%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  WaveletLSTM
%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:          Wavelet Based LSTM 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-caret 
BuildRequires:    R-CRAN-dplyr 
BuildRequires:    R-CRAN-caretForecast 
BuildRequires:    R-CRAN-tseries 
BuildRequires:    R-stats 
BuildRequires:    R-CRAN-wavelets 
BuildRequires:    R-CRAN-TSLSTM 
Requires:         R-CRAN-caret 
Requires:         R-CRAN-dplyr 
Requires:         R-CRAN-caretForecast 
Requires:         R-CRAN-tseries 
Requires:         R-stats 
Requires:         R-CRAN-wavelets 
Requires:         R-CRAN-TSLSTM 

%description
A wavelet-based LSTM model is a type of neural network architecture that
uses wavelet technique to pre-process the input data before passing it
through a Long Short-Term Memory (LSTM) network. The wavelet-based LSTM
model is a powerful approach that combines the benefits of wavelet
analysis and LSTM networks to improve the accuracy of predictions in
various applications. This package has been developed using the algorithm
of Anjoy and Paul (2017) and Paul and Garai (2021)
<DOI:10.1007/s00521-017-3289-9> <doi:10.1007/s00500-021-06087-4>.

%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}