feat: add backup dashboard summary endpoint

backend/src/media_library_viewer_api/routers/dashboard.py

@@ -3,13 +3,21 @@
 from __future__ import annotations
 
 import logging
+import time
 from typing import Any
 
 from fastapi import APIRouter, Depends
 
 from media_library_viewer_api.clients.jellyfin import JellyfinClient
-from media_library_viewer_api.dependencies import get_jellyfin_client, get_monitoring_poller, get_settings_store, get_user_id
+from media_library_viewer_api.dependencies import (
+    get_jellyfin_client,
+    get_monitoring_poller,
+    get_settings_store,
+    get_user_id,
+)
+from media_library_viewer_api.models.backups import BackupDashboardSummary
 from media_library_viewer_api.services.monitoring_actions import collect_machine_overview
+from media_library_viewer_api.services.settings_store import SettingsStore
 
 logger = logging.getLogger(__name__)
 
@@ -54,7 +62,10 @@ def get_monitoring_overview(
                 machine.get("id"),
             )
             rows.append({
-                "machine": {k: machine.get(k) for k in ("id", "name", "mode", "enabled", "host", "port", "username", "media_root", "path_prefix", "notes")},
+                "machine": {k: machine.get(k) for k in (
+                    "id", "name", "mode", "enabled", "host", "port", "username",
+                    "media_root", "path_prefix", "notes",
+                )},
                 "status": "",
                 "status_error": str(exc),
                 "metrics_error": str(exc),
@@ -183,3 +194,44 @@ def get_now_playing(
 ) -> list[dict[str, Any]]:
     """Backward-compatible alias; returns full activity rows."""
     return get_activity(client)
+
+
+@router.get("/backups")
+def get_backup_dashboard(
+    store: SettingsStore = Depends(get_settings_store),
+) -> BackupDashboardSummary:
+    jobs = store.list_backup_jobs()
+    total_jobs = len(jobs)
+
+    # Calculate 24h success rate
+    cutoff = int(time.time()) - (24 * 60 * 60)
+    recent_runs = []
+    for job in jobs:
+        runs = store.list_backup_runs(job_id=job["id"], limit=1)
+        if runs and runs[0]["started_at"] >= cutoff:
+            recent_runs.append(runs[0])
+
+    successful = sum(1 for r in recent_runs if r["status"] == "success")
+    success_rate = (successful / len(recent_runs) * 100) if recent_runs else 100.0
+
+    # Active alerts
+    alerts = store.list_backup_alerts(acknowledged=False)
+    active_alerts = len(alerts)
+
+    # Last failed
+    failed_runs = []
+    for job in jobs:
+        runs = store.list_backup_runs(job_id=job["id"], status="failure", limit=1)
+        if runs:
+            failed_runs.append(runs[0])
+
+    last_failed_at = None
+    if failed_runs:
+        last_failed_at = max(r["started_at"] for r in failed_runs)
+
+    return BackupDashboardSummary(
+        total_jobs=total_jobs,
+        success_rate_24h=round(success_rate, 1),
+        active_alerts=active_alerts,
+        last_failed_at=last_failed_at,
+    )

backend/tests/test_backups.py

@@ -7,6 +7,32 @@ from media_library_viewer_api.main import app
 from media_library_viewer_api.services.settings_store import SettingsStore
 
 
+def test_dashboard_backups():
+    with tempfile.TemporaryDirectory() as tmpdir:
+        db_path = Path(tmpdir) / "test_settings.sqlite"
+        store = SettingsStore(db_path)
+        store.init_schema()
+
+        # Monkey-patch the global store for this test
+        import media_library_viewer_api.auth as auth_module
+        from media_library_viewer_api.services import settings_store
+
+        original_store = settings_store._store
+        settings_store._store = store
+        auth_module._API_KEY = None
+
+        try:
+            client = TestClient(app)
+            response = client.get("/api/dashboard/backups")
+            assert response.status_code == 200
+            data = response.json()
+            assert "total_jobs" in data
+            assert "success_rate_24h" in data
+        finally:
+            settings_store._store = original_store
+            auth_module._API_KEY = None
+
+
 def test_post_backup_report():
     with tempfile.TemporaryDirectory() as tmpdir:
         db_path = Path(tmpdir) / "test_settings.sqlite"