from hypothesis import given, settings

import pytest

from tests import uid_strategy

from vdirsyncer.repair import IrreparableItem, repair_item, repair_storage
from vdirsyncer.storage.memory import MemoryStorage
from vdirsyncer.utils import href_safe
from vdirsyncer.vobject import Item


@given(uid=uid_strategy)
@settings(perform_health_check=False)  # Using the random module for UIDs
def test_repair_uids(uid):
    s = MemoryStorage()
    s.items = {
        'one': (
            'asdf',
            Item(u'BEGIN:VCARD\nFN:Hans\nUID:{}\nEND:VCARD'.format(uid))
        ),
        'two': (
            'asdf',
            Item(u'BEGIN:VCARD\nFN:Peppi\nUID:{}\nEND:VCARD'.format(uid))
        )
    }

    uid1, uid2 = [s.get(href)[0].uid for href, etag in s.list()]
    assert uid1 == uid2

    repair_storage(s, repair_unsafe_uid=False)

    uid1, uid2 = [s.get(href)[0].uid for href, etag in s.list()]
    assert uid1 != uid2


@given(uid=uid_strategy.filter(lambda x: not href_safe(x)))
@settings(perform_health_check=False)  # Using the random module for UIDs
def test_repair_unsafe_uids(uid):
    s = MemoryStorage()
    item = Item(u'BEGIN:VCARD\nUID:{}\nEND:VCARD'.format(uid))
    href, etag = s.upload(item)
    assert s.get(href)[0].uid == uid
    assert not href_safe(uid)

    repair_storage(s, repair_unsafe_uid=True)

    new_href = list(s.list())[0][0]
    assert href_safe(new_href)
    newuid = s.get(new_href)[0].uid
    assert href_safe(newuid)


@pytest.mark.parametrize('uid,href', [
    ('b@dh0mbr3', 'perfectly-fine'),
    ('perfectly-fine', 'b@dh0mbr3')
])
def test_repair_unsafe_href(uid, href):
    item = Item('BEGIN:VCARD\nUID:{}\nEND:VCARD'.format(uid))
    new_item = repair_item(href, item, set(), True)
    assert new_item.raw != item.raw
    assert new_item.uid != item.uid
    assert href_safe(new_item.uid)


def test_repair_do_nothing():
    item = Item('BEGIN:VCARD\nUID:justfine\nEND:VCARD')
    assert repair_item('fine', item, set(), True) is item
    assert repair_item('@@@@/fine', item, set(), True) is item


@pytest.mark.parametrize('raw', [
    'AYYY',
    '',
    '@@@@',
    'BEGIN:VCARD',
    'BEGIN:FOO\nEND:FOO'
])
def test_repair_irreparable(raw):
    with pytest.raises(IrreparableItem):
        repair_item('fine', Item(raw), set(), True)