Add hubsList, suppliersList, productsList resolvers and update nearestOffers

- Add hubsList resolver for paginated hub list
- Add suppliersList resolver for paginated supplier list
- Add productsList resolver for paginated product list
- Update nearestOffers to support hubUuid parameter with route calculation
- Add OfferWithRouteType for offers with embedded routes
- Add supplier_name to OfferNodeType

geo_app/schema.py

@@ -130,6 +130,7 @@ class OfferNodeType(graphene.ObjectType):
     product_uuid = graphene.String()
     product_name = graphene.String()
     supplier_uuid = graphene.String()
+    supplier_name = graphene.String()
     latitude = graphene.Float()
     longitude = graphene.Float()
     country = graphene.String()
@@ -141,6 +142,25 @@ class OfferNodeType(graphene.ObjectType):
     distance_km = graphene.Float()
 
 
+class OfferWithRouteType(graphene.ObjectType):
+    """Offer with route information to destination."""
+    uuid = graphene.String()
+    product_uuid = graphene.String()
+    product_name = graphene.String()
+    supplier_uuid = graphene.String()
+    supplier_name = graphene.String()
+    latitude = graphene.Float()
+    longitude = graphene.Float()
+    country = graphene.String()
+    country_code = graphene.String()
+    price_per_unit = graphene.String()
+    currency = graphene.String()
+    quantity = graphene.String()
+    unit = graphene.String()
+    distance_km = graphene.Float()
+    routes = graphene.List(lambda: RoutePathType)
+
+
 class Query(graphene.ObjectType):
     """Root query."""
     MAX_EXPANSIONS = 20000
@@ -310,13 +330,14 @@ class Query(graphene.ObjectType):
     )
 
     nearest_offers = graphene.List(
-        OfferNodeType,
+        OfferWithRouteType,
         lat=graphene.Float(required=True, description="Latitude"),
         lon=graphene.Float(required=True, description="Longitude"),
         radius=graphene.Float(default_value=500, description="Search radius in km"),
         product_uuid=graphene.String(description="Filter by product UUID"),
+        hub_uuid=graphene.String(description="Hub UUID - if provided, calculates routes to this hub"),
         limit=graphene.Int(default_value=50, description="Max results"),
-        description="Find nearest offers to coordinates (optionally filtered by product)",
+        description="Find nearest offers to coordinates with optional routes to hub",
     )
 
     nearest_suppliers = graphene.List(
@@ -337,6 +358,31 @@ class Query(graphene.ObjectType):
         description="Get route from offer to target coordinates (finds nearest hub to coordinate)",
     )
 
+    # New unified list endpoints
+    hubs_list = graphene.List(
+        NodeType,
+        limit=graphene.Int(default_value=50, description="Max results"),
+        offset=graphene.Int(default_value=0, description="Offset for pagination"),
+        country=graphene.String(description="Filter by country name"),
+        transport_type=graphene.String(description="Filter by transport type"),
+        description="Get paginated list of logistics hubs",
+    )
+
+    suppliers_list = graphene.List(
+        SupplierType,
+        limit=graphene.Int(default_value=50, description="Max results"),
+        offset=graphene.Int(default_value=0, description="Offset for pagination"),
+        country=graphene.String(description="Filter by country name"),
+        description="Get paginated list of suppliers from graph",
+    )
+
+    products_list = graphene.List(
+        ProductType,
+        limit=graphene.Int(default_value=50, description="Max results"),
+        offset=graphene.Int(default_value=0, description="Offset for pagination"),
+        description="Get paginated list of products from graph",
+    )
+
     @staticmethod
     def _build_routes(db, from_uuid, to_uuid, limit):
         """Shared helper to compute K shortest routes between two nodes."""
@@ -1469,9 +1515,10 @@ class Query(graphene.ObjectType):
             logger.error("Error finding nearest hubs: %s", e)
             return []
 
-    def resolve_nearest_offers(self, info, lat, lon, radius=500, product_uuid=None, limit=50):
-        """Find nearest offers to coordinates, optionally filtered by product."""
+    def resolve_nearest_offers(self, info, lat, lon, radius=500, product_uuid=None, hub_uuid=None, limit=50):
+        """Find nearest offers to coordinates, optionally filtered by product. If hub_uuid provided, calculates routes."""
         db = get_db()
+        ensure_graph()
 
         aql = """
         FOR offer IN nodes
@@ -1497,13 +1544,33 @@ class Query(graphene.ObjectType):
 
         try:
             cursor = db.aql.execute(aql, bind_vars=bind_vars)
+            offer_nodes = list(cursor)
+            logger.info("Found %d offers near (%.3f, %.3f) within %d km", len(offer_nodes), lat, lon, radius)
+
+            # If hub_uuid provided, calculate routes for each offer
+            if hub_uuid:
+                nodes_col = db.collection('nodes')
+                hub = nodes_col.get(hub_uuid)
+                if not hub:
+                    logger.warning("Hub %s not found for route calculation", hub_uuid)
+                    hub_uuid = None
+
             offers = []
-            for node in cursor:
-                offers.append(OfferNodeType(
+            for node in offer_nodes:
+                routes = []
+
+                # Calculate route to hub if hub_uuid provided
+                if hub_uuid:
+                    route_result = self.resolve_offer_to_hub(info, node['_key'], hub_uuid)
+                    if route_result and route_result.routes:
+                        routes = route_result.routes
+
+                offers.append(OfferWithRouteType(
                     uuid=node['_key'],
                     product_uuid=node.get('product_uuid'),
                     product_name=node.get('product_name'),
                     supplier_uuid=node.get('supplier_uuid'),
+                    supplier_name=node.get('supplier_name'),
                     latitude=node.get('latitude'),
                     longitude=node.get('longitude'),
                     country=node.get('country'),
@@ -1513,8 +1580,9 @@ class Query(graphene.ObjectType):
                     quantity=node.get('quantity'),
                     unit=node.get('unit'),
                     distance_km=node.get('distance_km'),
+                    routes=routes,
                 ))
-            logger.info("Found %d offers near (%.3f, %.3f) within %d km", len(offers), lat, lon, radius)
+
             return offers
         except Exception as e:
             logger.error("Error finding nearest offers: %s", e)
@@ -1614,6 +1682,114 @@ class Query(graphene.ObjectType):
             logger.error("Error finding route to coordinates: %s", e)
             return None
 
+    def resolve_hubs_list(self, info, limit=50, offset=0, country=None, transport_type=None):
+        """Get paginated list of logistics hubs."""
+        db = get_db()
+
+        aql = """
+        FOR node IN nodes
+            FILTER node.node_type == 'logistics' OR node.node_type == null
+            FILTER node.product_uuid == null
+            LET types = node.transport_types != null ? node.transport_types : []
+            FILTER @transport_type == null OR @transport_type IN types
+            FILTER @country == null OR node.country == @country
+            SORT node.name ASC
+            LIMIT @offset, @limit
+            RETURN node
+        """
+
+        try:
+            cursor = db.aql.execute(aql, bind_vars={
+                'transport_type': transport_type,
+                'country': country,
+                'offset': offset,
+                'limit': limit,
+            })
+
+            hubs = []
+            for node in cursor:
+                hubs.append(NodeType(
+                    uuid=node['_key'],
+                    name=node.get('name'),
+                    latitude=node.get('latitude'),
+                    longitude=node.get('longitude'),
+                    country=node.get('country'),
+                    country_code=node.get('country_code'),
+                    synced_at=node.get('synced_at'),
+                    transport_types=node.get('transport_types') or [],
+                    edges=[],
+                ))
+            logger.info("Returning %d hubs (offset=%d, limit=%d)", len(hubs), offset, limit)
+            return hubs
+        except Exception as e:
+            logger.error("Error getting hubs list: %s", e)
+            return []
+
+    def resolve_suppliers_list(self, info, limit=50, offset=0, country=None):
+        """Get paginated list of suppliers from graph."""
+        db = get_db()
+
+        aql = """
+        FOR node IN nodes
+            FILTER node.node_type == 'supplier'
+            FILTER @country == null OR node.country == @country
+            SORT node.name ASC
+            LIMIT @offset, @limit
+            RETURN node
+        """
+
+        try:
+            cursor = db.aql.execute(aql, bind_vars={
+                'country': country,
+                'offset': offset,
+                'limit': limit,
+            })
+
+            suppliers = []
+            for node in cursor:
+                suppliers.append(SupplierType(
+                    uuid=node['_key'],
+                    name=node.get('name'),
+                    latitude=node.get('latitude'),
+                    longitude=node.get('longitude'),
+                ))
+            logger.info("Returning %d suppliers (offset=%d, limit=%d)", len(suppliers), offset, limit)
+            return suppliers
+        except Exception as e:
+            logger.error("Error getting suppliers list: %s", e)
+            return []
+
+    def resolve_products_list(self, info, limit=50, offset=0):
+        """Get paginated list of products from graph."""
+        db = get_db()
+
+        aql = """
+        FOR node IN nodes
+            FILTER node.node_type == 'offer'
+            FILTER node.product_uuid != null
+            COLLECT product_uuid = node.product_uuid INTO offers
+            LET first_offer = FIRST(offers).node
+            SORT first_offer.product_name ASC
+            LIMIT @offset, @limit
+            RETURN {
+                uuid: product_uuid,
+                name: first_offer.product_name
+            }
+        """
+
+        try:
+            cursor = db.aql.execute(aql, bind_vars={
+                'offset': offset,
+                'limit': limit,
+            })
+
+            products = [ProductType(uuid=p['uuid'], name=p.get('name')) for p in cursor]
+            logger.info("Returning %d products (offset=%d, limit=%d)", len(products), offset, limit)
+            return products
+        except Exception as e:
+            logger.error("Error getting products list: %s", e)
+            return []
+
 
 schema = graphene.Schema(query=Query)