import pytest
import factory
from collections import namedtuple
from wtforms import Form, fields
from pydantic_form import PydanticForm
from pydantic import BaseModel, ValidationError
from pydantic.types import StrictStr
from typing import List



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

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

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

Keys = namedtuple(
    "Keys",
    ["class_", "instance"]
)

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


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


# Simplest case

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

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


class SimpleWTForm(Form):
    _schema = SimpleSchema

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


class SimpleForm(SimpleWTForm, PydanticForm):
    _schema = SimpleSchema


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

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

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

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

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

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

simple_data_factories = DataFactories(
    SimpleDataFactory,
    SimpleBadDataFactory,
    MissingDataFactory,
    SimpleMixedDataFactory
)

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

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

# Simple list case

simple_list_keys = Keys(
    [('integers',), ('strings',), ('floats',)],
    [
        ('integers', 0), ('integers', 1),
        ('strings', 0), ('strings', 1),
        ('floats', 0), ('floats', 1)
    ],
)

class SimpleListSchema(BaseModel):
    integers: List[int]
    strings: List[StrictStr]
    floats: List[float]

class SimpleListWTForm(Form):
    _schema = SimpleSchema

    integers = fields.FieldList(fields.IntegerField(), min_entries=2)
    strings = fields.FieldList(fields.StringField(), min_entries=2)
    floats = fields.FieldList(fields.FloatField(), min_entries=2)


class SimpleListForm(SimpleListWTForm, PydanticForm):
    _schema = SimpleListSchema


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

    integers = factory.List([factory.Faker('pyint'), factory.Faker('pyint')])
    strings = factory.List([factory.Faker('pystr'), factory.Faker('pystr')])
    floats = factory.List([factory.Faker('pyfloat'), factory.Faker('pyfloat')])

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

    integers = factory.List([factory.Faker('pystr'), factory.Faker('pystr')])
    strings = factory.List([factory.Faker('pyint'), factory.Faker('pyint')])
    floats = factory.List([factory.Faker('pystr'), factory.Faker('pystr')])

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

    integers = factory.List([factory.Faker('pyint'), factory.Faker('pyint')])
    floats = factory.List([factory.Faker('pystr'), factory.Faker('pystr')])

simple_list_data_factories = DataFactories(
    SimpleListDataFactory,
    SimpleListBadDataFactory,
    MissingDataFactory,
    SimpleListMixedDataFactory
)

simple_list_expected_errors = ExpectedErrors(
    {},
    {
        'integers': ['type_error.integer', 'type_error.integer'],
        'strings': ['type_error.str', 'type_error.str'],
        'floats': ['type_error.float', 'type_error.float']
    },
    {
        'integers': 'value_error.missing',
        'strings': 'value_error.missing',
        'floats': 'value_error.missing'
    },
    {
        'strings': 'value_error.missing',
        'floats': ['type_error.float', 'type_error.float']
    }
)

@pytest.fixture
def scenario_simple_list():
    return Scenario(
        SimpleListForm,
        SimpleListSchema,
        simple_list_keys,
        simple_list_data_factories,
        simple_list_expected_errors
    )


# Case with one level of nesting

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

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


class NestedWTForm(Form):
    _schema = NestedSchema

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

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

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

nested_data_factories = DataFactories(
    NestedDataFactory,
    NestedBadDataFactory,
    MissingDataFactory,
    NestedMixedDataFactory
)

nested_expected_errors = ExpectedErrors(
    {},
    {
        'integer': 'type_error.integer',
        'nested': simple_expected_errors.bad
    },
    {
        'integer': 'value_error.missing',
        'nested': 'value_error.missing',
    },
    {
        'nested': simple_expected_errors.mixed
    },
)

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


# Case with one level of nesting inside a list

nested_list_keys = Keys(
    [('integer',), ('nested_list', 'integer'), ('nested_list', 'string'), ('nested_list', 'float')],
    [
        ('integer',),
        ('nested_list', 0, 'integer'),
        ('nested_list', 1, 'integer'),
        ('nested_list', 0, 'string'),
        ('nested_list', 1, 'string'),
        ('nested_list', 0, 'float'),
        ('nested_list', 1, 'float')
    ]
)

class NestedListSchema(BaseModel):
    integer: int
    nested_list: List[SimpleSchema]


class NestedListWTForm(Form):
    _schema = NestedListSchema

    integer = fields.IntegerField()
    nested_list = fields.FieldList(fields.FormField(SimpleForm), min_entries=2)


class NestedListForm(NestedListWTForm, PydanticForm):
    _schema = NestedListSchema


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

    integer = factory.Faker('pyint')
    nested_list = factory.List([
        factory.SubFactory(SimpleDataFactory),
        factory.SubFactory(SimpleDataFactory)
    ])


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

    integer = factory.Faker('pystr')
    nested_list = factory.List([
        factory.SubFactory(SimpleBadDataFactory),
        factory.SubFactory(SimpleBadDataFactory)
    ])


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

    integer = factory.Faker('pyint')
    nested_list = factory.List([
        factory.SubFactory(SimpleMixedDataFactory),
        factory.SubFactory(SimpleMixedDataFactory)
    ])

nested_list_data_factories = DataFactories(
    NestedListDataFactory,
    NestedListBadDataFactory,
    MissingDataFactory,
    NestedListMixedDataFactory
)

nested_list_expected_errors = ExpectedErrors(
    {},
    {
        'integer': 'type_error.integer',
        'nested_list': [
            {'integer': 'type_error.integer'},
            {'string': 'type_error.str'}
        ],
    },
    {
        'integer': 'value_error.missing',
        'nested_list': 'value_error.missing',
    },
    {
        'nested_list': [
            simple_expected_errors.mixed
        ]
    },
)

@pytest.fixture
def scenario_nested_list():
    return Scenario(
        NestedListForm,
        NestedListSchema,
        nested_list_keys,
        nested_list_data_factories,
        nested_list_expected_errors
    )

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

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


class DoubleNestedWTForm(Form):
    _schema = DoubleNestedSchema

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


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

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

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

double_nested_data_factories = DataFactories(
    DoubleNestedDataFactory,
    DoubleNestedBadDataFactory,
    MissingDataFactory,
    DoubleNestedMixedDataFactory
)

double_nested_expected_errors = ExpectedErrors(
    {},
    {
        'integer': 'type_error.integer',
        'double_nested': {
            'integer': 'type_error.integer',
            'nested': simple_expected_errors.bad
        }
    },
    {
        'integer': 'value_error.missing',
        'double_nested': 'value_error.missing',
    },
    {
        'double_nested': {
            'nested': simple_expected_errors.mixed
        }
    },
)

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