/*
    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>

    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.

*/

#include <boost/shared_ptr.hpp>
#include <boost/optional.hpp>
#include <boost/function.hpp>
#include "types.h"
#include "kdm.h"

namespace cxml {
	class Node;
}

namespace libdcp {

class AssetInstance
{
public:
	AssetInstance ()
		: intrinsic_duration (0)
		, entry_point (0)
		, duration (0)
	{}

	AssetInstance (boost::shared_ptr<const cxml::Node>);

	/** @param node a CPL AssetList node */
	virtual void write_to_cpl (xmlpp::Node* node, bool interop) const;
	virtual std::string cpl_node_name () const = 0;
	virtual std::pair<std::string, std::string> cpl_node_attribute (bool) const {
		return std::make_pair ("", "");
	}
	virtual bool equals (boost::shared_ptr<const AssetInstance>, EqualityOptions, boost::function<void (libdcp::NoteType, std::string)>) const;

	bool encrypted () const {
		return !key_id.empty ();
	}

	std::string id;
	std::string annotation_text;
	Fraction edit_rate;
	int64_t intrinsic_duration;
	int64_t entry_point;
	int64_t duration;
	std::string key_id;

	boost::optional<KDMCipher> kdm_cipher;
};

class Picture : public AssetInstance
{
public:
	Picture ()
		: AssetInstance ()
	{}
	
	Picture (boost::shared_ptr<const cxml::Node> node);

	void write_to_cpl (xmlpp::Node* node, bool interop) const;
	bool equals (boost::shared_ptr<const AssetInstance>, EqualityOptions, boost::function<void (libdcp::NoteType, std::string)>) const;
	
	Fraction frame_rate;
	Fraction screen_aspect_ratio;
};

class MainPicture : public Picture
{
public:
	MainPicture ()
		: Picture ()
	{}
	
	MainPicture (boost::shared_ptr<const cxml::Node> node)
		: Picture (node)
	{}

	std::string cpl_node_name () const {
		return "MainPicture";
	}
};

class MainStereoscopicPicture : public Picture
{
public:
	MainStereoscopicPicture ()
		: Picture ()
	{}
	
	MainStereoscopicPicture (boost::shared_ptr<const cxml::Node> node)
		: Picture (node)
	{}

	std::string cpl_node_name () const {
		return "MainStereoscopicPicture";
	}

	std::pair<std::string, std::string> cpl_node_attribute (bool interop) const;
};

class MainSound : public AssetInstance
{
public:
	MainSound ()
		: AssetInstance ()
	{}
	
	MainSound (boost::shared_ptr<const cxml::Node> node)
		: AssetInstance (node)
	{}

	std::string cpl_node_name () const {
		return "MainSound";
	}
	
};

class MainSubtitle : public AssetInstance
{
public:
	MainSubtitle ()
		: AssetInstance ()
	{}
	
	MainSubtitle (boost::shared_ptr<const cxml::Node> node)
		: AssetInstance (node)
	{}

	std::string cpl_node_name () const {
		return "MainSubtitle";
	}
	
};
	
}