%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  scanCP
%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:          Deep Learning–Based Changepoint Detection with Local Neural Models

License:          GPL-2
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-plotly 
BuildRequires:    R-CRAN-RSNNS 
BuildRequires:    R-CRAN-foreach 
BuildRequires:    R-CRAN-doSNOW 
BuildRequires:    R-parallel 
BuildRequires:    R-CRAN-pracma 
BuildRequires:    R-stats 
BuildRequires:    R-CRAN-magrittr 
BuildRequires:    R-CRAN-tidyr 
Requires:         R-CRAN-plotly 
Requires:         R-CRAN-RSNNS 
Requires:         R-CRAN-foreach 
Requires:         R-CRAN-doSNOW 
Requires:         R-parallel 
Requires:         R-CRAN-pracma 
Requires:         R-stats 
Requires:         R-CRAN-magrittr 
Requires:         R-CRAN-tidyr 

%description
Implementation of deep learning–based changepoint detection algorithm
designed for time series with smooth local fluctuations. The method fits
localized feed‑forward neural networks to approximate the underlying
smooth component and constructs a residual‑based detector that isolates
abrupt structural changes. A fully data‑adaptive empirical cumulative
distribution function (ECDF) based thresholding rule and refinement
procedures yield accurate changepoint localization without parametric
assumptions on noise or trend structure.

%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}