import os
import os.path
import datetime
import config
from ftplib import FTP
import shutil

if os.name =='nt':
    root = "//WDsentinel/share/Daily"
elif os.name == 'posix':
    root = '/home/share/Daily'

startdate = datetime.date.today()
for i in range(10):
    workdate = startdate - datetime.timedelta(days=i)
    workdatestr = str(workdate)
    try:
        filelist = [(f, os.stat(os.path.join(root, workdatestr, f)).st_ctime) \
                        for f in os.listdir(os.path.join(root, workdatestr)) if f.startswith("securitiesNpv")]
    except OSError:
        continue

    filelist = sorted(filelist, key = lambda x: x[1], reverse = True)
    if filelist:
        file_to_upload = filelist[0][0]
        newfile_to_upload = file_to_upload
        if workdate < startdate:
            newfile_to_upload = "securitiesNpv{0}.csv".format(
                datetime.datetime.strftime(datetime.datetime.today(), "%Y%m%d_%H%M%S"))
            # due to the way the drive is mounted, we get an exception when copy
            # tries to change permissions
            try:
                shutil.copy(os.path.join(root, workdatestr, file_to_upload),
                            os.path.join(root, str(startdate), newfile_to_upload))
            except OSError:
                pass
            print("moved file from {0}".format(workdatestr))
        ftp = FTP('ftp.globeop.com')
        ftp.login('srntsftp', config.ftp_password)
        ftp.cwd('incoming')
        with open(os.path.join(root, str(startdate), newfile_to_upload), "rb") as fh:
            ftp.storbinary('STOR ' + newfile_to_upload, fh)
        break

print("done")