#!/bin/bash

me="$(readlink -f "$0")"
myDir="$(dirname "${me}")"

verwendung() {
  >&2 echo ''
  >&2 echo "$(basename "$0")"': aktualisiere Version von Paketen in archlinuxewe'
  >&2 echo ''
  >&2 echo 'mögliche Optionen:'
  >&2 echo '  -h|--help:             zeige diese Hilfe'
  >&2 echo '  -n|--nicht $paket:     ignoriere Paket $paket'
  [ -z "$1" ] && exit 1 || exit $1
}

eval set -- "$(
  getopt -o hn: \
    --long help \
    --long nicht: \
    -n "$(basename "$0")" -- "$@" || \
    echo verwendung
)"

unset nichtPakete

while true; do
  case "$1" in
    -h|--help)
      verwendung 0
    ;;
    -n|--nicht)
      shift
      nichtPakete="$(printf '%s\n%s' "${nichtPakete}" "$1" | grep -v '^$')"
    ;;
    --)
      shift
      break
    ;;
    *)
      >&2 echo 'Hups, das sollte nicht passieren können, Option '"$1"' kenne ich doch nicht ...'
      exit -1
  esac
  shift
done

if [ $# -eq 0 ]; then
  >&2 echo 'bumping versions of all packages ...'
  pkgs="$(
    (
      "${myDir}/checkVersions" --noUpdate | \
        cut -d: -f1
      echo "${nichtPakete}"
      echo "${nichtPakete}"
    ) | \
      sort | \
      uniq -u
  )"
  [ -z "${pkgs}" ] && exit 0
  "${me}" ${pkgs}
  exit $?
elif [ $# -gt 1 ]; then
  [ -n "${nichtPakete}" ] && verwendung
  err=0
  for pkg in "$@";   do
    "${me}" "${pkg}"
    cErr=$?
    [ ${cErr} -gt ${err} ] && err=${cErr}
  done
  exit ${err}
fi
[ -n "${nichtPakete}" ] && verwendung

paket="${1%/}"
>&2 echo "bumping '${paket}' ..."

cd "${myDir}"
[ -r "${paket}/PKGBUILD" ] || exit 1
vers="$(./checkVersions -m "${paket}")"
[ -n "${remVer}" ] && vers="$(echo "${vers}" | grep -v 'remVer')"
eval ${vers}
if [ "${remVer}" == "${pkgver}" ]; then
  >&2 echo '... nothing to do here.'
  exit 0
fi

if [ -z "${remVer}" ]; then
  >&2 echo '... remote Version not determined.'
  exit 0
fi

cd "${paket}"

sed 's|^\(\s*\)pkgver=.*$|\1pkgver='"${remVer}"'|;
  s|^\(\s*\)pkgrel=.*$|\1pkgrel=1|;
  s@^\s*\(sha[[:digit:]]\+sums\|md5sums\)=@sha512sums=@;
  /^\(sha[[:digit:]]\+\|md5\)sums_/d;
'"${sedExtra}" -i PKGBUILD

sed '
  :begin;
    $!N;
    s@^sha512sums=\([^)]*\)\n\(.*\)$@sha512sums=\1 \2@;
  tbegin;
  P;
  D
' -i PKGBUILD

summen="$( \
  makepkg -g | \
    sed ':begin;
        $!N;
        s@^\(.*\)\n\(.*\)$@\1\\n\2@;
      tbegin;
      P;
      D
    ' \
)"
sed 's|sha512sums=.*$|'"${summen}"'|' -i PKGBUILD

(
  if ! yes '' | "${myDir}/testeAbhaengigkeiten" "${paket}"; then
    was=''
    ec[0]='jJyY'
    ec[1]='nN'
    while [[ "${ec[0]}" != *"${was}"* ]] && [[ "${ec[1]}" != *"${was}"* ]] || [ -z "${was}" ]; do
      read -p 'Trotzdem weiter machen (j/y/n)? ' was
    done
    [[ "${ec[0]}" == *"${was}"* ]]
  fi
) || exit $?

if [ "${paket}" != 'qgis-git' ]; then
  rm -rf "src" "pkg"
  sudo pacman -Sy
  makepkg -fcsr --noconfirm --asdeps || exit 1
  namcap ${paket}-${remVer}-1-*.pkg.tar.xz || exit 1
fi
git commit PKGBUILD -m "${paket} ${pkgver}-${pkgrel} -> ${remVer}-1"

>&2 echo '... done'