#pragma once

#include <optional>
#include <type_traits>

#include <QtCore/QtCore>
#include <QtGui/QAction>
#include <QtWidgets/QCheckBox>
#include <QtWidgets/QComboBox>
#include <QtWidgets/QDoubleSpinBox>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QSlider>
#include <QtWidgets/QSpinBox>

#include "core/host_settings.h"
#include "qthost.h"
#include "settingwidgetbinder.h"

/// This nastyness is required because input profiles aren't overlaid settings like the rest of them, it's
/// input profile *or* global, not both.
namespace ControllerSettingWidgetBinder {
/// Interface specific method of BindWidgetToBoolSetting().
template<typename WidgetType>
static void BindWidgetToInputProfileBool(SettingsInterface* sif, WidgetType* widget, std::string section,
                                         std::string key, bool default_value)
{
  using Accessor = SettingWidgetBinder::SettingAccessor<WidgetType>;

  if (sif)
  {
    const bool value = sif->GetBoolValue(section.c_str(), key.c_str(), default_value);
    Accessor::setBoolValue(widget, value);

    Accessor::connectValueChanged(widget, [sif, widget, section = std::move(section), key = std::move(key)]() {
      const bool new_value = Accessor::getBoolValue(widget);
      sif->SetBoolValue(section.c_str(), key.c_str(), new_value);
      sif->Save();
      g_emu_thread->reloadGameSettings();
    });
  }
  else
  {
    const bool value = Host::GetBaseBoolSettingValue(section.c_str(), key.c_str(), default_value);
    Accessor::setBoolValue(widget, value);

    Accessor::connectValueChanged(widget, [widget, section = std::move(section), key = std::move(key)]() {
      const bool new_value = Accessor::getBoolValue(widget);
      Host::SetBaseBoolSettingValue(section.c_str(), key.c_str(), new_value);
      Host::CommitBaseSettingChanges();
      g_emu_thread->applySettings();
    });
  }
}

/// Interface specific method of BindWidgetToFloatSetting().
template<typename WidgetType>
static void BindWidgetToInputProfileFloat(SettingsInterface* sif, WidgetType* widget, std::string section,
                                          std::string key, float default_value)
{
  using Accessor = SettingWidgetBinder::SettingAccessor<WidgetType>;

  if (sif)
  {
    const float value = sif->GetFloatValue(section.c_str(), key.c_str(), default_value);
    Accessor::setFloatValue(widget, value);

    Accessor::connectValueChanged(widget, [sif, widget, section = std::move(section), key = std::move(key)]() {
      const float new_value = Accessor::getFloatValue(widget);
      sif->SetFloatValue(section.c_str(), key.c_str(), new_value);
      sif->Save();
      g_emu_thread->reloadGameSettings();
    });
  }
  else
  {
    const float value = Host::GetBaseFloatSettingValue(section.c_str(), key.c_str(), default_value);
    Accessor::setFloatValue(widget, value);

    Accessor::connectValueChanged(widget, [widget, section = std::move(section), key = std::move(key)]() {
      const float new_value = Accessor::getFloatValue(widget);
      Host::SetBaseFloatSettingValue(section.c_str(), key.c_str(), new_value);
      Host::CommitBaseSettingChanges();
      g_emu_thread->applySettings();
    });
  }
}

/// Interface specific method of BindWidgetToNormalizedSetting().
template<typename WidgetType>
static void BindWidgetToInputProfileNormalized(SettingsInterface* sif, WidgetType* widget, std::string section,
                                               std::string key, float range, float default_value)
{
  using Accessor = SettingWidgetBinder::SettingAccessor<WidgetType>;

  if (sif)
  {
    const float value = sif->GetFloatValue(section.c_str(), key.c_str(), default_value);
    Accessor::setIntValue(widget, static_cast<int>(value * range));

    Accessor::connectValueChanged(widget, [sif, widget, section = std::move(section), key = std::move(key), range]() {
      const int new_value = Accessor::getIntValue(widget);
      sif->SetFloatValue(section.c_str(), key.c_str(), static_cast<float>(new_value) / range);
      sif->Save();
      g_emu_thread->reloadGameSettings();
    });
  }
  else
  {
    const float value = Host::GetBaseFloatSettingValue(section.c_str(), key.c_str(), default_value);
    Accessor::setIntValue(widget, static_cast<int>(value * range));

    Accessor::connectValueChanged(widget, [widget, section = std::move(section), key = std::move(key), range]() {
      const float new_value = (static_cast<float>(Accessor::getIntValue(widget)) / range);
      Host::SetBaseFloatSettingValue(section.c_str(), key.c_str(), new_value);
      Host::CommitBaseSettingChanges();
      g_emu_thread->applySettings();
    });
  }
}

/// Interface specific method of BindWidgetToStringSetting().
template<typename WidgetType>
static void BindWidgetToInputProfileString(SettingsInterface* sif, WidgetType* widget, std::string section,
                                           std::string key, std::string default_value = std::string())
{
  using Accessor = SettingWidgetBinder::SettingAccessor<WidgetType>;

  if (sif)
  {
    const QString value(
      QString::fromStdString(sif->GetStringValue(section.c_str(), key.c_str(), default_value.c_str())));

    Accessor::setStringValue(widget, value);

    Accessor::connectValueChanged(widget, [widget, sif, section = std::move(section), key = std::move(key)]() {
      const QString new_value = Accessor::getStringValue(widget);
      if (!new_value.isEmpty())
        sif->SetStringValue(section.c_str(), key.c_str(), new_value.toUtf8().constData());
      else
        sif->DeleteValue(section.c_str(), key.c_str());

      sif->Save();
      g_emu_thread->reloadGameSettings();
    });
  }
  else
  {
    const QString value(
      QString::fromStdString(Host::GetBaseStringSettingValue(section.c_str(), key.c_str(), default_value.c_str())));

    Accessor::setStringValue(widget, value);

    Accessor::connectValueChanged(widget, [widget, section = std::move(section), key = std::move(key)]() {
      const QString new_value = Accessor::getStringValue(widget);
      if (!new_value.isEmpty())
        Host::SetBaseStringSettingValue(section.c_str(), key.c_str(), new_value.toUtf8().constData());
      else
        Host::DeleteBaseSettingValue(section.c_str(), key.c_str());
      Host::CommitBaseSettingChanges();
      g_emu_thread->applySettings();
    });
  }
}
} // namespace ControllerSettingWidgetBinder