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#!/usr/bin/bash
# 10Jan2017: V2 (pix are pushed to STAN for processing; replace TIMERS with PATH services)
# SJP 30 Dec 2015 V1 (Copy and process photos from a cam-equipped raspi)
########### Constants ##################
wanWebServer="f3rr3t.com"
#sourcedir="/home/st33v/pix" # where the image is on the source computer (i.e. $campi)
thisdir="/home/st33v/cams" # this directory (on this computer)
threshold="2000" # minimum value of average pixel brightness. Tests if pic is too dark
########### end Consts ################
# cam names in an array:
#declare -a camz=(neatherd lucerne)
########### Functions ##################
# get the filename of the most recent photo stored on this computer.
########### end Funcs #################
cd ${thisdir}
# record the latest photo BEFORE we look for a new one
newpic=$(ls "$campi"/*.jpg -t | head -1);
# Check to see if the pic is too dark (i.e. taken at night)
mean=$(identify -format %[mean] ${newpic} | sed s/[.].*//)
# echo "mean is $mean"
# too dark (nighttime)
if [[ "${mean}" -lt "${threshold}" ]] ; then
rm $newpic
# echo mean of $mean is too low. It is nighttime.
continue
fi
# Improve sharpness and resize photo, ready for upload to webserver
# Break into two steps to avoid out-of-memory errors (OS kills process)
convert ${newpic} -unsharp 1.5x1+0.7+0.02 temp.jpg
convert temp.jpg -resize 33% -quality 70 ${newpic}
rm temp.jpg
# upload latest pic to web server
# echo "/home/st33v/cams/$newpic"
# echo "$wanWebServer:/home/st33v/farm/cam/$campi/"
scp /home/st33v/cams/$newpic $wanWebServer:/home/st33v/farm/cam/$campi/.
#exit(0) # force success exit code for fussy systemd
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