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/*
    Copyright (C) 2000-2007 Paul Davis 

    This program 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 2 of the License, or
    (at your option) any later version.

    This program 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 this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_plugin_manager_h__
#define __ardour_plugin_manager_h__

#include <list>
#include <map>
#include <string>
#include <set>
#include <boost/utility.hpp>

#include "ardour/types.h"
#include "ardour/plugin.h"

#ifdef HAVE_SLV2
#include "ardour/lv2_plugin.h"
#endif

namespace ARDOUR {

class Plugin;

class PluginManager : public boost::noncopyable {
  public:
	PluginManager ();
	~PluginManager ();

	/* realtime plugin APIs */

	ARDOUR::PluginInfoList &vst_plugin_info ()    { return _vst_plugin_info; }
	ARDOUR::PluginInfoList &ladspa_plugin_info () { return _ladspa_plugin_info; }
	ARDOUR::PluginInfoList &lv2_plugin_info ()    { return _lv2_plugin_info; }
	ARDOUR::PluginInfoList &au_plugin_info ()     { return _au_plugin_info; }

	void refresh ();

	int add_ladspa_directory (std::string dirpath);
	int add_vst_directory (std::string dirpath);

	static PluginManager* the_manager() { return _manager; }

	void load_favorites ();
	void save_favorites ();
	void add_favorite (ARDOUR::PluginType type, std::string unique_id);
	void remove_favorite (ARDOUR::PluginType type, std::string unique_id);
	bool is_a_favorite_plugin (const PluginInfoPtr&);
	
  private:
	struct FavoritePlugin {
	    ARDOUR::PluginType type;
	    std::string unique_id;

	    FavoritePlugin (ARDOUR::PluginType t, std::string id) 
	    : type (t), unique_id (id) {}
	    
	    bool operator==(const FavoritePlugin& other) const {
		    return other.type == type && other.unique_id == unique_id;
	    }

	    bool operator<(const FavoritePlugin& other) const {
		    return other.type < type || other.unique_id < unique_id;
	    }
	};
	typedef std::set<FavoritePlugin> FavoritePluginList;
	FavoritePluginList favorites;

	ARDOUR::PluginInfoList _vst_plugin_info;
	ARDOUR::PluginInfoList _ladspa_plugin_info;
	ARDOUR::PluginInfoList _lv2_plugin_info;
	ARDOUR::PluginInfoList _au_plugin_info;

#ifdef HAVE_SLV2
	LV2World* _lv2_world;
#endif
	
	std::map<uint32_t, std::string> rdf_type;

	std::string ladspa_path;
	std::string vst_path;

	void ladspa_refresh ();
	void vst_refresh ();

	void add_lrdf_data (const std::string &path);
	void add_ladspa_presets ();
	void add_vst_presets ();
	void add_presets (std::string domain);

	int au_discover ();
	void au_refresh ();
	
	int lv2_discover ();
	void lv2_refresh ();

	int vst_discover_from_path (std::string path);
	int vst_discover (std::string path);

	int ladspa_discover_from_path (std::string path);
	int ladspa_discover (std::string path);

	std::string get_ladspa_category (uint32_t id);
	std::vector<uint32_t> ladspa_plugin_whitelist;

	static PluginManager* _manager; // singleton
};

} /* namespace ARDOUR */

#endif /* __ardour_plugin_manager_h__ */