from rest_framework import serializers

from authentication.models import ExtendedUser
from inventory.models import Event
from tickets.models import IssueThread, ItemRelation


class RelationSerializer(serializers.ModelSerializer):
    class Meta:
        model = ItemRelation
        fields = ('id', 'status', 'timestamp', 'item', 'issue_thread')


class BasicIssueSerializer(serializers.ModelSerializer):
    assigned_to = serializers.SlugRelatedField(slug_field='username', queryset=ExtendedUser.objects.all(),
                                               allow_null=True, required=False)
    event = serializers.SlugRelatedField(slug_field='slug', queryset=Event.objects.all(),
                                         allow_null=True, required=False)

    class Meta:
        model = IssueThread
        fields = ('id', 'name', 'state', 'assigned_to', 'uuid', 'event')
        read_only_fields = ('id', 'timeline', 'last_activity', 'uuid', 'related_items')