#/bin/bash

if [ $# -ne 1 ]; then
  echo "Usage: $0 username"
  exit 1
fi

USERNAME=$1

CYRUS_HOST=192.168.1.2
# these two paths are on $CYRUS_HOST
CYRUS_SPOOL=/data/imap/spool
CYRUS_CONFIG=/data/imap/config/user
CYRUS_SIEVE=/data/imap/config/sieve
CYRUS_CVT=/usr/local/cyrus/bin/cvt_cyrusdb

C2C=/usr/local/src/cyrus2courier/src/cyrus2courier
DOVECOT_SPOOL=/data/dovecot/store
WORKDIR=/data/conversion
cd $WORKDIR

cleanup() {
  cd $WORKDIR
  rm -rf $USERNAME
}
cleanup_trap() {
  echo "exiting on signal"
  cleanup
  exit 1
}
trap cleanup_trap 1 2 3 6

username_letter=${USERNAME:0:1}
user_config=`echo $CYRUS_CONFIG/$username_letter | sed -e 's|^/||'`
user_spool=`echo $CYRUS_SPOOL/$username_letter/user | sed -e 's|^/||'`
user_sieve=`echo $CYRUS_SIEVE/$username_letter | sed -e 's|^||'`

mkdir $USERNAME
cd $USERNAME
# recreate cyrus layout
mkdir -p $user_config $user_spool

# convert seen and sub files to flat, copy to local config directory for user
ssh $CYRUS_HOST "$CYRUS_CVT /$user_config/$USERNAME.seen skiplist /$user_config/$USERNAME.seen.flat flat"
scp $CYRUS_HOST:/$user_config/$USERNAME.seen.flat $user_config/$USERNAME.seen
ssh $CYRUS_HOST "$CYRUS_CVT /$user_config/$USERNAME.sub skiplist /$user_config/$USERNAME.sub.flat flat"
scp $CYRUS_HOST:/$user_config/$USERNAME.sub.flat $user_config/$USERNAME.sub

# copy mail
# tars /data/imap/spool/d/user/dpeterson and extracts to (pwd)/data/imap/spool/d/user/dpeterson
# blowfish should be faster
ssh -c blowfish $CYRUS_HOST "tar cf - /$user_spool/$USERNAME" | tar xf -

# run cyrus2courier
mkdir maildir
# will drop mail in $WORKDIR/$USERNAME/maildir/$USERNAME -- lame but that's how it works
$C2C --subscribe-dir=$WORKDIR/$USERNAME/$user_config --seen-dir=$WORKDIR/$USERNAME/$user_config \
  -d $WORKDIR/$USERNAME/$user_spool $WORKDIR/$USERNAME/maildir $USERNAME

if [ $? -ne 0 ]; then
  echo "problem with cyrus2courier"
  cleanup
  exit 1
fi

# copy sieve
ssh $CYRUS_HOST "test -d /$user_sieve/$USERNAME"
if [ $? -eq 0 ]; then
  mkdir sieve
  cd sieve
  ssh $CYRUS_HOST "cd /$user_sieve/$USERNAME && tar cf - ." | tar xf -
  # remove compiled scripts
  rm *.bc
  cd ..
  mv sieve maildir/$USERNAME/pysieved
  cd maildir/$USERNAME
  if [ -h pysieved/defaultbc ]; then
    default_script=`readlink pysieved/defaultbc`
    default_script=`basename $default_script .bc`
    default_script="$default_script.script"
    
    # should probably go back through with find to make sure this worked
    ln -s pysieved/$default_script .dovecot.sieve
    rm pysieved/defaultbc
  fi
  cd ../..
fi

# look up id number
uid_number=`ldapsearch -LLL -h entropy -x -b 'dc=yumaed,dc=org' "(uid=$USERNAME)" uidNumber | grep uidNumber | awk '{ print $2 }'`
if [ -z "$uid_number" ]; then
  echo "couldn't find uid number"
  cleanup
  exit 1
fi

# move new maildir to dovecot spool
chown -R $uid_number:2002 maildir/$USERNAME
mv maildir/$USERNAME $DOVECOT_SPOOL/$uid_number

cleanup

# update database