%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  tsforecast
%global packver   1.2.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.2.1
Release:          1%{?dist}%{?buildtag}
Summary:          Time Series Forecasting Functions

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


BuildRequires:    R-devel >= 3.5.0
Requires:         R-core >= 3.5.0
BuildArch:        noarch
BuildRequires:    R-CRAN-ggplot2 
BuildRequires:    R-CRAN-lubridate 
BuildRequires:    R-CRAN-forecast 
BuildRequires:    R-CRAN-tseries 
BuildRequires:    R-CRAN-scales 
Requires:         R-CRAN-ggplot2 
Requires:         R-CRAN-lubridate 
Requires:         R-CRAN-forecast 
Requires:         R-CRAN-tseries 
Requires:         R-CRAN-scales 

%description
Fundamental time series forecasting models such as autoregressive
integrated moving average (ARIMA), exponential smoothing, and simple
moving average are included. For ARIMA models, the output follows the
traditional parameterisation by Box and Jenkins (1970, ISBN: 0816210942,
9780816210947). Furthermore, there are functions for detailed time series
exploration and decomposition, respectively. All data and result
visualisations are generated by 'ggplot2' instead of conventional R
graphical output. For more details regarding the theoretical background of
the models see Hyndman, R.J. and Athanasopoulos, G. (2021)
<https://otexts.com/fpp3/>.

%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}