# Path: periods/models.py
# def today():
#     def timezone(self):
#     def first_days(self):
#     def cycle_count(self):
#     def get_previous_period(self, previous_to):
#     def get_next_period(self, after=None):
#     def get_cache_key(self, data_type):
#     def get_cycle_lengths(self):
#     def get_sorted_cycle_lengths(self):
#     def get_full_name(self):
#     def get_short_name(self):
#     def __str__(self):
#     def choices(cls, blank=False):
#     def __str__(self):
#     def _get_ordinal_value(self, index):
#     def cycle_length_minimum(self):
#     def cycle_length_maximum(self):
#     def _get_statistics_value(self, method_name, num_values_required=1):
#     def cycle_length_mean(self):
#     def cycle_length_median(self):
#     def cycle_length_mode(self):
#     def cycle_length_standard_deviation(self):
#     def current_cycle_length(self):
#     def first_date(self):
#     def first_day(self):
#     def set_start_date_and_day(self, min_timestamp):
#     def predicted_events(self):
#     def __str__(self):
#     def get_from_server(from_date):
#     def get_for_date(cls, from_date, to_date):
# def create_auth_token(sender, instance=None, created=False, **kwargs):
# def add_to_permissions_group(sender, instance, **kwargs):
# def create_statistics(sender, instance, **kwargs):
# def update_statistics(sender, instance, **kwargs):
# class User(AbstractEmailUser):
# class LabelChoicesEnum(enum.Enum):
# class FlowLevel(LabelChoicesEnum):
# class FlowColor(LabelChoicesEnum):
# class ClotSize(LabelChoicesEnum):
# class CrampLevel(LabelChoicesEnum):
# class FlowEvent(models.Model):
# class Statistics(models.Model):
#     class Meta:
# class AerisData(models.Model):
#     SPOTTING = 0
#     LIGHT = 1
#     MEDIUM = 2
#     HEAVY = 3
#     VERY_HEAVY = 4
#     PINK = 0
#     LIGHT_RED = 1
#     RED = 2
#     DARK_RED = 3
#     BROWN = 4
#     BLACK = 5
#     SMALL = 0
#     MEDIUM = 1
#     LARGE = 2
#     SLIGHT = 0
#     MODERATE = 1
#     SEVERE = 2


import django_filters
from rest_framework import serializers
from periods import models as period_models

class NullableEnumField(serializers.ChoiceField):
    """
    Field that handles empty entries for EnumFields
    """

    def __init__(self, enum, **kwargs):
        super(NullableEnumField, self).__init__(enum.choices(), allow_blank=True, required=False)

    def to_internal_value(self, data):
        if data == '' and self.allow_blank:
            return None

        return super(NullableEnumField, self).to_internal_value(data)


class FlowEventSerializer(serializers.ModelSerializer):
    clots = NullableEnumField(period_models.ClotSize)
    cramps = NullableEnumField(period_models.CrampLevel)

    class Meta:
        model = period_models.FlowEvent
        exclude = ('user',)


class FlowEventFilter(django_filters.FilterSet):
    min_timestamp = django_filters.DateTimeFilter(name="timestamp", lookup_type='gte')
    max_timestamp = django_filters.DateTimeFilter(name="timestamp", lookup_type='lte')

    class Meta:

# Path: periods/models.py
# def today():
#     def timezone(self):
#     def first_days(self):
#     def cycle_count(self):
#     def get_previous_period(self, previous_to):
#     def get_next_period(self, after=None):
#     def get_cache_key(self, data_type):
#     def get_cycle_lengths(self):
#     def get_sorted_cycle_lengths(self):
#     def get_full_name(self):
#     def get_short_name(self):
#     def __str__(self):
#     def choices(cls, blank=False):
#     def __str__(self):
#     def _get_ordinal_value(self, index):
#     def cycle_length_minimum(self):
#     def cycle_length_maximum(self):
#     def _get_statistics_value(self, method_name, num_values_required=1):
#     def cycle_length_mean(self):
#     def cycle_length_median(self):
#     def cycle_length_mode(self):
#     def cycle_length_standard_deviation(self):
#     def current_cycle_length(self):
#     def first_date(self):
#     def first_day(self):
#     def set_start_date_and_day(self, min_timestamp):
#     def predicted_events(self):
#     def __str__(self):
#     def get_from_server(from_date):
#     def get_for_date(cls, from_date, to_date):
# def create_auth_token(sender, instance=None, created=False, **kwargs):
# def add_to_permissions_group(sender, instance, **kwargs):
# def create_statistics(sender, instance, **kwargs):
# def update_statistics(sender, instance, **kwargs):
# class User(AbstractEmailUser):
# class LabelChoicesEnum(enum.Enum):
# class FlowLevel(LabelChoicesEnum):
# class FlowColor(LabelChoicesEnum):
# class ClotSize(LabelChoicesEnum):
# class CrampLevel(LabelChoicesEnum):
# class FlowEvent(models.Model):
# class Statistics(models.Model):
#     class Meta:
# class AerisData(models.Model):
#     SPOTTING = 0
#     LIGHT = 1
#     MEDIUM = 2
#     HEAVY = 3
#     VERY_HEAVY = 4
#     PINK = 0
#     LIGHT_RED = 1
#     RED = 2
#     DARK_RED = 3
#     BROWN = 4
#     BLACK = 5
#     SMALL = 0
#     MEDIUM = 1
#     LARGE = 2
#     SLIGHT = 0
#     MODERATE = 1
#     SEVERE = 2


# Path: periods/serializers.py
import django_filters
from rest_framework import serializers
from periods import models as period_models


class NullableEnumField(serializers.ChoiceField):
    """
    Field that handles empty entries for EnumFields
    """

    def __init__(self, enum, **kwargs):
        super(NullableEnumField, self).__init__(enum.choices(), allow_blank=True, required=False)

    def to_internal_value(self, data):
        if data == '' and self.allow_blank:
            return None

        return super(NullableEnumField, self).to_internal_value(data)


class FlowEventSerializer(serializers.ModelSerializer):
    clots = NullableEnumField(period_models.ClotSize)
    cramps = NullableEnumField(period_models.CrampLevel)

    class Meta:
        model = period_models.FlowEvent
        exclude = ('user',)


class FlowEventFilter(django_filters.FilterSet):
    min_timestamp = django_filters.DateTimeFilter(name="timestamp", lookup_type='gte')
    max_timestamp = django_filters.DateTimeFilter(name="timestamp", lookup_type='lte')

    class Meta:

        model = period_models.FlowEvent