#!/bin/bash
#
# Email backup restoration.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program.  If not, see
# <http://www.gnu.org/licenses/>.

# Load.
source $APP_BASE/lib/hydra/functions || exit 1
hydra_config_load

# Parameters.
DATE="`date +%Y%m%d`"
EMAIL_DIR="/var/mail/virtual"

# Check restore strategy.
if [ "$1" == "localhost" ] || [ "$1" == "`facter hostname`" ]; then
  hydra_backup_environment_local
else
  hydra_backup_environment_remote $1 restore
fi

# Check if folder exist on the backup.
if [ ! -d "$RESTOREDIR/$EMAIL_DIR" ]; then
  echo "Email folder does not exist: $RESTOREDIR/$EMAIL_DIR"
  exit 1
fi

# Set git user.
if hydra_check_user vmail; then
  EMAIL_USER="vmail"
else
  EMAIL_USER="root"
fi

# Set git group.
if hydra_check_group vmail; then
  EMAIL_GROUP="vmail"
else
  EMAIL_GROUP="root"
fi

# TODO: Backup it?
#hydractl backup-email

# Restore email folder from backup.
#
# Symlink creation on site instances like drupal should be done
# already by backup-restore-site.
for folder in `ls $RESTOREDIR/$EMAIL_DIR`; do
  if [ -d "$EMAIL_DIR/$folder" ]; then
    echo "Email for user $email already exists on $EMAIL_DIR/$folder!"
  else
    echo "Processing $EMAIL_DIR/$folder..."
    cp -a $RESTOREDIR/$EMAIL_DIR/$folder $EMAIL_DIR/$folder
  fi
done

# Fix permissions.
chown -R $EMAIL_USER.$EMAIL_GROUP $EMAIL_DIR