#!/usr/bin/env python
#
# Copyright (C) 2011-2014  Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

# This is a program to convert the json dump of the overlaps between artifacts
# in a format more suited to shell programs, or human reading

import json

import cliapp


class ListOverlaps(cliapp.Application):

    @staticmethod
    def _load_overlap(filename):
        data = json.load(open(filename), encoding='unicode-escape')
        overlaps = dict((frozenset(pair[0]), set(pair[1])) for pair in data)
        return overlaps

    def cmd_groups(self, args):
        overlaps = ListOverlaps._load_overlap(args[0])
        for group in overlaps:
            print(' '.join(sorted(group)))

    def cmd_list_files(self, args):
        overlaps = self._load_overlap(args[0])
        group = frozenset(args[1:])
        for filename in overlaps[group]:
            print filename

ListOverlaps().run()