// MagdaFileCatalog.h

#ifndef dset__MagdaFileCatalog_H
#define dset__MagdaFileCatalog_H

#include "dataset_file/FileCatalog.h"
#include <string>

namespace mysqlpp {
  class Connection;
}

namespace dset {

class MagdaFileCatalog : public FileCatalog {

public: // typedefs
  typedef FileCatalog::Name Name;
  typedef std::string Host;
  typedef std::string string; 

private:  // data

  mysqlpp::Connection* m_connection;
  Host  m_host;
  std::string m_cache;

public:  // Static functions

  // Catalog type.
  static Name static_type() { return "MagdaFileCatalog"; }

  // Catalog type.
  static Name static_url_scheme() { return "lfn"; }

  // Return the single instance of this class.
  static MagdaFileCatalog& instance();
 
private:  // Hidden function.

  // Constructor.
  MagdaFileCatalog();

  // Message
  void message(string msg) const;
 
  // All sites associated with the host
  string allsites() const;

  // The store type 
  string storetype(string site) const;

public:  // Virtual functions

  // Destructor.
  ~MagdaFileCatalog();

  // Return the catalog type.
  Name type() const;

  // Return the catalog name.
  Name name() const;

  // Return whether a file appears in the catalog.
  // True if get(id) return a name.
  bool has(Url lurl);

  // GUID. Fails.
  Url guid(Url lurl);

  // LFN.
  Url lfn(Url lurl);

  // Fetch a physical file replica corresponding
  // to the given ID.
  // File must exist and be readable.
  // Returns blank for failure.
  UrlList replicas(Url lurl);
  
  // Put a file in the catalog.
  // Input is the name of an existing physical file.
  // File must exist and be readable.
  // The location name lname is ignored.
  // The lifetime ltime is ignored.
  // A valid ID is returned if successful.
  Url insert(Url purl, Url lurl =Url(), Time ltime =0);
  
  // Remove.
  int remove(Url lurl, Url purl, bool remlog);

};

}  // end namespace dset

#endif