Require complete landing network stories

src/schema.ts

@@ -354,6 +354,14 @@ async function resolveLandingNetworkStory(focusKind: LandingNetworkKind, itemLim
           LIMIT 1
           RETURN 1
       ) > 0
+      FILTER LENGTH(
+        FOR hub IN nodes
+          FILTER hub.node_type == 'logistics' OR hub.node_type == null
+          FILTER hub.product_uuid == null
+          FILTER hub.latitude != null AND hub.longitude != null
+          LIMIT 1
+          RETURN 1
+      ) > 0
       SORT RAND()
       LIMIT 1
       RETURN supplier
@@ -384,7 +392,10 @@ async function resolveLandingNetworkStory(focusKind: LandingNetworkKind, itemLim
         LIMIT @limit
         RETURN MERGE(hub, {distance_km: dist})
     `, { lat: focus.latitude, lon: focus.longitude, limit })
-    const hubs = await hubsCursor.all()
+    const hubs = await hubsCursor.all() as ArangoDoc[]
+    if (offers.length === 0 || hubs.length === 0) {
+      throw new Error('No complete supplier story with offers and nearby hubs is available')
+    }
     return {
       focus: mapLandingNetworkPoint(focus, 'SUPPLIER'),
       offers: offers.map(mapLandingNetworkOffer),
@@ -434,12 +445,17 @@ async function resolveLandingNetworkStory(focusKind: LandingNetworkKind, itemLim
   `, { lat: focus.latitude, lon: focus.longitude, offer_limit: limit * 4 })
   const offers = await offersCursor.all() as ArangoDoc[]
   const visibleOffers = offers.slice(0, limit)
+  const products = landingProductsFromOffers(visibleOffers, limit)
+  const suppliers = landingSuppliersFromOffers(visibleOffers, limit)
+  if (visibleOffers.length === 0 || products.length === 0 || suppliers.length === 0) {
+    throw new Error('No complete hub story with nearby products and suppliers is available')
+  }
   return {
     focus: mapLandingNetworkPoint(focus, 'HUB'),
     offers: visibleOffers.map(mapLandingNetworkOffer),
     hubs: [],
-    products: landingProductsFromOffers(visibleOffers, limit),
-    suppliers: landingSuppliersFromOffers(visibleOffers, limit),
+    products,
+    suppliers,
   }
 }