%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  dcsvm
%global packver   0.0.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.0.1
Release:          1%{?dist}%{?buildtag}
Summary:          Density Convoluted Support Vector Machines

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


BuildRequires:    R-devel
Requires:         R-core
BuildRequires:    R-CRAN-Matrix 
BuildRequires:    R-grDevices 
BuildRequires:    R-graphics 
BuildRequires:    R-methods 
BuildRequires:    R-stats 
Requires:         R-CRAN-Matrix 
Requires:         R-grDevices 
Requires:         R-graphics 
Requires:         R-methods 
Requires:         R-stats 

%description
Implements an efficient algorithm for solving sparse-penalized support
vector machines with kernel density convolution. This package is designed
for high-dimensional classification tasks, supporting lasso (L1) and
elastic-net penalties for sparse feature selection and providing options
for tuning kernel bandwidth and penalty weights. The 'dcsvm' is applicable
to fields such as bioinformatics, image analysis, and text classification,
where high-dimensional data commonly arise. Learn more about the
methodology and algorithm at Wang, Zhou, Gu, and Zou (2023)
<doi:10.1109/TIT.2022.3222767>.

%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}