# VTK library implementing the IEC 61217 radiotherapy coordinate-system
# transform hierarchy (gantry / collimator / patient support / table top).
#
# Packaged for 3dslicer-rt (SlicerRT), whose
# DrrImageComputation/Logic/CMakeLists.txt:3 does
#   find_package(vtkIECTransformLogic REQUIRED)
# and whose SuperBuild/External_vtkIECTransformLogic.cmake otherwise clones it
# from git at configure time -- impossible in mock/COPR.
#
# Upstream pins "origin/main" with no tag or release, so we pin the commit
# ourselves. Upstream declares no version in project(), hence the 0 Version and
# a snapshot Release.

%global commit       b81c2de2e8e55037d8721da87aae35463ced1e97
%global shortcommit  %(c=%{commit}; echo ${c:0:8})
%global snapdate     20260529

Name:           vtkIECTransformLogic
Version:        0
Release:        0.3.%{snapdate}git%{shortcommit}%{?dist}
Summary:        VTK implementation of the IEC 61217 radiotherapy transform hierarchy

License:        BSD-3-Clause
URL:            https://github.com/EBATINCA/RadiotherapyTransformsIEC
Source0:        %{url}/archive/%{commit}/%{name}-%{shortcommit}.tar.gz

BuildRequires:  cmake >= 3.20
BuildRequires:  ninja-build
BuildRequires:  gcc-c++
BuildRequires:  vtk-devel >= 9.6.2
# VTK's cmake config runs find_package for every module dependency at
# find_package(VTK) time; these are the ones a minimal consumer still needs.
BuildRequires:  freetype-devel
BuildRequires:  pugixml-devel
BuildRequires:  fmt-devel
BuildRequires:  utf8cpp-devel
BuildRequires:  PEGTL-devel
BuildRequires:  jsoncpp-devel
BuildRequires:  cli11-devel
BuildRequires:  viskores-devel

# COPR vtk 9.6.2 and Fedora's vtk 9.5.x share the libvtk*.so.1 SONAME, so an
# unpinned Requires can resolve to an ABI-incompatible build.
Requires:       vtk >= 9.6.2

%description
vtkIECTransformLogic provides the coordinate-system transform hierarchy
defined by IEC 61217 for radiotherapy treatment machines: the fixed
reference, gantry, beam limiting device, wedge filter, patient support,
table top eccentric and table top systems, and the transforms between
them.

%package        devel
Summary:        Development files for vtkIECTransformLogic
Requires:       %{name}%{?_isa} = %{version}-%{release}
Requires:       vtk-devel >= 9.6.2

%description    devel
Headers and CMake package configuration for building against
vtkIECTransformLogic.

%prep
%autosetup -n RadiotherapyTransformsIEC-%{commit}

# Upstream declares no version anywhere and builds a bare, unversioned
# libvtkIECTransformLogic.so -- fine inside Slicer's private bundled layout,
# but Fedora requires a versioned SONAME for a library in %%{_libdir}.
# Inject VERSION/SOVERSION after the add_library() call. Since upstream has no
# version of its own, SOVERSION 0 starts the ABI counter here; bump it by hand
# if a future snapshot breaks ABI.
sed -i 's|^add_library(${lib_name} SHARED ${srcs}).*$|&\nset_target_properties(${lib_name} PROPERTIES VERSION 0.0.0 SOVERSION 0)|' \
    CMakeLists.txt
grep -q 'SOVERSION 0' CMakeLists.txt

# The header install globs only the top level:
#   file(GLOB headers "${CMAKE_CURRENT_SOURCE_DIR}/*.h")
# which picks up vtkIECTransformLogicExport.h but NOT src/vtkIECTransformLogic.h
# -- the actual class header, and the only one consumers include (SlicerRT does
# so in 3 places). Upstream never noticed because its superbuild consumes this
# from the build tree, where the source dir is on the include path anyway.
# Add src/ to the glob.
sed -i 's|^  file(GLOB headers "${CMAKE_CURRENT_SOURCE_DIR}/\*\.h")$|  file(GLOB headers "${CMAKE_CURRENT_SOURCE_DIR}/*.h" "${CMAKE_CURRENT_SOURCE_DIR}/src/*.h")|' CMakeLists.txt
grep -q 'src/\*\.h' CMakeLists.txt

# src/vtkIECTransformLogic.h:26 reaches its export header with a relative
#   #include "../vtkIECTransformLogicExport.h"
# which is only correct in the source tree (src/ -> top level). The install
# flattens both headers into the same directory, so "../" then points one level
# above the include dir and no consumer can compile the header. Make it a plain
# sibling include, which resolves in both layouts.
sed -i 's|^#include "\.\./vtkIECTransformLogicExport\.h"$|#include "vtkIECTransformLogicExport.h"|' \
    src/vtkIECTransformLogic.h
! grep -q '"\.\./vtkIECTransformLogicExport\.h"' src/vtkIECTransformLogic.h

%build
%cmake -GNinja \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS:BOOL=ON \
    -DBUILD_TESTING:BOOL=OFF \
    `# CMakeLists.txt:95 defaults INSTALL_NO_DEVELOPMENT to ON, so the headers` \
    `# are never installed -- upstream expects to be consumed from its build` \
    `# tree by SlicerRT's superbuild. A -devel package needs them.` \
    -DvtkIECTransformLogic_INSTALL_NO_DEVELOPMENT:BOOL=OFF \
    `# Upstream defaults the library to lib/vtkIECTransformLogic (a private` \
    `# subdir aimed at Slicer's bundled layout) and the headers to` \
    `# include/vtkIECTransformLogic. Put the library in the normal libdir so` \
    `# ldconfig finds it and no RPATH is needed.` \
    -DvtkIECTransformLogic_INSTALL_LIB_DIR:STRING=%{_lib} \
    -DvtkIECTransformLogic_INSTALL_BIN_DIR:STRING=bin \
    -DvtkIECTransformLogic_INSTALL_INCLUDE_DIR:STRING=include/%{name} \
    -DvtkIECTransformLogic_INSTALL_CMAKE_DIR:STRING=%{_lib}/cmake/%{name} \
    -DvtkIECTransformLogic_WRAP_PYTHON:BOOL=OFF \
    -DCMAKE_SKIP_INSTALL_RPATH:BOOL=ON

%cmake_build

%install
%cmake_install

%ldconfig_scriptlets

%files
%license LICENSE
%doc README.md
%{_libdir}/lib%{name}.so.*

%files devel
%{_includedir}/%{name}/
%{_libdir}/lib%{name}.so
%{_libdir}/cmake/%{name}/

%changelog
* Mon Aug 03 2026 Morgan Hough <morgan.hough@gmail.com> - 0-0.1.20260529gitb81c2de2
- Initial package, to unblock 3dslicer-rt (SlicerRT requires
  find_package(vtkIECTransformLogic) and its superbuild cannot run in
  mock/COPR)
- Commit pinned locally: upstream tracks origin/main with no tags or releases