#!/bin/bash

if [[ ! -d /tmp/output/${OS_IDENTIFIER} ]]; then
  mkdir -p "/tmp/output/${OS_IDENTIFIER}"
fi

# R 3.x requires PCRE1. On Debian 12, R 3.x also requires PCRE2 for Pango support.
pcre_libs='- libpcre2-dev'
if [[ "${R_VERSION}" =~ ^3 ]]; then
  pcre_libs='- libpcre2-dev
- libpcre3-dev'
fi

deflate_libs='# - libdeflate-dev'
if grep -q '^LIBS *=.*[-]ldeflate' ${R_INSTALL_PATH}/lib/R/etc/Makeconf; then
    deflate_libs='- libdeflate-dev'
fi

cat <<EOF > /tmp/nfpm.yml
name: r-${R_VERSION}
version: 1
version_schema: none
section: gnu-r
arch: $(dpkg --print-architecture)
priority: optional
maintainer: Posit Software, PBC <https://github.com/rstudio/r-builds>
description: |
  GNU R statistical computation and graphics system
vendor: Posit Software, PBC
homepage: https://www.r-project.org
license: GPL-2
deb:
  fields:
    Bugs: https://github.com/rstudio/r-builds/issues
depends:
- ca-certificates
- g++
- gcc
- gfortran
- libbz2-dev
- libc6
- libcairo2
- libcurl4-openssl-dev
${deflate_libs}
- libglib2.0-0
- libgomp1
- libicu-dev
- liblzma-dev
- libopenblas-dev
- libpango-1.0-0
- libpangocairo-1.0-0
- libpaper-utils
${pcre_libs}
- libpng16-16
- libreadline8
- libtcl8.6
- libtiff6
- libtk8.6
- libx11-6
- libxt6
- make
- ucf
- unzip
- zip
- zlib1g-dev
contents:
- src: ${R_INSTALL_PATH}
  dst: ${R_INSTALL_PATH}
EOF

nfpm package \
  -f /tmp/nfpm.yml \
  -p deb \
  -t "/tmp/output/${OS_IDENTIFIER}"

export PKG_FILE=$(ls /tmp/output/${OS_IDENTIFIER}/r-${R_VERSION}*.deb | head -1)