import pytest
import factory
from collections import namedtuple
from wtforms import Form, fields
from werkzeug.datastructures import ImmutableMultiDict
from pydantic_form import PydanticForm
from pydantic import BaseModel, ValidationError
from pydantic.types import StrictStr



DataFactories = namedtuple(
    "DataFactories",
    ['valid', 'bad', 'missing']
)

ExpectedErrors = namedtuple(
    "ExpectedErrors",
    ['valid', 'bad', 'missing']
)

Scenario = namedtuple(
    "ScenarioClasses",
    ['form', 'schema', 'keys', 'data_factory', 'errors']
)


@pytest.fixture
def scenario(request):
    return request.getfixturevalue(request.param)


class MissingDataFactory(factory.Factory):
    class Meta:
        model = dict


# Simplest case

simple_keys = [('integer',), ('string',)]

class SimpleSchema(BaseModel):
    integer: int
    string: StrictStr


class SimpleWTForm(Form):
    _schema = SimpleSchema

    integer = fields.IntegerField()
    string = fields.StringField()


class SimpleForm(SimpleWTForm, PydanticForm):
    _schema = SimpleSchema


class SimpleDataFactory(factory.Factory):
    class Meta:
        model = dict

    integer = factory.Faker('pyint')
    string = factory.Faker('pystr')

class SimpleBadDataFactory(factory.Factory):
    class Meta:
        model = dict

    integer = factory.Faker('pystr')
    string = factory.Faker('pyint')

simple_data_factories = DataFactories(
    SimpleDataFactory,
    SimpleBadDataFactory,
    MissingDataFactory
)

simple_expected_errors = ExpectedErrors(
    {},
    {
        ('integer',): 'type_error.integer',
        ('string',): 'type_error.str'
    },
    {
        ('integer',): 'value_error.missing',
        ('string',): 'value_error.missing',
    }
)

@pytest.fixture
def scenario_simple():
    return Scenario(
        SimpleForm,
        SimpleSchema,
        simple_keys,
        simple_data_factories,
        simple_expected_errors
    )

# Case with one level of nesting

nested_keys = [('integer',), ('nested', 'integer'), ('nested', 'string')]

class NestedSchema(BaseModel):
    integer: int
    nested: SimpleSchema


class NestedWTForm(Form):
    _schema = NestedSchema

    integer = fields.IntegerField()
    nested = fields.FormField(form_class=SimpleForm)


class NestedForm(NestedWTForm, PydanticForm):
    _schema = NestedSchema


class NestedDataFactory(factory.Factory):
    class Meta:
        model = dict

    integer = factory.Faker('pyint')
    nested = factory.SubFactory(SimpleDataFactory)


class NestedBadDataFactory(factory.Factory):
    class Meta:
        model = dict

    integer = factory.Faker('pystr')
    nested = factory.SubFactory(SimpleBadDataFactory)

nested_data_factories = DataFactories(
    NestedDataFactory,
    NestedBadDataFactory,
    MissingDataFactory
)

nested_expected_errors = ExpectedErrors(
    {},
    {
        ('integer',): 'type_error.integer',
        ('nested', 'integer',): 'type_error.integer',
        ('nested', 'string',): 'type_error.str'
    },
    {
        ('integer',): 'value_error.missing',
        ('nested',): 'value_error.missing',
    }
)

@pytest.fixture
def scenario_nested():
    return Scenario(
        NestedForm,
        NestedSchema,
        nested_keys,
        nested_data_factories,
        nested_expected_errors
    )


# Case with two levels of nesting
double_nested_keys = [
    ('integer',),
    ('double_nested', 'integer'),
    ('double_nested', 'nested', 'integer'),
    ('double_nested', 'nested', 'string')
]

class DoubleNestedSchema(BaseModel):
    integer: int
    double_nested: NestedSchema


class DoubleNestedWTForm(Form):
    _schema = DoubleNestedSchema

    integer = fields.IntegerField()
    double_nested = fields.FormField(form_class=NestedWTForm)


class DoubleNestedForm(DoubleNestedWTForm, PydanticForm):
    _schema = DoubleNestedSchema
    double_nested = fields.FormField(form_class=NestedForm)


class DoubleNestedDataFactory(factory.Factory):
    class Meta:
        model = dict

    integer = factory.Faker('pyint')
    double_nested = factory.SubFactory(NestedDataFactory)


class DoubleNestedBadDataFactory(factory.Factory):
    class Meta:
        model = dict

    integer = factory.Faker('pystr')
    double_nested = factory.SubFactory(NestedBadDataFactory)

double_nested_data_factories = DataFactories(
    DoubleNestedDataFactory,
    DoubleNestedBadDataFactory,
    MissingDataFactory
)

double_nested_expected_errors = ExpectedErrors(
    {},
    {
        ('integer',): 'type_error.integer',
        ('double_nested', 'integer',): 'type_error.integer',
        ('double_nested', 'nested', 'integer',): 'type_error.integer',
        ('double_nested', 'nested', 'string',): 'type_error.str'
    },
    {
        ('integer',): 'value_error.missing',
        ('double_nested',): 'value_error.missing',
    }
)

@pytest.fixture
def scenario_double_nested():
    return Scenario(
        DoubleNestedForm,
        DoubleNestedSchema,
        double_nested_keys,
        double_nested_data_factories,
        double_nested_expected_errors
    )