%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  WaveletML
%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 Decomposition Based Hybrid Machine Learning Models

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-stats 
BuildRequires:    R-utils 
BuildRequires:    R-CRAN-wavelets 
BuildRequires:    R-CRAN-tseries 
BuildRequires:    R-CRAN-forecast 
BuildRequires:    R-CRAN-fGarch 
BuildRequires:    R-CRAN-aTSA 
BuildRequires:    R-CRAN-FinTS 
BuildRequires:    R-CRAN-LSTS 
BuildRequires:    R-CRAN-earth 
BuildRequires:    R-CRAN-caret 
BuildRequires:    R-CRAN-neuralnet 
BuildRequires:    R-CRAN-e1071 
BuildRequires:    R-CRAN-pso 
Requires:         R-stats 
Requires:         R-utils 
Requires:         R-CRAN-wavelets 
Requires:         R-CRAN-tseries 
Requires:         R-CRAN-forecast 
Requires:         R-CRAN-fGarch 
Requires:         R-CRAN-aTSA 
Requires:         R-CRAN-FinTS 
Requires:         R-CRAN-LSTS 
Requires:         R-CRAN-earth 
Requires:         R-CRAN-caret 
Requires:         R-CRAN-neuralnet 
Requires:         R-CRAN-e1071 
Requires:         R-CRAN-pso 

%description
Wavelet decomposes a series into multiple sub series called detailed and
smooth components which helps to capture volatility at multi resolution
level by various models. Two hybrid Machine Learning (ML) models
(Artificial Neural Network and Support Vector Regression have been used)
have been developed in combination with stochastic models, feature
selection, and optimization algorithms for prediction of the data. The
algorithms have been developed following Paul and Garai (2021)
<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}