%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  RANSAC
%global packver   0.1.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.1.0
Release:          1%{?dist}%{?buildtag}
Summary:          Robust Model Fitting Using the RANSAC Algorithm

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


BuildRequires:    R-devel >= 4.0.0
Requires:         R-core >= 4.0.0
BuildArch:        noarch
BuildRequires:    R-stats 
Requires:         R-stats 

%description
Provides tools for robust regression model fitting using the RANSAC
(Random Sample Consensus) algorithm. RANSAC is an iterative method to
estimate parameters of a model from a dataset that contains outliers. This
package allows fitting both linear lm and nonlinear nls models using
RANSAC, helping users obtain more reliable models in the presence of noisy
or corrupted data. The methods are particularly useful in contexts where
traditional least squares regression fails due to the influence of
outliers. Implementations include support for performance metrics such as
RMSE, MAE, and R² based on the inlier subset. For further details, see
Fischler and Bolles (1981) <doi:10.1145/358669.358692>.

%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}