#include "Shaders/ShaderProgram.h"
#include "Audio/AudioPlayer.h"
#include "GLObjects/SpectralMesh.h"
#include "OGL.h"
#include "Camera.h"

#include <iostream>

int main(int argc, char** argv) {
	try {
		if(argc != 2) {
			std::cout << "invalid arguments" << std::endl;
			return 0;
		}
		std::string musicFile = argv[1];

		OGL::instance()->init();

		ShaderProgram program("../shaders/vertex.glsl", "../shaders/fragment.glsl");
		OGL::instance()->setCurShaderProgram(&program);

		SpectralMesh mesh(&program, 512);
		mesh.create();
		OGL::instance()->addObject(&mesh);

		Camera::instance()->init();

		AudioPlayer player(musicFile);
		float* line = new float[2048];
		memset(line, 0, 2048);
		player.setStreamListener([&mesh, line](float *data, std::size_t framesCount, std::size_t depth, std::size_t channels) {
			memmove(line, line + 1024, 1024);
			if(channels > 1) { // if we have more than one channel, use the first
				for(std::size_t i = 0, j = 0; i < framesCount; i += channels, ++j) {
					line[1024 + j] = data[i];
				}
			} else {
				memcpy(line + 1024, data, 1024);
			}

			mesh.addLine(line, depth);
			mesh.addLine(line + 256, depth);
			mesh.addLine(line + 512, depth);
			mesh.addLine(line + 768, depth);
		});
		player.play();

		OGL::instance()->run();
		delete[] line;
	} catch (std::exception& ex) {
		std::cout << "exception: " << ex.what() << std::endl;
	}
}