#!/bin/bash

# to be executed on nlopc43 ... sry for all the hard-coded stuff

set -e

archive='/mnt/archlinux32archive'
destination='/mnt/archlinux32/archisos'
base_dir=$(
  readlink -e "${0%/*}"
)

case "$(hostname -s)" in
  'nlopc43')
    echo 'build isos on nlopc46 ...'
    rsync "$0" nlopc46.ioq.uni-jena.de:/tmp/
    isos=$(
      ssh nlopc46.ioq.uni-jena.de "/tmp/${0##*/}"
    )
    echo '... done.'

    if [ -z "${isos}" ]; then
      echo 'no isos were built!?'
      exit 1
    fi

    echo 'sign and upload isos ...'

    tmp_dir=$(mktemp -d)
    trap 'cd "${base_dir}"; rm -rf --one-file-system "${tmp_dir}"' EXIT

    rsync -av $(printf 'nlopc46.ioq.uni-jena.de:%s\n' ${isos}) "${tmp_dir}/"

    isos=$(
      printf '%s\n' "${isos}" | \
        sed 's,^.*/,,'
    )

    mountpoint -q "${archive}" || sudo mount "${archive}"
    mountpoint -q "${destination%/*}" || sudo mount "${destination%/*}"

    cd "${tmp_dir}"
    cp "${destination}/sha512sums" .
    cp "${destination}/md5sums" .

    date=$(
      printf '%s\n' "${isos}" \
      | sed 's/^.*-\([^-]\+\)-[^-]\+$/\1/' \
      | sort -u
    )

    for iso in ${isos}; do
      gpg --local-user '33CA3597B0D161AAE4173F65C17F1214114574A4' --batch --no-tty --detach-sign "${iso}" </dev/null
    done
    sha512sum ${isos} >> sha512sums
    md5sum ${isos} >> md5sums
    sort -k2,2 sha512sums --output sha512sums
    sort -k2,2 md5sums --output md5sums

    cp $(
      printf '%s\n' ${isos}
      printf '%s.sig\n' ${isos}
    ) sha512sums md5sums "${destination}/"

    date +%s > "${destination%/*}/lastupdate"

    "${base_dir}/al32-mktorrent.sh" -d "${date}" -t "hefur@archlinux32:"

    mv $(
      printf '%s.torrent\n' ${isos}
    ) feed_dual.rss feed_i686.rss "${destination}/"

#      --torrent-seed-dual "https://pool.mirror.archlinux32.org/archisos/archlinux32-${date}-dual.iso.torrent" \
#
    git -C "${base_dir}/../archweb32" pull --ff-only
    "${base_dir}/update-website" \
      --torrent-seed-i686 "https://pool.mirror.archlinux32.org/archisos/archlinux32-${date}-i686.iso.torrent" \
      --update-iso
    git -C "${base_dir}/../archweb32" commit 'download/index.html' -m 'download/index.html: new isos ('"${date}"')'
    git -C "${base_dir}/../archweb32" push

    find "${destination}" \( -name 'archlinux32-*' -o -name 'archlinux-*' \) -not -name 'archlinux32-'"${date}"'-*' \
    | while read -r to_delete; do
      if diff -q "${to_delete}" "${archive}/iso/${to_delete#${destination}/}" >/dev/null; then
        rm "${to_delete}"
        printf '%s\n' "${to_delete}" \
        | sed '
          s@^.*/@@
          s/\./\\./g
          s@.*@/  \0$/d@
        '
      fi
    done \
    >> "${tmp_dir}/delete-regex"
    sed -i -f "${tmp_dir}/delete-regex" "${destination}/sha512sums"
    sed -i -f "${tmp_dir}/delete-regex" "${destination}/md5sums"

    echo '... done.'
    ;;
  'nlopc46')
    if [ "$(whoami)" = 'root' ]; then
      cd "/usr/share/archiso/configs/$1"
      tmp_dir=$(mktemp -d)
      trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
      arch=i686 setarch i686 mkarchiso -o "$2" -w "${tmp_dir}" -v /usr/share/archiso/configs/$1
      chown "${SUDO_USER}:users" "$2/"archlinux*.iso
      exit
    fi

    rm -rf --one-file-system ~/archisos
    mkdir ~/archisos

    >&2 echo 'build i686-iso ...'

    >&2 sudo "$0" releng32 ~/archisos/

    >&2 echo '... done.'

#    >&2 echo 'build dual-iso ...'

#    >&2 sudo "$0" releng-dual ~/archisos/

#    >&2 echo '... done.'
    
    find ~/archisos/ -type f
  ;;
  *)
    >&2 echo 'execute on nlopc43 (or nlopc46) - sry'
    exit 1
  ;;
esac