#!/bin/bash
# info: add new database server
# options: type host port dbuser dbpass [max_db] [charsets] [template]
#
# The function add new database server to the server pool. It supports local
# and remote database servers, which is useful for clusters. By adding a host
# you can set limit for number of databases on a host. Template parameter is
# used only for PostgreSQL and has an default value "template1". You can read
# more about templates in official PostgreSQL documentation.


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

# Argument defenition
type=$1
host=$2
port=$3
dbuser=$4
dbpass=$5
A5='******'
charsets=${7-UTF8,LATIN1,WIN1250,WIN1251,WIN1252,WIN1256,WIN1258,KOI8}
template=${8-template1}

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

# Hiding password
max_db=${6-500}


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

args_usage='type host port dbuser dbpass [max_db] [charsets] [tpl]'
check_args '5' "$#" "$args_usage"
validate_format 'host' 'port' 'dbuser' 'dbpass' 'max_db' 'charsets' 'template'
is_system_enabled "$DB_SYSTEM"
is_type_valid "$DB_SYSTEM" "$type"
is_dbhost_new
case $type in
    mysql) is_mysql_host_alive ;;
    pgsql) is_pgsql_host_alive ;;
esac


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

# Concatentating db host string
case $type in
    mysql) str="HOST='$host' USER='$dbuser' PASSWORD='$dbpass' PORT='$port'";
           str="$str CHARSETS='$charsets' MAX_DB='$max_db' U_SYS_USERS='' ";
           str="$str U_DB_BASES='0' SUSPENDED='no' TIME='$TIME' DATE='$DATE'";;
    pgsql) str="HOST='$host' USER='$dbuser' PASSWORD='$dbpass' PORT='$port'";
           str="$str CHARSETS='$charsets' TPL='$template' MAX_DB='$max_db'";
           str="$str U_SYS_USERS='' U_DB_BASES='0' SUSPENDED='no'";
           str="$str TIME='$TIME' DATE='$DATE'";;
esac

# Adding host to conf
echo "$str" >> $VESTA/conf/$type.conf
chmod 660 $VESTA/conf/$type.conf


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

# Logging
log_history "added $type database server $host" '' 'admin'
log_event "$OK" "$EVENT"

exit