import sys
import os
import glob
import shutil
import time
import logging
from datetime import datetime, date, timedelta

# start editable vars #
days_old = 28				# how old the files have to be before they are moved
original_folder = "/source/folder"	# folder to move files from
new_folder = "/target/folder"		# folder to move files to
logfile = "/somewhere/log.log"		# log file to record what has happened
# end editable vars #

# start function definitions #
def log(level,msg,tofile=True):
	print msg
	
	if tofile == True:
		if level == 0:
			logger.info(msg)
		else:
			logger.error(msg)
			
def end(code):
	log(0,"End.")
	log(0,"-------------------------")

	sys.exit(code)
# end function definitions #


# start process #

move_date = date.today() - timedelta(days=days_old)
move_date = time.mktime(move_date.timetuple())
logger = logging.getLogger("cuarch")
hdlr = logging.FileHandler(logfile)
hdlr.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s: %(message)s'))
logger.addHandler(hdlr) 
logger.setLevel(logging.INFO)

log(0,"Initialising...")

count = 0
size = 0.0

for filename in glob.glob1(original_folder, "*.*"):
    srcfile = os.path.join(original_folder, filename)
    destfile = os.path.join(new_folder, filename)
    if os.stat(srcfile).st_mtime < move_date:
    	if not os.path.isfile(destfile):
    		size = size + (os.path.getsize(srcfile) / (1024*1024.0))
	        shutil.move(srcfile, destfile)
        
	        log(0,"Archived '" + filename + "'.")
	        count = count + 1

log(0,"Archived " + str(count) + " files, totalling " + str(round(size,2)) + "MB.")
end(0)