from rest_framework import serializers

from django.urls import reverse

from misago.threads.models import PostEdit


__all__ = ["PostEditSerializer"]


class PostEditSerializer(serializers.ModelSerializer):
    diff = serializers.SerializerMethodField()

    url = serializers.SerializerMethodField()

    class Meta:
        model = PostEdit
        fields = ["id", "edited_on", "editor_name", "editor_slug", "diff", "url"]

    def get_diff(self, obj):
        return obj.get_diff()

    def get_url(self, obj):
        return {"editor": self.get_editor_url(obj)}

    def get_editor_url(self, obj):
        if obj.editor_id:
            return reverse(
                "misago:user", kwargs={"slug": obj.editor_slug, "pk": obj.editor_id}
            )
        else:
            return None