#ifndef STATE_h
#define STATE_h

#include "json/single_include/nlohmann/json.hpp"
#include <iostream>
#include <sys/stat.h>

using json = nlohmann::json;
using namespace std;

enum Action {
	NONE,
	LOAD,
	DISPLAY,
	STOP
};

enum Mode {
	RGB,
	BW,
	
	INVERT,
	BW_INVERT,

	RGB_CHANNELS,
	INVERT_CHANNELS
};

class State {
	private:
		Action action = STOP;
		Mode mode = RGB;
		string image;
		vector<uint64_t> exposure = {};
		uint64_t x;
		uint64_t y;
		uint64_t width;
		uint64_t height;
		bool ERROR = false;

		void error();
		bool imageExists(string& image);
		void setAction(json& msgData);
		void setImage(json& msgData);
		void setMode(json& msgData);
		void setExposure(json& msgData);
		void setPosition(json& msgData);

	public :
		State();
		void receiveMessage(string msgString);
		string createMessage(bool success);
		Action getAction () { return action; }
		Mode getMode() { return mode; }
		string getImage () { return image; }
		vector<uint64_t> getExposure() { return exposure; }
		vector<uint64_t> getPosition() { return { x, y, width, height }; }
		bool isError () { return ERROR; }
};

#endif