#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# Copyright © 2014 Holger Levsen <holger@layer-acht.org>
#           © 2015 Mattia Rizzolo <mattia@mapreri.org>
# Licensed under GPL-2
#
# Depends: python3
#
# Get the output of dd-list(1) and turn it into some nice html

import lzma
from urllib.request import urlopen
from subprocess import Popen, PIPE
from tempfile import NamedTemporaryFile

from reproducible_common import *


arch = 'amd64' # the arch is only relevant for link targets here
mirror = 'http://deb.debian.org/debian'

bugs = get_bugs()

for suite in SUITES:
    remotefile = mirror + '/dists/' + suite + '/main/source/Sources.xz'
    os.makedirs('/tmp/reproducible', exist_ok=True)
    with NamedTemporaryFile(dir='/tmp/reproducible') as sources:
        log.info('Downloading sources file for ' + suite + ': ' + remotefile)
        xfile = lzma.decompress(urlopen(remotefile).read())
        if xfile:
            sources.write(xfile)
        else:
            log.error('Failed to get the ' + suite + 'sources')
            continue
        query = "SELECT s.name " + \
                "FROM results AS r JOIN sources AS s ON r.package_id=s.id " + \
                "WHERE r.status='unreproducible' AND s.suite='{suite}'"
        try:
            pkgs = [x[0] for x in query_db(query.format(suite=suite))]
        except IndexError:
            log.error('Looks like there are no unreproducible packages...')
        p = Popen(('dd-list --stdin --sources ' + sources.name).split(),
                  stdout=PIPE, stdin=PIPE, stderr=PIPE)
        out, err = p.communicate(input=('\n'.join(pkgs)).encode())
        if err:
            log.error('dd-list printed some errors:\n' + err.decode())
        log.debug('dd-list output:\n' + out.decode())

        html = '<p>The following maintainers and uploaders are listed '
        html += 'for packages in ' + suite + ' which have built '
        html += 'unreproducibly. Please note that the while the link '
        html += 'always points to the amd64 version, it\'s possible that'
        html += 'the unreproducibility is only present in another architecture(s).</p>\n<p><pre>'
        out = out.decode().splitlines()
        get_mail = re.compile('<(.*)>')
        for line in out:
            if line[0:3] == '   ':
                line = line.strip().split(None, 1)
                html += '    '
                # the final strip() is to avoid a newline
                html += link_package(line[0], suite, arch, bugs).strip()
                try:
                    html += ' ' + line[1]  # eventual uploaders sign
                except IndexError:
                    pass
            elif line.strip():  # be sure this is not just an empty line
                email = get_mail.findall(line.strip())[0]
                html += HTML.escape(line.strip())
                html += '<a name="{maint}" href="#{maint}">&para;</a>'.format(
                    maint=email)
            html += '\n'
        html += '</pre></p>'
        title = 'Maintainers of unreproducible packages in ' + suite
        destfile = DEBIAN_BASE + '/' + suite + '/index_dd-list.html'
        suite_arch_nav_template = DEBIAN_URI + '/{{suite}}/index_dd-list.html'
        left_nav_html = create_main_navigation(suite=suite, arch=arch,
            displayed_page='dd_list', no_arch=True,
            suite_arch_nav_template=suite_arch_nav_template)
        write_html_page(title, html, destfile, style_note=True,
                        left_nav_html=left_nav_html)
        log.info('%s/%s/index_dd-list.html published', DEBIAN_URL, suite)