#ifndef __APP_STATE_HH__
#define __APP_STATE_HH__

// Copyright (C) 2002 Graydon Hoare <graydon@pobox.com>
//
// This program is made available under the GNU GPL version 2.0 or
// greater. See the accompanying file COPYING for details.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE.

class app_state;
class lua_hooks;

#include <map>
#include "vector.hh"

#include <boost/shared_ptr.hpp>

#include "database.hh"
#include "key_store.hh"
#include "lua_hooks.hh"
#include "options.hh"
#include "paths.hh"
#include "project.hh"
#include "vocab.hh"
#include "work.hh"
#include "ssh_agent.hh"

namespace Botan
{
  class PK_Signer;
  class RSA_PrivateKey;
  class PK_Verifier;
  class RSA_PublicKey;
};

// This class is supposed to hold all (or.. well, most) of the state
// of the application, barring some unfortunate static objects like
// the debugging / logging system and the command objects, for the
// time being. The vague intent being to make life easier for anyone
// who wants to embed this program as a library someday.

class app_state
{
public:
  database db;
  lua_hooks lua;
  key_store keys;
  workspace work;
  ssh_agent agent;

  options opts;

  bool found_workspace;
  bool branch_is_sticky;
  bool mtn_automate_allowed;

  // These are used to cache signers/verifiers (if the hook allows).
  // They can't be function-static variables in key.cc, since they
  // must be destroyed before the Botan deinitialize() function is
  // called.

  std::map<rsa_keypair_id,
    std::pair<boost::shared_ptr<Botan::PK_Signer>,
        boost::shared_ptr<Botan::RSA_PrivateKey> > > signers;
  std::map<rsa_keypair_id,
    std::pair<boost::shared_ptr<Botan::PK_Verifier>,
        boost::shared_ptr<Botan::RSA_PublicKey> > > verifiers;

  void allow_workspace();
  void process_options();
  void require_workspace(std::string const & explanation = "");
  void create_workspace(system_path const & dir);

  // Set the branch name. If you only invoke set_branch, the branch
  // name is not sticky (and won't be written to the workspace and
  // reused by subsequent monotone invocations).  Commands which
  // switch the working to a different branch should invoke
  // make_branch_sticky (before require_workspace because this
  // function updates the workspace).

  void make_branch_sticky();

private:
  project_t project;
public:
  //project_t & get_project(string const & name);
  project_t & get_project(); // get_project(opts.project) or I()

  void set_database(system_path const & filename);
  void set_key_dir(system_path const & filename);
  void set_diff_format(diff_type dtype);

  explicit app_state();
  ~app_state();

private:
  void load_rcfiles();
  void write_options();
};

// Local Variables:
// mode: C++
// fill-column: 76
// c-file-style: "gnu"
// indent-tabs-mode: nil
// End:
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s:

#endif // __APP_STATE_HH__