#!/bin/bash
# video demo at: http://www.youtube.com/watch?v=aK4mAAScnAo
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# / _` |/ _ \| __| '_ \| |/ _ \ __| | | |
#| (_| | (_) | |_| |_) | |  __/ |_| |_| |
# \__, |\___/ \__|_.__/|_|\___|\__|\__,_|
# |___/                                  
#       http://gotbletu.blogspot.com/ | http://www.youtube.com/user/gotbletu

# A lazy script to download wallpaper and delete old wallpaper at the same time
#  just add it to your cron for automatic and pure laziness
#   all you need is a wallpaper changer for your desktop environment and is a done deal, son LOL

# Variable (you can change any of these to your liking)
real_wall_dir=~/Pictures/Wallpapers
temp_wall_dir=/tmp/wallpaper_interfacelift
expire_wall_date=30
url_wall_link=http://interfacelift.com/wallpaper/downloads/random/hdtv/

# create folders
mkdir -p $real_wall_dir	
mkdir -p $temp_wall_dir

cd $temp_wall_dir

# download wallpapers from site
wget -U "Mozilla/5.0" $(lynx --dump $url_wall_link | awk '/7yz4ma1/ && /jpg/ && !/html/ {print $2}')

# delete any file under 50k in size (to avoid shitty thumnbails or crap quality)
find . -type f -iname "*.jp*g" -size -50k -exec rm {} \;

# change the downloaded wallpaper metadata (modified date to today's date)
#  this makes it easy to see which files are older & to delete later on
find . -type f -iname "*.jp*g" -exec touch -m {} \;

# now that everything is cleaned and filtered
#  send the downloaded images to the wallpaper folder and remove temp folder
find . -type f -iname "*.jp*g" -exec mv {} $real_wall_dir \;
rm -rf $temp_wall_dir

#  delete wallpaper image older then X days
cd $real_wall_dir
find $real_wall_dir -mtime +$expire_wall_date -exec rm {} \;