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feat(jellyseer): stats backend — provider, stat widgets, router (slice 1/3)

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Groundwork for Jellyseerr request stats in the Jellyfin service, behind a
small reusable abstraction so future stats services (Sonarr/Radarr) reuse it.

Backend:
- JellyseerrClient.request_count() -> /api/v1/request/count (normalized
  total/pending/approved/declined/processing/available) and recent_requests()
  -> /api/v1/request mapped to {name,type,status,media_status,created_at}
  with numeric status enums labelled.
- widgets/stats_provider.py: StatsProvider protocol + registry keyed by
  service_type (StatValue/StatsResult). A thin generic interface.
- widgets/jellyseerr_stats.py: JellyseerrStatsProvider registered for the
  Jellyfin service; reuses one authenticated client per service (lru_cache) and
  caches the StatsResult for ~10s under a lock, so multiple widgets + the tab
  collapse onto one Jellyseerr fetch (same lesson as the qBittorrent client).
  Accepts jellyseerr_api_key from secrets OR config during the upcoming
  config->secret migration.
- Jellyfin service gains two widget kinds: `stat` (a Literal selector over the
  six stats — the "extract one value into a widget" affordance) and
  `stats_overview` (all stats + recent list).
- widgets router routes widget_kind in {stat, stats_overview} to a generic
  StatsWidgetSource (dispatches to the service type's provider), independent of
  service type.
- new /api/jellyseerr/stats router endpoint for the Requests tab (resolves the
  Jellyfin service by id or first-enabled; shares the provider cache).

Tests: provider normalization, not-configured, TTL caching; stat selector +
overview + unknown-stat widget dispatch; 7 new tests. 400/400 backend pass;
ruff clean.
This commit is contained in:
Developer
2026-07-12 13:10:09 +00:00
parent ba01ad7c0c
commit b8cb29e330
18 changed files with 525 additions and 29 deletions
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backend/src/media_library_viewer_api/integrations/.pi-map.md
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@@ -4,21 +4,21 @@ dir: backend/src/media_library_viewer_api/integrations
index: backend/src/media_library_viewer_api/integrations/.pi-map.index.md
## role
Provides pluggable external service integrations (e.g., Alertmanager, Jellyfin, Prometheus, qBittorrent) with standardized configuration, connection testing, and widget definitions for a monitoring dashboard.
Provides pluggable external service integrations with standardized configuration, connection testing, and widget definitions for the media library viewer API.
## files
- __init__.py | Defines a closed registry module for service integrations.
- alertmanager.py | Defines a service integration for Prometheus Alertmanager, providing configuration models, connection testing, alert summarization, and widget definitions for displaying active alerts. | exp: class:AlertmanagerConfig, class:AlertmanagerAlertsWidgetConfig, func:summarize_alerts(alerts: list[dict[str, Any]], severity_filter) → dict[str, Any], call:alert.get, call:labels.get, call:by_severity.get, call:open_alerts.append, call:annotations.get, call:open_alerts.sort, call:len, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str(config.get("base_url") or "").rstrip, call:config.get, call:int, call:secrets.get, call:requests.get, call:resp.raise_for_status, call:resp.json, call:payload.get("versionInfo", {}).get, call:TestResult, call:translate_connection_error | dep: typing, requests, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store
- authentik.py | Defines the Authentik service integration for user-directory access, including connection config, API token secret management, and a connection test. | exp: class:AuthentikConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str(config.get("base_url") or "").rstrip, call:config.get, call:secrets.get, call:float, call:AuthentikClient, call:client.users, call:result.get, call:isinstance, call:TestResult, call:translate_connection_error | dep: typing, media_library_viewer_api.clients.authentik, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store, media_library_viewer_api.clients.authentik.AuthentikClient
- backups.py | Defines a Backups service type with configuration and summary widget for monitoring backup jobs, run history, and alerting. | exp: class:BackupsConfig, class:BackupsSummaryWidgetConfig | dep: media_library_viewer_api.integrations.base
- base.py | Provides base classes and utility functions for defining external service integrations, including config schemas, secrets, widgets, and connection error translation. | exp: class:ServiceConfigBase, class:WidgetConfigBase, class:SecretField, class:WidgetKind, class:TestResult, class:ServiceDefinition, method:widget_kind(self, kind: str) → WidgetKind | None, func:_validate_service_base_url(value: Any) → str, call:isinstance, call:value.strip, call:text.lower, call:lowered.startswith, raise:ValueError, func:widget_kind(kind: str, name: str, description: str, model_cls: type[WidgetConfigBase], default_config, refresh_interval_ms) → WidgetKind, call:model_cls.model_json_schema, call:schema.pop, call:WidgetKind, call:dict, func:validate_config(model_cls: type[BaseModel], config: dict[str, Any] | None) → dict[str, Any], call:model_cls.model_validate, call:instance.model_dump, func:translate_connection_error(exc: Exception, context) → TestResult, call:str, call:message.lower, call:isinstance, call:TestResult | dep: asyncio, dataclasses, typing, requests, pydantic, media_library_viewer_api.services.settings_store
- jellyfin.py | Defines the Jellyfin media server service integration, including connection testing, configuration models, and widget definitions for activity monitoring. | exp: class:JellyfinConfig, class:JellyfinActivityWidgetConfig, class:JellyfinNowPlayingWidgetConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str, call:config.get, call:secrets.get, call:int, call:JellyfinClient, call:client.users, call:TestResult, call:len, call:translate_connection_error | dep: typing, media_library_viewer_api.clients.jellyfin, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store, media_library_viewer_api.clients.jellyfin.JellyfinClient, media_library_viewer_api.services.settings_store.SettingsStore
- jellyfin.py | Defines the Jellyfin service integration including connection config, widget types, and connection testing for a media library viewer API. | exp: class:JellyfinConfig, class:JellyfinActivityWidgetConfig, class:JellyfinNowPlayingWidgetConfig, class:JellyfinRequestStatWidgetConfig, class:JellyfinRequestsOverviewWidgetConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str, call:config.get, call:secrets.get, call:int, call:JellyfinClient, call:client.users, call:TestResult, call:len, call:translate_connection_error | dep: typing, media_library_viewer_api.clients.jellyfin, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store, media_library_viewer_api.clients.jellyfin.JellyfinClient, media_library_viewer_api.services.settings_store.SettingsStore
- nextcloud.py | Defines a Nextcloud service integration with connection testing and configuration for a media library viewer API. | exp: class:NextcloudConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str(config.get("base_url") or "").rstrip, call:config.get, call:requests.get, call:resp.raise_for_status, call:resp.json, call:payload.get, call:TestResult, call:translate_connection_error | dep: typing, requests, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store
- prometheus.py | Defines the Prometheus service integration for a media library viewer API, including connection testing via a Grafana gateway and configuration models for metric, chart, gauge, and mean widgets. | exp: class:PrometheusConfig, class:PrometheusMetricWidgetConfig, class:PrometheusChartWidgetConfig, class:PrometheusGaugeWidgetConfig, class:PrometheusMeanWidgetConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str(config.get("grafana_url") or "").rstrip, call:config.get, call:secrets.get, call:int, call:TestResult, call:requests.post, call:resp.raise_for_status, call:translate_connection_error | dep: typing, requests, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store
- qbittorrent.py | Defines the qBittorrent service integration, including connection config models, secret fields, widget definitions (totals, active, speed), and a connection test function. | exp: class:QbittorrentConfig, class:QbittorrentWidgetConfig, class:QbittorrentSpeedWidgetConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:config.get, call:secrets.get, call:int, call:QbittorrentClient, call:client.maindata, call:data.get("server_state", {}).get, call:TestResult, call:str(exc).lower, call:translate_connection_error | dep: typing, media_library_viewer_api.clients.qbittorrent, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store, media_library_viewer_api.clients.qbittorrent.QbittorrentClient, media_library_viewer_api.services.settings_store.SettingsStore
- registry.py | Maintains a closed registry of service definitions and provides lookup functions to query available services, their types, and widget kinds. | exp: func:list_service_types() → list[str], call:sorted, func:get_service_definition(service_type: str) → ServiceDefinition | None, call:SERVICE_DEFINITIONS.get, func:get_widget_kind(service_type: str, widget_kind: str) → WidgetKind | None, call:get_service_definition, call:definition.widget_kind, func:require_service_definition(service_type: str) → ServiceDefinition, call:get_service_definition, raise:ValueError | dep: media_library_viewer_api.integrations.alertmanager, media_library_viewer_api.integrations.authentik, media_library_viewer_api.integrations.backups, media_library_viewer_api.integrations.base, media_library_viewer_api.integrations.jellyfin, media_library_viewer_api.integrations.nextcloud, media_library_viewer_api.integrations.prometheus, media_library_viewer_api.integrations.qbittorrent, media_library_viewer_api.integrations.ssh_tasks
- ssh_tasks.py | Defines a service plugin that runs reusable saved tasks over SSH by managing connection configuration, secrets, and connection testing. | exp: class:SshTasksConfig, class:SshTaskOutputWidgetConfig, func:test_connection(config: dict[str, Any], secrets: dict[str, str], store: SettingsStore) → TestResult, call:str(config.get("host") or "").strip, call:config.get, call:int, call:ServiceRecord, call:build_ssh_client, call:client.connect, call:str(exc).lower, call:TestResult, call:translate_connection_error, call:client.close | dep: typing, media_library_viewer_api.integrations.base, media_library_viewer_api.services.settings_store, media_library_viewer_api.services.task_runner, media_library_viewer_api.widgets.sources
## arch
Registry-based plugin pattern with abstract base classes defining config schemas, secrets, widgets, and connection tests; each integration is a self-contained module auto-registered in a closed central registry for discovery and lookup.
Plugin/registry pattern with abstract base classes defining contracts for config schemas, secrets, widgets, and connection testing, discovered through a closed central registry.
## tags
config, connection, widget, media_library_viewer_api, service, error, integrations, test
## symbols