from app.services.email_sender_identity import find_sender_candidates


def test_shared_contact_and_domain_preserve_all_companies():
    calls = []
    def query(sql, params):
        calls.append(params)
        if len(calls) == 1:
            return [dict(id=1, name='Hus A', kind='customer', source='contact_email', contact_name='Anne'),
                    dict(id=2, name='Hus B', kind='customer', source='contact_email', contact_name='Anne')]
        return [dict(id=1, name='Hus A', kind='customer', source='exact_domain'),
                dict(id=3, name='Leverandør', kind='vendor', source='exact_domain')]
    result = find_sender_candidates('Anne <ANNE@example.dk>', query)
    assert result['address'] == 'anne@example.dk'
    assert result['ambiguous'] is True
    assert [(r['kind'], r['id']) for r in result['candidates']] == [('customer', 1), ('customer', 2), ('vendor', 3)]
    assert result['candidates'][0]['contact_name'] == 'Anne'
    assert calls[0] == ('anne@example.dk',) * 4


def test_public_domain_can_match_exact_contact_but_never_domain():
    calls = []
    def query(sql, params):
        calls.append(sql)
        return [dict(id=2, name='Kunden', kind='customer', source='contact_email')]
    result = find_sender_candidates('person@gmail.com', query, {'gmail.com'})
    assert len(calls) == 1
    assert not result['ambiguous']


def test_missing_address_does_not_query_database():
    def forbidden(*args):
        raise AssertionError('No DB query expected')
    assert find_sender_candidates('', forbidden)['candidates'] == []


def test_supplier_contact_matches_person_before_supplier_domain():
    def query(sql, params):
        if 'JOIN vendor_contacts' in sql:
            assert 'vc.contact_id = ct.id' in sql
            assert 'v.id = vc.vendor_id' in sql
            assert params == ('person@example.dk',) * 4
            return [dict(id=8, name='Leverandør A', kind='vendor', source='contact_email',
                         contact_id=12, contact_name='Kontaktperson')]
        return [dict(id=8, name='Leverandør A', kind='vendor', source='exact_domain')]
    result = find_sender_candidates('Person <PERSON@example.dk>', query)
    assert not result['ambiguous']
    assert len(result['candidates']) == 1
    assert result['candidates'][0]['source'] == 'contact_email'
    assert result['candidates'][0]['contact_id'] == 12