Add private Jellystat viewing stats to Magent beta

backend/app/routers/insights.py

@@ -0,0 +1,34 @@
+from typing import Annotated
+
+from fastapi import APIRouter, Depends, HTTPException, Query, Response
+from pydantic import BaseModel, ConfigDict, field_validator
+
+from ..auth import get_current_user
+from ..clients.jellystat import HistoryLimitError, JellystatError
+from ..services.insights import get_insights
+
+router = APIRouter(prefix="/insights", tags=["insights"])
+
+
+class InsightsQuery(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+    days: int = 30
+
+    @field_validator("days")
+    @classmethod
+    def supported_period(cls, value: int) -> int:
+        if value not in {7, 30, 90, 365}:
+            raise ValueError("Choose 7, 30, 90 or 365 days")
+        return value
+
+
+@router.get("")
+async def dashboard(query: Annotated[InsightsQuery, Query()], response: Response,
+                    user: dict = Depends(get_current_user)) -> dict:
+    response.headers["Cache-Control"] = "no-store"
+    try:
+        return await get_insights(user, query.days)
+    except HistoryLimitError as exc:
+        raise HTTPException(status_code=422, detail="There is too much history for this period. Choose a shorter period.") from exc
+    except JellystatError as exc:
+        raise HTTPException(status_code=502, detail="Your viewing stats are temporarily unavailable. Please try again shortly.") from exc