// WebSocket handler for real-time shopping list sync
// Used when household has pro/family plan with realtimeSync feature

export type WSMessage =
  | { type: "item_added"; payload: { listId: string; itemId: string } }
  | { type: "item_checked"; payload: { listId: string; itemId: string; isChecked: boolean } }
  | { type: "item_removed"; payload: { listId: string; itemId: string } };

// TODO: Implement WebSocket handler using Hono's websocket upgrade
// This will be used with Hono's upgradeWebSocket when available in Bun
export function createShoppingListWSHandler() {
  // Placeholder for WebSocket implementation
  return {
    onOpen: (_ws: unknown) => {
      console.log("Shopping list WebSocket connected");
    },
    onMessage: (_ws: unknown, _message: WSMessage) => {
      // Broadcast to all connected clients in the same household
    },
    onClose: (_ws: unknown) => {
      console.log("Shopping list WebSocket disconnected");
    },
  };
}
