import datetime
import enum
from typing import Any
from typing_extensions import runtime_checkable
try:
from pydantic import BaseModel # type: ignore
PYDANTIC_INSTALLED = True
except ImportError:
from typing import ClassVar, Protocol
@runtime_checkable
class BaseModel(Protocol): # type: ignore[no-redef]
"""Placeholder Implementation"""
model_fields: ClassVar[dict[str, Any]]
def model_dump_json(self, *args: Any, **kwargs: Any) -> str:
"""Placeholder for pydantic.BaseModel.model_dump_json
Returns:
The JSON representation of the model.
"""
return ""
PYDANTIC_INSTALLED = False # pyright: ignore[reportConstantRedefinition]
def _type_to_string(value: Any) -> str: # pragma: no cover
if isinstance(value, datetime.datetime):
return convert_datetime_to_gmt_iso(value)
if isinstance(value, datetime.date):
return convert_date_to_iso(value)
if isinstance(value, enum.Enum):
return str(value.value)
if PYDANTIC_INSTALLED and isinstance(value, BaseModel):
return value.model_dump_json()
try:
val = str(value)
except Exception as exc:
raise TypeError from exc
return val
try:
from msgspec.json import Decoder, Encoder
encoder, decoder = Encoder(enc_hook=_type_to_string), Decoder()
decode_json = decoder.decode
def encode_json(data: Any) -> str: # pragma: no cover
return encoder.encode(data).decode("utf-8")
except ImportError:
try:
from orjson import OPT_NAIVE_UTC, OPT_SERIALIZE_NUMPY, OPT_SERIALIZE_UUID
from orjson import dumps as _encode_json
from orjson import loads as decode_json # type: ignore[no-redef,assignment]
def encode_json(data: Any) -> str: # pragma: no cover
return _encode_json(
data, default=_type_to_string, option=OPT_SERIALIZE_NUMPY | OPT_NAIVE_UTC | OPT_SERIALIZE_UUID
).decode("utf-8") # type: ignore[no-any-return]
except ImportError:
from json import dumps as encode_json # type: ignore[assignment] # noqa: F401
from json import loads as decode_json # type: ignore[assignment] # noqa: F401
def convert_datetime_to_gmt_iso(dt: datetime.datetime) -> str: # pragma: no cover
"""Handle datetime serialization for nested timestamps."""
if not dt.tzinfo:
dt = dt.replace(tzinfo=datetime.timezone.utc)
return dt.isoformat().replace("+00:00", "Z")
def convert_date_to_iso(dt: datetime.date) -> str: # pragma: no cover
"""Handle datetime serialization for nested timestamps."""
return dt.isoformat()
