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"""Library for parsing rfc5545 types."""
from __future__ import annotations
import logging
from typing import Any, get_origin
from pydantic import BaseModel
from pydantic.fields import FieldInfo
from ical.util import get_field_type
_LOGGER = logging.getLogger(__name__)
def _all_fields(cls: type[BaseModel]) -> dict[str, FieldInfo]:
all_fields: dict[str, FieldInfo] = {}
for name, model_field in cls.model_fields.items():
all_fields[name] = model_field
if model_field.alias is not None:
all_fields[model_field.alias] = model_field
return all_fields
def parse_parameter_values(
cls: type[BaseModel], values: dict[str, Any]
) -> dict[str, Any]:
"""Convert property parameters to pydantic fields."""
_LOGGER.debug("parse_parameter_values=%s", values)
if params := values.get("params"):
all_fields = _all_fields(cls)
for param in params:
if not (field := all_fields.get(param["name"])):
continue
annotation = get_field_type(field.annotation)
if get_origin(annotation) is list:
values[param["name"]] = param["values"]
else:
if len(param["values"]) > 1:
raise ValueError("Unexpected repeated property parameter")
values[param["name"]] = param["values"][0]
return values
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