#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Tox Application
#
# License
# =======
#
# Copyright (C) 2014-2016 Bob Mottram <bob@robotics.uk.to>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

TOX_PORT=33445
TOXCORE_REPO="git://github.com/irungentoo/toxcore.git"
TOXCORE_COMMIT='532629d486e3361c7d8d95b38293cc7d61dc4ee5'
TOXID_REPO="https://github.com/bashrc/toxid"
TOX_BOOTSTRAP_ID_FILE=/var/lib/tox-bootstrapd/pubkey.txt
# These are some default nodes, but you can replace them with trusted nodes
# as you prefer. See https://wiki.tox.im/Nodes
TOX_NODES=
#TOX_NODES=(
#  '192.254.75.102,2607:5600:284::2,33445,951C88B7E75C867418ACDB5D273821372BB5BD652740BCDF623A4FA293E75D2F,Tox RELENG,US'
#  '144.76.60.215,2a01:4f8:191:64d6::1,33445,04119E835DF3E78BACF0F84235B300546AF8B936F035185E2A8E9E0A67C8924F,sonOfRa,DE'
#)
TOXIC_REPO="https://github.com/Tox/toxic"
TOXIC_COMMIT='cf16849b374e484a33a4dffa3dfb937b59d537f2'
TOXIC_FILE=/usr/local/bin/toxic

function upgrade_tox {
	if ! grep -Fxq "install_tox" $COMPLETION_FILE; then
		return
	fi
	function_check set_repo_commit
	set_repo_commit $INSTALL_DIR/toxcore "toxcore commit" "$TOXCORE_COMMIT" $TOXCORE_REPO

	function_check set_repo_commit
	set_repo_commit $INSTALL_DIR/toxic "Toxic commit" "$TOXIC_COMMIT" $TOXIC_REPO
}

function backup_local_tox {
	echo ''
}

function backup_remote_tox {
	echo ''
}

function remove_tox_node {
	if ! grep -Fxq "install_tox_node" $COMPLETION_FILE; then
		return
	fi

	iptables -D INPUT -p tcp --dport $TOX_PORT -j ACCEPT
	function_check save_firewall_settings
	save_firewall_settings

	function_check remove_onion_service
	remove_onion_service tox ${TOX_PORT}

	${PROJECT_NAME}-mesh-install -f tox_node --remove yes
	if [ ! "$?" = "0" ]; then
		echo $'Failed to remove tox node'
		exit 763836
	fi
	sed -i '/install_tox_node/d' $COMPLETION_FILE
	sed -i '/configure_firewall_for_tox/d' $COMPLETION_FILE
}

function remove_tox_avahi {
	if ! grep -Fxq "tox_avahi" $COMPLETION_FILE; then
		return
	fi
	cd $INSTALL_DIR/toxid
	make uninstall
	rm -rf $INSTALL_DIR/toxid
	sed -i '/toxavahi/d' /etc/crontab
	systemctl restart cron
	sed -i '/tox_avahi/d' $COMPLETION_FILE
}

function remove_tox_client {
	if ! grep -Fxq "install_tox_client" $COMPLETION_FILE; then
		return
	fi

	${PROJECT_NAME}-mesh-install -f tox_client --remove yes
	if [ ! "$?" = "0" ]; then
		echo $'Could not remove Tox client'
		exit 737253
	fi
	sed -i '/install_tox_client/d' $COMPLETION_FILE
	sed -i '/Tox /d' $COMPLETION_FILE
	sed -i '/Toxic /d' $COMPLETION_FILE
}

function remove_tox {
	remove_tox_client
	remove_tox_avahi
	remove_tox_node
}

function configure_firewall_for_tox {
	if grep -Fxq "configure_firewall_for_tox" $COMPLETION_FILE; then
		return
	fi
	if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
		# docker does its own firewalling
		return
	fi
	if [[ $ONION_ONLY != "no" ]]; then
		return
	fi
	iptables -A INPUT -p tcp --dport $TOX_PORT -j ACCEPT
	function_check save_firewall_settings
	save_firewall_settings

	OPEN_PORTS+=("Tox      $TOX_PORT")
	echo 'configure_firewall_for_tox' >> $COMPLETION_FILE
}

function tox_avahi {
	if [[ $SYSTEM_TYPE != "$VARIANT_MESH" ]]; then
		return
	fi
	if grep -Fxq "tox_avahi" $COMPLETION_FILE; then
		return
	fi

	if [ ! -d /etc/avahi ]; then
		echo $'tox_avahi: avahi is not installed'
		exit 87359
	fi

	# install a command to obtain the Tox ID
	cd $INSTALL_DIR
	function_check git_clone
	git_clone $TOXID_REPO $INSTALL_DIR/toxid
	if [ ! -d $INSTALL_DIR/toxid ]; then
		exit 63921
	fi
	cd $INSTALL_DIR/toxid
	make
	if [ ! "$?" = "0" ]; then
		exit 58432
	fi
	make install

	toxavahi

	# publish regularly
	function_check cron_add_mins
	cron_add_mins 1 'toxavahi > /dev/null'

	systemctl restart avahi-daemon

	echo 'tox_avahi' >> $COMPLETION_FILE
}

function install_tox_node {
	if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
		return
	fi

	if grep -Fxq "install_tox_node" $COMPLETION_FILE; then
		return
	fi

	${PROJECT_NAME}-mesh-install -f tox_node
	if [ ! "$?" = "0" ]; then
		echo $'Failed to install tox node'
		exit 26778
	fi

	TOX_ONION_HOSTNAME=$(add_onion_service tox ${TOX_PORT} ${TOX_PORT})

	if ! grep -q "tox onion domain" $COMPLETION_FILE; then
		echo "tox onion domain:${TOX_ONION_HOSTNAME}" >> $COMPLETION_FILE
	else
		sed -i "s|tox onion domain.*|tox onion domain:${TOX_ONION_HOSTNAME}|g" $COMPLETION_FILE
	fi

	systemctl restart tox-bootstrapd.service

	TOX_PUBLIC_KEY=$(cat /var/log/syslog | grep tox | grep "Public Key" | awk -F ' ' '{print $8}' | tail -1)
	if [ ${#TOX_PUBLIC_KEY} -lt 30 ]; then
		echo $'Could not obtain the tox node public key'
		exit 6529
	fi

	# save the public key for later reference
	echo "$TOX_PUBLIC_KEY" > $TOX_BOOTSTRAP_ID_FILE

	function_check configure_firewall_for_tox
	configure_firewall_for_tox

	if ! grep -q $"Your Tox node public key is" /home/$MY_USERNAME/README; then
		echo '' >> /home/$MY_USERNAME/README
		echo '' >> /home/$MY_USERNAME/README
		echo 'Tox' >> /home/$MY_USERNAME/README
		echo '===' >> /home/$MY_USERNAME/README
		echo $"tox onion domain: ${TOX_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
		echo $"Your Tox node public key is: $TOX_PUBLIC_KEY" >> /home/$MY_USERNAME/README
		echo $'In the Toxic client you can connect to it with:' >> /home/$MY_USERNAME/README
		echo "  /connect $DEFAULT_DOMAIN_NAME.local $TOX_PORT $TOX_PUBLIC_KEY" >> /home/$MY_USERNAME/README
		chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
		chmod 600 /home/$MY_USERNAME/README
	fi

	function_check configure_firewall_for_tox
	configure_firewall_for_tox
	echo 'install_tox_node' >> $COMPLETION_FILE
}

function install_tox_client {
	if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_MAILBOX" || $SYSTEM_TYPE == "$VARIANT_CLOUD" || $SYSTEM_TYPE == "$VARIANT_SOCIAL" || $SYSTEM_TYPE == "$VARIANT_MEDIA" || $SYSTEM_TYPE == "$VARIANT_DEVELOPER" ]]; then
		return
	fi

	if grep -Fxq "install_tox_client" $COMPLETION_FILE; then
		return
	fi

	${PROJECT_NAME}-mesh-install -f tox_client
	if [ ! "$?" = "0" ]; then
		echo $'Could not install Tox client'
		exit 67248
	fi

	# initial setup of username
	#su -c "echo 'n
	#/nick $MY_USERNAME
	#/exit
	#' | $TOXIC_FILE -d" - $MY_USERNAME

	echo 'install_tox_client' >> $COMPLETION_FILE
}

function install_tox {
	if grep -Fxq "install_tox" $COMPLETION_FILE; then
		return
	fi
	configure_firewall_for_tox
	install_tox_node
	tox_avahi
	install_tox_client
	echo 'install_tox' >> $COMPLETION_FILE
}

# NOTE: deliberately no exit 0