#!/usr/bin/env python3

import subprocess
from os.path import join
import requests

from lib.net import download
from lib.parse import parse_release, get_time, get_date


roots = {
    'devuan': {
        'local': 'spool/devuan/dists/jessie',
        'remote': 'http://auto.mirror.devuan.org/devuan/dists/jessie',
    },
    'debian': {
        'local': 'spool/debian/dists/jessie',
        'remote': 'http://ftp.debian.org/debian/dists/jessie',
    },
    'debian-sec': {
        'local': 'spool/dists/jessie/updates',
        'remote': 'http://security.debian.org/dists/jessie/updates',
    },
}

release_file = 'Release'

def merge_files(repo, relfile):
    """
    Loads the local release and call the merge process
    """
    print('Loading Release')
    rel = join(roots[repo]['local'], relfile)
    release_contents = open(rel).read()

    hashes = parse_release(release_contents)

    for k in hashes.keys():
        # if k.endswith('Packages.gz'):
        if k.endswith('/binary-armhf/Packages.gz'):
            # skip empty files
            # TODO: probably best to copy it in place when this occurs
            if hashes[k] == 'f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec':
                print('Skipping %s' % k)
                continue

            subprocess.run(['./amprolla-merge', k])


local_rel = join(roots['devuan']['local'], release_file)
remote_rel = join(roots['devuan']['remote'], release_file)

local_contents = open(local_rel).read()
local_date = get_date(local_contents)

r = requests.get(remote_rel)
remote_contents = r.text
remote_date = get_date(remote_contents)

print('Local date: %s' % local_date)
print('Remote date: %s' % remote_date)

if get_time(remote_date) > get_time(local_date):
    # dump new release in place and merge
    # NOTE: when testing, watch out because you lose the old Release file in
    # spool
    print('Remote is newer')
    download(remote_rel, local_rel)
    merge_files('devuan', local_rel)