Dedup _resolve_service_record into shared service_resolution module

Extract the duplicated _resolve_service_record helper (identical in
routers/monitoring.py and routers/authentik_users.py) into a shared
services/service_resolution.py module. Both routers now import
resolve_service_record from the shared module.

The authentik router previously hardcoded service_type='authentik' in
its local copy; the shared helper takes service_type as a param (same
as monitoring's did).

Tests updated: test_api.py patches now target the correct module paths
(resolve_service_record on the monitoring module where it's imported,
build_service_record on the service_resolution module).

283 backend tests pass; ruff clean.
This commit is contained in:
Developer
2026-07-06 12:25:17 +00:00
parent 1e636fdbe2
commit 691d78ff06
4 changed files with 71 additions and 75 deletions
@@ -20,8 +20,9 @@ from media_library_viewer_api.config import get_settings
from media_library_viewer_api.dependencies import get_mail_queue, get_settings_store
from media_library_viewer_api.services.mail_queue import MailQueue
from media_library_viewer_api.services.mailer import validate_smtp_settings
from media_library_viewer_api.services.service_resolution import resolve_service_record
from media_library_viewer_api.services.settings_store import SettingsStore
from media_library_viewer_api.widgets.sources import ServiceRecord, build_service_record
from media_library_viewer_api.widgets.sources import ServiceRecord
logger = logging.getLogger(__name__)
@@ -36,29 +37,6 @@ class MessageRequest(BaseModel):
html_body: str
def _resolve_service_record(
store: SettingsStore,
service_id: str | None = None,
) -> ServiceRecord | None:
"""Return the requested authentik instance, else the first enabled one.
Returns ``None`` when the instance does not exist / is the wrong type, or
when no enabled ``authentik`` instance is configured.
"""
service_type = "authentik"
if service_id:
row = store.get_service(service_id)
if not row or row.get("service_type") != service_type:
return None
if not row.get("enabled", True):
return None
return build_service_record(store, row)
for row in store.list_services(service_type):
if row.get("enabled", True):
return build_service_record(store, row)
return None
def _build_client(service: ServiceRecord) -> AuthentikClient:
base_url = str(service.config.get("base_url") or "").rstrip("/")
api_token = str(service.secrets.get("api_token") or "")
@@ -82,7 +60,7 @@ def get_authentik_users(
store: SettingsStore = Depends(get_settings_store),
) -> dict[str, Any]:
"""Paginated Authentik user directory for a specific service instance."""
service = _resolve_service_record(store, service_id)
service = resolve_service_record(store, "authentik", service_id)
if service is None:
logger.info("Authentik users requested but no enabled authentik service for id=%s", service_id)
return _empty("Authentik service not configured")
@@ -102,7 +80,7 @@ def get_authentik_message_status(
mail_queue: MailQueue = Depends(get_mail_queue),
) -> dict[str, Any]:
"""Mail-queue status snapshot for the Authentik messaging tab."""
service = _resolve_service_record(store, service_id)
service = resolve_service_record(store, "authentik", service_id)
if service is None:
return {"state": "stopped", "worker_running": False, "error": "Authentik service not configured"}
return mail_queue.status()
@@ -116,7 +94,7 @@ def post_authentik_message(
mail_queue: MailQueue = Depends(get_mail_queue),
) -> dict[str, Any]:
"""Enqueue an email to Authentik-sourced recipients via the mail queue."""
service = _resolve_service_record(store, service_id)
service = resolve_service_record(store, "authentik", service_id)
if service is None:
return {"status": "error", "error": "Authentik service not configured"}
@@ -15,34 +15,14 @@ import requests
from fastapi import APIRouter, Body, Depends
from media_library_viewer_api.dependencies import get_settings_store
from media_library_viewer_api.services.service_resolution import resolve_service_record
from media_library_viewer_api.services.settings_store import SettingsStore
from media_library_viewer_api.services.targets import build_node_exporter_targets
from media_library_viewer_api.widgets.sources import ServiceRecord, build_service_record
from media_library_viewer_api.widgets.sources import ServiceRecord
logger = logging.getLogger(__name__)
def _resolve_service_record(
store: SettingsStore, service_type: str, service_id: str | None = None
) -> ServiceRecord | None:
"""Return the requested service instance, else the first enabled one.
Returns ``None`` when the instance does not exist / is the wrong type, or
when no enabled instance of ``service_type`` is configured.
"""
if service_id:
row = store.get_service(service_id)
if not row or row.get("service_type") != service_type:
return None
if not row.get("enabled", True):
return None
return build_service_record(store, row)
for row in store.list_services(service_type):
if row.get("enabled", True):
return build_service_record(store, row)
return None
def _base_url(service: ServiceRecord) -> str:
return str(service.config.get("base_url") or "").rstrip("/")
@@ -104,7 +84,7 @@ def get_alertmanager_alerts(
is configured the endpoint returns an empty summary with an
``alertmanager_not_configured`` error so the UI can render a health card.
"""
service = _resolve_service_record(store, "alertmanager", service_id)
service = resolve_service_record(store, "alertmanager", service_id)
if service is None:
return {"total": 0, "by_severity": {}, "alerts": [], "error": "alertmanager_not_configured"}
try:
@@ -149,7 +129,7 @@ def get_alertmanager_status(
store: SettingsStore = Depends(get_settings_store),
) -> dict[str, Any]:
"""Return Alertmanager cluster/status for the UI health card."""
service = _resolve_service_record(store, "alertmanager", service_id)
service = resolve_service_record(store, "alertmanager", service_id)
if service is None:
return {
"up": False,
@@ -198,7 +178,7 @@ def get_grafana_status(
store: SettingsStore = Depends(get_settings_store),
) -> dict[str, Any]:
"""Probe a Grafana service instance's ``/api/health`` endpoint."""
service = _resolve_service_record(store, "grafana", service_id)
service = resolve_service_record(store, "grafana", service_id)
if service is None:
return _status_response(None, error="no_service_configured")
try:
@@ -221,7 +201,7 @@ def get_prometheus_status(
store: SettingsStore = Depends(get_settings_store),
) -> dict[str, Any]:
"""Probe a Prometheus service instance's health and build info."""
service = _resolve_service_record(store, "prometheus", service_id)
service = resolve_service_record(store, "prometheus", service_id)
if service is None:
return _status_response(None, error="no_service_configured")
base = _base_url(service)
@@ -0,0 +1,37 @@
"""Shared helpers for resolving service instances at request time.
Extracted from the duplicated ``_resolve_service_record`` helpers that lived
in ``routers/monitoring.py`` and ``routers/authentik_users.py``. Both routers
need the same logic: return the requested service instance (by id), or fall
back to the first enabled instance of the type. Returns ``None`` when the
instance does not exist, is the wrong type, is disabled, or when no enabled
instance of the type is configured.
"""
from __future__ import annotations
from media_library_viewer_api.services.settings_store import SettingsStore
from media_library_viewer_api.widgets.sources import ServiceRecord, build_service_record
def resolve_service_record(
store: SettingsStore,
service_type: str,
service_id: str | None = None,
) -> ServiceRecord | None:
"""Return the requested service instance, else the first enabled one.
Returns ``None`` when the instance does not exist / is the wrong type, or
when no enabled instance of ``service_type`` is configured.
"""
if service_id:
row = store.get_service(service_id)
if not row or row.get("service_type") != service_type:
return None
if not row.get("enabled", True):
return None
return build_service_record(store, row)
for row in store.list_services(service_type):
if row.get("enabled", True):
return build_service_record(store, row)
return None
+23 -22
View File
@@ -26,6 +26,7 @@ from media_library_viewer_api.widgets.sources import ServiceRecord
# Short alias for the monitoring router module under test.
_MON = "media_library_viewer_api.routers.monitoring"
_SVC = "media_library_viewer_api.services.service_resolution"
# --- Fixtures ---
@@ -496,7 +497,7 @@ class TestMonitoring:
class TestResolveServiceRecord:
"""Unit tests for _resolve_service_record (service_id + first-enabled paths)."""
"""Unit tests for resolve_service_record (service_id + first-enabled paths)."""
def _store(self, rows):
store = MagicMock()
@@ -509,31 +510,31 @@ class TestResolveServiceRecord:
return store
def test_service_id_match_returns_record(self):
from media_library_viewer_api.routers.monitoring import _resolve_service_record
from media_library_viewer_api.services.service_resolution import resolve_service_record
row = {"id": "am1", "service_type": "alertmanager", "name": "AM", "enabled": True, "config": {}, "secrets": {}}
store = self._store([row])
with patch(f"{_MON}.build_service_record", return_value="RECORD") as mock_build:
result = _resolve_service_record(store, "alertmanager", "am1")
with patch(f"{_SVC}.build_service_record", return_value="RECORD") as mock_build:
result = resolve_service_record(store, "alertmanager", "am1")
assert result == "RECORD"
mock_build.assert_called_once_with(store, row)
def test_service_id_type_mismatch_returns_none(self):
from media_library_viewer_api.routers.monitoring import _resolve_service_record
from media_library_viewer_api.services.service_resolution import resolve_service_record
row = {"id": "x1", "service_type": "grafana", "name": "G", "enabled": True, "config": {}, "secrets": {}}
store = self._store([row])
assert _resolve_service_record(store, "alertmanager", "x1") is None
assert resolve_service_record(store, "alertmanager", "x1") is None
def test_service_id_disabled_returns_none(self):
from media_library_viewer_api.routers.monitoring import _resolve_service_record
from media_library_viewer_api.services.service_resolution import resolve_service_record
row = {"id": "am1", "service_type": "alertmanager", "name": "AM", "enabled": False, "config": {}, "secrets": {}}
store = self._store([row])
assert _resolve_service_record(store, "alertmanager", "am1") is None
assert resolve_service_record(store, "alertmanager", "am1") is None
def test_no_service_id_returns_first_enabled(self):
from media_library_viewer_api.routers.monitoring import _resolve_service_record
from media_library_viewer_api.services.service_resolution import resolve_service_record
rows = [
{
@@ -554,16 +555,16 @@ class TestResolveServiceRecord:
},
]
store = self._store(rows)
with patch(f"{_MON}.build_service_record", return_value="RECORD") as mock_build:
result = _resolve_service_record(store, "alertmanager", None)
with patch(f"{_SVC}.build_service_record", return_value="RECORD") as mock_build:
result = resolve_service_record(store, "alertmanager", None)
assert result == "RECORD"
mock_build.assert_called_once_with(store, rows[1])
def test_no_service_id_and_none_enabled_returns_none(self):
from media_library_viewer_api.routers.monitoring import _resolve_service_record
from media_library_viewer_api.services.service_resolution import resolve_service_record
store = self._store([])
assert _resolve_service_record(store, "alertmanager", None) is None
assert resolve_service_record(store, "alertmanager", None) is None
class TestSettingsMachines:
@@ -624,7 +625,7 @@ class TestAlertmanager:
def test_alerts_endpoint_when_unreachable(self, test_client):
service = _am_service()
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", side_effect=Exception("connection refused")),
):
response = test_client.get("/api/monitoring/alerts")
@@ -651,7 +652,7 @@ class TestAlertmanager:
}
resp.raise_for_status = MagicMock()
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", return_value=resp),
):
response = test_client.get("/api/monitoring/alerts")
@@ -669,7 +670,7 @@ class TestAlertmanager:
resp.json.return_value = {"status": "success", "data": []}
resp.raise_for_status = MagicMock()
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", return_value=resp) as mock_get,
):
test_client.get("/api/monitoring/alerts")
@@ -687,7 +688,7 @@ class TestAlertmanager:
def test_alertmanager_status_when_unreachable(self, test_client):
service = _am_service()
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", side_effect=Exception("refused")),
):
response = test_client.get("/api/monitoring/alertmanager-status")
@@ -707,7 +708,7 @@ class TestAlertmanager:
}
resp.raise_for_status = MagicMock()
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", return_value=resp),
):
response = test_client.get("/api/monitoring/alertmanager-status")
@@ -753,7 +754,7 @@ class TestGrafanaStatus:
id="g1", service_type="grafana", name="Grafana", config={"base_url": "http://grafana:3000"}
)
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", side_effect=Exception("refused")),
):
response = test_client.get("/api/monitoring/grafana-status")
@@ -771,7 +772,7 @@ class TestGrafanaStatus:
resp.json.return_value = {"version": "11.3.1", "database": "ok"}
resp.raise_for_status = MagicMock()
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", return_value=resp),
):
response = test_client.get("/api/monitoring/grafana-status")
@@ -795,7 +796,7 @@ class TestPrometheusStatus:
id="p1", service_type="prometheus", name="Prometheus", config={"base_url": "http://prometheus:9090"}
)
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", side_effect=Exception("refused")),
):
response = test_client.get("/api/monitoring/prometheus-status")
@@ -814,7 +815,7 @@ class TestPrometheusStatus:
build_info.raise_for_status = MagicMock()
build_info.json.return_value = {"status": "success", "data": {"version": "2.55.1"}}
with (
patch(f"{_MON}._resolve_service_record", return_value=service),
patch(f"{_MON}.resolve_service_record", return_value=service),
patch(f"{_MON}.requests.get", side_effect=[health, build_info]),
):
response = test_client.get("/api/monitoring/prometheus-status")