from rest_framework import serializers
from .models import Post, PostContent, PostVote
from social.hubs.serializers import TagsSerializer


class PostContentSerializer(serializers.ModelSerializer):
    class Meta:
        model = PostContent
        fields = ['id', 'mime_type', 'file', 'alt_text']
        read_only_fields = ['mime_type']


class PostSerializer(serializers.ModelSerializer):
    contents = PostContentSerializer(many=True, read_only=True)
    tags = TagsSerializer(many=True, read_only=True)

    class Meta:
        model = Post
        fields = ['id', 'content', 'created_at', 'updated_at', 'author', 'hub', 'reply_to', 'tags', 'contents']
        read_only_fields = ['author', 'created_at', 'updated_at']


class PostVoteSerializer(serializers.ModelSerializer):
    class Meta:
        model = PostVote
        fields = ['id', 'post', 'user', 'vote', 'created_at']
        read_only_fields = ['user', 'created_at']


class TagAttachSerializer(serializers.Serializer):
    tag_id = serializers.IntegerField(help_text="PK of the hub tag to attach or detach.")