# -*- coding: UTF-8 -*-
#
# Copyright 2010-2019 The pygit2 contributors
#
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# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
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"""Tests for Tag objects."""

from __future__ import absolute_import
from __future__ import unicode_literals

import pytest

import pygit2
from . import utils

# pypy (in python2 mode) raises TypeError on writing to read-only, so
# we need to check and change the test accordingly
try:
    import __pypy__, sys
    pypy2 =  sys.version_info[0] < 3
except ImportError:
    __pypy__ = None
    pypy2 = False

TAG_SHA = '3d2962987c695a29f1f80b6c3aa4ec046ef44369'


class TagTest(utils.BareRepoTestCase):

    def test_read_tag(self):
        repo = self.repo
        tag = repo[TAG_SHA]
        target = repo[tag.target]
        assert isinstance(tag, pygit2.Tag)
        assert pygit2.GIT_OBJ_TAG == tag.type
        assert pygit2.GIT_OBJ_COMMIT == target.type
        assert 'root' == tag.name
        assert 'Tagged root commit.\n' == tag.message
        assert 'Initial test data commit.\n' == target.message
        assert tag.tagger == pygit2.Signature('Dave Borowitz', 'dborowitz@google.com', 1288724692, -420)

    def test_new_tag(self):
        name = 'thetag'
        target = 'af431f20fc541ed6d5afede3e2dc7160f6f01f16'
        message = 'Tag a blob.\n'
        tagger = pygit2.Signature('John Doe', 'jdoe@example.com', 12347, 0)

        target_prefix = target[:5]
        too_short_prefix = target[:3]
        with pytest.raises(ValueError):
            self.repo.create_tag(name, too_short_prefix, pygit2.GIT_OBJ_BLOB, tagger, message)

        sha = self.repo.create_tag(name, target_prefix, pygit2.GIT_OBJ_BLOB,
                                   tagger, message)
        tag = self.repo[sha]

        assert '3ee44658fd11660e828dfc96b9b5c5f38d5b49bb' == tag.hex
        assert name == tag.name
        assert target == tag.target.hex
        assert tagger == tag.tagger
        assert message == tag.message
        assert name == self.repo[tag.hex].name

    def test_modify_tag(self):
        name = 'thetag'
        target = 'af431f20fc541ed6d5afede3e2dc7160f6f01f16'
        message = 'Tag a blob.\n'
        tagger = ('John Doe', 'jdoe@example.com', 12347)

        tag = self.repo[TAG_SHA]
        error_type = AttributeError if not pypy2 else TypeError
        with pytest.raises(error_type): setattr(tag, 'name', name)
        with pytest.raises(error_type): setattr(tag, 'target', target)
        with pytest.raises(error_type): setattr(tag, 'tagger', tagger)
        with pytest.raises(error_type): setattr(tag, 'message', message)

    def test_get_object(self):
        repo = self.repo
        tag = repo[TAG_SHA]
        assert repo[tag.target].id == tag.get_object().id