from datetime import datetime
from typing import Any

from ninja import Schema
from pydantic import Field


class FieldError(Schema):
    field: str = Field(
        ...,
        description="Field name with error (can be nested)",
    )
    issue: str = Field(..., description="Problem description")
    rejected_value: Any = Field(
        None, description="Value that failed validation"
    )


class ApiError(Schema):
    code: str
    message: str
    trace_id: str
    timestamp: datetime
    path: str
    details: dict[str, Any] | None = None


class ValidationError(ApiError):
    field_errors: list[FieldError]