# Maintainer: Haroogan <Haroogan@gmail.com>
# Maintainer: Oscar Fuentes <ofv@wanadoo.es>

_enable_jit=$([[ "${MSYSTEM}" == CLANG* ]] || echo yes)
_sanity_check=$([[ "${MSYSTEM}" != MINGW* ]] || echo yes)

_realname=emacs
pkgbase=mingw-w64-${_realname}
pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
pkgver=30.2
pkgrel=7
pkgdesc="The extensible, customizable, self-documenting, real-time display editor (mingw-w64)"
arch=('any')
mingw_arch=('mingw64' 'ucrt64' 'clang64' 'clangarm64')
url="https://www.gnu.org/software/${_realname}/"
msys2_repository_url="https://cgit.git.savannah.gnu.org/cgit/emacs.git"
msys2_references=(
  'archlinux: emacs'
  "cpe: cpe:/a:gnu:emacs"
)
license=('spdx:GPL-3.0-or-later')
depends=("${MINGW_PACKAGE_PREFIX}-ctags"
         $([[ "$_enable_jit" == "yes" ]] && echo "${MINGW_PACKAGE_PREFIX}-libgccjit")
         "${MINGW_PACKAGE_PREFIX}-texinfo" # solves https://github.com/msys2/MINGW-packages/issues/631
         "${MINGW_PACKAGE_PREFIX}-zlib"
         "${MINGW_PACKAGE_PREFIX}-xpm-nox"
         "${MINGW_PACKAGE_PREFIX}-freetype"
         "${MINGW_PACKAGE_PREFIX}-harfbuzz"
         "${MINGW_PACKAGE_PREFIX}-jansson"
         "${MINGW_PACKAGE_PREFIX}-gnutls"
         "${MINGW_PACKAGE_PREFIX}-libtree-sitter"
         "${MINGW_PACKAGE_PREFIX}-libwinpthread")
optdepends=("${MINGW_PACKAGE_PREFIX}-giflib"
            "${MINGW_PACKAGE_PREFIX}-libjpeg-turbo"
            "${MINGW_PACKAGE_PREFIX}-libpng"
            "${MINGW_PACKAGE_PREFIX}-librsvg"
            "${MINGW_PACKAGE_PREFIX}-libtiff"
            "${MINGW_PACKAGE_PREFIX}-libxml2")
makedepends=("${MINGW_PACKAGE_PREFIX}-cc"
             "${MINGW_PACKAGE_PREFIX}-autotools"
             "${optdepends[@]}")
# Don't zip info files because the built-in info reader uses gzip to
# decompress them. gzip is not available as a mingw binary.
options=('!zipman')
source=("https://ftpmirror.gnu.org/gnu/${_realname}/${_realname}-${pkgver}.tar.xz"{,.sig}
        "001-ucrt.patch"
        "002-clang-fixes.patch"
        "003-aarch64-fixes.patch"
        "004-dll-versions.patch"
        "005-lseek.patch"
        "006-tree-sitter-0.26.patch"
        "emacs-ARM64.manifest")
# source=("https://alpha.gnu.org/gnu/${_realname}/pretest/${_realname}-${pkgver}.tar.xz"{,.sig})
sha256sums=('b3f36f18a6dd2715713370166257de2fae01f9d38cfe878ced9b1e6ded5befd9'
            'SKIP'
            '8093c4c6dc8006c11fd33a78c5aefcb2b5b1f05e5afb9bd3da7d5b146dfc112c'
            'd8732584a8f3bfd0badbd16d15384b7098e25c5df48632beb02d35f6050c358b'
            'd128982d87af1e524ae809147613168153f0e5c1efb0ef633793df47b762c9e1'
            '1fcba307b278a7794ecca4f09e7ce1a715b4ee255badd3fa376ca1ef1aa7246f'
            'b91e8a63f6afef93fad119f5b4b5bca132bb7f5564df6f26d085dcfa9e28c64c'
            '347865464b588212d77851741f2675efa852a9d5ba0d2922e23231ebaa1f2985'
            'bfe64602dbeeec85799c1156ca4f3837fdac42a076e83a4221768db3417220e1')
validpgpkeys=('28D3BED851FDF3AB57FEF93C233587A47C207910'
              '17E90D521672C04631B1183EE78DAE0F3115E06B'
              'E6C9029C363AD41D787A8EBB91C1262F01EB8D39'
              'CEA1DE21AB108493CC9C65742E82323B8F4353EE')

apply_patch_with_msg() {
  for _patch in "$@"
  do
    msg2 "Applying $_patch"
    patch -Np1 -i "${srcdir}/$_patch"
  done
}

prepare() {
  cp "${srcdir}/emacs-ARM64.manifest" "${_realname}-${pkgver}/nt"

  cd "${_realname}-${pkgver}"

  apply_patch_with_msg \
    001-ucrt.patch \
    002-clang-fixes.patch \
    003-aarch64-fixes.patch \
    004-dll-versions.patch \
    005-lseek.patch \
    006-tree-sitter-0.26.patch

  # Fail if 004-dll-versions.patch needs to be updated
  _dllname_xml=$(dlltool --identify "${MINGW_PREFIX}/lib/libxml2.dll.a")
  _dllname_tree_sitter=$(dlltool --identify "${MINGW_PREFIX}/lib/libtree-sitter.dll.a")
  grep -Fq "$_dllname_xml" lisp/term/w32-win.el || { echo "$_dllname_xml not found" >&2; return 1; }
  grep -Fq "$_dllname_tree_sitter" lisp/term/w32-win.el || { echo "$_dllname_tree_sitter not found" >&2; return 1; }

  ./autogen.sh
}

build() {
  mkdir -p "build-${MSYSTEM}" && cd "build-${MSYSTEM}"

  _extra_cfg=""
  if [[ "$_enable_jit" == "yes" ]] ; then
      _extra_cfg="$_extra_cfg --with-native-compilation=aot"
  fi

  # Required for nanosleep with clang
  export LDFLAGS="${LDFLAGS} -lpthread"
  # -D_FORTIFY_SOURCE produces a broken emacs. See
  # https://github.com/msys2/MINGW-packages/issues/17343
  # https://github.com/msys2/MINGW-packages/issues/24539
  CFLAGS=${CFLAGS//"-Wp,-D_FORTIFY_SOURCE=2"}

  ../${_realname}-${pkgver}/configure \
    --prefix="${MINGW_PREFIX}" \
    --host="${MINGW_CHOST}" \
    --build="${MINGW_CHOST}" \
    --with-modules \
    --without-dbus \
    --without-compress-install \
    --with-tree-sitter \
    $_extra_cfg

  # --without-compress-install is needed because we don't have gzip in
  # the mingw binaries and it is also required by native compilation.

  # 001-ucrt.patch breaks stdout, causing make sanity-check to fail
  if [[ "$_sanity_check" == "yes" ]] ; then
    make
  else
    make actual-all
  fi
}

package() {
  cd "build-${MSYSTEM}"
  make DESTDIR="${pkgdir}" install
  rm -f "${pkgdir}${MINGW_PREFIX}/bin/ctags.exe"
  rm -f "${pkgdir}${MINGW_PREFIX}/share/man/man1/ctags.1.gz"

  local dir="${pkgdir}${MINGW_PREFIX}/share/${_realname}"
        dir="${dir}/$(ls -1 ${dir} | grep -E '([0-9]+\.[0-9]+)(\.[0-9]+)?')/src"

  mkdir -p "${dir}"
  cd "${srcdir}/${_realname}-${pkgver}/src"
  cp *.c *.h *.m "${dir}"
}

# TODO:
# Patch `shell-file-name' default in the C source code similarly to
# `source-directory'.