#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# Select the mesh routing protocol
#
# License
# =======
#
# 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/>.

PROJECT_NAME='freedombone'

export TEXTDOMAIN=${PROJECT_NAME}-mesh-routing
export TEXTDOMAINDIR="/usr/share/locale"

source /usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-wifi
source /usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-mesh

function mesh_stop_daemon {
    daemon_name=$1

    clear
    echo ''
    echo $"Stopping $1..."
    sudo systemctl stop $1
    echo $"Disabling $1..."
    sudo systemctl disable $1
}

clear
echo ''
echo $'Scanning for BMX6 protocol...'
bmx6_peers=$(avahi-browse -at | grep routing | grep bmx6 | wc -l)

clear
echo ''
echo $'Scanning for OLSR2 protocol...'
olsr2_peers=$(avahi-browse -at | grep routing | grep olsr2 | wc -l)

clear
echo ''
echo $'Scanning for Babel protocol...'
babel_peers=$(avahi-browse -at | grep routing | grep babel | wc -l)

clear

data=$(zenity --list 1 $"BMX6 ($bmx6_peers)" 2 $"OLSR2 ($olsr2_peers)" 3 $"Babel ($babel_peers)" $"Select Mesh Protocol" --column="id" --title $"Mesh Protocol" --column=$"Choose the mesh protocol:" --hide-column=1 --print-column=1 --height=150)

sel=$?
case $sel in
    1) exit 1;;
    255) exit 1;;
esac

temp_script=$HOME/.change_routing
echo '#!/bin/bash' > $temp_script
echo "echo \"\$1\" > $MESH_DEFAULT_PROTOCOL" >> $temp_script
echo "echo \"\$1\" > $MESH_CURRENT_PROTOCOL" >> $temp_script
echo "sed -i \"s|<type>.*|<type>_\${1}._tcp</type>|g\" /etc/avahi/services/routing.service" >> $temp_script
echo 'systemctl restart avahi-daemon' >> $temp_script
echo "IFACE=\$(cat /etc/systemd/system/\${1}.service | grep ExecStart | awk -F ' ' '{print \$2}')" >> $temp_script
echo 'network=fd66:66:66' >> $temp_script
echo 'search_ipv6=$(ifconfig $1 | grep $network)' >> $temp_script
echo 'if [ $search_ipv6 ]; then' >> $temp_script
echo "    result=\$(ifconfig \$1 | grep \$network | awk -F ' ' '{print \$2}')" >> $temp_script
echo '    ip -6 addr add ${result}/128 dev $1' >> $temp_script
echo 'else' >> $temp_script
echo '    ipv6_array=( 1 2 3 4 5 6 7 8 9 0 a b c d e f )' >> $temp_script
echo '    a=${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}' >> $temp_script
echo '    b=${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}' >> $temp_script
echo '    c=${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}' >> $temp_script
echo '    d=${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}' >> $temp_script
echo '    e=${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}${ipv6_array[$RANDOM%16]}' >> $temp_script
echo '    result=$network:$a:$b:$c:$d:$e' >> $temp_script
echo '    ip -6 addr add ${result}/128 dev $1' >> $temp_script
echo 'fi' >> $temp_script
chmod +x $temp_script

clear
echo ''
echo $'Authentication to change mesh protocol'
echo ''

case $data in
    1)  sudo $temp_script 'bmx6'
        mesh_stop_daemon 'bmx7'
        mesh_stop_daemon 'olsr2'
        mesh_stop_daemon 'babel'
        clear
        echo ''
        echo $'Enabling BMX6...'
        sudo systemctl enable bmx6
        echo $'Starting BMX6...'
        sudo systemctl start bmx6
        ;;
    2)  sudo $temp_script 'olsr2'
        mesh_stop_daemon 'bmx6'
        mesh_stop_daemon 'bmx7'
        mesh_stop_daemon 'babel'
        clear
        echo ''
        echo $'Enabling OLSR2...'
        sudo systemctl enable olsr2
        echo $'Starting OLSR2...'
        sudo systemctl start olsr2
        ;;
    3)  sudo $temp_script 'babel'
        mesh_stop_daemon 'bmx6'
        mesh_stop_daemon 'bmx7'
        mesh_stop_daemon 'olsr2'
        clear
        echo ''
        echo $'Enabling Babel...'
        sudo systemctl enable babel
        echo $'Starting Babel...'
        sudo systemctl start babel
        ;;
esac

rm $temp_script

exit 0