"""

Serializers for model core classes

"""

from rest_framework import serializers

from notes.models import Note, Session

class DetailNoteSerializer(serializers.ModelSerializer):

    class Meta:

        model = Note

        fields = (

            'ext_id', 'version', 'created', 'updated',

            'plain', 'html', 'raw',

            'categorization', 'margin_note', 'tc_start', 'tc_end'

        )

        read_only_fields = ('ext_id', 'version', 'created', 'updated')

class ListNoteSerializer(serializers.ModelSerializer):

    class Meta:

        model = Note

        fields = (

            'ext_id', 'tc_start', 'tc_end'

        )

        read_only_fields = ('ext_id', )

class ListSessionSerializer(serializers.ModelSerializer):

    owner = serializers.SlugRelatedField(

        read_only=True, slug_field='username', default=serializers.CurrentUserDefault())

    class Meta:

        model = Session

        fields = (

            'ext_id', 'version', 'created', 'updated',

            'owner', 'title', 'description', 'protocol'

        )

        read_only_fields = ('ext_id', 'version', 'created', 'updated', 'owner')

class DetailSessionSerializer(serializers.ModelSerializer):

    owner = serializers.SlugRelatedField(read_only=True, slug_field='username')

    notes = DetailNoteSerializer(many=True, read_only=True)

    class Meta:

        model = Session

        fields = (

            'ext_id', 'version', 'created', 'updated',

            'owner', 'title', 'description', 'protocol',

            'notes'

        )

        read_only_fields = ('ext_id', 'version', 'created', 'updated', 'owner')