#!/bin/bash
#set -x
#
DIR=/home/houghi/wallpaper
FILE_DIR=/media/movies/wallpaper_backup/1920x1200/
WALLPAPER_LIST=$DIR/wallpaper_list
LATEST=$DIR/latest_files
for COUNT in `seq 0 1`
do
	test -f $WALLPAPER_LIST || touch $WALLPAPER_LIST
	LINES=$((`wc -l < $WALLPAPER_LIST`))
	#Make a new list
	if [ $LINES -eq "0" ]
	then
		killall wterm
		find -L $FILE_DIR -type f -name "*.jpg"|grep -vE '/thumbs/|/slides/' > $WALLPAPER_LIST
		LINES=$((`wc -l < $WALLPAPER_LIST`))
		test $LATEST && rm $LATEST
		touch $LATEST
                DISPLAY=:0.0 wterm -g 150x5-0+1142 -tr -bg green -fg yellow -sh +sb -e tail -f $LATEST &
	fi
	# Pich a random file
	FILE=`head -$((($RANDOM * 32678 +$RANDOM) % $LINES + 1)) $WALLPAPER_LIST|tail -n 1`
	# Take it off the list
	grep $FILE -v $WALLPAPER_LIST > $WALLPAPER_LIST.bak
	mv $WALLPAPER_LIST.bak $WALLPAPER_LIST
	# Display on the two screens
	DISPLAY=:0.${COUNT} /usr/bin/wmsetbg -a $FILE &
	# Determine the output for wterm
        SIZE=`jhead $FILE|grep Resolution`
        WIDTH=`echo $SIZE|awk '{print $3}'`
        HEIGHT=`echo $SIZE|awk '{print $5}'`
        WIDTH=`printf %.4d $WIDTH`
        HEIGHT=`printf %.4d $HEIGHT`
        SIZE=`echo $WIDTH × $HEIGHT`
	# Add to the history list.	
	echo "${COUNT} $SIZE $FILE" >> $LATEST
done