////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2006 - 2014, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_CLI
#define INCLUDED_CLI

#include <string>
#include <vector>
#include <map>

// Represents a single argument.
class A
{
public:
  A ();
  A (const std::string&, const std::string&);
  A (const std::string&, const int);
  A (const std::string&, const double);
  ~A ();
  A (const A&);
  A& operator= (const A&);
  void clear ();
  bool hasTag (const std::string&) const;
  void tag (const std::string&);
  void unTag (const std::string&);
  void unTagAll ();
  void attribute (const std::string&, const std::string&);
  void attribute (const std::string&, const int);
  void attribute (const std::string&, const double);
  const std::string attribute (const std::string&) const;
  void removeAttribute (const std::string&);
  const std::string dump () const;

public:
  std::string                         _name;
  std::vector <std::string>           _tags;
  std::map <std::string, std::string> _attributes;
};

// Represents the command line.
class CLI
{
public:
  CLI ();
  ~CLI ();
  void alias (const std::string&, const std::string&);
  void entity (const std::string&, const std::string&);
  void initialize (int, const char**);
  void add (const std::string&);
  void analyze (bool parse = true);
  const std::string getFilter ();
  const std::vector <std::string> getWords ();
  const std::vector <std::string> getModifications ();
  bool canonicalize (std::string&, const std::string&, const std::string&) const;
  const std::string dump (const std::string& title = "CLI Parser") const;

private:
  void addArg (const std::string&);
  void aliasExpansion ();
  void findOverrides ();
  void categorize ();
  bool exactMatch (const std::string&, const std::string&) const;
  void desugarTags ();
  void desugarAttributes ();
  void desugarAttributeModifiers ();
  void desugarPatterns ();
  void findIDs ();
  void findUUIDs ();
  void insertIDExpr ();
  void desugarPlainArgs ();
  void findOperators ();
  void findAttributes ();
  void insertJunctions ();
  void decomposeModAttributes ();
  void decomposeModAttributeModifiers ();
  void decomposeModTags ();
  void decomposeModSubstitutions ();

  bool isTerminator (const std::string&) const;
  bool isRCOverride (const std::string&) const;
  bool isConfigOverride (const std::string&) const;
  bool isTag (const std::string&) const;
  bool isUUIDList (const std::string&) const;
  bool isUUID (const std::string&) const;
  bool isIDSequence (const std::string&) const;
  bool isID (const std::string&) const;
  bool isPattern (const std::string&) const;
  bool isSubstitution (const std::string&) const;
  bool isAttribute (const std::string&) const;
  bool isOperator (const std::string&) const;

public:
  std::multimap <std::string, std::string> _entities;
  std::map <std::string, std::string>      _aliases;
  std::vector <std::string>                _original_args;
  std::vector <A>                          _args;

  std::vector <std::pair <int, int> >      _id_ranges;
  std::vector <std::string>                _uuid_list;
};

#endif