%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  OSIRCR
%global packver   0.2.9
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.2.9
Release:          1%{?dist}%{?buildtag}
Summary:          Cosine Regression-Based Online Sliced Inverse Regression Algorithm

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


BuildRequires:    R-devel >= 3.5.0
Requires:         R-core >= 3.5.0
BuildArch:        noarch
BuildRequires:    R-stats 
Requires:         R-stats 

%description
In high-dimensional streaming data analysis, extracting core periodic
features under real-time constraints remains challenging. Traditional
dimension reduction methods fail to adapt to incremental data and yield
low accuracy due to irrelevant variables. This package provides the Online
Sliced Inverse Regression framework for cosine regression with
high-dimensional irrelevant variables. It integrates subspace extraction
of sliced inverse regression and incremental learning of online algorithms
to efficiently handle periodic streaming data. Cai, Z., Li, R., & Zhu, L.
(2020) <doi:10.48550/arXiv.2002.02795>.

%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}