%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  cre.dcf
%global packver   0.0.5
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.0.5
Release:          1%{?dist}%{?buildtag}
Summary:          Discounted Cash Flow Tools for Commercial Real Estate

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
Requires:         R-core >= 4.1
BuildArch:        noarch
BuildRequires:    R-CRAN-checkmate 
BuildRequires:    R-CRAN-dplyr 
BuildRequires:    R-CRAN-magrittr 
BuildRequires:    R-CRAN-purrr 
BuildRequires:    R-stats 
BuildRequires:    R-CRAN-tibble 
BuildRequires:    R-utils 
BuildRequires:    R-CRAN-yaml 
Requires:         R-CRAN-checkmate 
Requires:         R-CRAN-dplyr 
Requires:         R-CRAN-magrittr 
Requires:         R-CRAN-purrr 
Requires:         R-stats 
Requires:         R-CRAN-tibble 
Requires:         R-utils 
Requires:         R-CRAN-yaml 

%description
Provides 'R' utilities to build unlevered and levered discounted cash flow
(DCF) tables for commercial real estate (CRE) assets. Functions generate
bullet and amortising debt schedules, compute credit metrics such as debt
service coverage ratios (DSCR), debt yield ratios, and forward
loan-to-value ratios (LTV), and expose an explicit property-level
operating chain from gross effective income (GEI) to net operating income
(NOI) and property before-tax cash flow (PBTCF). The toolkit supports
end-to-end scenario execution from a YAML (YAML Ain't Markup Language)
configuration file parsed with 'yaml', includes helpers for effective
rent, constrained loan underwriting, and simplified SPV-level tax
simulations, and ships reproducible vignettes for methodological and
applied use cases.

%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}