import datetime
from typing import Any

from django.utils.functional import Promise
from django.utils.timezone import is_aware

from owslib.encoders import JSONEncoder


class DjangoJSONEncoder(JSONEncoder):
    def default(self, o: Any) -> Any:
        if isinstance(o, Promise):
            return str(o)
        elif isinstance(o, datetime.time):
            if is_aware(o):
                raise ValueError("JSON can't represent timezone-aware times.")
        return super().default(o)