#include <fuzzer/FuzzedDataProvider.h>

#include "behaviortree_cpp/scripting/script_parser.hpp"

#include "behaviortree_cpp/blackboard.h"

#include "behaviortree_cpp/basic_types.h"

#include <cstdint>

#include <string>

#include <iostream>

#include <iomanip>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)

{

  if(size < 4)

  {

    return 0;

  }

  FuzzedDataProvider fuzz_data(data, size);

  try

  {

    BT::Ast::Environment env;

    env.vars = BT::Blackboard::create();

    env.enums = std::make_shared<BT::EnumsTable>();

    // Add some test variables to the blackboard

    env.vars->set("test_int", 42);

    env.vars->set("test_double", 3.14);

    env.vars->set("test_bool", true);

    env.vars->set("test_string", std::string("test"));

    // Add some test enums

    (*env.enums)["RUNNING"] = 0;

    (*env.enums)["SUCCESS"] = 1;

    (*env.enums)["FAILURE"] = 2;

    std::string script = fuzz_data.ConsumeRandomLengthString();

    auto validation_result = BT::ValidateScript(script);

    if(!validation_result)

    {

      auto parsed_script = BT::ParseScript(script);

      if(parsed_script)

      {

        try

        {

          auto result = parsed_script.value()(env);

          if(result.isNumber())

          {

            volatile auto num = result.cast<double>();

          }

          env.vars->set("result", result);

          BT::Any read_back;

          env.vars->get("result", read_back);

        }

        catch(const BT::RuntimeError&)

        {}

      }

    }

    BT::ParseScriptAndExecute(env, script);

  }

  catch(const std::exception&)

  {}

  return 0;

}