feat(client): filter select_recipe by STATION_CODE with error fallback

Replace generic /api/recipes call with api_client.get_station_recipes(STATION_CODE).
Return 503 station_not_configured.html when STATION_CODE env var is unset.
Add station indicator to recipe selection page header.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

client/blueprints/measure.py

@@ -22,8 +22,18 @@ measure_bp = Blueprint("measure", __name__)
 @role_required("MeasurementTec")
 def select_recipe():
     """Recipe selection page with search and barcode support."""
-    # Load recipes from API
-    resp = api_client.get("/api/recipes", params={"per_page": 100})
+    # Fail-fast if STATION_CODE is not configured
+    if not Config.STATION_CODE:
+        return render_template("errors/station_not_configured.html"), 503
+
+    # Load recipes filtered by station
+    try:
+        resp = api_client.get_station_recipes(Config.STATION_CODE)
+    except Exception as e:
+        return render_template(
+            "errors/station_not_configured.html", error=str(e),
+        ), 502
+
     if isinstance(resp, dict) and resp.get("error"):
         flash(
             _("Errore nel caricamento delle ricette: %(detail)s",
@@ -43,6 +53,7 @@ def select_recipe():
     return render_template(
         "measure/select_recipe.html",
         recipes=recipes,
+        station_code=Config.STATION_CODE,
         auto_recipe_code=auto_recipe_code,
         auto_lot=auto_lot,
         auto_serial=auto_serial,

client/templates/errors/station_not_configured.html

@@ -0,0 +1,33 @@
+{% extends "base.html" %}
+{% block title %}{{ _('Stazione non configurata') }} — TieMeasureFlow{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8 max-w-2xl">
+  <div class="mt-20 p-8 bg-[var(--bg-card)] rounded-xl shadow-lg text-center border border-red-200 dark:border-red-800">
+    <div class="inline-flex items-center justify-center w-16 h-16 rounded-full
+                bg-red-50 dark:bg-red-900/30 mb-6">
+      <svg class="w-8 h-8 text-measure-fail" fill="none" stroke="currentColor" stroke-width="1.75" viewBox="0 0 24 24">
+        <path stroke-linecap="round" stroke-linejoin="round"
+              d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z"/>
+      </svg>
+    </div>
+
+    <h1 class="text-2xl font-bold text-measure-fail mb-4">
+      {{ _('Stazione non configurata') }}
+    </h1>
+
+    <p class="mb-4 text-[var(--text-primary)]">
+      {{ _('Questo client non ha impostato la variabile di ambiente STATION_CODE.') }}
+    </p>
+
+    <p class="mb-6 text-sm text-[var(--text-secondary)]">
+      {{ _('Contattare il responsabile IT: il file .env del container deve contenere STATION_CODE con il codice della stazione assegnata.') }}
+    </p>
+
+    {% if error %}
+    <pre class="text-xs text-left text-[var(--text-secondary)] bg-[var(--bg-secondary)]
+                p-3 rounded-lg border border-[var(--border-color)] overflow-auto">{{ error }}</pre>
+    {% endif %}
+  </div>
+</div>
+{% endblock %}

client/templates/measure/select_recipe.html

@@ -75,6 +75,9 @@
           <p class="mt-1 text-sm text-[var(--text-secondary)]">
             {{ _('Scegli la ricetta di misura da eseguire') }}
           </p>
+          <p class="mt-1 text-sm text-steel-500 dark:text-steel-400">
+            {{ _('Stazione') }}: <span class="font-mono font-bold">{{ station_code }}</span>
+          </p>
         </div>
       </div>
 

client/tests/test_measure.py

@@ -8,15 +8,18 @@ import pytest
 class TestSelectRecipe:
     """GET /measure/select tests."""
 
-    def test_select_recipe_renders(self, logged_in_client, mock_api_client):
+    def test_select_recipe_renders(self, logged_in_client, mock_api_client, monkeypatch):
         """Recipe selection page renders for MeasurementTec role."""
-        mock_api_client.get.return_value = {
-            "items": [
-                {"id": 1, "code": "REC-001", "name": "Test Recipe"},
-            ],
-            "total": 1,
-            "pages": 1,
-        }
+        monkeypatch.setenv("STATION_CODE", "ST-TEST")
+        import config
+        import importlib
+        importlib.reload(config)
+        import blueprints.measure
+        importlib.reload(blueprints.measure)
+
+        mock_api_client.get_station_recipes.return_value = [
+            {"id": 1, "code": "REC-001", "name": "Test Recipe"},
+        ]
 
         resp = logged_in_client.get("/measure/select")
         assert resp.status_code == 200

client/tests/test_measure_station_filter.py

@@ -0,0 +1,37 @@
+"""Verify that /measure/select reads STATION_CODE and filters recipes via the server."""
+import importlib
+from unittest.mock import patch, MagicMock
+
+
+def _reload_measure(monkeypatch, station_code=None):
+    """Reload config and measure module under the given STATION_CODE env."""
+    if station_code is None:
+        monkeypatch.delenv("STATION_CODE", raising=False)
+    else:
+        monkeypatch.setenv("STATION_CODE", station_code)
+    import config
+    importlib.reload(config)
+    import blueprints.measure
+    importlib.reload(blueprints.measure)
+
+
+def test_select_recipe_calls_station_endpoint(logged_in_client, monkeypatch):
+    _reload_measure(monkeypatch, station_code="ST-TEST")
+    from blueprints import measure as measure_bp_mod
+    with patch.object(measure_bp_mod, "api_client") as mock_api:
+        mock_api.get_station_recipes.return_value = [
+            {"id": 1, "code": "R1", "name": "Recipe 1", "active": True},
+        ]
+        resp = logged_in_client.get("/measure/select")
+        assert resp.status_code == 200
+        mock_api.get_station_recipes.assert_called_once()
+        args, kwargs = mock_api.get_station_recipes.call_args
+        assert args[0] == "ST-TEST" or kwargs.get("station_code") == "ST-TEST"
+
+
+def test_select_recipe_without_station_code_shows_error(logged_in_client, monkeypatch):
+    _reload_measure(monkeypatch, station_code=None)
+    resp = logged_in_client.get("/measure/select")
+    assert resp.status_code == 503
+    body = resp.data.lower()
+    assert b"station_code" in body or b"stazione" in body