#!/bin/bash
# info: add mail account forward address
# options: USER DOMAIN ACCOUNT FORWARD
#
# The function add new email account.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument definition
user=$1
domain=$2
domain_idn=$2
account=$3
forward=$4

# Includes
source $VESTA/func/main.sh
source $VESTA/func/domain.sh
source $VESTA/conf/vesta.conf

# Additional argument formatting
format_domain
format_domain_idn


#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

check_args '4' "$#" 'USER DOMAIN ACCOUNT FORWARD'
is_format_valid 'user' 'domain' 'account' 'forward'
is_system_enabled "$MAIL_SYSTEM" 'MAIL_SYSTEM'
is_object_valid 'user' 'USER' "$user"
is_object_unsuspended 'user' 'USER' "$user"
is_object_valid 'mail' 'DOMAIN' "$domain"
is_object_unsuspended 'mail' 'DOMAIN' "$domain"
is_object_valid "mail/$domain" 'ACCOUNT' "$account"
is_object_unsuspended "mail/$domain" 'ACCOUNT' "$account"
fwd=$(get_object_value "mail/$domain" 'ACCOUNT' "$account" '$FWD')
if [ ! -z "$(echo $fwd | grep -w $forward)" ]; then
    echo "Error: forward $forward exists"
    log_event "$E_EXISTS $ARGUMENTS"
    exit $E_EXISTS
fi


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Define fwd string
if [ -z "$fwd" ]; then
    fwd="$forward"
else
    fwd="$fwd,$forward"
fi

# Adding forward to exim
if [[ "$MAIL_SYSTEM" =~ exim ]]; then
    sed -i "/^$account@$domain_idn:/ d" $HOMEDIR/$user/conf/mail/$domain/aliases
    echo "$account@$domain_idn:$fwd" >> $HOMEDIR/$user/conf/mail/$domain/aliases
fi


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

# Updating config
update_object_value "mail/$domain" 'ACCOUNT' "$account"  '$FWD' "$fwd"

# Logging
log_history "added forwarding from $account@$domain to $forward"
log_event "$OK" "$ARGUMENTS"

exit
