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

Name:             R-CRAN-%{packname}
Version:          0.2
Release:          1%{?dist}%{?buildtag}
Summary:          Topographic Position Index-Based Landform Classification

License:          GPL (>= 2)
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-graphics >= 4.2.0
BuildRequires:    R-grDevices >= 4.2.0
BuildRequires:    R-stats >= 4.2.0
BuildRequires:    R-CRAN-terra >= 1.7.0
Requires:         R-graphics >= 4.2.0
Requires:         R-grDevices >= 4.2.0
Requires:         R-stats >= 4.2.0
Requires:         R-CRAN-terra >= 1.7.0

%description
Provides a function for classifying a landscape into different categories
based on the Topographic Position Index (TPI) and slope. It offers two
types of classifications: Slope Position Classification, and Landform
Classification. The function internally calculates the TPI for the given
landscape and then uses it along with the slope to perform the
classification. Optionally, descriptive statistics for every class are
calculated and plotted. The classifications are useful for identifying the
position of a location on a slope and for identifying broader landform
types.

%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}