fix(measure): riepilogo fine task filtrato per lotto/seriale/operatore, pagina oltre 500 (#30)

task_complete(): GET /api/measurements ora porta lot_number/serial_number
(sessione) + measured_by (utente corrente), invece del solo version_id -
una seconda produzione sulla stessa versione non pesca più le misure di
altre stazioni/giorni. Risposte oltre 500 misure vengono cicliche per
pagina invece di troncate al primo per_page=500.
production_run_id sarebbe il filtro più preciso ma GET /api/measurements
non lo accetta (lotto A3) e task_execute.html non lo passa in query
(lotto B1): MANCA, annotato nel codice.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/frontend/flask_app/blueprints/measure.py

@@ -354,6 +354,8 @@ def task_complete(recipe_id: int):
     """Task completion summary with all measurements."""
     # Retrieve version_id from query params
     version_id = request.args.get("version_id")
+    lot_number = session.get("lot_number", "")
+    serial_number = session.get("serial_number", "")
 
     # Load recipe for context
     recipe_resp = api_client.get(f"/api/recipes/{recipe_id}")
@@ -382,30 +384,52 @@ def task_complete(recipe_id: int):
     # Load measurements if version_id provided
     measurements = []
     if version_id:
-        meas_resp = api_client.get(
-            "/api/measurements",
-            params={"version_id": version_id, "per_page": 500},
-        )
-        if not (isinstance(meas_resp, dict) and meas_resp.get("error")):
-            raw = (
+        # Scoped to this measurement session, not the whole version (#30): a
+        # second production run on the same recipe version used to pull in
+        # every other station's/day's readings too. GET /api/measurements has
+        # no production_run_id filter yet (that's lotto A3), so lot/serial +
+        # the current operator is the closest available identity - MANCA:
+        # once the backend accepts production_run_id, prefer it when the
+        # active run is known (see _current_run_id()).
+        params = {"version_id": version_id, "per_page": 500}
+        if lot_number:
+            params["lot_number"] = lot_number
+        if serial_number:
+            params["serial_number"] = serial_number
+        user_id = session.get("user_id")
+        if user_id:
+            params["measured_by"] = user_id
+
+        raw = []
+        page = 1
+        while True:
+            meas_resp = api_client.get(
+                "/api/measurements", params={**params, "page": page},
+            )
+            if isinstance(meas_resp, dict) and meas_resp.get("error"):
+                break
+            page_items = (
                 meas_resp if isinstance(meas_resp, list)
                 else meas_resp.get("items", [])
             )
-            # Enrich each measurement with nested subtask data
-            for m in raw:
-                st = subtask_map.get(m.get("subtask_id"), {})
-                m["subtask"] = st
-                m["task_info"] = subtask_task_map.get(m.get("subtask_id"), {})
-                # Compute deviation if not present
-                if m.get("deviation") is None and st.get("nominal") is not None:
-                    try:
-                        m["deviation"] = m["value"] - st["nominal"]
-                    except (TypeError, KeyError):
-                        m["deviation"] = 0.0
-            measurements = raw
+            raw.extend(page_items)
+            total_pages = meas_resp.get("pages", 1) if isinstance(meas_resp, dict) else 1
+            if page >= total_pages or not page_items:
+                break
+            page += 1
 
-    lot_number = session.get("lot_number", "")
-    serial_number = session.get("serial_number", "")
+        # Enrich each measurement with nested subtask data
+        for m in raw:
+            st = subtask_map.get(m.get("subtask_id"), {})
+            m["subtask"] = st
+            m["task_info"] = subtask_task_map.get(m.get("subtask_id"), {})
+            # Compute deviation if not present
+            if m.get("deviation") is None and st.get("nominal") is not None:
+                try:
+                    m["deviation"] = m["value"] - st["nominal"]
+                except (TypeError, KeyError):
+                    m["deviation"] = 0.0
+        measurements = raw
 
     return render_template(
         "measure/task_complete.html",

src/frontend/flask_app/tests/test_measure.py

@@ -264,6 +264,77 @@ class TestTaskComplete:
         assert resp.status_code == 200
         assert b"productionClock(" in resp.data
 
+    def test_measurements_filtered_by_lot_serial_and_operator(
+        self, logged_in_client, mock_api_client,
+    ):
+        """#30: a second production on the same version must not pull in every
+        other station's/day's readings - only this lot/serial and operator."""
+        with logged_in_client.session_transaction() as sess:
+            sess["lot_number"] = "L1"
+            sess["serial_number"] = "S1"
+
+        mock_api_client.get.side_effect = [
+            {"id": 1, "code": "REC-001", "name": "Test Recipe", "version": 1},
+            [{"id": 1, "title": "Task 1", "order_index": 0, "subtasks": []}],
+            {"items": [], "pages": 1},
+        ]
+
+        resp = logged_in_client.get("/measure/complete/1?version_id=5")
+        assert resp.status_code == 200
+
+        endpoint, kwargs = mock_api_client.get.call_args_list[2]
+        assert endpoint[0] == "/api/measurements"
+        params = kwargs["params"]
+        assert params["version_id"] == "5"
+        assert params["lot_number"] == "L1"
+        assert params["serial_number"] == "S1"
+        assert params["measured_by"] == 1  # session["user_id"] from the fixture
+
+    def test_measurements_without_lot_or_serial_still_scope_to_the_operator(
+        self, logged_in_client, mock_api_client,
+    ):
+        """No lot/serial in session (recipe does not require them): the
+        operator filter alone still narrows the summary to this run."""
+        mock_api_client.get.side_effect = [
+            {"id": 1, "code": "REC-001", "name": "Test Recipe", "version": 1},
+            [{"id": 1, "title": "Task 1", "order_index": 0, "subtasks": []}],
+            {"items": [], "pages": 1},
+        ]
+
+        resp = logged_in_client.get("/measure/complete/1?version_id=5")
+        assert resp.status_code == 200
+
+        endpoint, kwargs = mock_api_client.get.call_args_list[2]
+        params = kwargs["params"]
+        assert "lot_number" not in params
+        assert "serial_number" not in params
+        assert params["measured_by"] == 1
+
+    def test_measurements_beyond_500_are_paged_not_truncated(
+        self, logged_in_client, mock_api_client,
+    ):
+        """#30: a cycle over pages instead of a single capped per_page=500 call."""
+        subtask = {"id": 1, "nominal": 5.0, "unit": "mm"}
+        page1 = {
+            "items": [{"id": i, "subtask_id": 1, "value": 5.0} for i in range(500)],
+            "pages": 2,
+        }
+        page2 = {"items": [{"id": 500, "subtask_id": 1, "value": 5.0}], "pages": 2}
+        mock_api_client.get.side_effect = [
+            {"id": 1, "code": "REC-001", "name": "Test Recipe", "version": 1},
+            [{"id": 1, "title": "Task 1", "order_index": 0, "subtasks": [subtask]}],
+            page1,
+            page2,
+        ]
+
+        resp = logged_in_client.get("/measure/complete/1?version_id=5")
+        assert resp.status_code == 200
+        assert mock_api_client.get.call_count == 4
+        first_page_call = mock_api_client.get.call_args_list[2]
+        second_page_call = mock_api_client.get.call_args_list[3]
+        assert first_page_call.kwargs["params"]["page"] == 1
+        assert second_page_call.kwargs["params"]["page"] == 2
+
 
 class TestOutOfTolerance:
     """Proxies for point 5: the capoturno's answer has to reach the measurement."""