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ENI-projet-piscine/apps/backend/app/services/site.py
T
Johan LEROY 5eb74aa64a fix(backend): traite la revue de phyri0s sur la PR #84
Tri non déterministe : `latest_for_site` départage désormais les égalités de
timestamp par `reading_id` décroissant, comme `list_history`. `uq_reading_source`
autorise deux lignes au même `site_id`+`timestamp` quand la `source` diffère, donc
le `LIMIT 1` pouvait renvoyer l'une ou l'autre d'un appel à l'autre.

Tests : trois tests `integration` sur `latest_for_site` (plus récente, égalité de
timestamp, isolation par site). Le test d'égalité échoue sans le correctif ci-dessus.

Duplication : `DataQuality` et le repli vers `critical` sortent dans
`app/services/data_quality.py`, partagé par `stats.py`, `site.py` et `sensor.py`,
qui en portaient trois copies indépendantes. Supprime au passage deux
`# type: ignore[assignment]`.
2026-09-18 10:28:04 +02:00

83 lines
2.6 KiB
Python

from collections.abc import Sequence
from dataclasses import dataclass
from datetime import datetime
from app.models.energy import Site
from app.repositories.reading import ReadingRepository
from app.repositories.site import SiteRepository
from app.services.data_quality import DataQuality, qualite_ou_critique
class SiteError(Exception):
pass
class SiteNotFoundError(SiteError):
pass
@dataclass(frozen=True, slots=True)
class SiteCurrentReading:
timestamp: datetime | None
site_id: str
site_type: str
consumption_kw: float | None
consumption_kwh: float | None
voltage_v: float | None
current_a: float | None
power_factor: float | None
temperature_celsius: float | None
humidity_percent: float | None
null_reasons: list[str]
data_quality: DataQuality
class SiteService:
def __init__(self, *, sites: SiteRepository, readings: ReadingRepository) -> None:
self._sites = sites
self._readings = readings
async def list_all(self) -> Sequence[Site]:
return await self._sites.list_all()
async def get_by_id(self, site_id: str) -> Site:
site = await self._sites.get_by_id(site_id)
if site is None:
raise SiteNotFoundError(site_id)
return site
async def current(self, site_id: str) -> SiteCurrentReading:
site = await self.get_by_id(site_id)
derniere = await self._readings.latest_for_site(site_id)
if derniere is None:
return SiteCurrentReading(
timestamp=None,
site_id=site.site_id,
site_type=site.site_type,
consumption_kw=None,
consumption_kwh=None,
voltage_v=None,
current_a=None,
power_factor=None,
temperature_celsius=None,
humidity_percent=None,
null_reasons=[],
data_quality="critical",
)
return SiteCurrentReading(
timestamp=derniere.timestamp,
site_id=site.site_id,
site_type=site.site_type,
consumption_kw=derniere.consumption_kw,
consumption_kwh=derniere.consumption_kwh,
voltage_v=derniere.voltage_v,
current_a=derniere.current_a,
power_factor=derniere.power_factor,
temperature_celsius=derniere.temperature_celsius,
humidity_percent=derniere.humidity_percent,
null_reasons=derniere.null_reasons or [],
data_quality=qualite_ou_critique(derniere.data_quality),
)