/**
  * Telegrams toJSON
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Norbert Thoden, NLE, 2020-06-29
  */

#include "tgt_telegrams.h"

#include <QJsonDocument>
#include <QJsonObject>

namespace TargetManagement
{
//
// Helpers
//
JsonException::JsonException(const QJsonObject &obj, const QString &key)
  : m_obj(obj)
  , m_key(key)
  , m_what("Could not find key '" + key.toUtf8() + "' in json ('" + QJsonDocument(obj).toJson(QJsonDocument::Compact) + "')")
{}

template <typename E>
QJsonValue enumToJson(E e)
{
  static_assert(std::is_enum<E>::value, "Only useable with enumerations");
  return static_cast<int>(e);
}

template <typename T>
bool get(const QJsonObject &obj, const QString &key, T &val, bool bOptional = false)
{
  if (bOptional)
  {
    try
    {
      val = T::fromJson(obj[key].toObject());
    }
    catch (const JsonException &e)
    {
      Q_UNUSED(e);
      return false;
    }
  }
  else
    val = T::fromJson(obj[key].toObject());
  return true;
}

// POD getter
template <>
bool get(const QJsonObject &obj, const QString &key, bool &val, bool bOptional)
{
  const auto jVal = obj[key];
  if (!jVal.isBool())
  {
    if (bOptional)
      return false;
    throw JsonException(obj, key);
  }
  val = jVal.toBool();
  return true;
}

template <>
bool get(const QJsonObject &obj, const QString &key, int &val, bool bOptional)
{
  const auto jVal = obj[key];
  if (!jVal.isDouble())         // ToDo: Check
  {
    if (bOptional)
      return false;
    throw JsonException(obj, key);
  }
  val = jVal.toInt();
  return true;
}

template <>
bool get(const QJsonObject &obj, const QString &key, double &val, bool bOptional)
{
  const auto jVal = obj[key];
  if (!jVal.isDouble())
  {
    if (bOptional)
      return false;
    throw JsonException(obj, key);
  }
  val = jVal.toDouble();
  return true;
}

template <>
bool get(const QJsonObject &obj, const QString &key, QString &val, bool bOptional)
{
  const auto jVal = obj[key];
  if (!jVal.isString())
  {
    if (bOptional)
      return false;
    throw JsonException(obj, key);
  }
  val = jVal.toString();
  return true;
}


//
// enum getter
//
// Effect
template <>
bool get(const QJsonObject &obj, const QString &key, Effect &val, bool bOptional)
{
  int iVal;
  get(obj, key, iVal, bOptional);
  switch (static_cast<Effect_def::type>(iVal))
  {
  case Effect_def::NearMiss:
  case Effect_def::MobilityKill:
  case Effect_def::WeaponKill:
    val = Effect( static_cast<Effect_def::type>(iVal) );
    return true;
  }
  throw JsonException(obj, key);
}



//
// Structs
//
// ------------------------------------------------------------------
//
// GeoPosition2D
//
QJsonObject GeoPosition2D::toJson() const
{
  return QJsonObject({{QStringLiteral("lat"), lat},
                      {QStringLiteral("lon"), lon},
                     });
}

GeoPosition2D GeoPosition2D::fromJson(const QJsonObject &obj)
{
  GeoPosition2D ret;
  get(obj, QStringLiteral("lat"), ret.lat);
  get(obj, QStringLiteral("lon"), ret.lon);
  return ret;
}


//
// ShootbackTargetData
//
QJsonObject ShootbackTargetData::toJson() const
{
  return QJsonObject({{QStringLiteral("id"), id},
                      {QStringLiteral("targetDataId"), targetDataId},
                      {QStringLiteral("name"), name},
                      {QStringLiteral("targetParticipantEquipmentNumber"), targetParticipantEquipmentNumber},
                      {QStringLiteral("activateLaserDesignation"), activateLaserDesignation},
                      {QStringLiteral("activateLights"), activateLights},
                      {QStringLiteral("activatePopupAutomatic"), activatePopupAutomatic},
                      {QStringLiteral("hitsToKill"), hitsToKill},
                      {QStringLiteral("permanentInstalledTarget"), permanentInstalledTarget},
                     });
}

ShootbackTargetData ShootbackTargetData::fromJson(const QJsonObject &obj)
{
  ShootbackTargetData ret;
  get(obj, QStringLiteral("id"), ret.id);
  get(obj, QStringLiteral("targetDataId"), ret.targetDataId);
  get(obj, QStringLiteral("name"), ret.name);
  get(obj, QStringLiteral("targetParticipantEquipmentNumber"), ret.targetParticipantEquipmentNumber);
  get(obj, QStringLiteral("activateLaserDesignation"), ret.activateLaserDesignation);
  get(obj, QStringLiteral("activateLights"), ret.activateLights);
  get(obj, QStringLiteral("activatePopupAutomatic"), ret.activatePopupAutomatic);
  get(obj, QStringLiteral("hitsToKill"), ret.hitsToKill);
  get(obj, QStringLiteral("permanentInstalledTarget"), ret.permanentInstalledTarget);
  return ret;
}


//
// ShootbackAreaData
//
QJsonObject ShootbackAreaData::toJson() const
{
  return QJsonObject({{QStringLiteral("id"), id},
                      {QStringLiteral("name"), name},
                      {QStringLiteral("position"), position.toJson()},
                      {QStringLiteral("width"), width},
                      {QStringLiteral("height"), height},
                     });
}

ShootbackAreaData ShootbackAreaData::fromJson(const QJsonObject &obj)
{
  ShootbackAreaData ret;
  get(obj, QStringLiteral("id"), ret.id);
  get(obj, QStringLiteral("name"), ret.name);
  get(obj, QStringLiteral("position"), ret.position);
  get(obj, QStringLiteral("width"), ret.width);
  get(obj, QStringLiteral("height"), ret.height);
  return ret;
}

//
// ShootbackConfigurationData
//
QJsonObject ShootbackConfigurationData::toJson() const
{
  return QJsonObject({{QStringLiteral("interval1"), interval1},
                      {QStringLiteral("flash1"), flash1},
                      {QStringLiteral("effect1"), enumToJson(effect1.underlying())},
                      {QStringLiteral("interval2"), interval2},
                      {QStringLiteral("flash2"), flash2},
                      {QStringLiteral("effect2"), enumToJson(effect2.underlying())},
                     });
}

ShootbackConfigurationData ShootbackConfigurationData::fromJson(const QJsonObject &obj)
{
  ShootbackConfigurationData ret;
  get(obj, QStringLiteral("interval1"), ret.interval1);
  get(obj, QStringLiteral("flash1"), ret.flash1);
  get(obj, QStringLiteral("effect1"), ret.effect1);
  get(obj, QStringLiteral("interval2"), ret.interval2);
  get(obj, QStringLiteral("flash2"), ret.flash2);
  get(obj, QStringLiteral("effect2"), ret.effect2);
  return ret;
}


//
// TargetAreaAssignmentData
//
QJsonObject TargetAreaAssignmentData::toJson() const
{
  return QJsonObject({{QStringLiteral("id"), id},
                      {QStringLiteral("name"), name},
                      {QStringLiteral("areaId"), areaId},
                      {QStringLiteral("targetParticipantId"), targetParticipantId},
                      {QStringLiteral("configuration"), configuration.toJson()},
                      {QStringLiteral("isActive"), isActive},
                     });
}

TargetAreaAssignmentData TargetAreaAssignmentData::fromJson(const QJsonObject &obj)
{
  TargetAreaAssignmentData ret;
  get(obj, QStringLiteral("id"), ret.id);
  get(obj, QStringLiteral("name"), ret.name);

  get(obj, QStringLiteral("areaId"), ret.areaId);
  get(obj, QStringLiteral("targetParticipantId"), ret.targetParticipantId);
  get(obj, QStringLiteral("configuration"), ret.configuration);
  get(obj, QStringLiteral("isActive"), ret.isActive);
  return ret;
}

} // namespace TargetManagement