# Maintainer: Antonio Rojas <arojas@archlinux.org>
# Contributor:  TDY <tdy@archlinux.info>
# Contributor: Rémy Oudompheng <oudomphe@clipper.ens.fr>

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - fix semigroups.so rpath fix for aarch64

pkgbase=gap
pkgname=(gap gap-doc gap-packages)
pkgver=4.10.0
pkgrel=4
pkgdesc="Groups, Algorithms, Programming: a system for computational discrete algebra"
arch=(x86_64)
url="https://www.gap-system.org/"
license=(GPL)
source=("https://www.gap-system.org/pub/gap/gap-${pkgver%.*}/tar.gz/gap-$pkgver.tar.gz" gap.sh
        gap-sagemath-1.patch gap-sagemath-2.patch gap-sagemath-3.patch)
sha256sums=('314b8d949c0bb01ef8bee199b29571d42714df660aba0d76ded254f58295904f'
            '143fb8a79a52c007903cce13407850df309ef803a9b00398d05169355917de46'
            'e5f0a71ae5cdcc6596330834ef9fb0a0183890a9cf874a7eb88b819b0030a33b'
            '3b66e6b320f56119b1d8eb804a94ee3a7ea71af10bd4f99a61bae32840e62c87'
            '511414a8d085a9ef9de5f921fdd45e4bbb3f33c2d88b821da06dfc267c182ddc')
makedepends=(libxaw givaro mpfi normaliz boost c-xsc zeromq fplll polymake wget chrpath)

prepare() {
  cd gap-$pkgver

# Use system normaliz
  sed -e '/build-normaliz.sh/d' -i bin/BuildPackages.sh
# Disable anupq package, it's i686 only
  rm -r pkg/anupq-*

# Patches to make sagemath work with GAP's libgap
  patch -p1 -i ../gap-sagemath-1.patch
  patch -p1 -i ../gap-sagemath-2.patch
  patch -p1 -i ../gap-sagemath-3.patch
}

build() {
  cd gap-$pkgver
  ./configure --prefix=/usr --with-gmp=system
  make

  cd pkg
  export MAKEFLAGS='-j1' # Fix build of carat package
  ../bin/BuildPackages.sh
}

_standardpkgs=(GAPDoc-* primgrp-* SmallGrp-* transgrp atlasrep autpgrp-* alnuth-* crisp-* ctbllib FactInt-* fga irredsol-* laguna-*
               polenta-* polycyclic-* resclasses-* sophus-* tomlib-*)

package_gap() {
  depends=(gmp zlib)
  optdepends=('gap-packages: extra packages' 'gap-doc: documentation')
  conflicts=(libgap)
  replaces=(gap-data libgap gap-4.8 gap-4.8-data)
  cd gap-$pkgver

  make DESTDIR="$pkgdir" install-headers install-libgap
# Install missing header
  install -Dm644 gen/config.h -t "$pkgdir"/usr/include/gap

  mkdir -p "$pkgdir"/usr/{bin,lib/gap/pkg}
  cp -r grp lib "$pkgdir"/usr/lib/gap
  for _pkg in ${_standardpkgs[@]}; do
    cp -r pkg/$_pkg "$pkgdir"/usr/lib/gap/pkg
  done
  install -Dm755 gap -t "$pkgdir"/usr/lib/gap
# Install launcher script
  install -Dm755 "$srcdir"/gap.sh "$pkgdir"/usr/bin/gap
}

package_gap-doc() {
  depends=(gap)
  replaces=(gap-4.8-doc)
  pkgdesc="Documentation for GAP"
  cd gap-$pkgver

  mkdir -p "$pkgdir"/usr/lib/gap
  cp -r doc "$pkgdir"/usr/lib/gap
}

package_gap-packages() {
  depends=(gap)
  replaces=(gap-4.8-packages)
  optdepends=('normaliz: Normaliz interface package' 'libxaw: xgap package' 'c-xsc: float package' 'mpfi: float package'
              'libmpc: float package' 'fplll: float package' 'zeromq: ZeroMQ interface package'
              'polymake: Polymake interface package' 'curl: curl interface package')
  pkgdesc="Extra packages for GAP"
  cd gap-$pkgver

  mkdir -p "$pkgdir"/usr/lib/gap
  cp -r pkg "$pkgdir"/usr/lib/gap

# provided by main gap package
  for _pkg in ${_standardpkgs[@]}; do
    rm -r "$pkgdir"/usr/lib/gap/pkg/$_pkg
  done

# fix RPATH
  if [[ $CARCH == "aarch64" ]]; then
    chrpath -r \$ORIGIN/../lib/ "$pkgdir"/usr/lib/gap/pkg/semigroups-*/bin/aarch64-unknown-linux-gnu-default64/semigroups.so
    chrpath -d "$pkgdir"/usr/lib/gap/pkg/NormalizInterface-*/bin/aarch64-unknown-linux-gnu-default64/NormalizInterface.so
  fi

# remove leftover binaries
  find "$pkgdir"/usr/lib/gap/pkg -name .libs | xargs rm -r
}