#!/usr/bin/env python
import glob
import os
import sys
import shutil
from datetime import datetime

MOUNT_DIR = '/mnt/dcim'
DST_DIR = '/home/lorien/photos'

def find_source():
    dirs = glob.glob(MOUNT_DIR + '/*_pana')
    pairs = [(int(x.split('/')[-1].split('_')[0]), x) for x in dirs]
    last = sorted(pairs, key=lambda x: x[0], reverse=True)[0]
    return last[1]


def process_source(source):
    dates = {}
    for fname in glob.glob(source + '/*.jpg'):
        ctime = datetime.fromtimestamp(os.stat(fname).st_ctime)
        dates.setdefault(ctime.date(), []).append(fname)
    for day, fnames in sorted(dates.iteritems(), key=lambda x: x[0]):
        dst_dir = DST_DIR + '/%d/%02d/%02d' % (day.year, day.month, day.day) 
        print 'Processing %s. Directory: %s' % (day.strftime('%d %b %Y'), dst_dir)
        if not os.path.exists(dst_dir):
            os.makedirs(dst_dir)
        for fname in fnames:
            img_fname = os.path.basename(fname)
            dst_path = os.path.join(dst_dir, img_fname)
            if not os.path.exists(dst_path):
                sys.stdout.write('+')
                sys.stdout.flush()
                shutil.copy(fname, dst_path)
            else:
                sys.stdout.write('e')
                sys.stdout.flush()
        print


if __name__ == '__main__':
    source = find_source()
    process_source(source)