#ifndef MODINFOREGULAR_H
#define MODINFOREGULAR_H

#include "modinfowithconflictinfo.h"

#include "nexusinterface.h"

/**
 * @brief Represents meta information about a single mod.
 *
 * Represents meta information about a single mod. The class interface is used
 * to manage the mod collection
 *
 **/
class ModInfoRegular : public ModInfoWithConflictInfo
{

  Q_OBJECT

  friend class ModInfo;

public:

  ~ModInfoRegular();

  virtual bool isRegular() const { return true; }

  virtual bool isEmpty() const;

  /**
   * @brief test if there is a newer version of the mod
   *
   * test if there is a newer version of the mod. This does NOT cause
   * information to be retrieved from the nexus, it will only test version information already
   * available locally. Use checkAllForUpdate() to update this version information
   *
   * @return true if there is a newer version
   **/
  bool updateAvailable() const;

  /**
   * @return true if the current update is being ignored
   */
  virtual bool updateIgnored() const { return m_IgnoredVersion == m_NewestVersion; }

  /**
   * @brief test if there is a newer version of the mod
   *
   * test if there is a newer version of the mod. This does NOT cause
   * information to be retrieved from the nexus, it will only test version information already
   * available locally. Use checkAllForUpdate() to update this version information
   *
   * @return true if there is a newer version
   **/
  bool downgradeAvailable() const;

  /**
   * @brief request an update of nexus description for this mod.
   *
   * This requests mod information from the nexus. This is an asynchronous request,
   * so there is no immediate effect of this call.
   *
   * @return returns true if information for this mod will be updated, false if there is no nexus mod id to use
   **/
  bool updateNXMInfo();

  /**
   * @brief assign or unassign the specified category
   *
   * Every mod can have an arbitrary number of categories assigned to it
   *
   * @param categoryID id of the category to set
   * @param active determines wheter the category is assigned or unassigned
   * @note this function does not test whether categoryID actually identifies a valid category
   **/
  void setCategory(int categoryID, bool active);

  /**
   * @brief set the name of this mod
   *
   * set the name of this mod. This will also update the name of the
   * directory that contains this mod
   *
   * @param name new name of the mod
   * @return true on success, false if the new name can't be used (i.e. because the new
   *         directory name wouldn't be valid)
   **/
  bool setName(const QString &name);

  /**
   * @brief change the notes (manually set information) for this mod
   * @param notes new notes
   */
  void setNotes(const QString &notes);

  /**
   * @brief set/change the nexus mod id of this mod
   *
   * @param modID the nexus mod id
   **/
  void setNexusID(int modID);

  /**
   * @brief set the version of this mod
   *
   * this can be used to overwrite the version of a mod without actually
   * updating the mod
   *
   * @param version the new version to use
   **/
  void setVersion(const MOBase::VersionInfo &version);

  /**
   * @brief set the newest version of this mod on the nexus
   *
   * this can be used to overwrite the version of a mod without actually
   * updating the mod
   *
   * @param version the new version to use
   * @todo this function should be made obsolete. All queries for mod information should go through
   *       this class so no public function for this change is required
   **/
  void setNewestVersion(const MOBase::VersionInfo &version);

  /**
   * @brief changes/updates the nexus description text
   * @param description the current description text
   */
  virtual void setNexusDescription(const QString &description);

  virtual void setInstallationFile(const QString &fileName);

  /**
   * @brief sets the category id from a nexus category id. Conversion to MO id happens internally
   * @param categoryID the nexus category id
   * @note if a mapping is not possible, the category is set to the default value
   */
  virtual void addNexusCategory(int categoryID);

  /**
   * @brief sets the new primary category of the mod
   * @param categoryID the category to set
   */
  virtual void setPrimaryCategory(int categoryID) { m_PrimaryCategory = categoryID; m_MetaInfoChanged = true; }

  /**
   * @brief sets the download repository
   * @param repository
   */
  virtual void setRepository(const QString &repository) { m_Repository = repository; }

  /**
   * update the endorsement state for the mod. This only changes the
   * buffered state, it does not sync with Nexus
   * @param endorsed the new endorsement state
   */
  virtual void setIsEndorsed(bool endorsed);

  /**
   * set the mod to "i don't intend to endorse". The mod will not show as unendorsed but can still be endorsed
   */
  virtual void setNeverEndorse();

  /**
   * @brief delete the mod from the disc. This does not update the global ModInfo structure or indices
   * @return true if the mod was successfully removed
   **/
  bool remove();

  /**
   * @brief endorse or un-endorse the mod
   * @param doEndorse if true, the mod is endorsed, if false, it's un-endorsed.
   * @note if doEndorse doesn't differ from the current value, nothing happens.
   */
  virtual void endorse(bool doEndorse);

  /**
   * @brief getter for the mod name
   *
   * @return the mod name
   **/
  QString name() const { return m_Name; }

  /**
   * @brief getter for the mod path
   *
   * @return the (absolute) path to the mod
   **/
  QString absolutePath() const;

  /**
   * @brief getter for the newest version number of this mod
   *
   * @return newest version of the mod
   **/
  MOBase::VersionInfo getNewestVersion() const { return m_NewestVersion; }

  /**
   * @brief ignore the newest version for updates
   */
  void ignoreUpdate(bool ignore);

  /**
   * @brief getter for the installation file
   *
   * @return file used to install this mod from
   */
  virtual QString getInstallationFile() const { return m_InstallationFile; }
  /**
   * @brief getter for the nexus mod id
   *
   * @return the nexus mod id. may be 0 if the mod id isn't known or doesn't exist
   **/
  int getNexusID() const { return m_NexusID; }

  /**
   * @return the fixed priority of mods of this type or INT_MIN if the priority of mods
   *         needs to be user-modifiable
   */
  virtual int getFixedPriority() const { return INT_MIN; }

  /**
   * @return true if the mod can be updated
   */
  virtual bool canBeUpdated() const { return m_NexusID > 0; }

  /**
   * @return true if the mod can be enabled/disabled
   */
  virtual bool canBeEnabled() const { return true; }

  /**
   * @return a list of flags for this mod
   */
  virtual std::vector<EFlag> getFlags() const;

  virtual std::vector<EContent> getContents() const;

  /**
   * @return an indicator if and how this mod should be highlighted by the UI
   */
  virtual int getHighlight() const;

  /**
   * @return list of names of ini tweaks
   **/
  std::vector<QString> getIniTweaks() const;

  /**
   * @return a description about the mod, to be displayed in the ui
   */
  virtual QString getDescription() const;

  /**
   * @return manually set notes for this mod
   */
  virtual QString notes() const;

  /**
   * @return time this mod was created (file time of the directory)
   */
  virtual QDateTime creationTime() const;

  /**
   * @return nexus description of the mod (html)
   */
  QString getNexusDescription() const;

  /**
   * @return repository from which the file was downloaded
   */
  virtual QString repository() const;

  /**
   * @return true if the file has been endorsed on nexus
   */
  virtual EEndorsedState endorsedState() const;

  /**
   * @return last time nexus was queried for infos on this mod
   */
  virtual QDateTime getLastNexusQuery() const;

  virtual QStringList archives() const;

  virtual void addInstalledFile(int modId, int fileId);

  /**
   * @brief stores meta information back to disk
   */
  virtual void saveMeta();

  void readMeta();

  /**
   * @brief set the URL for a mod
   */
  virtual void setURL(QString const &);

  /**
   * @returns the URL for a mod
   */
  virtual QString getURL() const;

private:

  void setEndorsedState(EEndorsedState endorsedState);

private slots:

  void nxmDescriptionAvailable(int modID, QVariant userData, QVariant resultData);
  void nxmEndorsementToggled(int, QVariant userData, QVariant resultData);
  void nxmRequestFailed(int modID, int fileID, QVariant userData, const QString &errorMessage);

protected:

  ModInfoRegular(const QDir &path, MOShared::DirectoryEntry **directoryStructure);

private:

  QString m_Name;
  QString m_Path;
  QString m_InstallationFile;
  QString m_Notes;
  QString m_NexusDescription;
  QString m_Repository;
  QString m_URL;

  QDateTime m_CreationTime;
  QDateTime m_LastNexusQuery;

  int m_NexusID;
  std::set<std::pair<int, int>> m_InstalledFileIDs;

  bool m_MetaInfoChanged;
  MOBase::VersionInfo m_NewestVersion;
  MOBase::VersionInfo m_IgnoredVersion;

  EEndorsedState m_EndorsedState;

  NexusBridge m_NexusBridge;

  mutable std::vector<ModInfo::EContent> m_CachedContent;
  mutable QTime m_LastContentCheck;

};


#endif // MODINFOREGULAR_H