#ifndef BSP_Q7S_COMIF_I2COMIF_H_
#define BSP_Q7S_COMIF_I2COMIF_H_

#include <fsfw/objectmanager/SystemObject.h>
#include <fsfw/devicehandlers/DeviceCommunicationIF.h>
#include <bsp_q7s/comIF/cookies/I2cCookie.h>

#include <unordered_map>
#include <vector>

/**
 * @brief 	This is the communication interface for i2c devices connected
 * 			to a system running a linux OS.
 *
 * @author 	J. Meier
 */
class I2cComIF: public DeviceCommunicationIF, public SystemObject {
public:
	I2cComIF(object_id_t objectId);

	virtual ~I2cComIF();

	ReturnValue_t initializeInterface(CookieIF * cookie) override;
	ReturnValue_t sendMessage(CookieIF *cookie,const uint8_t *sendData,
			size_t sendLen) override;
	ReturnValue_t getSendSuccess(CookieIF *cookie) override;
	ReturnValue_t requestReceiveMessage(CookieIF *cookie,
	        size_t requestLen) override;
	ReturnValue_t readReceivedMessage(CookieIF *cookie, uint8_t **buffer,
			size_t *size) override;

private:

	typedef struct I2cInstance {
		int fileDescriptor;
		std::vector<uint8_t> replyBuffer;
		size_t replyLen;
	} I2cInstance_t;

	using I2cDeviceMap = std::unordered_map<address_t, I2cInstance_t>;
	using I2cDeviceMapIter = I2cDeviceMap::iterator;

	/* In this map all i2c devices will be registered with their address and
	 * the appropriate file descriptor will be stored */
	I2cDeviceMap i2cDeviceMap;
	I2cDeviceMapIter i2cDeviceMapIter;
};

#endif /* BSP_Q7S_COMIF_I2COMIF_H_ */