlinks went into sitearch while the modules install into sitelib, so
  BoardShim could not find libBoardController.so and no board worked from Python
  (FileNotFoundError, synthetic board included). Put them next to the modules,
  drop noarch (they point into %%{_libdir}), and test by streaming from the
  synthetic board, since an import check never loads the native libraries.

* Sun Jun 14 2026 Morgan Hough <morgan.hough@gmail.com> - 5.22.2-1
- Update to 5.22.2 (current upstream; freshness sweep 2026-06-14).
- PyPI dropped the sdist (wheel-only, with bundled native libs). Switch
  Source0 to the GitHub release archive and build the pure-Python bindings
  from python_package/. Pin the CI-placeholder setup.py version.
- Symlink the package's lib/{libBoardController,libDataHandler,libMLModule}.so
  to the system libraries (resolved to their real versioned soname) instead
  of bundling: the modules dlopen these paths relative to the package.

* Wed Jan 07 2026 Morgan Hough <morgan.hough@gmail.com> - 5.19.0-1
- Initial Python bindings for BrainFlow linked against system libs