#!/usr/bin/python
# Copyright (C) 2019-2020 Jelmer Vernooij
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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

"""Tests for debmutate.debhelper."""

from typing import Dict

from debian.changelog import Version

from . import (
    TestCase,
    TestCaseInTempDir,
    )

from debmutate.debhelper import (
    ensure_minimum_debhelper_version,
    MaintscriptEditor,
    MaintscriptMoveConffile,
    )


class EnsureMinumumDebhelperVersionTests(TestCase):

    def test_already(self):
        d = {
            'Build-Depends': 'debhelper (>= 10)',
            }
        self.assertFalse(ensure_minimum_debhelper_version(d, '10'))
        self.assertEqual(d, {'Build-Depends': 'debhelper (>= 10)'})
        self.assertFalse(ensure_minimum_debhelper_version(d, '9'))
        self.assertEqual(d, {'Build-Depends': 'debhelper (>= 10)'})

    def test_already_compat(self):
        d = {
            'Build-Depends': 'debhelper-compat (= 10)',
            }
        self.assertFalse(ensure_minimum_debhelper_version(d, '10'))
        self.assertEqual(d, {'Build-Depends': 'debhelper-compat (= 10)'})
        self.assertFalse(ensure_minimum_debhelper_version(d, '9'))
        self.assertEqual(d, {'Build-Depends': 'debhelper-compat (= 10)'})

    def test_bump(self):
        d = {
            'Build-Depends': 'debhelper (>= 10)',
            }
        self.assertTrue(ensure_minimum_debhelper_version(d, '11'))
        self.assertEqual(d, {'Build-Depends': 'debhelper (>= 11)'})

    def test_bump_compat(self):
        d = {
            'Build-Depends': 'debhelper-compat (= 10)',
            }
        self.assertTrue(ensure_minimum_debhelper_version(d, '11'))
        self.assertEqual(d, {
            'Build-Depends': 'debhelper-compat (= 10), debhelper (>= 11)'})
        self.assertTrue(ensure_minimum_debhelper_version(d, '11.1'))
        self.assertEqual(d, {
            'Build-Depends': 'debhelper-compat (= 10), debhelper (>= 11.1)'})

    def test_not_set(self):
        d: Dict[str, str] = {}
        self.assertTrue(ensure_minimum_debhelper_version(d, '10'))
        self.assertEqual(d, {'Build-Depends': 'debhelper (>= 10)'})

    def test_in_indep(self):
        d = {'Build-Depends-Indep': 'debhelper (>= 9)'}
        self.assertRaises(Exception, ensure_minimum_debhelper_version, d, '10')


class MaintscriptEditorTests(TestCaseInTempDir):

    def test_simple_edit(self):
        self.build_tree_contents([('debian/', ), ('debian/maintscript', """\
mv_conffile /etc/iptotal/apache.conf /etc/apache2/conf-available/iptotal.conf \
0.3.3-13.1~
""")])
        with MaintscriptEditor() as e:
            self.assertEqual([MaintscriptMoveConffile(
                '/etc/iptotal/apache.conf',
                '/etc/apache2/conf-available/iptotal.conf',
                Version('0.3.3-13.1~'))], e.entries)

    def test_simple_missing(self):
        with MaintscriptEditor() as e:
            self.assertEqual([], e.entries)

    def test_simple_comment(self):
        self.build_tree_contents([('debian/', ), ('debian/maintscript', """\
# I am a comment
mv_conffile /etc/iptotal/apache.conf /etc/apache2/conf-available/iptotal.conf \
0.3.3-13.1~
""")])
        with MaintscriptEditor() as e:
            del e[0]
            self.assertRaises(IndexError, e.__delitem__, 0)
        with open('debian/maintscript', 'r') as f:
            self.assertEqual("# I am a comment\n", f.read())
