%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  EXPAR
%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:          Fitting of Exponential Autoregressive (EXPAR) Model

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


BuildRequires:    R-devel
Requires:         R-core
BuildArch:        noarch
BuildRequires:    R-CRAN-forecast 
BuildRequires:    R-stats 
Requires:         R-CRAN-forecast 
Requires:         R-stats 

%description
The amplitude-dependent exponential autoregressive (EXPAR) time series
model, initially proposed by Haggan and Ozaki (1981) <doi:10.2307/2335819>
has been implemented in this package. Throughout various studies, the
model has been found to adequately capture the cyclical nature of
datasets. Parameter estimation of such family of models has been tackled
by the approach of minimizing the residual sum of squares (RSS). Model
selection among various candidate orders has been implemented using
various information criteria, viz., Akaike information criteria (AIC),
corrected Akaike information criteria (AICc) and Bayesian information
criteria (BIC). An illustration utilizing data of egg price indices has
also been provided.

%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}