/*
 * Author:          Patrick-Christopher Mattulat
 * Company:         Lynar Studios
 * E-Mail:          webmaster@lynarstudios.com
 * Created:         2020-09-17
 * Changed:         2020-10-29
 *
 * */

#include "SerializableJSONStateMachine.hpp"
#include "SerializableJSONState.hpp"

ls_std::SerializableJSONStateMachine::SerializableJSONStateMachine(std::shared_ptr<StateMachine> _value) :
Class("SerializableJSONStateMachine"),
value(std::move(_value))
{}

ls_std::byte_field ls_std::SerializableJSONStateMachine::marshal()
{
  this->_update();
  return this->jsonObject.dump();
}

void ls_std::SerializableJSONStateMachine::unmarshal(const ls_std::byte_field &_data)
{
  this->jsonObject = nlohmann::json::parse(_data);

  this->_unmarshalStates();
  this->_unmarshalCurrentState();
  this->value->setMemory(this->jsonObject["memory"]);
  this->value->setName(this->jsonObject["name"]);
}

void ls_std::SerializableJSONStateMachine::_unmarshalCurrentState()
{
  if(this->jsonObject.contains("currentState")) {
    this->value->setStartState(this->jsonObject["currentState"]);
  }
}

void ls_std::SerializableJSONStateMachine::_unmarshalStates()
{
  for(const auto& serializedState : this->jsonObject["states"]) {
    std::shared_ptr<ls_std::State> state = std::make_shared<ls_std::State>("");
    ls_std::SerializableJSONState{state}.unmarshal(serializedState.dump());
    this->value->addState(state);
  }
}

void ls_std::SerializableJSONStateMachine::_update()
{
  this->_updateCurrentState();
  this->jsonObject["memory"] = this->value->getMemory();
  this->jsonObject["name"] = this->value->getName();
  this->_updateStates();
}

void ls_std::SerializableJSONStateMachine::_updateCurrentState()
{
  if(this->value->getCurrentState() != nullptr) {
    this->jsonObject["currentState"] = this->value->getCurrentState()->getId();
  }
}

void ls_std::SerializableJSONStateMachine::_updateStates()
{
  std::string jsonString {};

  for(const auto& state : this->value->getStates()) {
    jsonString = ls_std::SerializableJSONState{state.second}.marshal();
    this->jsonObject["states"][state.first] = nlohmann::json::parse(jsonString);
  }
}