#!/usr/bin/env bash

function usage() {
   if [ -n "$1" ];then
      echo -e "\nError: $1"
   fi

cat<<EOF

   Usage: `basename $0` -h <remote host> -u <remote user> <network-name>

Example: `basename $0` -h wf.oopen.de -u chris WF

   network-name   possible values are:

                  NONE-WF
                  NONE-CKUBU

                  123
                  AK
                  AKB
                  ANW-URB
                  ANW-KM
                  B3-Bornim
                  CKUBU
                  FLR-BRB
                  GA-AL
                  GA-Ersatz
                  GA-NH
                  GA-Schloss
                  JONAS
                  Kanzlei-Kiel
                  MBR
                  OOLM
                  OPP
                  ReachOut
                  SPR-BE
                  WF

EOF
exit

}

manage_files() {

   for file in $* ; do
      if ssh -l $remote_user ${remote_host} [ -f ${_network}-config/$file ] ; then
         scp -o User=$remote_user ${remote_host}:${_network}-config/$file .
         ssh -l $remote_user ${remote_host} "rm ${_network}-config/$file"
      fi
   done
   
}

manage_archives() {
   for archive in $* ; do
      if ssh -l $remote_user ${remote_host} [ -f "${_network}-config/$archive" ]; then
         scp -o User=$remote_user ${remote_host}:${_network}-config/$archive .
         gunzip < $archive | tar -xpf -
         rm -f  $archive
         ssh -l $remote_user ${remote_host} "rm ${_network}-config/$archive"
      fi
   done
}

while getopts h:u: opt ; do
   case $opt in
      h) remote_host="$OPTARG"
         ;;
      u) remote_user="$OPTARG"
         ;;
      *) usage
         ;;
   esac
done

if [ -z "$remote_host" ]; then
   usage "Remote host not given"
fi   
if [ -z "$remote_user" ]; then
   usage "Remote host not given"
fi   

shift `expr $OPTIND - 1`

[ $# -ne "1" ] && usage "wrong number of arguments"

_network=$1

office_base_dir=$HOME/Office_Networks
office_dir=${office_base_dir}/${_network}

mkdir -p $office_dir
cd $office_dir

# - Nameserver Bind
# -    /etc/bind/*
# -
manage_archives bind_${_network}.tar.gz

# - OpenVPN:
# -    /etc/openvpn/*
# -
# -    /root/.openvpn
# -
archives="openvpn_${_network}.tar.gz
          root-dot-opennvpndir_${_network}.tar.gz"
manage_archives $archives

# - DynDNS
# -
# -    /etc/ddclient.conf
# -
manage_files ddclient.conf.${_network}

# - DHCP Server
# - 
# -    /etc/dhcp/dhcpd.conf   -   /etc/dhcp3/dhcpd.conf 
# -    /etc/dhcp/dhcpd6.conf  -  /etc/dhcp3/dhcpd6.conf
# -
# -    hosts.lan.conf    # dhcp failover kanzlei kiel
# -    hosts.w-lan.conf  # dhcp failover kanzlei kiel
# -
# -    /etc/init.d/isc-dhcp6-server
# -
files="dhcpd.conf.${_network}
       dhcpd6.conf.${_network}
       isc-dhcp6-server.${_network}
       hosts.lan.conf.${_network}
       hosts.w-lan.conf.${_network}
       default_isc-dhcp-server.${_network}"
manage_files "$files"

# - DSL PPP
# -
# -    /etc/ppp/peers/*
# -
# - /etc/ppp/pap-secrets
# - /etc/ppp/chap-secrets
# -
# - /etc/ppp/ip-up.d/email_notice
# -
manage_files pap-secrets.${_network} chap-secrets.${_network} email_notice.${_network}
manage_archives etc_ppp_peers_${_network}.tar.gz

# - Postfix SMTP
# -
# -    /etc/postfix/main.cf
# -    /etc/mailname
# -    /etc/postfix/generic
# -    /etc/postfix/generic.db
# -    /etc/postfix/sasl_passwd
# -    /etc/postfix/sasl_passwd.db
# -
files="main.cf.${_network}
       mailname.${_network}
       sasl_passwd.${_network}
       sasl_passwd.db.${_network}
       generic.${_network}
       generic.db.${_network}"
manage_files $files

# - Netzwerk:
# -    /etc/hostname
# -    /etc/hosts
# -    /etc/network/interfaces
# -    /etc/resolv.conf
files="hostname.${_network}
       hosts.${_network}
       interfaces.${_network}
       resolv.conf.${_network}
       hostapd.conf.${_network}"
manage_files $files


# - /root/bin directory
# -
manage_archives root_bin_${_network}.tar.gz


# - /usr/local/src directory
# -
manage_archives usr_local_src_${_network}.tar.gz


# - /usr/local/sbin directory
# -
manage_archives usr_local_sbin_${_network}.tar.gz


# - Firewall
# -
# -    /etc/systemd/system/ipt-firewall.service
# -    /etc/systemd/system/ip6t-firewall.service
# -
# -    /etc/init.d/ipt-firewall
# -    /etc/init.d/ipt-firewall
# -
# -    /etc/ipt-firewall/*
# -
manage_archives etc_ipt-firewall_${_network}.tar.gz
files="ipt-firewall.service.${_network}
       ip6t-firewall.service.${_network}
       ipt-firewall.${_network}
       ip6t-firewall.${_network}
       ipt-firewall-gateway.${_network}
       ip6t-firewall-gateway.${_network}"
manage_files $files


# - Check Script Onlinestatus
# -
# -    /etc/systemd/system/check_net.service
# -
# -    /usr/local/sbin/check_net.sh
# -    /usr/local/sbin/netconfig.sh
# -
# -    /etc/check_net/*
# -
# -    /etc/logrotate.d/check_net
# -
manage_archives etc_check_net_${_network}.tar.gz
files="check_net.service.${_network}
      check_net-logrotate.${_network}"
manage_files $files


# - Other
# -
# -    /etc/rc.local
# -    /var/spool/cron/crontabs/root
# -    /usr/local/igmpproxy/etc/igmpproxy.conf
# -    /etc/aiccu.conf
# -    /etc/default/aiccu
# -    /etc/radvd.conf
# -
files="rc.local.${_network}
      cron_root.${_network}
      igmpproxy.conf.${_network}
      aiccu.conf.${_network}
      aiccu.${_network}
      radvd.conf.${_network}"
manage_files $files



cat <<EOF > $office_dir/README.txt

Notice:
   You have to change some configuration files becaus the because
   the configuration of network interfaces must not be equal.

   !! Take care, to use the right device names !!
   Maybe they are called i.e. 'enp0sXX', but you can rename it.
   See also : README.rename.netdevices

   For the backup gateway host:
      eth1 --> LAN
      eth2 --> WAN or ppp0 (DSL device)

      eth0 --> WLAN or second LAN or what ever
      or
      br0  --> WLAN or second LAN or what ever


   So you have to change the following files
      dsl-provider.${_network}: ppp0 comes over eth2
      interfaces.${_network}: see above
      default_isc-dhcp-server.${_network}
      ipt-firewall.${_network}: LAN device (mostly $local_if_1) = eth1
                                second LAN WLAN or what ever (if present) = eth0
         
EOF

cat $office_dir/README.txt

#rm /tmp/README$$

exit 0