from xsdata.codegen.container import ClassContainer, Steps
from xsdata.codegen.handlers import ResetAttributeSequenceNumbers
from xsdata.codegen.models import Restrictions, Status
from xsdata.models.config import GeneratorConfig
from xsdata.utils.testing import (
    AttrFactory,
    ClassFactory,
    ExtensionFactory,
    FactoryTestCase,
)


class ResetAttributeSequencesTests(FactoryTestCase):
    def setUp(self):
        super().setUp()

        self.config = GeneratorConfig()
        self.container = ClassContainer(config=self.config)
        self.container.step = Steps.FINALIZE
        self.processor = ResetAttributeSequenceNumbers(container=self.container)

    def test_process_without_sequence_fields(self):
        target = ClassFactory.elements(2)
        self.processor.process(target)

    def test_process_without_parent_class(self):
        target = ClassFactory.create(
            attrs=[
                AttrFactory.create(restrictions=Restrictions(sequence=100)),
                AttrFactory.create(restrictions=Restrictions(sequence=100)),
                AttrFactory.create(),
                AttrFactory.create(restrictions=Restrictions(sequence=101)),
                AttrFactory.create(restrictions=Restrictions(sequence=101)),
            ]
        )
        self.processor.process(target)

        actual = [x.restrictions.sequence for x in target.attrs]
        expected = [1, 1, None, 2, 2]
        self.assertEqual(expected, actual)

    def test_process_with_parent_classes(self):
        target = ClassFactory.create(
            status=Status.FINALIZING,
            attrs=[
                AttrFactory.create(restrictions=Restrictions(sequence=100)),
                AttrFactory.create(restrictions=Restrictions(sequence=100)),
                AttrFactory.create(),
                AttrFactory.create(restrictions=Restrictions(sequence=101)),
                AttrFactory.create(restrictions=Restrictions(sequence=101)),
            ],
        )

        parent_a = ClassFactory.create(
            status=Status.RESOLVED,
            attrs=[
                AttrFactory.create(restrictions=Restrictions(sequence=102)),
            ],
        )

        parent_b = ClassFactory.create(
            status=Status.RESOLVED,
            attrs=[
                AttrFactory.create(restrictions=Restrictions(sequence=103)),
            ],
        )

        parent_a.extensions.append(ExtensionFactory.reference(parent_b.qname))
        target.extensions.append(ExtensionFactory.reference(parent_a.qname))

        self.container.add(target)
        self.container.add(parent_a)
        self.container.add(parent_b)
        self.processor.process(target)

        actual = [x.restrictions.sequence for x in target.attrs]
        expected = [3, 3, None, 4, 4]
        self.assertEqual(expected, actual)

        self.assertEqual(2, parent_a.attrs[0].restrictions.sequence)
        self.assertEqual(1, parent_b.attrs[0].restrictions.sequence)