#!/bin/bash
# info: delete dns record
# options: USER DOMAIN ID [RESTART]
#
# The function for deleting a certain record of DNS zone.


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

# Argument definition
user=$1
domain=$2
domain_idn=$2
id=$3
restart=$4

# Includes
source $HESTIA/func/main.sh
source $HESTIA/func/domain.sh
source $HESTIA/conf/hestia.conf

# Additional argument formatting
format_domain
format_domain_idn
# TODO: $domain_idn not used in this script - maybe $domain should be converted to $doman_idn ?


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

check_args '3' "$#" 'USER DOMAIN ID [RESTART]'
is_format_valid 'user' 'domain' 'id'
is_object_valid 'user' 'USER' "$user"
is_object_unsuspended 'user' 'USER' "$user"
is_object_valid 'dns' 'DOMAIN' "$domain"
is_object_unsuspended 'dns' 'DOMAIN' "$domain"
is_object_valid "dns/$domain" 'ID' "$id"
is_dns_record_critical

# Perform verification if read-only mode is enabled
check_hestia_demo_mode


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

# Deleting record
sed -i "/^ID='$id'/d" $USER_DATA/dns/$domain.conf

# Updating zone
if [[ "$DNS_SYSTEM" =~ named|bind ]]; then
    update_domain_serial
    update_domain_zone
fi

# Updating dns-cluster queue
if [ ! -z "$DNS_CLUSTER" ]; then
    # Check for first sync
    dlock=$(grep "domain $user $domain" $HESTIA/data/queue/dns-cluster.pipe)
    if [ -z "$dlock" ]; then
        cmd="$BIN/v-delete-remote-dns-record $user $domain $id"
        echo "$cmd" >> $HESTIA/data/queue/dns-cluster.pipe
    fi
fi


#----------------------------------------------------------#
#                       Hestia                             #
#----------------------------------------------------------#

# Upddate counters
records="$(wc -l $USER_DATA/dns/$domain.conf | cut -f1 -d ' ')"
update_object_value 'dns' 'DOMAIN' "$domain" '$RECORDS' "$records"
decrease_user_value "$user" '$U_DNS_RECORDS'

# Restarting named
$BIN/v-restart-dns $restart
check_result $? "Bind restart failed" >/dev/null

# Logging
log_history "deleted dns record $id on $domain"
log_event "$OK" "$ARGUMENTS"

exit
