%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  cppSim
%global packver   0.2
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.2
Release:          1%{?dist}%{?buildtag}
Summary:          Fast and Memory Efficient Spatial Interaction Models

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


BuildRequires:    R-devel >= 3.6
Requires:         R-core >= 3.6
BuildRequires:    R-CRAN-Rcpp 
BuildRequires:    R-CRAN-RcppArmadillo 
Requires:         R-CRAN-Rcpp 

%description
Building on top of the 'RcppArmadillo' linear algebra functionalities to
do fast spatial interaction models in the context of urban analytics,
geography, transport modelling. It uses the Newton root search algorithm
to determine the optimal cost exponent and can run country level models
with thousands of origins and destinations. It aims at implementing an
easy approach based on matrices, that can originate from various routing
and processing steps earlier in an workflow. Currently, the simplest form
of production, destination and doubly constrained models are implemented.
Schlosser et al. (2023) <doi:10.48550/arXiv.2309.02112>.

%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}