#!/bin/bash

# Wait for MySQL to warm-up
while ! mysqladmin status --socket=/var/run/mysqld/mysqld.sock -u${DBUSER} -p${DBPASS} --silent; do
  echo "Waiting for database to come up..."
  sleep 2
done

# Wait until port becomes free and send sig
until ! nc -z sogo-mailcow 20000;
do
  killall -TERM sogod
  sleep 3
done

# Wait for updated schema
DBV_NOW=$(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT version FROM versions WHERE application = 'db_schema';" -BN)
DBV_NEW=$(grep -oE '\$db_version = .*;' init_db.inc.php | sed 's/$db_version = //g;s/;//g' | cut -d \" -f2)
while [[ "${DBV_NOW}" != "${DBV_NEW}" ]]; do
  echo "Waiting for schema update..."
  DBV_NOW=$(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT version FROM versions WHERE application = 'db_schema';" -BN)
  DBV_NEW=$(grep -oE '\$db_version = .*;' init_db.inc.php | sed 's/$db_version = //g;s/;//g' | cut -d \" -f2)
  sleep 5
done
echo "DB schema is ${DBV_NOW}"

# Recreate view
if [[ "${MASTER}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
  echo "We are master, preparing sogo_view..."
  mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "DROP VIEW IF EXISTS sogo_view"
  while [[ ${VIEW_OK} != 'OK' ]]; do
    mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} << EOF
CREATE VIEW sogo_view (c_uid, domain, c_name, c_password, c_cn, mail, aliases, ad_aliases, ext_acl, kind, multiple_bookings) AS 
SELECT
   mailbox.username,
   mailbox.domain,
   mailbox.username,
   IF(JSON_UNQUOTE(JSON_VALUE(attributes, '$.force_pw_update')) = '0', IF(JSON_UNQUOTE(JSON_VALUE(attributes, '$.sogo_access')) = 1, password, '{SSHA256}A123A123A321A321A321B321B321B123B123B321B432F123E321123123321321'), '{SSHA256}A123A123A321A321A321B321B321B123B123B321B432F123E321123123321321'),
   mailbox.name,
   mailbox.username,
   IFNULL(GROUP_CONCAT(ga.aliases ORDER BY ga.aliases SEPARATOR ' '), ''),
   IFNULL(gda.ad_alias, ''),
   IFNULL(external_acl.send_as_acl, ''),
   mailbox.kind,
   mailbox.multiple_bookings
FROM
   mailbox
   LEFT OUTER JOIN
      grouped_mail_aliases ga
      ON ga.username REGEXP CONCAT('(^|,)', mailbox.username, '($|,)')
   LEFT OUTER JOIN
      grouped_domain_alias_address gda
      ON gda.username = mailbox.username
   LEFT OUTER JOIN
      grouped_sender_acl_external external_acl
      ON external_acl.username = mailbox.username
WHERE
   mailbox.active = '1'
GROUP BY
   mailbox.username;
EOF
    if [[ ! -z $(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "SELECT 'OK' FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'sogo_view'") ]]; then
      VIEW_OK=OK
    else
      echo "Will retry to setup SOGo view in 3s..."
      sleep 3
    fi
  done
else
  while [[ ${VIEW_OK} != 'OK' ]]; do
    if [[ ! -z $(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "SELECT 'OK' FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'sogo_view'") ]]; then
      VIEW_OK=OK
    else
      echo "Waiting for SOGo view to be created by master..."
      sleep 3
    fi
  done
fi

# Wait for static view table if missing after update and update content
if [[ "${MASTER}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
  echo "We are master, preparing _sogo_static_view..."
  while [[ ${STATIC_VIEW_OK} != 'OK' ]]; do
    if [[ ! -z $(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "SELECT 'OK' FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '_sogo_static_view'") ]]; then
      STATIC_VIEW_OK=OK
      echo "Updating _sogo_static_view content..."
      # If changed, also update init_db.inc.php
      mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "REPLACE INTO _sogo_static_view (c_uid, domain, c_name, c_password, c_cn, mail, aliases, ad_aliases, ext_acl, kind, multiple_bookings) SELECT c_uid, domain, c_name, c_password, c_cn, mail, aliases, ad_aliases, ext_acl, kind, multiple_bookings from sogo_view;"
      mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "DELETE FROM _sogo_static_view WHERE c_uid NOT IN (SELECT username FROM mailbox WHERE active = '1')"
    else
      echo "Waiting for database initialization..."
      sleep 3
    fi
  done
else
  while [[ ${STATIC_VIEW_OK} != 'OK' ]]; do
    if [[ ! -z $(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "SELECT 'OK' FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '_sogo_static_view'") ]]; then
      STATIC_VIEW_OK=OK
    else
      echo "Waiting for database initialization by master..."
      sleep 3
    fi
  done
fi


# Recreate password update trigger
if [[ "${MASTER}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
  echo "We are master, preparing update trigger..."
  mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "DROP TRIGGER IF EXISTS sogo_update_password"
  while [[ ${TRIGGER_OK} != 'OK' ]]; do
  mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} << EOF
DELIMITER -
CREATE TRIGGER sogo_update_password AFTER UPDATE ON _sogo_static_view
FOR EACH ROW
BEGIN
UPDATE mailbox SET password = NEW.c_password WHERE NEW.c_uid = username;
END;
-
DELIMITER ;
EOF
    if [[ ! -z $(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -B -e "SELECT 'OK' FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME = 'sogo_update_password'") ]]; then
      TRIGGER_OK=OK
    else
      echo "Will retry to setup SOGo password update trigger in 3s"
      sleep 3
    fi
  done
fi

if [[ "${ALLOW_ADMIN_EMAIL_LOGIN}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
  TRUST_PROXY="YES"
else
  TRUST_PROXY="NO"
fi
# cat /dev/urandom seems to hang here occasionally and is not recommended anyway, better use openssl
RAND_PASS=$(openssl rand -base64 16 | tr -dc _A-Z-a-z-0-9)

# Generate plist header with timezone data
mkdir -p /var/lib/sogo/GNUstep/Defaults/
cat <<EOF > /var/lib/sogo/GNUstep/Defaults/sogod.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//GNUstep//DTD plist 0.9//EN" "http://www.gnustep.org/plist-0_9.xml">
<plist version="0.9">
<dict>
    <key>OCSAclURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_acl</string>
    <key>SOGoIMAPServer</key>
    <string>imap://${IPV4_NETWORK}.250:143/?TLS=YES&amp;tlsVerifyMode=none</string>
    <key>SOGoTrustProxyAuthentication</key>
    <string>${TRUST_PROXY}</string>
    <key>SOGoEncryptionKey</key>
    <string>${RAND_PASS}</string>
    <key>OCSCacheFolderURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_cache_folder</string>
    <key>OCSEMailAlarmsFolderURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_alarms_folder</string>
    <key>OCSFolderInfoURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_folder_info</string>
    <key>OCSSessionsFolderURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_sessions_folder</string>
    <key>OCSStoreURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_store</string>
    <key>SOGoProfileURL</key>
    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_user_profile</string>
    <key>SOGoTimeZone</key>
    <string>${TZ}</string>
    <key>domains</key>
    <dict>
EOF

# Generate multi-domain setup
while read -r line gal
  do
  echo "        <key>${line}</key>
        <dict>
            <key>SOGoMailDomain</key>
            <string>${line}</string>
            <key>SOGoUserSources</key>
            <array>
                <dict>
                    <key>MailFieldNames</key>
                    <array>
                        <string>aliases</string>
                        <string>ad_aliases</string>
                        <string>ext_acl</string>
                    </array>
                    <key>KindFieldName</key>
                    <string>kind</string>
                    <key>DomainFieldName</key>
                    <string>domain</string>
                    <key>MultipleBookingsFieldName</key>
                    <string>multiple_bookings</string>
                    <key>listRequiresDot</key>
                    <string>NO</string>
                    <key>canAuthenticate</key>
                    <string>YES</string>
                    <key>displayName</key>
                    <string>GAL ${line}</string>
                    <key>id</key>
                    <string>${line}</string>
                    <key>isAddressBook</key>
                    <string>${gal}</string>
                    <key>type</key>
                    <string>sql</string>
                    <key>userPasswordAlgorithm</key>
                    <string>${MAILCOW_PASS_SCHEME}</string>
                    <key>prependPasswordScheme</key>
                    <string>YES</string>
                    <key>viewURL</key>
                    <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/_sogo_static_view</string>
                </dict>" >> /var/lib/sogo/GNUstep/Defaults/sogod.plist
  # Generate alternative LDAP authentication dict, when SQL authentication fails
  # This will nevertheless read attributes from LDAP
  line=${line} envsubst < /etc/sogo/plist_ldap >> /var/lib/sogo/GNUstep/Defaults/sogod.plist
  echo "            </array>
        </dict>" >> /var/lib/sogo/GNUstep/Defaults/sogod.plist
done < <(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT domain, CASE gal WHEN '1' THEN 'YES' ELSE 'NO' END AS gal FROM domain;" -B -N)

# Generate footer
echo '    </dict>
</dict>
</plist>' >> /var/lib/sogo/GNUstep/Defaults/sogod.plist

# Fix permissions
chown sogo:sogo -R /var/lib/sogo/
chmod 600 /var/lib/sogo/GNUstep/Defaults/sogod.plist

# Patch ACLs
#if [[ ${ACL_ANYONE} == 'allow' ]]; then
#  #enable any or authenticated targets for ACL
#  if patch -R -sfN --dry-run /usr/lib/GNUstep/SOGo/Templates/UIxAclEditor.wox < /acl.diff > /dev/null; then
#    patch -R /usr/lib/GNUstep/SOGo/Templates/UIxAclEditor.wox < /acl.diff;
#  fi
#else
#  #disable any or authenticated targets for ACL
#  if patch -sfN --dry-run /usr/lib/GNUstep/SOGo/Templates/UIxAclEditor.wox < /acl.diff > /dev/null; then
#    patch /usr/lib/GNUstep/SOGo/Templates/UIxAclEditor.wox < /acl.diff;
#  fi
#fi

# Copy logo, if any
[[ -f /etc/sogo/sogo-full.svg ]] && cp /etc/sogo/sogo-full.svg /usr/lib/GNUstep/SOGo/WebServerResources/img/sogo-full.svg

# Rsync web content
echo "Syncing web content with named volume"
rsync -a /usr/lib/GNUstep/SOGo/. /sogo_web/

# Chown backup path
chown -R sogo:sogo /sogo_backup

# Creating cronjobs
if [[ "${MASTER}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
  echo "* * * * *   sogo   /usr/sbin/sogo-ealarms-notify -p /etc/sogo/sieve.creds 2>/dev/null" > /etc/cron.d/sogo
  echo "* * * * *   sogo   /usr/sbin/sogo-tool expire-sessions ${SOGO_EXPIRE_SESSION}" >> /etc/cron.d/sogo
  echo "0 0 * * *   sogo   /usr/sbin/sogo-tool update-autoreply -p /etc/sogo/sieve.creds" >> /etc/cron.d/sogo
  echo "0 2 * * *   sogo   /usr/sbin/sogo-tool backup /sogo_backup ALL" >> /etc/cron.d/sogo
else
  rm /etc/cron.d/sogo
fi

exec gosu sogo /usr/sbin/sogod