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+/*
+Copyright (C) 2012 Sebastian Herbord. All rights reserved.
+
+This file is part of Mod Organizer.
+
+Mod Organizer is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Mod Organizer is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef WORKAROUNDS_H
+#define WORKAROUNDS_H
+
+#include "loadmechanism.h"
+
+#include <iplugin.h>
+
+#include <QSettings>
+#include <QListWidget>
+#include <QComboBox>
+
+
+/**
+ * manages the settings for Mod Organizer. The settings are not cached
+ * inside the class but read/written directly from/to disc
+ **/
+class Settings : public QObject
+{
+
+  Q_OBJECT
+
+public:
+
+  /**
+   * @brief constructor
+   **/
+  Settings();
+
+  virtual ~Settings();
+
+  static Settings &instance();
+
+  /**
+   * unregister all plugins from settings
+   */
+  void clearPlugins();
+
+  /**
+   * @brief register plugin to be configurable
+   * @param plugin the plugin to register
+   */
+  void registerPlugin(IPlugin *plugin);
+
+  /**
+   * displays a SettingsDialog that allows the user to change settings. If the
+   * user accepts the changes, the settings are immediately written
+   **/
+  void query(QWidget *parent);
+
+  /**
+   * set up the settings for the specified plugins
+   **/
+  void addPluginSettings(const std::vector<IPlugin*> &plugins);
+
+  /**
+   * @return true if the user wants unchecked plugins (esp, esm) should be hidden from
+   *         the virtual dat adirectory
+   **/
+  bool hideUncheckedPlugins() const;
+
+  /**
+   * @return true if files of the core game are forced-enabled so the user can't accidentally disable them
+   */
+  bool forceEnableCoreFiles() const;
+
+  /**
+   * the steam appid is assigned by the steam platform to each product sold there.
+   * The appid may differ between different versions of a game so it may be impossible
+   * for Mod Organizer to automatically recognize it, though usually it does
+   * @return the steam appid for the game
+   **/
+  QString getSteamAppID() const;
+
+  /**
+   * retrieve the directory where downloads are stored (with native separators)
+   **/
+  QString getDownloadDirectory() const;
+
+  /**
+   * retrieve the directory where mods are stored (with native separators)
+   **/
+  QString getModDirectory() const;
+
+  /**
+   * returns the version of nmm to impersonate when connecting to nexus
+   **/
+  QString getNMMVersion() const;
+
+  /**
+   * retrieve the directory where the web cache is stored (with native separators)
+   **/
+  QString getCacheDirectory() const;
+
+  /**
+   * @return true if the user has set up automatic login to nexus
+   **/
+  bool automaticLoginEnabled() const;
+
+  /**
+   * @brief retrieve the login information for nexus
+   *
+   * @param username (out) receives the user name for nexus
+   * @param password (out) received the password for nexus
+   * @return true if automatic login is active, false otherwise
+   **/
+  bool getNexusLogin(QString &username, QString &password) const;
+
+  /**
+   * @return the configured log level
+   */
+  int logLevel() const;
+
+  /**
+   * @brief set the nexus login information
+   *
+   * @param username username
+   * @param password password
+   */
+  void setNexusLogin(QString username, QString password);
+
+  /**
+   * @return the load mechanism to be used
+   **/
+  LoadMechanism::EMechanism getLoadMechanism() const;
+
+  /**
+   * @brief activate the load mechanism selected by the user
+   **/
+  void setupLoadMechanism();
+
+  /**
+   * @return true if the user prefers the integrated installer over external variants
+   **/
+  bool preferIntegratedInstallers();
+
+  /**
+   * @return true if the user prefers to use an external browser over the integrated one
+   **/
+  bool preferExternalBrowser();
+
+  /**
+   * @return true if the user has enabled the quick installer (default true)
+   **/
+  bool enableQuickInstaller();
+
+  /**
+   * @brief sets the new motd hash
+   **/
+  void setMotDHash(uint hash);
+
+  /**
+   * @return hash of the last displayed message of the day
+   **/
+  uint getMotDHash() const;
+
+  /**
+   * @brief allows direct access to the wrapped QSettings object
+   * @return the wrapped QSettings object
+   */
+  QSettings &directInterface() { return m_Settings; }
+
+  /**
+   * @brief retrieve a setting for one of the installed plugins
+   * @param pluginName name of the plugin
+   * @param key name of the setting to retrieve
+   * @return the requested value as a QVariant
+   * @throws an exception is thrown if this setting doesn't exist
+   */
+  QVariant pluginSetting(const QString &pluginName, const QString &key) const;
+
+private:
+
+  QString obfuscate(const QString &password) const;
+  QString deObfuscate(const QString &password) const;
+
+  void addLanguages(QComboBox *languageBox);
+  void addStyles(QComboBox *styleBox);
+  bool isNXMHandler(bool *modifyable);
+  void setNXMHandlerActive(bool active, bool writable);
+
+private slots:
+
+  void resetDialogs();
+
+signals:
+
+  void languageChanged(const QString &newLanguage);
+  void styleChanged(const QString &newStyle);
+
+private:
+
+  static Settings *s_Instance;
+
+  QSettings m_Settings;
+
+  LoadMechanism m_LoadMechanism;
+
+  std::vector<IPlugin*> m_Plugins;
+
+  QMap<QString, QMap<QString, QVariant> > m_PluginSettings;
+
+};
+
+#endif // WORKAROUNDS_H