/*
    Copyright (C) 2016 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 "imp_cpl.h"
#include "xml.h"
#include "essence_descriptor.h"
#include "segment.h"
#include <libcxml/cxml.h>
#include <boost/foreach.hpp>
#include <iostream>

using std::string;
using std::list;
using boost::shared_ptr;
using namespace dcp;

/** Construct a DCPCPL object from a XML file */
IMPCPL::IMPCPL (boost::filesystem::path file)
	: CPL (file)
{
	shared_ptr<cxml::Document> f = read_common (file);

	/* XXX: find out which of these are compulsory and which are optional */

	_annotation = f->optional_string_child("Annotation").get_value_or("");
	_content_title = f->string_child("ContentTitle");
	_content_originator = f->optional_string_child("ContentOriginator").get_value_or("");

	BOOST_FOREACH (cxml::ConstNodePtr i, f->node_child("EssenceDescriptorList")->node_children("EssenceDescriptor")) {
		_essence_descriptors.push_back (EssenceDescriptor::create (i));
	}

	_edit_rate = Fraction (f->string_child ("EditRate"));

	f->ignore_child ("ContentVersionList");
	f->ignore_child ("ExtensionProperties");

	_segments = type_grand_children<Segment> (f, "SegmentList", "Segment");

	f->done ();
}

void
IMPCPL::resolve_refs (list<shared_ptr<Asset> > assets)
{
	BOOST_FOREACH (shared_ptr<Segment> i, _segments) {
		i->resolve_refs (assets);
	}
}

int64_t
IMPCPL::duration () const
{
	/* XXX */
	return 0;
}

bool
IMPCPL::encrypted () const
{
	/* No IMP encryption (yet) */
	return false;
}

void
IMPCPL::add (DecryptedKDM const &)
{
	/* No IMP encryption (yet) */
}

string
IMPCPL::pkl_annotation () const
{
	/* XXX */
	return "";
}

/* XXX: this standard variable is a shame */
string
IMPCPL::pkl_type (Standard) const
{
	return "text/xml";
}