#!/usr/bin/env python3

import datetime
import os
import os.path

DATETIMEFORMAT      = "%Y-%m-%d-%H%M"
DISKFORMAT      = DATETIMEFORMAT


basedir = os.environ['HOME']
ctt_dir = os.path.join(basedir, ".ctt")

for project in os.listdir(ctt_dir):
    time_dir = os.path.join(ctt_dir, project)
    for time in os.listdir(time_dir):
        print("Converting dir %s/%s" % (project, time))
        try:
            import_time = datetime.datetime.fromtimestamp(int(time))
        except ValueError as e:
            print("No old style directory %s from project %s - skipping" % (time, project))
            continue

        new_dirname = import_time.strftime(DISKFORMAT)

        print("%s -> %s" % (time, new_dirname))
        src = os.path.join(ctt_dir, project, time)
        dst = os.path.join(ctt_dir, project, new_dirname)
        print("%s -> %s" % (src, dst))

        if os.path.exists(dst):
            print("Cannot overwrite dst: %s, skipping %s" % (dst, src))
            continue

        os.rename(src, dst)