#!/bin/bash
# info: delete remote dns domains
# options: [HOST]
# The function deletes remote dns domains.


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

# Argument defenition
host=$1

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


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

is_system_enabled "$DNS_CLUSTER" 'DNS_CLUSTER'

if [ ! -e "$VESTA/conf/dns-cluster.conf" ]; then
    echo "Error: dns-cluster.conf doesn't exist"
    log_event "$E_NOTEXIST $EVENT"
    exit $E_NOTEXIST
fi

number_of_proc=$(ps auxf | grep -v grep | grep $VESTA/bin/$SCRIPT | wc -l)
if [ "$number_of_proc" -gt 2 ]; then
    echo "Error: another sync process already exists"
    log_event "$E_EXISTS $EVENT"
    exit $E_EXISTS
fi


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

old_ifs="$IFS"
IFS=$'\n'

if [ -z $host ]; then
    hosts=$(cat $VESTA/conf/dns-cluster.conf)
else
    hosts=$(grep "HOST='$host'" $VESTA/conf/dns-cluster.conf)
fi

# Starting cluster loop
for cluster_str in $hosts; do

    # Get host values
    eval $cluster_str

    # Check connection type
    if [ -z "TYPE" ]; then
        TYPE='api'
    fi

    # Print hostname
    if [ ! -z "$verbose" ]; then
        echo "HOSTNAME: $HOSTNAME"
        echo "TYPE: $TYPE"
    fi

    # Switch on connection type
    case $TYPE in
        ssh) send_cmd="send_ssh_cmd" ;;
        *)  send_cmd="send_api_cmd" ;;
    esac

    # Check host connection
    $send_cmd v-list-sys-config
    if [ $? -ne 0 ]; then
        echo "Error: $TYPE connection to $HOST failed"
        log_event "$E_CONNECT $EVENT"
        exit $E_CONNECT
    fi

    # Check recipient dns user
    if [ -z "$DNS_USER" ]; then
        DNS_USER='dns-cluster'
    fi
    if [ ! -z "$verbose" ]; then
        echo "DNS_USER: $DNS_USER"
    fi
    $send_cmd v-list-user $DNS_USER
    if [ $? -ne 0 ]; then
        echo "Error: dns user $DNS_USER doesn't exist"
        log_event "$E_NOTEXIST $EVENT"
        exit $E_NOTEXIST
    fi

    # Clean source records
    $send_cmd v-delete-dns-domains-src $DNS_USER $HOSTNAME 'no'
    if [ $? -ne 0 ]; then
        echo "Error: $TYPE connection to $HOST failed (cleanup)"
        log_event "$E_CONNECT $EVENT"
        exit $E_CONNECT
    fi

    # Rebuild dns zones
    $send_cmd v-rebuild-dns-domains $DNS_USER 'scheduled'
    if [ $? -ne 0 ]; then
        echo "Error: $TYPE connection to $HOST failed (rebuild)"
        log_event "$E_CONNECT $EVENT"
        exit $E_CONNECT
    fi

done


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

exit