#!/bin/bash

#shellcheck disable=SC2154
if [ -x "$UPAC_settingsd/10_aide_sourceslist" ]; then
  #shellcheck disable=SC1090
  . "$UPAC_settingsd/10_aide_sourceslist"
fi
VARDIR="var/lib/apt"
LISTSDIR="$VARDIR/lists"
CACHEDIR="var/cache/apt"
ARCHIVESDIR="$CACHEDIR/archives"
SYSTEMDDIR="var/lib/systemd/timers"
LOGDIR="var/log/apt"
IGNORE_ARCHIVES=""
IGNORE_FRQCHG=""

if [ -r "$UPAC_settingsd/31_aide_apt_settings" ]; then
  # pull in configuration
  #shellcheck disable=SC1090
  . "$UPAC_settingsd/31_aide_apt_settings"
fi

printf "@@define APT_TRANSLATIONS (ca|cs|da|de|de_DE|en|eo|es|eu|fi|fr|hr|hu|id|it|ja|km|ko|nb|nl|pl|pt|pt_BR|ro|ru|sk|sr|sv|uk|vi|zh|zh_CN|zh_TW)\\n"
printf "@@define APT_ARCH (@@{ARCH}|all)\\n"

RE="^\\(deb\\|deb-src\\)[[:space:]]\\+\\(\\(\\[[^]]\\+\\]\\)[[:space:]]\\+\\)\\?\\([^[:space:]]\\+\\)[[:space:]]\\+\\([^[:space:]]\\+\\)[[:space:]]\\+\\(.*\\)$"
#shellcheck disable=SC2086
cat ${SOURCESLIST} /dev/null | sed 's/ #.*$//' | while read -r line; do
  deb="$(echo "${line}" | sed -n "/^deb/{s/${RE}/\\1/;p;}")"
  uri="$(echo "${line}" | sed -n "/^deb/{s/${RE}/\\4/;p;}")"
  dist="$(echo "${line}" | sed -n "/^deb/{s/${RE}/\\5/;p;}")"
  comp="$(echo "${line}" | sed -n "/^deb/{s/${RE}/\\6/;p;}")"
  #shellcheck disable=SC2001
  PROTOCOL="$(echo "${uri}" | sed 's|\([^:]\+\).*|\1|')"
  if echo "${PROTOCOL}" | grep -qE '(https?|ftp)'; then
    HOST="$(echo "${uri}" | sed -e 's|.*//\([-_.[:alnum:]]\+\).*|\1|' -e 's|\.|\\\\.|g')"
    HOSTPATH="$(echo "${uri}" | sed -e 's|.*//[^/[:space:]]\+/\?||;s|/$||;s|/|_|g;s|^\(.\+\)$|_\1|' -e 's|\.|\\\\.|g')"
    dist="${dist//\//_}"
    if [ -n "${DEBUG}" ]; then
      echo "${line}" | sed -n "/^deb/{s/${RE}/1: \\1, 2: \\2, 3: \\3, 4: \\4, 5: \\5, 6: \\6/;p;}"
      printf "# deb: %s\\n" "${deb}"
      printf "# uri %s\\n" "${uri}"
      printf "# dist: %s\\n" "${dist}"
      printf "# comp: %s\\n" "${comp}"
      printf "# HOST %s\\n" "${HOST}"
      printf "# HOSTPATH %s\\n" "${HOSTPATH}"
    fi
    if [ "$deb" = "deb" ]; then
      for c in $comp; do
	printf "/%s/%s%s_dists_%s_%s_binary-@@{APT_ARCH}_Packages(\\\\\\\\.diff_Index)?$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}" "${c}"
	printf "/%s/%s%s_dists_%s_%s_Contents-@@{APT_ARCH}((\\\\\\\\.diff_Index|\\\\\\\\.lz4))?$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}" "${c}"
        printf "@@ifdef FOREIGN_ARCHES\\n"
	printf "/%s/%s%s_dists_%s_%s_binary-@@{FOREIGN_ARCHES}_Packages(\\\\\\\\.diff_Index)?$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}" "${c}"
        printf "@@endif\\n"
        printf "/%s/%s%s_dists_%s_(InRelease|Release(\\\\\\\\.gpg)?)$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}"
	printf "/%s/%s%s_dists_%s_%s_i18n_Translation-@@{APT_TRANSLATIONS}(\\\\\\\\.diff_Index)?$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}" "${c}"
      done
      printf "!/%s/partial/%s%s_dists_%s_Release\\\\\\\\.gpg\\\\\\\\.reverify$ f\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}"
    elif [ "$deb" = "deb-src" ]; then
      for c in $comp; do
        printf "/%s/%s%s_dists_%s_%s_source_Sources(\\\\\\\\.diff_Index)?$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}" "${c}"
        printf "/%s/%s%s_dists_%s_(InRelease|Release(\\\\\\\\.gpg)?)$ f VarFile\\n" "${LISTSDIR}" "${HOST}" "${HOSTPATH}" "${dist}"
      done
    fi
  else
    : # other protocols are not supported. If you feel like they should
    : # please give a good reason and probably a patch.
  fi
  printf "\\n\\n"
done

printf "/%s(/(auxfiles|partial))?$ d VarDir\\n" "${LISTSDIR}"
printf "/%s/lock$ f VarFile\\n" "${LISTSDIR}"
printf "/%s/periodic/(download-upgradeable|update)-stamp$ f VarTime\\n" "${VARDIR}"
printf "/%s/(daily_lock|extended_states)$ f VarFile\\n" "${VARDIR}"
printf "/%s$ d VarDir\\n" "${VARDIR}"
printf "\\n"
printf "/%s/stamp-apt-daily(-upgrade)?\\\\\\\\.timer$ f VarFile\\n" "${SYSTEMDDIR}"
printf "\\n"
printf "/%s/(term|history)\\\\\\\\.log$ f Log\\n" "${LOGDIR}"
printf "/%s/(term|history)\\\\\\\\.log\\\\\\\\.1\\\\\\\\.@@{LOGEXT}$ f LoSerMemberLog\\n" "${LOGDIR}"
printf "/%s/(term|history)\\\\\\\\.log\\\\\\\\.([2-9]|1[0-1])\\\\\\\\.@@{LOGEXT}$ f SerMemberLog\\n" "${LOGDIR}"
printf "/%s/(term|history)\\\\\\\\.log\\\\\\\\.12\\\\\\\\.@@{LOGEXT}$ f HiSerMemberLog\\n" "${LOGDIR}"
printf "/%s/eipp\\\\\\\\.log\\\\\\\\.xz$ f VarFile\\n" "${LOGDIR}"
printf "/%s$ d VarDir\\n" "${LOGDIR}"
printf "\\n"
printf "/var/backups/apt\\\\\\\\.extended_states\\\\\\\\.0$ f LowLog\\n"
printf "/var/backups/apt\\\\\\\\.extended_states\\\\\\\\.1\\\\\\\\.@@{LOGEXT}$ f LoSerMemberLog\\n"
printf "/var/backups/apt\\\\\\\\.extended_states\\\\\\\\.[2345]\\\\\\\\.@@{LOGEXT}$ f SerMemberLog\\n"
printf "/var/backups/apt\\\\\\\\.extended_states\\\\\\\\.6\\\\\\\\.@@{LOGEXT}$ f HiSerMemberLog\\n"

if [ "$IGNORE_ARCHIVES" = "yes" ]; then
  printf "!/%s/[-[:alnum:]%%\.~_+]+_@@{APT_ARCH}\\\\\\\\.deb$ f\\n" "${ARCHIVESDIR}"
  printf "@@ifdef FOREIGN_ARCHES\\n"
  printf "!/%s/[-[:alnum:]%%\.~_+]+_@@{FOREIGN_ARCHES}\\\\\\\\.deb$ f\\n" "${ARCHIVESDIR}"
  printf "@@endif\\n"
fi

if [ "$IGNORE_FRQCHG" = "yes" ]; then
  printf "/%s(/partial|/lock)?$ d VarDir\\n" "${ARCHIVESDIR}"
  printf "!/%s/(src)?pkgcache\\\\\\\\.bin$ f\\n" "${CACHEDIR}"
  printf "/%s$ d VarDir\\n" "${CACHEDIR}"
fi
