#!/opt/bin/bash
#
# *************
# Configuration
REMOTE="/opt/bin/transmission-remote"
PATH=/opt/bin:$PATH
USERNAME=""
PASSWORD=""
MAXDOWN="1"
MAXACTIVE="2"
CONFIG="/tmp/hdd/volumes/HDD1/Torrent/config/settings.json"
#
# *************
# Set-up variables
CMD="$REMOTE --auth $USERNAME:$PASSWORD"
LOGCMD="/usr/bin/logger -t transmission-queue "
MAXRATIO=$(cat $CONFIG | grep \"ratio-limit\":)
MAXRATIO=${MAXRATIO#*\"ratio-limit\": }
MAXRATIO=${MAXRATIO%*, }
#
# *************
# deal with downloads
DOWNACTIVE="$($CMD -l | tail --lines=+2 | grep -v 100% | grep -v Sum | grep -v Stopped | wc -l)"
if [ $MAXDOWN -lt $DOWNACTIVE ]; then
   DOWNTOSTOP="$($CMD -l | tail --lines=+2 | grep -v 100% | grep -v Sum | grep -v Stopped | \
      tail -n $(expr $DOWNACTIVE - $MAXDOWN) | awk '{ print $1; }')"
   for ID in $DOWNTOSTOP; do
      NAME="$($CMD --torrent $ID --info | grep Name:)"
      $LOGCMD "<<< $ID: ${NAME#*Name: }"
      $CMD --torrent $ID --stop >> /dev/null 2>&1
   done
else
   [ $(expr $MAXDOWN - $DOWNACTIVE) -gt 0 ] && (
   DOWNINACTIVE="$($CMD -l | tail --lines=+2 | grep -v 100% | grep Stopped | wc -l)"
   [ $DOWNINACTIVE -gt 0 ] && (
      DOWNTOSTART="$($CMD -l | tail --lines=+2 | grep -v 100% | grep Stopped | \
         head -n $(expr $MAXDOWN - $DOWNACTIVE) | awk '{ print $1; }')"
      for ID in $DOWNTOSTART; do
         NAME="$($CMD --torrent $ID --info | grep Name:)"
         $LOGCMD ">>> $ID: ${NAME#*Name: }"
         $CMD --torrent $ID --start >> /dev/null 2>&1
      done
      )
   )
fi
# Then deal with total active
ACTIVE="$($CMD -l | tail --lines=+2 | grep -v Sum | grep -v Stopped | wc -l)"
if [ $MAXACTIVE -lt $ACTIVE ]; then
   TOSTOP="$($CMD -l | tail --lines=+2 | grep 100% | grep -v Stopped | \
      tail -n $(expr $ACTIVE - $MAXACTIVE) | awk '{ print $1; }')"
   for ID in $TOSTOP; do
      NAME="$($CMD --torrent $ID --info | grep Name:)"
      $LOGCMD "<<< $ID: ${NAME#*Name: }"
      $CMD --torrent $ID --stop >> /dev/null 2>&1
   done
else
   [ $(expr $MAXACTIVE - $ACTIVE) -gt 0 ] && (
   SEEDINACTIVE="$($CMD -l | tail --lines=+2 | grep 100% | grep Stopped | \
      awk -v ratio=$MAXRATIO '{ if (strtonum(substr($0,52,4)) < ratio) print $0 ;}' | wc -l)"
   [ $SEEDINACTIVE -gt 0 ] && (
      TOSTART="$($CMD -l | tail --lines=+2 | grep 100% | grep Stopped | \
         awk -v ratio=$MAXRATIO '{ if (strtonum(substr($0,52,4)) < ratio) print $0 ;}' | \
         head -n $(expr $MAXACTIVE - $ACTIVE) | awk '{ print $1; }')"
      for ID in $TOSTART; do
         NAME="$($CMD --torrent $ID --info | grep Name:)"
         $LOGCMD ">>> $ID: ${NAME#*Name: }"
         $CMD --torrent $ID --start >> /dev/null 2>&1
      done
      )
   )
fi

isVIRGIN=1
[ -e /opt/etc/init.d/S00optware ] && isVIRGIN=0