/*
    Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>

    This file is part of DCP-o-matic.

    DCP-o-matic 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.

    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.

*/


#include "analyse_audio_job.h"
#include "audio_analysis.h"
#include "dcpomatic_log.h"
#include "film.h"
#include "filter.h"
#include "player.h"
#include "playlist.h"
#include "config.h"
#include <dcp/compose.h>
#include <iostream>

#include "i18n.h"


using std::cout;
using std::dynamic_pointer_cast;
using std::make_shared;
using std::max;
using std::min;
using std::shared_ptr;
using std::string;
using std::vector;
using namespace dcpomatic;
#if BOOST_VERSION >= 106100
using namespace boost::placeholders;
#endif


/** @param from_zero true to analyse audio from time 0 in the playlist, otherwise begin at Playlist::start */
AnalyseAudioJob::AnalyseAudioJob (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist, bool from_zero)
	: Job (film)
	, _analyser (film, playlist, from_zero, boost::bind(&Job::set_progress, this, _1, false))
	, _playlist (playlist)
	, _path (film->audio_analysis_path(playlist))
{
	LOG_DEBUG_AUDIO_ANALYSIS_NC("AnalyseAudioJob::AnalyseAudioJob");
}


AnalyseAudioJob::~AnalyseAudioJob ()
{
	stop_thread ();
}


string
AnalyseAudioJob::name () const
{
	return _("Analysing audio");
}


string
AnalyseAudioJob::json_name () const
{
	return N_("analyse_audio");
}


void
AnalyseAudioJob::run ()
{
	LOG_DEBUG_AUDIO_ANALYSIS_NC("AnalyseAudioJob::run");

	auto player = make_shared<Player>(_film, _playlist);
	player->set_ignore_video ();
	player->set_ignore_text ();
	player->set_fast ();
	player->set_play_referenced ();
	player->Audio.connect (bind(&AudioAnalyser::analyse, &_analyser, _1, _2));

	bool has_any_audio = false;
	for (auto c: _playlist->content()) {
		if (c->audio) {
			has_any_audio = true;
		}
	}

	if (has_any_audio) {
		player->seek (_analyser.start(), true);
		while (!player->pass ()) {}
	}

	LOG_DEBUG_AUDIO_ANALYSIS_NC("Loop complete");

	_analyser.finish ();
	auto analysis = _analyser.get();
	analysis.write (_path);

	LOG_DEBUG_AUDIO_ANALYSIS_NC("Job finished");
	set_progress (1);
	set_state (FINISHED_OK);
}