_tinc() {
	local cur prev opts confvars commands nets
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	opts="-c -d -D -K -n -o -L -R -U --config --no-detach --debug --net --option --mlock --logfile --pidfile --chroot --user --help --version"
	confvars="Address AddressFamily BindToAddress BindToInterface Broadcast Cipher ClampMSS Compression ConnectTo DecrementTTL Device DeviceType Digest DirectOnly ECDSAPrivateKeyFile ECDSAPublicKey ECDSAPublicKeyFile ExperimentalProtocol Forwarding GraphDumpFile Hostnames IffOneQueue IndirectData Interface KeyExpire LocalDiscovery MACExpire MACLength MaxOutputBufferSize MaxTimeout Mode Name PMTU PMTUDiscovery PingInterval PingTimeout Port PriorityInheritance PrivateKeyFile ProcessPriority Proxy PublicKeyFile ReplayWindow StrictSubnets Subnet TCPOnly TunnelServer UDPRcvBuf UDPSndBuf VDEGroup VDEPort Weight"
	commands="config connect debug disconnect dump edit export export-all generate-ecdsa-keys generate-keys generate-rsa-keys help import info init log pcap pid purge reload restart retry start stop top version"

	case ${prev} in
		-c|--config)
        	compopt -o dirnames 2>/dev/null
		return 0
		;;
		-n|--net)
		nets=""
		pushd /etc/tinc >/dev/null 2>/dev/null
		for dir in *; do
			if [[ -f "$dir/tinc.conf" ]]; then
				nets="$nets $dir"
			fi
		done
		popd >/dev/null 2>/dev/null
		COMPREPLY=( $(compgen -W "${nets}" -- ${cur}) )
		return 0
		;;
		-o|--option)
		compopt -o nospace
		COMPREPLY=( $(compgen -W "${confvars}" -- ${cur}) )
		if [[ ${#COMPREPLY[*]} == 1 ]] ; then
			COMPREPLY=$COMPREPLY=
		fi
		return 0
		;;
		-U|--user)
		COMPREPLY=( $(compgen -u ${cur}) )
		return 0
		;;
		--logfile|--pidfile)
        	compopt -o filenames 2>/dev/null
		COMPREPLY=( $(compgen -f ${cur}) )
		return 0
	esac
	if [[ ${cur} == -* ]] ; then
		COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
		return 0
	fi
	if [[ $1 == "d" ]]; then
		if [[ -z ${cur} ]] ; then 
			COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
		fi
		return 0
	fi
	COMPREPLY=( $(compgen -W "${commands}" -- ${cur}) )
	case $prev in
		config)
		COMPREPLY=( $(compgen -W "get set add del ${confvars}" -- ${cur}) )
		return 0
		;;
		get|set|add|del)
		COMPREPLY=( $(compgen -W "${confvars}" -- ${cur}) )
		;;
		dump)
		COMPREPLY=( $(compgen -W "nodes edges subnets connections graph" -- ${cur}) )
		return 0
		;;
	esac
	if [[ -z ${cur} ]] ; then 
		COMPREPLY=( $(compgen -W "${opts} ${commands}" -- ${cur}) )
	fi
	return 0
}

_tincd() {
	_tinc d;
}

_tincctl() {
	_tinc ctl;
}

complete -F _tincd tincd
complete -F _tincctl tincctl
