#!/bin/bash
#
# .---.                  .              .
# |                      |              |
# |--- .--. .-.  .-.  .-.|  .-. .--.--. |.-.  .-. .--.  .-.
# |    |   (.-' (.-' (   | (   )|  |  | |   )(   )|  | (.-'
# '    '     --'  --'  -' -  -' '  '   -' -'   -' '   -  --'
#
#                    Freedom in the Cloud
#
# A script to easily locate mesh peers and start communicating

# License
# =======
#
# Copyright (C) 2015 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 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

IRC_PORT=6697
PEERS_FILE=/tmp/meshpeers.txt

if [ ! -f /usr/bin/batman ]; then
    echo 'Mesh networking is not configured on your system'
    echo 'Run freedombone-client to install the necessary packages'
    exit 1
fi

if [ ! -f /tmp/meshtype ]; then
    sudo batman start
    clear
fi

avahi-browse -at | awk -F ' ' '{print $4}' > $PEERS_FILE

if [ ! -f $PEERS_FILE ]; then
   echo 'No peers were found'
   exit 0
fi

ctr=0
while IFS='' read -r line || [[ -n "$line" ]]; do
    ctr=$((ctr + 1))
done < "$PEERS_FILE"

if [ ${ctr} -lt "2" ]; then
   echo 'No peers were found'
   exit 0
fi

echo 'Choose a peer to connect to:'
idx=1
while IFS='' read -r line || [[ -n "$line" ]]; do
    echo "    $idx. $line"
    idx=$((idx + 1))
done < "$PEERS_FILE"

peer_index=0
read peer_index

# get the avahi domain name
AVAHI_DOMAIN=
idx=1
while IFS='' read -r line || [[ -n "$line" ]]; do
    if [ ${idx} -eq "$peer_index" ]; then
        AVAHI_DOMAIN=${line}.local
    fi
    idx=$((idx + 1))
done < "$PEERS_FILE"

if [ ! $AVAHI_DOMAIN ]; then
    echo 'No domain name'
    exit 2
fi

# Connect to IRC
if [ ! -f /usr/bin/irssi ]; then
    if [ ! -f /usr/local/bin/irssi ]; then
        echo 'You need irssi installed on your system'
        sudo batman stop
        exit 3
    fi
fi

MESH_RUNNING=$(pgrep ngircd > /dev/null && echo Running)' >> /usr/bin/$WATCHDOG_SCRIPT_NAME

irssi -c $AVAHI_DOMAIN -p $IRC_PORT -n $USER

exit 0