#!/usr/bin/env python
# Find junk in my home directory

from __future__ import division, print_function

from colorama import Fore
import os
import os.path
import sys

M = 1024 * 1024


def junk_dirs():
    """Return directories which potentially contain junk"""

    static_junk_dirs = [
        "~/tmp",
        "~/.local/share/Trash",
        "~/rpmbuild",
        "~/RPM",
        "~/.cache/tracker",
        "~/.local/share/apt-dater/history",
    ]
    for d in static_junk_dirs:
        d = os.path.expanduser(d)
        if os.path.exists(d):
            yield d
    for d, _, _ in os.walk(os.path.expanduser("~")):
        if d.endswith(".sync/Archive"):
            yield d


def du(path):
    """Return disk usage of the given directory"""

    def get_blocks(path):
        stat = os.stat(path)
        return (stat.st_ino, stat.st_blocks)

    dd = {}
    ino, blocks = get_blocks(path)
    dd[ino] = blocks
    for dirpath, dirnames, filenames in os.walk(path):
        for filename in dirnames + filenames:
            path = os.path.join(dirpath, filename)
            if os.path.exists(path):
                ino, blocks = get_blocks(path)
                dd[ino] = blocks

    return 512 * sum(dd.values())


def main():
    for d in junk_dirs():
        if os.path.isdir(d):
            du_d = du(d)

            if du_d < 5 * M:
                continue

            if du_d > 100 * M:
                fore = Fore.RED
            elif du_d > 50 * M:
                fore = Fore.YELLOW
            else:
                fore = Fore.RESET

            print(fore + str(du_d // M) + "M\t" + d + Fore.RESET)


main()