#include <stdio.h>
#include <math.h>
#include <cstring>
#include <string>
#include <iostream>
#include <thread>
#include <chrono>
#include <deque>

#include "../../src/audio/AudioOutput.h"
#include "../../src/audio/AudioInput.h"
#include "../../src/audio/filter/FilterVad.h"
#include "../../src/audio/filter/FilterThreshold.h"
#include "../../src/audio/Audio.h"

#ifdef WIN32
	#include <windows.h>
#endif

using namespace std;
using namespace tc;

int main() {
	string error;
	if(!tc::audio::initialize(error)) {
		cerr << "Failed to initialize audio: " << error << endl;
		return 1;
	}
	auto playback_manager = audio::AudioOutput(2, 48000);
	if(!playback_manager.open_device(error, Pa_GetDefaultOutputDevice())) {
		cerr << "Failed to open output device (" << error << ")" << endl;
		return 1;
	}
	if(!playback_manager.playback()) {
		cerr << "failed to start playback" << endl;
		return 1;
	}

	auto input = audio::AudioInput(2, 48000);
	if(!input.open_device(error, Pa_GetDefaultInputDevice())) {
		cerr << "Failed to open input device (" << error << ")" << endl;
		return 1;
	}
	if(!input.record()) {
		cerr << "failed to start record" << endl;
		return 1;
	}

	{
		auto consumer = input.create_consumer(960);
		auto target_stream = playback_manager.create_source();
		auto vad_handler = make_shared<audio::filter::VadFilter>(2, 48000, 960);
		if(!vad_handler->initialize(error, 3, 4)) {
			cerr << "failed to initialize vad handler (" << error << ")";
			return 1;
		}

		auto threshold_filter = make_shared<audio::filter::ThresholdFilter>(2, 48000, 960);
		if(!threshold_filter->initialize(error, .5, 5)) {
			cerr << "failed to initialize threashold handler (" << error << ")";
			return 1;
		}

		consumer->on_read = [target_stream, vad_handler, threshold_filter](const void* buffer, size_t samples) {
			target_stream->enqueue_samples(buffer, samples);

			cout << "T: " << threshold_filter->analyze(buffer, 0) << endl;
			if(vad_handler->process(buffer)) {
				cout << "Read " << samples << endl;
				target_stream->enqueue_samples(buffer, samples);
			} else {
				cout << "Drop " << samples << endl;
			}
		};
		cout << "Read started" << endl;
	}

	this_thread::sleep_for(chrono::seconds(60));

	/*
	while(true) {
		this_thread::sleep_for(chrono::seconds(1000));
	}
	*/
	Pa_Terminate();
	return 1;
}