#!/bin/bash
#
# Astrandom v3, last revised 4/4/2013
#
# Script to connect to a random Allstar Node, by K0KN 2/2011
#
# Usage = astrandom [your node#] [0] [2] [3] ; 0 = update list only 2 = monitor only, 3 = transceive
#
# Note: Lynx is required to create node list.
#
# The "20plus" and "allstarrandom" audio files are available via WGET:
# wget www.qsl.net/k0kn/k0kn_extra_sounds.tgz
#
# You can place any node numbers that you do not wish to dial in the DENYLIST file specified below, one per line. Do not leave any
# blank lines in this file. For example: (do not include the # of course)
#
# 2000
# 2001
# 29000   

CUSTOM=/dev/shm
LOGFILE="/var/log/asterisk/connectlog"
DENYLIST="/home/kyle/astrandom_deny"
FILENAME1="/dev/shm/astrandom.x1"
FILENAME2="/dev/shm/astrandom.x2"
SOUNDS="/etc/asterisk/sounds"

if [ "$1" == "" ] ; then
echo "Usage = astrandom [your node#] [0] [2] [3]"; exit
fi

if [ "$2" == "" ] ; then
echo "Usage = astrandom [your node#] [0] [2] [3]"; exit
fi

if ! [ -f $DENYLIST ] ; then
touch $DENYLIST
fi

# Clean up old temp files 
if [ -f "$CUSTOM"/random_list ]
then
rm "$CUSTOM"/random_list
fi
if [ -f "$CUSTOM"/random_temp ]
then
rm "$CUSTOM"/random_temp
fi
if [ -f "$CUSTOM"/random_count ]
then
rm "$CUSTOM"/random_count
fi

#
asterisk -rx "rpt localplay $1 $SOUNDS/allstarrandom"

# Download current Allstar node list
lynx -dump -nolist http://stats.allstarlink.org/ > "$CUSTOM"/random_temp

# Remove header
awk 'FNR>7{print}' "$CUSTOM"/random_temp > "$CUSTOM"/random_list
rm -f "$CUSTOM"/random_temp

# Count number of stations listed
wc -l "$CUSTOM"/random_list > "$CUSTOM"/random_count
LINES=$(cut -d " " -f1 "$CUSTOM"/random_count)
LINES=$(( $LINES - 2 ))
echo "Number of logged in nodes: $LINES"

# Remove whitespaces
cat "$CUSTOM"/random_list | sed 's/^[ \t]*//;s/[ \t]*$//' > "$CUSTOM"/random_temp
rm -f "$CUSTOM"/random_list

# Remove footer
head -n$LINES "$CUSTOM"/random_temp > "$CUSTOM"/random_list2

# Clean up Temp Files
rm -f "$CUSTOM"/random_temp
rm -f "$CUSTOM"/random_count

# Remove uptime etc
awk -F" " '{for(i=0;++i<=NF-5;)printf $i" ";print $(NF-4)}' "$CUSTOM"/random_list2 > "$CUSTOM"/random_list

# Generate Random Line # between 1 and number of lines in file
RAN_NODE=$[ ( $RANDOM % $LINES )  + 1 ]
echo "random number =" $RAN_NODE

# Copy Random line to temp file
sed -n ""$RAN_NODE"p" "$CUSTOM"/random_list  > "$CUSTOM"/random_node

# Parse temp file
node_num=$(cut -c 1-5 "$CUSTOM"/random_node)
echo "node number =" $node_num 
echo $node_num > "$CUSTOM"/random_anode_dialed

if [ "$2" == "0" ] ; then
echo "Update list only"
exit
fi

# Check to see if random node is in deny list
while IFS= read -r line
do
echo "Deny node: $line"
if [ $line == $node_num ] 
then 
  echo "Random node $node_num in deny list! Exiting!" 
echo $(date) "Random Allstar script - denied node $node_num" >> $LOGFILE
asterisk -rx "rpt localplay $1 $SOUNDS/nodedeny"
exit
fi
done < $DENYLIST

# Node logging
echo $(date) "Random Allstar script - called node $node_num" >> $LOGFILE
echo ""

# Make Call
echo "rpt fun $1 *$2$node_num"
asterisk -rx "rpt fun $1 *$2$node_num"

sleep 2

# Get list of all connected nodes
asterisk -rx "rpt nodes $1" > $FILENAME1

if ! [ -f $FILENAME1 ] ; then
touch $FILENAME1
fi

if grep -q "<NONE>" $FILENAME1 ; then
rm -f $FILENAME1
touch $FILENAME1
fi

# Remove banner and blank lines
cat $FILENAME1 | grep -v "*" > $FILENAME2

if [ -f $FILENAME2 ] ; then
sed '/^$/d' $FILENAME2 > $FILENAME1
fi

# Count number of connected nodes
TOTALCOUNT=($( wc -w $FILENAME1))
echo "Total connected nodes: $TOTALCOUNT"

# Speak number of connected nodes
if [ $TOTALCOUNT -lt 21 ]
   then
asterisk -rx "rpt localplay $1 /var/lib/asterisk/sounds/digits/$TOTALCOUNT"
   fi

if [ $TOTALCOUNT -gt 20 ]
   then
asterisk -rx "rpt localplay $1 $SOUNDS/20plus"
   fi

# done
exit 0 
fi