feat(backend): expose GET /api/v1/sites/{site_id}/current pour l'issue #29
Ajoute la dernière mesure d'un site (SiteService.current), en réutilisant
la vérification d'existence déjà en place pour GET /sites/{site_id} :
SiteService gagne une dépendance ReadingRepository, sur le modèle de
composition déjà utilisé par StatsService/SensorService. Un site connu
sans lecture rend 200 avec les champs de mesure à null et
data_quality="critical" ; seul un site_id absent rend 404.
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@@ -1,4 +1,5 @@
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from collections.abc import Callable, Iterator
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from datetime import UTC, datetime
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from uuid import uuid4
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import pytest
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@@ -9,7 +10,9 @@ from app.api.deps import get_current_principal, get_site_service
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from app.core.principal import Principal
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from app.core.roles import AccountKind, Role
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from app.models.energy import Site
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from app.services.site import SiteNotFoundError
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from app.services.site import SiteCurrentReading, SiteNotFoundError
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TIMESTAMP = datetime(2026, 9, 16, 12, 0, tzinfo=UTC)
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def principal(role: Role = Role.LECTEUR) -> Principal:
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@@ -33,10 +36,28 @@ def site(site_id: str = "site-1") -> Site:
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)
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def lecture_actuelle(site_id: str = "site-1") -> SiteCurrentReading:
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return SiteCurrentReading(
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timestamp=TIMESTAMP,
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site_id=site_id,
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site_type="industriel",
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consumption_kw=87.34,
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consumption_kwh=87.34,
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voltage_v=401.2,
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current_a=132.5,
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power_factor=0.923,
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temperature_celsius=22.1,
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humidity_percent=58.4,
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null_reasons=[],
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data_quality="good",
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)
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class FauxService:
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def __init__(self, erreur: Exception | None = None) -> None:
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self._erreur = erreur
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self.site = site()
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self.actuel = lecture_actuelle()
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async def list_all(self) -> list[Site]:
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return [self.site]
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@@ -46,6 +67,11 @@ class FauxService:
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raise self._erreur
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return self.site
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async def current(self, site_id: str) -> SiteCurrentReading:
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if self._erreur is not None:
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raise self._erreur
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return self.actuel
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@pytest.fixture
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def lecteur_connecte(app: FastAPI) -> Iterator[None]:
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@@ -109,6 +135,30 @@ async def test_get_site_returns_404_for_an_unknown_site(
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assert response.status_code == 404
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async def test_get_current_returns_the_latest_reading(
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servi: Callable[..., FauxService], client: AsyncClient
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) -> None:
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servi()
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response = await client.get("/api/v1/sites/site-1/current")
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assert response.status_code == 200
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corps = response.json()
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assert corps["site_id"] == "site-1"
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assert corps["data_quality"] == "good"
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assert corps["consumption_kw"] == 87.34
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async def test_get_current_returns_404_for_an_unknown_site(
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servi: Callable[..., FauxService], client: AsyncClient
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) -> None:
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servi(SiteNotFoundError("site-inconnu"))
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response = await client.get("/api/v1/sites/site-inconnu/current")
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assert response.status_code == 404
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async def test_list_sites_reaches_the_repository_through_the_session(
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lecteur_connecte: None, fake_session: Callable[..., None], client: AsyncClient
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) -> None:
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