%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  fetwfe
%global packver   1.5.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.5.0
Release:          1%{?dist}%{?buildtag}
Summary:          Fused Extended Two-Way Fixed Effects

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


BuildRequires:    R-devel >= 4.1.0
Requires:         R-core >= 4.1.0
BuildArch:        noarch
BuildRequires:    R-CRAN-Matrix >= 1.6.0
BuildRequires:    R-CRAN-expm 
BuildRequires:    R-CRAN-glmnet 
BuildRequires:    R-CRAN-grpreg 
Requires:         R-CRAN-Matrix >= 1.6.0
Requires:         R-CRAN-expm 
Requires:         R-CRAN-glmnet 
Requires:         R-CRAN-grpreg 

%description
Calculates the fused extended two-way fixed effects (FETWFE) estimator for
unbiased and efficient estimation of difference-in-differences in panel
data with staggered treatment adoption. This estimator eliminates bias
inherent in conventional two-way fixed effects estimators, while also
employing a novel bridge regression regularization approach to improve
efficiency and yield valid standard errors. Also implements extended TWFE
(etwfe) and bridge-penalized ETWFE (betwfe). Provides S3 classes for
streamlined workflow and supports flexible tuning (ridge and
rank-condition guarantees), automatic covariate centering/scaling, and
detailed overall and cohort-specific effect estimates with valid standard
errors. Includes simulation and formatting utilities, extensive diagnostic
tools, vignettes, and examples. See Faletto (2025)
(<doi:10.48550/arXiv.2312.05985>).

%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}