#!/bin/bash
# info: add web domain backend
# options: USER DOMAIN [TEMPLATE] [RESTART]
#
# The call is used for adding web backend configuration for user


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

# Argument defenition
user=$1
domain=$2
domain_idn=$(idn -t --quiet -a "$domain")
template=${3-default}

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


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

check_args '2' "$#" 'USER DOMAIN [TEMPLATE] [RESTART]'
validate_format 'user' 'domain'
is_system_enabled "$WEB_SYSTEM" 'WEB_SYSTEM'
is_system_enabled "$WEB_BACKEND" 'WEB_BACKEND'
is_object_unsuspended 'user' 'USER' "$user"
is_web_backend_template_valid $template
is_web_backend_pool_valid
if [ -e "$pool/$backend.conf" ]; then
    exit
fi


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

# Allocating backend port
backend_port=9000
ports=$(grep -v '^;' $pool/* 2>/dev/null |grep listen |grep -o :[0-9].*)
ports=$(echo "$ports" |sed "s/://" |sort -n)
for port in $ports; do
    if [ "$backend_port" -eq "$port" ]; then
        backend_port=$((backend_port + 1))
    fi
done

# Adding backend config
cat $WEBTPL/$WEB_BACKEND/$template.tpl |\
    sed -e "s|%backend_port%|$backend_port|" \
        -e "s|%user%|$user|"\
        -e "s|%domain%|$domain|"\
        -e "s|%domain_idn%|$domain_idn|"\
        -e "s|%backend%|$backend|g" > $pool/$backend.conf


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

# Restart backend server
if [ "$restart" != 'no' ]; then
    $BIN/v-restart-web-backend
    check_result $? "Web backend restart failed" >/dev/null
fi

# Logging
log_history "added $WEB_BACKEND backend configuration for $domain"
log_event "$OK" "$EVENT"

exit