#include <NeuralNetwork/FeedForward/Network.h>

#include <cassert>
#include <iostream>

int main() {
	{	// XOR problem
		NeuralNetwork::FeedForward::Network n(2);
		NeuralNetwork::ActivationFunction::Sigmoid a(-1);
		NeuralNetwork::FeedForward::Layer &hidden=n.appendLayer(2,a);
		NeuralNetwork::FeedForward::Layer &out = n.appendLayer(1,a);

		hidden[1].setWeight(n[0][0],7);
		hidden[1].setWeight(n[0][1],-4.7);
		hidden[1].setWeight(n[0][2],-4.7);

		hidden[2].setWeight(n[0][0],2.6);
		hidden[2].setWeight(n[0][1],-6.4);
		hidden[2].setWeight(n[0][2],-6.4);

		out[1].setWeight(hidden[0],-4.5);
		out[1].setWeight(hidden[1],9.6);
		out[1].setWeight(hidden[2],-6.8);


		{
			std::vector<float> ret =n.computeOutput({1,1});
			assert(ret[0] < 0.5);
		}

		{
			std::vector<float> ret =n.computeOutput({0,1});
			assert(ret[0] > 0.5);
		}

		{
			std::vector<float> ret =n.computeOutput({1,0});
			assert(ret[0] > 0.5);
		}

		{
			std::vector<float> ret =n.computeOutput({0,0});
			assert(ret[0] < 0.5);
		}
	}
}