/*
 * InputDriverFactory.cpp
 *
 *  Created on: Jun 14, 2018
 *      Author: Andreas Schneider, Johannes Wendel, Jonas Zeunert, Rafael Vinci, Dr. Franca Rupprecht
 */


#include "InputDriverFactory.h"

#include "utilities/LoggerFactory.hpp"

#include "EventNotifier.h"

using namespace nlohmann;


namespace Input
{

std::shared_ptr<InputDriver> InputDriverFactory::get_InputDriver(std::istream& input_config_stream, std::istream& matrix_config_stream)
{
  ConfigureLogger();

  IBlockingQueue<Event>* event_queue = new BlockingQueue<Event>;

  std::shared_ptr<IEventNotifier> event_notifier = std::make_shared<EventNotifier>(event_queue);

  std::unique_ptr<IInputGPIOInterface> input_gpio_interface = std::make_unique<InputGPIOInterface>(input_config_stream);

  std::unique_ptr<IDetector> detector(std::move(get_detector(matrix_config_stream, std::move(input_gpio_interface), event_notifier)));

  return std::shared_ptr<InputDriver>(new InputDriver(event_notifier, std::move(detector)));
}

std::unique_ptr<IDetector> InputDriverFactory::get_detector(std::istream& matrix_config_stream, std::unique_ptr<IInputGPIOInterface> input_gpio_interface, std::shared_ptr<IEventNotifier> event_notifier)
{
  json matrix_config;
  matrix_config_stream >> matrix_config;

  std::map<char, Event> input_events = create_input_events(matrix_config);

  return std::unique_ptr<Detector>(new Detector(std::move(input_gpio_interface), input_events, event_notifier));
}

std::map<char, Event> InputDriverFactory::create_input_events(json matrix_config)
{
  std::map<char, Event> events;

  for(auto& json_event : matrix_config)
  {

    try
    {
      std::string name = json_event.at("name");
      char address = json_event.at("address").get<json::number_integer_t>();
      int priority = json_event.at("priority").get<json::number_integer_t>();

      Event event(address, priority, name);

      events.emplace(address, event);
    }
    catch(json::exception& e)
    {
      CLOG(ERROR, INPUT_LOGGER) << "Matrix config-file corrupted: " << e.what();
      exit(EXIT_FAILURE);
    }
  }

  return events;
}

void InputDriverFactory::ConfigureLogger()
{
  LoggerFactory::CreateInputLogger();
}


}