#ifndef _GPIO_H_
#define _GPIO_H_

#include <unistd.h>
#include <stdint.h>
#include <memory>

class Pin 
{
	public: 
		enum mode
		{
			undefined,
			input, 
			output, 
			analog, 
			alternate
		};
		
		enum state
		{
			floating, 
			pushPull, 
			openDrain 
		};
		
		enum pullUpDown
		{
			none,
			pullUp,
			pullDown
		};

		enum speed
		{
			slow, 
			normal, 
			fast, 
			veryFast
		};
		
		enum interrupt
		{
			disabled,
			enabled 
		};
	
		struct configuration
		{
			mode md; 
			state st;
			pullUpDown pud;
			speed sp;
			interrupt intr; 
		};

		enum errors
		{
			notValidMode,
			notValidOut,
			OutOfRange,
			NotDeclared, 
			NotReachable, 
			NoPullUpDown, 
			NotAnalog, 
			NotDigital, 
			TooFast, 
			Bocked, 
			AlreadyUsed,
			NotGpio
		};

		Pin(); 
		~Pin(); 	
		void setMode(mode mode); 
		void setOutputState(state state); 
		void setPullUpDonw(pullUpDown resistance); 
		void setSpeed(speed speed); 
		void config(mode mode, state state, pullUpDown resistance, speed speed); 
		
		bool read();
		bool toggle();
		void write(bool state);

		void init();
		void deInit();
		
		void hardwareInfo();

	private:
		void throwError(uint16_t line, errors errNo); 	
};

#endif //  _GPIO_H_