%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  openfhe.R
%global packver   1.5.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.5.1
Release:          1%{?dist}%{?buildtag}
Summary:          R Interface to the 'OpenFHE' Fully Homomorphic Encryption Library

License:          BSD_2_clause + file LICENSE
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.3.0
Requires:         R-core >= 4.3.0
BuildRequires:    R-CRAN-cpp11 >= 0.4.2
BuildRequires:    R-CRAN-S7 
BuildRequires:    R-CRAN-cli 
BuildRequires:    R-methods 
Requires:         R-CRAN-S7 
Requires:         R-CRAN-cli 
Requires:         R-methods 

%description
Provides an R interface to 'OpenFHE', the open-source C++ library for
fully homomorphic encryption (Al Badawi and others, 2022)
<https://eprint.iacr.org/2022/915>, which allows computation directly on
encrypted data without access to the secret key. Supports the
Brakerski-Fan-Vercauteren (BFV, 2012) <https://eprint.iacr.org/2012/144>,
Brakerski-Gentry-Vaikuntanathan (BGV, 2014) <doi:10.1145/2633600>, and
Cheon-Kim-Kim-Song (CKKS, 2017) <https://eprint.iacr.org/2016/421> schemes
for arithmetic on encrypted numbers, together with the Ducas-Micciancio
(FHEW, 2015) <https://eprint.iacr.org/2014/816> and
Chillotti-Gama-Georgieva-Izabachene (TFHE, 2020)
<https://eprint.iacr.org/2018/421> schemes for evaluating arbitrary
functions on encrypted bits.

%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}