//+------------------------------------------------------------------+
//|                                                     IState.mqh   |
//|                                  Copyright 2025, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"

#include <JSON.mqh>   // Your provided JSON class

//+------------------------------------------------------------------+
//| Abstract state interface                                         |
//+------------------------------------------------------------------+
class IState
{
public:
   virtual ~IState() {}

   // Save the object's state into a JSON object.
   // Returns NULL if serialisation fails.
   virtual JSON::Object* Save() = 0;

   // Load the object's state from a JSON object.
   // Returns true on success.
   virtual bool Load(const JSON::Object* json) = 0;
};
//+------------------------------------------------------------------+