#!/bin/bash
 
################################################################################## This is a simple script to shut down the TV with 433mgh network adapter.      #
# The recognition on tv client works with XBMX JSON API. You should enable it   #
# in XBMC. This script uses pilight and curls. Make sure that the components    #
# are already installed and configured.                                         #
#                                                                               #
# This script check every x sec the clients for playing media. In case of empty #
# playlist, save the state and look check again in the next while-period.       #
# If the client nothin play again, send  a power off signal to the              #
# TV-adapter and shotdown also the XBMC client.                                 #
#                                                                               #
# Created by Peter Schleining, free for personal use.                           #
#################################################################################
# =========================
# Set XBMC-TV clients
# =========================
# count of hosts
numHosts=3;
 
# set host ip-adress
HostName[1]="Zimmer1";
TVHost[1]="192.168.2.11"; # XBMC Host ip (Zimmer1)
ExtIP[1]="192.168.2.12" # check second ip ping, if active => stay on
shudoXBMC[1]=1 # 0= send only pilight power off signal, 1= send shutdown to xbmc
 
HostName[2]="Zimmer2";
TVHost[2]="192.168.2.13"; # XBMC Host ip (Zimmer2)
ExtIP[2]="" # check second ip ping, if active =>; stay on
shudoXBMC[2]=0 # 0= send only pilight power off signal, 1= send shutdown to xbmc
 
HostName[3]="Zimmer3";
TVHost[3]="192.168.2.14"; # XBMC Host ip (Zimmer3)
ExtIP[3]="" # check second ip ping, if active => stay on
shudoXBMC[3]=1 # 0= send only pilight power off signal, 1= send shutdown to xbmc
 
# loop delay in sec, default 120 sec
delay=120;
 
# loops until "power off" is sent, default 15
# =>(delay = 120 * 15 = ca. 30min + ping delay)
# => send each 30 min for calming a power off
looppwr=15;
 
# wait for client shutdown process, default 30 sec
waitShdwn=30;
 
# ===================
# Pilight settings
# ===================
# used protocol
proto=pollin;
# 1. power: s = 1, u= 10
pl_u[1]=10;
pl_s[1]=1;
# 2. power: s = 1, u= 11
pl_u[2]=11;
pl_s[2]=1;
# 3. power: s = 1, u= 12
pl_u[3]=12;
pl_s[3]=1;
 
# =========================
# DON'T CHANGE!
# script init variable
# =========================
for i in $(eval echo {1..$numHosts})
do
  TV[$i]=1;
  TMR[$i]=0;
done
 
# ==========================
# run main loop
# ==========================
while [ 1 ]; do
  sleep $delay;
  echo "";
  date;
  echo "===================";
  for i in $(eval echo {1..$numHosts})
  do
    # TV$i, ping and get player status by jason request
    url="http://${TVHost[$i]}/jsonrpc";
    string=`curl -i -X POST -H "Content-Type: application/json" -d '{"jsonrpc": "2.0", "method": "Player.GetActivePlayers", "id": 1}' ${url}`
    png=$(ping -c 1 ${TVHost[$i]} | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }')
    if [[ ${#ExtIP[$i]} > 0 ]]
    then
      png2=$(ping -c 1 ${ExtIP[$i]} | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }');
    else
      png2=0;
    fi
  # if client active, do nothing, else goto if clause
    if [[ ( $string == *\"result\":[]* && $png2 == 0 ) || ( $png == 0 && $png2 == 0 ) ]]
    then
      echo "TV_$i (${HostName[$i]}) can be turned off?";
      if [[ ${TV[$i]} == 1 ]]
      then
        echo "TV_$i (${HostName[$i]}) not in use, check again in the next round...";
        let TV[$i]=0;
      else
        if [[ ${TMR[$i]} == 0 ]]
        then
          if [[ $png && ( ${shudoXBMC[$i]} == 1 ) ]]
          then
            url="http://${TVHost[$i]}/jsonrpc";
            # curl -H "Content-type: application/json" -X POST -d $jsonCommand_shutdown $url;
            string1=`curl -i -X POST -H "Content-Type: application/json" -d '{"jsonrpc": "2.0", "method": "System.Shutdown", "id": 1}' ${url}`;
            echo "TV_$i (${HostName[$i]}) not in use, send 
            counter_tmp=0;
            echo "TV_$i (${HostName[$i]}) waiting for shutdown...";
            echo $string1;
            while [ $png == 1 ]; do
              png=$(ping -c 1 ${TVHost[$i]} | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }')
              if [ `expr $counter_tmp % 5` == 0 ]; then
                echo "TV_$i (${HostName[$i]}) ping state:$png - wait $counter_tmp/$waitShdwn sec";
              fi
              if [[ $counter_tmp == $waitShdwn ]]
              then
                png=0;
              else
                sleep 1;
                let counter_tmp=counter_tmp+1;
              fi
            done
          fi
          echo "TV_$i (${HostName[$i]}) pilight send power off....";
          sleep 2;
          pilight-send -p ${proto} -s ${pl_s[$i]} -u ${pl_u[$i]} -f
          let TMR[$i]=$looppwr;
        else
          echo "TV_$i (${HostName[$i]}) was recently turned off, wait ${TMR[$i]} runs until next send..."
          let TMR[$i]=TMR[$i]-1;
        fi
      fi
    else
      echo "TV_$i (${HostName[$i]}) is watching, do nothing, relax...";
      let TV[$i]=1;
      let TMR[$i]=0;
    fi
  done
done