#!/bin/sh

# This script takes the last readings of the chilled water meters and the
# electrcical meters and generates a printout of it:


# define logging root
# lg=/home/chris/BTUmetering
lg=MAINPROGROOT

# General header
echo -e "Hello,\n"
echo -e "this is your friendly CQT utility consumption server. We proudly present \nthe latest readings of our utility meters.\n"

# some text for water meters:
echo "First, the direct readings of the chilled water meters:"

#logfilenamelist
logroot=("AHU1" "AHU2" "AHU3" "AHU4" "AHU5" "AHU6" "PCW2" "S14L3")

# go through the list
for unit in ${logroot[@]}
do
    logfile=$lg/log/heat_$unit.log
    
# generate time and response from water meter
    t=($(tail -n 1 $logfile))
    d1=${t[0]}
    d2=$(date -d $d1 +"%d %b %Y")
#echo $logfile ${t[1]}
    echo "$unit: On $d2, ${t[1]}SGT: Heat reading = ${t[2]} kWh" 
done

echo
echo "Then the direct reading of the electrical meters:"

# serial number list of Landis&GYR measurement units.
adrlist=("94529479" "94529480" "94529485" "94529481" "94529484" "94529486" "94529482" "94529487" "94529483" "94529488" "99828529" "99828528")
loglist=("MDB1" "E-MDB1" "EAHU1" "MDB2" "E-MDB2" "EAHU2" "MDB3" "EAHU3" "MDB4" "EAHU4" "MDB6" "EAHU6")

for (( i=0 ; $i<${#adrlist[*]} ; i++))
do
    adr=${adrlist[$i]}
    unit=${loglist[$i]}
    logfile=$lg/log/emeter_$adr.log
    t=($(tail -n 1 $logfile 2>/dev/null ))
    u=$?
    if (($u == 0))
    then
	d1=${t[0]}
	d2=$(date -d $d1 +"%d %b %Y")
	

	echo -e "$unit\t(serial: $adr): On $d2 ${t[1]}SGT: Energy reading: ${t[2]} kWh"
    else
	echo -e "$unit\t(serial: $adr): No data available yet"
    fi
done

echo -e "\nPlease note that the units E-MDB1 and E-MDB2 are labelled differently in the\nelectrical risers (probably MDB6 and MDB7). These taps are supposedly connected to \nthe emergency power supply lines in levels 1 and 2."
echo -e "\nThis is an automatically generated email; please do not respond to this address."
echo -e "The CQT team is relentlessly working to improve the quality of this readout service.\nFeel free to send any feedback to phyck@nus.edu.sg\n\nWith Best Regards,\n\nYour CQT utility server"