%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  SimplicialComplex
%global packver   0.2.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.2.1
Release:          1%{?dist}%{?buildtag}
Summary:          Topological Data Analysis: Simplicial Complex

License:          MIT + file LICENSE
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel
Requires:         R-core
BuildArch:        noarch
BuildRequires:    R-CRAN-Matrix 
BuildRequires:    R-CRAN-gtools 
BuildRequires:    R-CRAN-igraph 
BuildRequires:    R-CRAN-ggplot2 
BuildRequires:    R-CRAN-geometry 
BuildRequires:    R-CRAN-RANN 
BuildRequires:    R-CRAN-clue 
BuildRequires:    R-CRAN-MASS 
BuildRequires:    R-parallel 
Requires:         R-CRAN-Matrix 
Requires:         R-CRAN-gtools 
Requires:         R-CRAN-igraph 
Requires:         R-CRAN-ggplot2 
Requires:         R-CRAN-geometry 
Requires:         R-CRAN-RANN 
Requires:         R-CRAN-clue 
Requires:         R-CRAN-MASS 
Requires:         R-parallel 

%description
Provides an implementation of simplicial complexes for Topological Data
Analysis (TDA). The package includes functions to compute faces, boundary
operators, Betti numbers, Euler characteristic, and to construct
simplicial complexes, including Vietoris-Rips, Cech, Alpha, Delaunay,
Witness, flood, and (via a Freudenthal triangulation) cubical complexes
for grid and image data. It also implements persistent homology, from
building filtrations (via a single build_filtration() entry point covering
all of the above) to computing persistence diagrams, persistence
landscapes, and Wasserstein/bottleneck distances between diagrams, with
the aim of helping readers understand the core concepts of computational
topology. Methods are based on standard references in persistent homology
such as Zomorodian and Carlsson (2005) <doi:10.1007/s00454-004-1146-y>,
Chazal and Michel (2021) <doi:10.3389/frai.2021.667963>, and Otter,
Porter, Tillmann, Grindrod and Harrington (2017)
<doi:10.1140/epjds/s13688-017-0109-5>.

%prep
%setup -q -c -n %{packname}

# fix end of executable files
find -type f -executable -exec grep -Iq . {} \; -exec sed -i -e '$a\' {} \;
# prevent binary stripping
[ -d %{packname}/src ] && find %{packname}/src -type f -exec \
  sed -i 's@/usr/bin/strip@/usr/bin/true@g' {} \; || true
[ -d %{packname}/src ] && find %{packname}/src/Make* -type f -exec \
  sed -i 's@-g0@@g' {} \; || true
# don't allow local prefix in executable scripts
find -type f -executable -exec sed -Ei 's@#!( )*/usr/local/bin@#!/usr/bin@g' {} \;

%build

%install

mkdir -p %{buildroot}%{rlibdir}
%{_bindir}/R CMD INSTALL -l %{buildroot}%{rlibdir} %{packname}
test -d %{packname}/src && (cd %{packname}/src; rm -f *.o *.so)
rm -f %{buildroot}%{rlibdir}/R.css
# remove buildroot from installed files
find %{buildroot}%{rlibdir} -type f -exec sed -i "s@%{buildroot}@@g" {} \;

%files
%{rlibdir}/%{packname}