# -*- coding: utf-8 -*-
# Copyright (c) 2015 Romain Command&
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"""Tests for factory_boy/SQLAlchemy interactions."""

import factory
from .compat import unittest
import mock


try:
    import sqlalchemy
except ImportError:
    sqlalchemy = None

if sqlalchemy:
    from factory.alchemy import SQLAlchemyModelFactory
    from .alchemyapp import models
else:

    class Fake(object):
        class Meta:
            sqlalchemy_session = None

    models = Fake()
    models.StandardModel = Fake()
    models.NonIntegerPk = Fake()
    models.session = Fake()
    SQLAlchemyModelFactory = Fake


class StandardFactory(SQLAlchemyModelFactory):
    class Meta:
        model = models.StandardModel
        sqlalchemy_session = models.session

    id = factory.Sequence(lambda n: n)
    foo = factory.Sequence(lambda n: 'foo%d' % n)


class ForceFlushingStandardFactory(SQLAlchemyModelFactory):
    class Meta:
        model = models.StandardModel
        sqlalchemy_session = mock.MagicMock()
        force_flush = True

    id = factory.Sequence(lambda n: n)
    foo = factory.Sequence(lambda n: 'foo%d' % n)


class NonIntegerPkFactory(SQLAlchemyModelFactory):
    class Meta:
        model = models.NonIntegerPk
        sqlalchemy_session = models.session

    id = factory.Sequence(lambda n: 'foo%d' % n)


@unittest.skipIf(sqlalchemy is None, "SQLalchemy not installed.")
class SQLAlchemyPkSequenceTestCase(unittest.TestCase):

    def setUp(self):
        super(SQLAlchemyPkSequenceTestCase, self).setUp()
        StandardFactory.reset_sequence(1)
        NonIntegerPkFactory._meta.sqlalchemy_session.rollback()

    def test_pk_first(self):
        std = StandardFactory.build()
        self.assertEqual('foo1', std.foo)

    def test_pk_many(self):
        std1 = StandardFactory.build()
        std2 = StandardFactory.build()
        self.assertEqual('foo1', std1.foo)
        self.assertEqual('foo2', std2.foo)

    def test_pk_creation(self):
        std1 = StandardFactory.create()
        self.assertEqual('foo1', std1.foo)
        self.assertEqual(1, std1.id)

        StandardFactory.reset_sequence()
        std2 = StandardFactory.create()
        self.assertEqual('foo0', std2.foo)
        self.assertEqual(0, std2.id)

    def test_pk_force_value(self):
        std1 = StandardFactory.create(id=10)
        self.assertEqual('foo1', std1.foo)  # sequence and pk are unrelated
        self.assertEqual(10, std1.id)

        StandardFactory.reset_sequence()
        std2 = StandardFactory.create()
        self.assertEqual('foo0', std2.foo)  # Sequence doesn't care about pk
        self.assertEqual(0, std2.id)


@unittest.skipIf(sqlalchemy is None, "SQLalchemy not installed.")
class SQLAlchemyForceFlushTestCase(unittest.TestCase):
    def setUp(self):
        super(SQLAlchemyForceFlushTestCase, self).setUp()
        ForceFlushingStandardFactory.reset_sequence(1)
        ForceFlushingStandardFactory._meta.sqlalchemy_session.rollback()
        ForceFlushingStandardFactory._meta.sqlalchemy_session.reset_mock()

    def test_force_flush_called(self):
        self.assertFalse(ForceFlushingStandardFactory._meta.sqlalchemy_session.flush.called)
        ForceFlushingStandardFactory.create()
        self.assertTrue(ForceFlushingStandardFactory._meta.sqlalchemy_session.flush.called)

    def test_force_flush_not_called(self):
        ForceFlushingStandardFactory._meta.force_flush = False
        self.assertFalse(ForceFlushingStandardFactory._meta.sqlalchemy_session.flush.called)
        ForceFlushingStandardFactory.create()
        self.assertFalse(ForceFlushingStandardFactory._meta.sqlalchemy_session.flush.called)
        ForceFlushingStandardFactory._meta.force_flush = True


@unittest.skipIf(sqlalchemy is None, "SQLalchemy not installed.")
class SQLAlchemyNonIntegerPkTestCase(unittest.TestCase):
    def setUp(self):
        super(SQLAlchemyNonIntegerPkTestCase, self).setUp()
        NonIntegerPkFactory.reset_sequence()
        NonIntegerPkFactory._meta.sqlalchemy_session.rollback()

    def test_first(self):
        nonint = NonIntegerPkFactory.build()
        self.assertEqual('foo0', nonint.id)

    def test_many(self):
        nonint1 = NonIntegerPkFactory.build()
        nonint2 = NonIntegerPkFactory.build()

        self.assertEqual('foo0', nonint1.id)
        self.assertEqual('foo1', nonint2.id)

    def test_creation(self):
        nonint1 = NonIntegerPkFactory.create()
        self.assertEqual('foo0', nonint1.id)

        NonIntegerPkFactory.reset_sequence()
        nonint2 = NonIntegerPkFactory.build()
        self.assertEqual('foo0', nonint2.id)

    def test_force_pk(self):
        nonint1 = NonIntegerPkFactory.create(id='foo10')
        self.assertEqual('foo10', nonint1.id)

        NonIntegerPkFactory.reset_sequence()
        nonint2 = NonIntegerPkFactory.create()
        self.assertEqual('foo0', nonint2.id)