i3lock-delta/download_daemon

#!/usr/bin/env bash
# Get the config
source $HOME/i3lock-delta/box_config

# Get the resolution
resolution=`xdpyinfo | grep dimensions | sed 's/dimensions://;;s/ *//g;s/pixels.*//'`

# Run the main loop
while : ; do
	# Check whether the previous image has been used or not.
	# If no, wait 300 secs and check again.
	[[ `< $HOME/.config/lock_screen.sta` -eq 0 ]] && sleep 300 && continue
	# Download the new image
	$HOME/i3lock-delta/downloader.sh
	if [[ $? -eq 0 ]]; then
		name_photographer="`< /tmp/name_photographer`"

		# Resize, crop, draw a box for clock, write photographer's name.
		convert $HOME/.rand_bg -resize "$resolution^" -crop "$resolution" \
				-draw "fill-opacity 0.4 fill black roundRectangle
				$BOX_TOP_LEFT_X,$BOX_TOP_LEFT_Y $BOX_BOTTOM_RIGHT_X,$BOX_BOTTOM_RIGHT_Y
				$ROUNDENESS,$ROUNDENESS" -pointsize 17 -draw "text $NAME_X,$NAME_Y
				'Photograph by: $name_photographer on Unsplash'" \
				/tmp/temp_lock.png

		# Move to needed place and remove the rest.
		if [[ -f /tmp/temp_lock-0.png ]] ; then
			mv /tmp/temp_lock-0.png $HOME/.rand_bg.png
			rm /tmp/temp_lock-1.png
		fi

		# Remove the original
		rm $HOME/.rand_bg
		# Set the image as unused.
		echo 0 > $HOME/.config/lock_screen.sta
	else
		# If download fails, wait 60 secs and restart.
		sleep 60
	fi
done