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//Thermostat class
//Napoleon Leoni
//Thermostat with Joystick control input
//Class Thermostat: 
//Has a control loop enable/disable(I will refer to this as Heater on/off), an over-ride enable/disable.
//an object TemperatureRecording (keeps current temperature, max and min since last reset 
//and circular buffer with recorded data)
//Functions to check user input on joystick
//sets interrupt on accelerometer (To be implemented)

#include "mbed.h"
#include "LM75B.h"
#include "temperatureRecorder.h"
#include "joystickAppBoard.h"

#ifndef THERMOSTAT
#define THERMOSTAT
#define DEFAULTHYSTERESYS  5 //degrees F, dead band of controller to prevent excessive turn on/off
#define DEFAULTGRANULARITY 2 //degrees F, increment in temperaure setting per joystick click
#define DEFAULTTEMPSETTING 60 //degrees F, default setting for thermostat
#define DEFAULTMAXTEMPSETTING 96     //degrees F, max temperature setting to avoid user over shooting setting with joystick
#define DEFAULTMINTEMPSETTING 44     //degrees F, min temperature setting to avoid user under shooting setting with joystick
#define DEFAULTTIME 

class thermostat{
    //public members
    public:
    //private members
    private:
        temperatureRecorder *trecord;       //pointer to TemperatureRecordeObject
        joystickAppBoard *inputJoystick;    //pointer to input joystick object
        DigitalOut *actuatorOutput;         //pointer to Digital Output for actuator, this would run the relay for the heater
                                            //temporarily we could use an LED as output so that the heating action is signaled
                                            //by the turning on and off of an LED
        struct tm timeKeeper;               //structure to hold date/time type
        time_t timeInSeconds;               //variable to keep absolute time
        float hysteresisGap, temperatureGranularity, defaultTemperature, maxTemperature, minTemperature;
        bool heaterEnabled;     //This flag corresponds to whether the thermostat control is on
        bool heatingActionOn;   //this flag corresponds to whether the thermostat has turned the heating action (relay) on
    //public methods
    public:
        thermostat();//default constructor
        thermostat(temperatureRecorder *,joystickAppBoard *,DigitalOut *);//regular constructor
        void enableHeater(void);
        void disableHeater(void);
        void checkJoystickInput(void);
        void runThermostatControlCycle(void);
        float getTemperature(void);//Read current temperature
        float getMaxTemperature(void);//read Maximum Temperature
        float getMinTemperature(void);//read Maximum Temperature
        float getTemperatureSetting(void); //read temperature setting
        bool getThermostatStatus(void); //returns true if heaterEnabled, that is thermostat control is on
        void setDay(int,int,int);
        void setTime(int,int,int);
        void getDateandTime(char*,int); //return Date and time as a formatted string in the provided char buffer
    //private methods
    private:
}; //end of thermostat class prototype 
#endif