#!/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 ${daemon_name}..."
    sudo systemctl stop "${daemon_name}"
    echo $"Disabling ${daemon_name}..."
    sudo systemctl disable "${daemon_name}"
}

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

clear
echo ''
echo $'Scanning for BMX7 protocol...'
bmx7_peers=$(avahi-browse -at | grep routing | grep -c bmx7)

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

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

clear

data=$(zenity --list 1 $"BMX6 ($bmx6_peers)" 2 $"BMX7 Experimental ($bmx7_peers)" 3 $"OLSR2 ($olsr2_peers)" 4 $"Babel ($babel_peers)" $"Select Mesh Protocol" --column="id" --title $"Mesh Protocol" --column=$"Choose the mesh protocol:" --hide-column=1 --print-column=1 --height=220)

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

temp_script=$HOME/.change_routing
{ echo '#!/bin/bash';
  echo "echo \"\$1\" > $MESH_DEFAULT_PROTOCOL";
  echo "echo \"\$1\" > $MESH_CURRENT_PROTOCOL";
  echo "sed -i \"s|<type>.*|<type>_\${1}._tcp</type>|g\" /etc/avahi/services/routing.service";
  echo 'systemctl restart avahi-daemon';
  echo "IFACE=\$(cat /etc/systemd/system/\${1}.service | grep ExecStart | awk -F ' ' '{print \$2}')";
  echo 'network=fd66:66:66';
  echo "search_ipv6=\$(ifconfig \$1 | grep \$network)";
  echo "if [ \$search_ipv6 ]; then";
  echo "    result=\$(ifconfig \$1 | grep \$network | awk -F ' ' '{print \$2}')";
  echo "    ip -6 addr add \${result}/128 dev \$1";
  echo 'else';
  echo '    ipv6_array=( 1 2 3 4 5 6 7 8 9 0 a b c d e f )';
  echo "    a=\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}";
  echo "    b=\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}";
  echo "    c=\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}";
  echo "    d=\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}";
  echo "    e=\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}\${ipv6_array[\$RANDOM%16]}";
  echo "    result=\$network:\$a:\$b:\$c:\$d:\$e";
  echo "    ip -6 addr add \${result}/128 dev \$1";
  echo 'fi'; } > "$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" 'bmx7'
        mesh_stop_daemon 'bmx6'
        mesh_stop_daemon 'olsr2'
        mesh_stop_daemon 'babel'
        clear
        echo ''
        echo $'Enabling BMX7...'
        sudo systemctl enable bmx7
        echo $'Starting BMX7...'
        sudo systemctl start bmx7
        ;;
    3)  sudo "$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 $'Starting OLSR2...'
        sudo systemctl start olsr2
        ;;
    4)  sudo "$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