feat: rename segments + create routes from an activity (detail page & dashboard recent activities)

backend/app/api/segments.py

@@ -22,6 +22,10 @@ class SegmentCreate(BaseModel):
     end_distance_m: float
 
 
+class SegmentUpdate(BaseModel):
+    name: Optional[str] = None
+
+
 class EffortOut(BaseModel):
     activity_id: int
     activity_name: str
@@ -203,6 +207,29 @@ async def get_segment(
     )
 
 
+@router.patch("/{segment_id}", response_model=SegmentOut)
+async def update_segment(
+    segment_id: int,
+    body: SegmentUpdate,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    seg = await _own_segment(segment_id, current_user.id, db)
+    if body.name is not None and body.name.strip():
+        seg.name = body.name.strip()
+    await db.commit()
+    await db.refresh(seg)
+    agg = (await db.execute(
+        select(func.count(SegmentEffort.id), func.min(SegmentEffort.duration_s))
+        .where(SegmentEffort.segment_id == seg.id)
+    )).one()
+    return SegmentOut(
+        id=seg.id, name=seg.name, sport_type=seg.sport_type, polyline=seg.polyline,
+        distance_m=seg.distance_m, created_from_activity_id=seg.created_from_activity_id,
+        effort_count=agg[0] or 0, best_s=agg[1],
+    )
+
+
 @router.delete("/{segment_id}", status_code=204)
 async def delete_segment(
     segment_id: int,