#!/bin/bash
# info: add remote dns domain
# options: USER DOMAIN [FLUSH]
#
# The function synchronize dns domain with the remote server.


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

# Argument defenition
user=$1
domain=$2
flush=$3

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


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

check_args '2' "$#" 'USER DOMAIN [FLUSH]'
validate_format 'user' 'domain'
is_system_enabled "$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                             #
#----------------------------------------------------------#

# Check domain existance
check_local_domain=$(grep "DOMAIN='$domain'" $USER_DATA/dns.conf 2>/dev/null)
if [ -z "$check_local_domain" ]; then
    pipe="$VESTA/data/queue/dns-cluster.pipe"
    str=$(grep -n "$SCRIPT $1 $2$" $pipe | cut -f1 -d: | head -n1)
    if [ ! -z "$str" ]; then
        sed -i "$str d"  $pipe
    fi
    exit
fi

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

# Check remote dns nodes
remote_dns_health_check

search_str=$(grep "SUSPENDED='no'" $VESTA/conf/dns-cluster.conf)
for cluster_str in $search_str; do

    # Get host values
    eval $cluster_str

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

    # Check recipient dns user
    if [ -z "$DNS_USER" ]; then
        DNS_USER='dns-cluster'
    fi

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

    # Check dns exceptions
    if [ -z "$DNS_CLUSTER_IGNORE" ]; then
        DNS_CLUSTER_IGNORE='dns-cluster'
    fi

    # Check flush parameters

    # Sync domain
    str=$(grep "DOMAIN='$domain'" $USER_DATA/dns.conf)
    eval $str

    $send_cmd v-insert-dns-domain $DNS_USER "$str" $HOSTNAME "$flush" 'no'
    if [ $? -eq 0 ]; then
        # Sync records
        if [ "$TYPE" = 'ssh' ]; then
            tmp=$(mktemp -u)
            scp_cmd $USER_DATA/dns/$DOMAIN.conf $tmp
            $send_cmd v-insert-dns-records $DNS_USER $DOMAIN $tmp 'no'
        else
            for str in $(cat $USER_DATA/dns/$DOMAIN.conf); do
                str=$(echo "$str" | sed 's/"/\\"/g')
                $send_cmd v-insert-dns-record $DNS_USER $DOMAIN "$str"
            done
        fi

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

done

# Update pipe
rm -f $tmpfile
pipe="$VESTA/data/queue/dns-cluster.pipe"
str=$(grep -n "$SCRIPT $1 $2 " $pipe | cut -f1 -d: | head -n1)
if [ ! -z "$str" ]; then
    sed -i "$str d"  $pipe
fi

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

exit