#ifndef MLPLibrary_h
#define MLPLibrary_h

#inlcude "Arduino.h"

#define MAX_INPUT_SIZE 10
#define MAX_HIDDEN_SIZE 10
#define MAX_OUTPUT_SIZE 10

class MLPLibrary {
  public:
  MLPLibrary(int inputSize, int hiddenSize, int outputSize, float learningRate);
  
  void initialize();
  void trian(float input[MAX_INPUT_SIZE], float target[MAX_OUTPUT_SIZE]);
  void predict(float input[MAX_INPUT_SIZE], float output[MAX_OUTPUT_SIZE]);

  private:
    int numInputs;
    int numHidden;
    int numOutputs;
    float learningRate;

    float inputLayer[MAX_INPUT_SIZE];
    float hiddenLayer[MAX_HIDDEN_SIZE];
    float outputLayer[MAX_OUTPUT_SIZE];

    float inputHiddenWeights[MAX_INPUT_SIZE][MAX_HIDDEN_SIZE];
    float hiddenOutputWeights[MAX_HIDDEN_SIZE][MAX_OUTPUT_SIZE];

    float hiddenLayerBiases[MAX_HIDDEN_SIZE];
    float outputLayerBiases[MAX_OUTPUT_SIZE];

    float hiddenLayerErrors[MAX_HIDDEN_SIZE];
    float outputLayerErrors[MAX_OUTPUT_SIZE];

    float sigmoid(float x);
};

#endif