#ifndef TJD_UI_APP_CALCULATOR_MODEL_H
#define TJD_UI_APP_CALCULATOR_MODEL_H

#include "TjdUiAppCalculatorModel.h"
#include "TjdUiAppCalculatorView.h"
#include "alipay_feature.h"
#include "cmsis_os2.h"
#include <string>

namespace TJD {

class TjdUiAppCalculatorModel
{
public:
    TjdUiAppCalculatorModel();
    ~TjdUiAppCalculatorModel();
    static TjdUiAppCalculatorModel *GetInstance(void);

    void CalculatorReset(void);
    double __atof(char *str);
    void StringClear(void);
    int StringInput(char str);
    int CalculationClear(void);
    int CalculationBack(void);
    double CalculationResult(uint8_t mode);
    int CalculationModeSet(uint8_t mode);
    int DoubleToString(char* str,double num);

private:
    double __calculator_add(double A, double B);
    double __calculator_sub(double A, double B);
    double __calculator_mul(double A, double B);
    double __calculator_div(double A, double B);
};

} // namespace TJD

#endif