%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  cauchypca
%global packver   1.3
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.3
Release:          1%{?dist}%{?buildtag}
Summary:          Robust Principal Component Analysis Using the Cauchy Distribution

License:          GPL (>= 2)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.0
Requires:         R-core >= 4.0
BuildArch:        noarch
BuildRequires:    R-CRAN-doParallel 
BuildRequires:    R-CRAN-foreach 
BuildRequires:    R-parallel 
BuildRequires:    R-CRAN-Rfast 
BuildRequires:    R-CRAN-Rfast2 
BuildRequires:    R-stats 
Requires:         R-CRAN-doParallel 
Requires:         R-CRAN-foreach 
Requires:         R-parallel 
Requires:         R-CRAN-Rfast 
Requires:         R-CRAN-Rfast2 
Requires:         R-stats 

%description
A new robust principal component analysis algorithm is implemented that
relies upon the Cauchy Distribution. The algorithm is suitable for high
dimensional data even if the sample size is less than the number of
variables. The methodology is described in this paper: Fayomi A., Pantazis
Y., Tsagris M. and Wood A.T.A. (2024). "Cauchy robust principal component
analysis with applications to high-dimensional data sets". Statistics and
Computing, 34: 26. <doi:10.1007/s11222-023-10328-x>.

%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}