%global __brp_check_rpaths %{nil}
%global packname  OptCirClust
%global packver   0.0.4
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.0.4
Release:          1%{?dist}%{?buildtag}
Summary:          Circular, Periodic, or Framed Data Clustering: Fast, Optimal, and Reproducible

License:          LGPL (>= 3)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel
Requires:         R-core
BuildRequires:    R-CRAN-Ckmeans.1d.dp 
BuildRequires:    R-graphics 
BuildRequires:    R-CRAN-plotrix 
BuildRequires:    R-CRAN-Rcpp 
BuildRequires:    R-CRAN-Rdpack 
BuildRequires:    R-stats 
BuildRequires:    R-CRAN-reshape2 
Requires:         R-CRAN-Ckmeans.1d.dp 
Requires:         R-graphics 
Requires:         R-CRAN-plotrix 
Requires:         R-CRAN-Rcpp 
Requires:         R-CRAN-Rdpack 
Requires:         R-stats 
Requires:         R-CRAN-reshape2 

%description
Fast, optimal, and reproducible clustering algorithms for circular,
periodic, or framed data. The algorithms introduced here are based on a
core algorithm for optimal framed clustering the authors have developed
(Debnath & Song 2021) <doi:10.1109/TCBB.2021.3077573>. The runtime of
these algorithms is O(K N log^2 N), where K is the number of clusters and
N is the number of circular data points. On a desktop computer using a
single processor core, millions of data points can be grouped into a few
clusters within seconds. One can apply the algorithms to characterize
events along circular DNA molecules, circular RNA molecules, and circular
genomes of bacteria, chloroplast, and mitochondria. One can also cluster
climate data along any given longitude or latitude. Periodic data
clustering can be formulated as circular clustering. The algorithms offer
a general high-performance solution to circular, periodic, or framed data
clustering.

%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}