#!/bin/bash

# Copy the graphs notfound.png into place
cp /opt/zendto/www/images/notfound.png /var/zendto/rrd/notfound.png
chmod a+rX /var/zendto/rrd /var/zendto/rrd/notfound.png

# Clean the caches in case Smarty has been upgraded
rm -rf /var/zendto/templates_c/*php >/dev/null 2>&1
rm -rf /var/zendto/cache/*php >/dev/null 2>&1

# Get rid of the obsolete caches if still present
rm -rf /opt/zendto/templates_c >/dev/null 2>&1
rm -rf /opt/zendto/myzendto.templates_c >/dev/null 2>&1
rm -rf /var/zendto/myzendto.templates_c >/dev/null 2>&1
rm -rf /opt/zendto/cache >/dev/null 2>&1

# Throw away any relics of MyZendTo
rm -rf /opt/zendto/myzendto.www >/dev/null 2>&1
rm -rf /opt/zendto/myzendto.templates >/dev/null 2>&1

# Work out the user and group Apache runs as.
# Attempts are:
# 1. Apache's envvars file
# 2. httpd.conf
# 3. "www-data"
[ -f /etc/apache2/envvars ] && source /etc/apache2/envvars
WWWUSER="$( grep -ri --no-filename '^\s*User\s\s*' /etc/httpd /etc/apache2 2>/dev/null | head -1 | sed -e 's/#.*$//' | awk '{ print $2 }' )"
WWWGROUP="$( grep -ri --no-filename '^\s*Group\s\s*' /etc/httpd /etc/apache2 2>/dev/null | head -1 | sed -e 's/#.*$//' | awk '{ print $2 }' )"
# If they were references to shell varialbes from envvars, interpret them
WWWUSER="$( eval echo "$WWWUSER" )"
WWWGROUP="$( eval echo "$WWWGROUP" )"
# Fallbacks
if [ "x$WWWUSER" = "x" ]; then
  WWWUSER='www-data'
fi
if [ "x$WWWGROUP" = "x" ]; then
  WWWGROUP='www-data'
fi

# Construct /var/zendto and others.
# Cannot pre-determine the ownership as we can only read this from
# httpd.conf, when we are on the target system and installing ourselves.
mkdir -p /var/zendto /var/log/zendto
touch /var/log/zendto/zendto.log
chown root:"$WWWGROUP" /var/zendto /var/log/zendto /var/log/zendto/zendto.log
chgrp "$WWWGROUP" /var/zendto /var/log/zendto /var/log/zendto/zendto.log
chmod 0775 /var/zendto /var/log/zendto
chmod 0664 /var/log/zendto/zendto.log
for F in incoming dropoffs rrd library cache templates_c
do
  if [ ! -d /var/zendto/$F/ ]; then
    mkdir -p /var/zendto/$F
    chown "$WWWUSER":"$WWWGROUP" /var/zendto/$F
    chmod 0755 /var/zendto/$F
  fi
done

# Apply schema fixes
/usr/bin/php /opt/zendto/sbin/cleanup.php /opt/zendto/config/preferences.php --no-purge >/dev/null
# And ensure permissions are correct!
chgrp "$WWWGROUP" /var/log/zendto/zendto.log
chmod g+w /var/log/zendto/zendto.log

# Little oddities
if [ -f /var/zendto/zendto.sqlite ]; then
  chown "$WWWUSER"  /var/zendto/zendto.sqlite
  chgrp "$WWWGROUP" /var/zendto/zendto.sqlite
  chmod ug+w        /var/zendto/zendto.sqlite
fi

# If ZENDTOPREFS is not set in /etc/environment, add it
if ! grep -q '^ZENDTOPREFS=' /etc/environment; then
  echo 'ZENDTOPREFS="/opt/zendto/config/preferences.php"' >> /etc/environment
fi

# Make sure the necessary locales all exist for the languages we ship
for L in $( grep -l '^msgid' /opt/zendto/config/locale/supplied/*_*.zendto.po )
do
  # We just want the initial bit of the filename up to the 1st dot
  M="$( basename "$L" | sed -e 's/\..*$//' )"
  # Add the language, but don't locale-gen or makelanguages
  /opt/zendto/bin/addlanguage "$M" NOMAKELANGUAGES
done
locale-gen
/opt/zendto/bin/makelanguages 2>/dev/null

echo
echo 'If you are upgrading from a previous version, please make sure your'
echo 'config files in /opt/zendto/config/* are all up to date.'
echo
echo 'To help you, there is a tool for upgrading the preferences.php and'
echo 'zendto.conf files.'
echo 'Simply run'
echo '    sudo /opt/zendto/bin/upgrade'
echo
echo 'To edit any text in the web interface, or add/edit a language,'
echo 'see'
echo '    http://zend.to/translators.php'
echo

exit 0