/**
	This file is a part of our_dick
	Copyright (C) 2020 rexy712

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Affero General Public License as published by
	the Free Software Foundation, either version 3 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 Affero General Public License for more details.

	You should have received a copy of the GNU Affero General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef OUR_DICK_AUDIO_CHANNEL_IMPL_HPP
#define OUR_DICK_AUDIO_CHANNEL_IMPL_HPP

#include <atomic>
#include <cstdlib> //size_t
#include "util/ring_buffer.hpp"
#include "audio/mixdata.hpp"

namespace audio::impl{

	class channel
	{
	private:
		util::mpmc_ring_buffer<mixdata> m_data;
		std::atomic_bool m_paused;
		std::atomic_bool m_active;
		bool m_stopped;

		//audio thread access only!
		struct alignas(64){
			mixdata data = {};
			size_t offset = 0;
		}m_playing_chunk;

	public:
		channel();
		explicit channel(size_t maxsize);
		channel(const channel& c);
		channel(channel&& c);
		~channel() = default;

		channel& operator=(const channel& c);
		channel& operator=(channel&& c);

		mixdata pop();
		bool try_pop(mixdata& m);

		void resize_buffer(size_t newsize);

		void play(const mixdata& m);

		void pause();
		void resume();
		void stop();

		bool is_paused()const;
		bool is_playing()const;
		bool is_stopped()const;

		mixdata& playing_chunk();
		const mixdata& playing_chunk()const;
		size_t& playing_offset();
		const size_t& playing_offset()const;

		bool is_active()const;
		void set_active(bool b);

	private:
		void wait_for_consumer();
	};

}

#endif