Files
nanobot/nanobot/webui/settings_contracts.py
T

83 lines
2.4 KiB
Python

"""Stable request and error contracts shared by WebUI settings domains."""
from __future__ import annotations
from dataclasses import dataclass
from typing import Any
QueryParams = dict[str, list[str]]
@dataclass(frozen=True)
class SettingsRequest:
"""Transport-neutral input decoded by the settings route facade."""
query: QueryParams
payload: dict[str, Any] | None = None
local_browser: bool = False
@dataclass(frozen=True)
class SettingsRouteResult:
"""Transport-neutral result returned by a settings domain handler."""
payload: dict[str, Any] | None = None
status: int = 200
error: str | None = None
decorate_restart: bool = False
restart_section: str | None = None
clear_restart_section: str | None = None
restart_payload_key: str | None = None
@classmethod
def success(
cls,
payload: dict[str, Any],
*,
decorate_restart: bool = False,
restart_section: str | None = None,
clear_restart_section: str | None = None,
restart_payload_key: str | None = None,
) -> SettingsRouteResult:
return cls(
payload=payload,
decorate_restart=decorate_restart,
restart_section=restart_section,
clear_restart_section=clear_restart_section,
restart_payload_key=restart_payload_key,
)
@classmethod
def failure(cls, status: int, error: str) -> SettingsRouteResult:
return cls(status=status, error=error)
class WebUISettingsError(ValueError):
"""User-facing settings validation failure."""
def __init__(self, message: str, *, status: int = 400) -> None:
super().__init__(message)
self.message = message
self.status = status
def query_first(query: QueryParams, key: str) -> str | None:
values = query.get(key)
return values[0] if values else None
def query_first_alias(query: QueryParams, snake: str, camel: str) -> str | None:
value = query_first(query, snake)
return query_first(query, camel) if value is None else value
def query_has_alias(query: QueryParams, snake: str, camel: str) -> bool:
return snake in query or camel in query
def parse_bool(value: str, field: str) -> bool:
normalized = value.strip().lower()
if normalized not in {"1", "0", "true", "false", "yes", "no"}:
raise WebUISettingsError(f"{field} must be boolean")
return normalized in {"1", "true", "yes"}