#!/bin/bash

updater() {
  export DOINO
  export TAG
  export YYYYMMDD=`yyyymmdd`
  export DOI=10.5281/zenodo.$DOINO
  export YYYY=${YYYYMMDD:0:4}
  export YYYYMM=${YYYYMMDD:0:6}
  export YYYYMMDD=${YYYYMM}22
  export MON=`date +%b`
  export MONTH=`date +%B`
  echo Tag=$TAG Date:$YYYYMMDD Year:$YYYY Mon:$MON Month:$MONTH DOI:$DOI
  export TITLE="GNU Parallel $YYYYMMDD ('$TAG')"

  if [ -z "$DOINO" ] ; then
      echo '*** Set DOINO and try again ***'
      echo 'https://zenodo.org/deposit/new (Reserve DOI)'
      echo '[Save]'
      cat .last-doitag.txt
      echo . .last-doitag.txt
      return
  fi
  if [ -z "$TAG" ] ; then
      echo '*** Set TAG and try again ***'
      cat .last-doitag.txt
      echo . .last-doitag.txt
      return
  fi
  echo "export DOINO=$DOINO" > .last-doitag.txt
  echo "export TAG=$TAG" >> .last-doitag.txt
  echo "export YYYYMMDD=$YYYYMMDD" >> .last-doitag.txt
  echo 'echo "$DOINO $YYYYMMDD ($TAG)"' >> .last-doitag.txt
  
  perl -i -pe "s/20\d\d\d\d\d\d/$YYYYMMDD/" configure.ac
  perl -i -pe "/version/ and s/20\d\d\d\d\d\d/$YYYYMMDD/" src/sql
  perl -i -pe "/version/ and s/20\d\d\d\d\d\d/$YYYYMMDD/" src/parsort
  perl -i -pe "/version/ and s/20\d\d\d\d\d\d/$YYYYMMDD/" src/env_parallel*
  perl -i -pe "/version/ and s/20\d\d\d\d\d\d/$YYYYMMDD/" src/niceload
  perl -i -pe "s/parallel-20\d\d\d\d\d\d/parallel-$YYYYMMDD/" README
  perl -i -pe '
     # Update version 20209999
     /version/ and s/20\d\d\d\d\d\d/$ENV{YYYYMMDD}/;
     # Update: 10.5281/zenodo.1146014 
     s:10.5281/zenodo.\d+:$ENV{DOI}:;
     # Update "@software{tange_2015_16303,"
     s:tange_\d+_\d+:tange_$ENV{YYYY}_$ENV{DOINO}:;
     # Update month = mar,
     s/(month\s+=\s+)\S+,",/$1$ENV{MON},",/;
     # Update title = {GNU Parallel 20200522 ('Kraftwerk')},",
     / title\s+= / and s/\{.*\}/{$ENV{TITLE}}/;
     # Tange, O. (2020, May 22). GNU Parallel 20200522 ('Kraftwerk').
     s/(Tange, O. .).*(.. )(GNU.*[)])/$1$ENV{YYYY}, $ENV{MONTH} 22$2$ENV{TITLE}/;
     ' src/parallel README
  (
  ppar --help
  ppar --citation
  grep -i 'zenodo|tange' README
  ) 2>&1 | grep -E '^  |^}|tange'
  mv ~/.parallel/will-cite ~/.parallel/will-cite.
  ppar ::: true
  mv ~/.parallel/will-cite. ~/.parallel/will-cite
}
updater