/**
	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/>.
*/

#include "audio/stream.hpp"
#include "audio/init.hpp"
#include "audio/error.hpp"

#include <portaudio.h>

namespace audio{

	stream::~stream(){
		close();
		delete m_cb;
	}
	error stream::start(){
		return error(m_err = Pa_StartStream(m_stream));
	}
	error stream::stop(){
		return error(m_err = Pa_StopStream(m_stream));
	}
	error stream::abort(){
		return error(m_err = Pa_AbortStream(m_stream));
	}
	error stream::close(){
		if(m_stream){
			m_err = Pa_CloseStream(m_stream);
			m_stream = nullptr;
			return error(m_err);
		}
		return error(paNotInitialized);
	}

	bool stream::is_stopped()const{
		return (m_err = Pa_IsStreamStopped(m_stream)) == 1;
	}
	bool stream::is_active()const{
		return (m_err = Pa_IsStreamActive(m_stream)) == 1;
	}


	error stream::last_error()const{
		return error(m_err);
	}

	PaStream* stream::initialize_global_instance(){
		pa_system::instance();
		return nullptr;
	}
	int stream::open_default_stream(PaStream** stream, int in_c, int out_c,
	                                int fmt, double samplerate,
	                                size_t bufsize, detail::callback_iface* cb)
	{
		return Pa_OpenDefaultStream(stream, in_c, out_c, fmt, samplerate, bufsize, callback, cb);
	}
	int stream::callback(const void* input, void* output, unsigned long framecount,
	                    const PaStreamCallbackTimeInfo* /*timeInfo*/, PaStreamCallbackFlags /*statusFlags*/,
	                    void* userdata)
	{
		detail::callback_iface* cb = static_cast<detail::callback_iface*>(userdata);
		return (*cb)(input, output, framecount);
	}

}