/*
 * InputDriverFactory.cpp
 *
 *  Created on: Jun 14, 2018
 *      Author: Andreas Schneider, Johannes Wendel, Jonas Zeunert
 */


#include "InputDriverFactory.h"

#include "utility/config.h"

#include "utility/LoggerFactory.h"

#include "InputDriver.h"
#include "EventNotifier.h"

using namespace nlohmann;
using namespace flippR_driver::utility;

namespace flippR_driver
{
namespace input
{
std::shared_ptr<IInputDriver> InputDriverFactory::get_InputDriver(std::istream &input_config_stream, std::istream &matrix_config_stream)
{
  LoggerFactory::CreateInputLogger();

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

  json matrix_config;
  matrix_config_stream >> matrix_config;

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

  std::vector<std::shared_ptr<DistributingEvent>> events;
  std::map<std::string, std::shared_ptr<Event>> name_event_map;

  create_input_events(matrix_config, events, name_event_map, event_notifier);

  std::unique_ptr<IInputGPIOInterface> input_gpio_interface(new InputGPIOInterface(input_config_stream));
  std::unique_ptr<IDetector> detector(
           new Detector(std::move(input_gpio_interface), events));

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


void InputDriverFactory::create_input_events(json matrix_config, std::vector<std::shared_ptr<DistributingEvent>>& events,
                                          std::map<std::string, std::shared_ptr<Event>>& name_event_map,
                                          std::shared_ptr<IEventNotifier> event_notifier)
{
  int global_bounce_time = matrix_config.at("global_bounce_time").get<json::number_integer_t>();
  auto& event_array = matrix_config.at("input_matrix");
  for (auto &json_event : event_array)
  {
    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>();
      int bounce_time = global_bounce_time;

      auto it_bounce_time = json_event.find("bounce_time");
      if (it_bounce_time != json_event.end())
      {
        bounce_time = it_bounce_time->get<json::number_integer_t>();
      }

      std::shared_ptr<DistributingEvent> event_ptr(new DistributingEvent(address, priority, name,
                                       std::chrono::milliseconds(bounce_time), event_notifier));

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

}
}