Files
home-automation/app/schemas/modbus.py
T
tliu93 682e06d256
frontend / frontend (push) Successful in 2m4s
pytest / test (push) Successful in 7m32s
modbus: add explicit cascade delete (device + readings + toggles + HA cleanup)
A disabled device with historical readings still cannot be deleted by default
(409 guard stays, to prevent accidental data loss). A new explicit opt-in lets
the user remove it for real:

- DELETE /api/modbus/devices/{uuid}?cascade=true removes the device's readings
  and exposed_entity_toggle rows, then the device, in one transaction (FK order:
  readings before device). Best-effort clears the HA discovery configs first
  (MQTT not connected -> no-op, never blocks the delete). Default (no cascade)
  unchanged. Returns 200 with deletion counts.
- Frontend: a 'Force Delete (all data)' button appears only after the 409, with
  a red irreversible warning; cascade is sent only on that explicit action.
- Also corrected a stale comment: FK RESTRICT IS enforced at runtime now.
2026-06-24 17:38:52 +02:00

172 lines
4.9 KiB
Python

"""Pydantic schemas for the Modbus device CRUD + readings + metrics API (M5-T05)."""
from __future__ import annotations
from datetime import datetime
from typing import Any
from pydantic import BaseModel, Field
# ---------------------------------------------------------------------------
# Device schemas
# ---------------------------------------------------------------------------
class ModbusDeviceCreate(BaseModel):
"""Request body for POST /api/modbus/devices."""
friendly_name: str = Field(..., min_length=1, max_length=255)
transport: str = Field(default="tcp", max_length=16)
host: str = Field(..., min_length=1, max_length=255)
port: int = Field(default=502, ge=1, le=65535)
unit_id: int = Field(default=1, ge=0, le=247)
profile: str = Field(..., min_length=1, max_length=64)
poll_interval_s: int = Field(default=5, ge=1, le=3600)
enabled: bool = Field(default=True)
class ModbusDeviceUpdate(BaseModel):
"""Request body for PATCH /api/modbus/devices/{uuid} — all fields optional."""
friendly_name: str | None = Field(default=None, min_length=1, max_length=255)
transport: str | None = Field(default=None, max_length=16)
host: str | None = Field(default=None, min_length=1, max_length=255)
port: int | None = Field(default=None, ge=1, le=65535)
unit_id: int | None = Field(default=None, ge=0, le=247)
profile: str | None = Field(default=None, min_length=1, max_length=64)
poll_interval_s: int | None = Field(default=None, ge=1, le=3600)
enabled: bool | None = None
class ModbusDeviceResponse(BaseModel):
"""Response schema for a single Modbus device."""
uuid: str
friendly_name: str
transport: str
host: str
port: int
unit_id: int
profile: str
poll_interval_s: int
enabled: bool
last_poll_at: datetime | None
last_poll_ok: bool | None
created_at: datetime
updated_at: datetime
model_config = {"from_attributes": True}
class ModbusDeviceListResponse(BaseModel):
"""Response schema for listing Modbus devices."""
items: list[ModbusDeviceResponse]
total: int
# ---------------------------------------------------------------------------
# Reading schemas
# ---------------------------------------------------------------------------
class ModbusReadingResponse(BaseModel):
"""A single reading row: timestamp + decoded payload."""
recorded_at: datetime
payload: dict[str, Any]
model_config = {"from_attributes": True}
class ModbusReadingsResponse(BaseModel):
"""Response schema for the readings time-range endpoint."""
items: list[ModbusReadingResponse]
class ModbusLatestResponse(BaseModel):
"""Response for the /latest endpoint.
``found`` is False and ``recorded_at``/``payload`` are None when the device
has no readings yet. Callers should check ``found`` before using the values.
"""
found: bool
recorded_at: datetime | None
payload: dict[str, Any] | None
# ---------------------------------------------------------------------------
# Metrics / profile schemas
# ---------------------------------------------------------------------------
class MetricInfo(BaseModel):
"""Metadata for a single measurable quantity in a device's profile."""
key: str
label: str
unit: str
device_class: str
class ModbusMetricsResponse(BaseModel):
"""Response schema for GET /api/modbus/devices/{uuid}/metrics."""
profile: str
metrics: list[MetricInfo]
# ---------------------------------------------------------------------------
# Profile list schema
# ---------------------------------------------------------------------------
class ProfileSummary(BaseModel):
"""One entry in the GET /api/modbus/profiles response."""
name: str
description: str
class ModbusProfilesResponse(BaseModel):
"""Response schema for GET /api/modbus/profiles."""
profiles: list[ProfileSummary]
# ---------------------------------------------------------------------------
# Test-read schema
# ---------------------------------------------------------------------------
class ModbusTestReadResponse(BaseModel):
"""Response for POST /api/modbus/devices/{uuid}/test.
On success ``ok=True`` and ``payload`` contains the decoded values.
On failure ``ok=False`` and ``error`` describes the problem.
"""
ok: bool
payload: dict[str, Any] | None = None
error: str | None = None
# ---------------------------------------------------------------------------
# Cascade-delete schema
# ---------------------------------------------------------------------------
class ModbusDeleteResponse(BaseModel):
"""Response for DELETE /api/modbus/devices/{uuid}?cascade=true.
Returned only when cascade deletion succeeds (HTTP 200). Non-cascade
successful deletes continue to return HTTP 204 (no body).
"""
deleted: bool
readings_deleted: int
toggles_deleted: int