/*
 * TfAbstractDevice.h
 *
 *  Created on: 12.06.2014
 *      Author: matzman
 */

#ifndef TFABSTRACTDEVICE_H_
#define TFABSTRACTDEVICE_H_

#include <tfcppsimple/TfTypes.h>
#include <tfcppsimple/TfConnection.h>
#include <log4cpp/Category.hh>
#include <cstdint>
#include <string>
#include <map>


namespace tfcppsimple {

class TfConnection;
class TfDevice;


enum class TfDevicePosition : char {
	 //'0' - '8' (Position in Stapel). Für Bricklets: 'a' - 'd' (Position an Brick).
	BRICK0 = '0',
	BRICK1 = '1',
	BRICK2 = '2',
	BRICK3 = '3',
	BRICK4 = '4',
	BRICK5 = '5',
	BRICK6 = '6',
	BRICK7 = '7',
	BRICK8 = '8',

	BRICKLET0 = 'a',
	BRICKLET1 = 'b',
	BRICKLET2 = 'c',
	BRICKLET3 = 'd',
};


enum class TfDeviceIdentifier : uint16_t {
	UNKNOWN = 0,
	UNKNOWN_BRICK = 0,
	UNKNOWN_BRICKLET = 0,
	MASTER = 13,
	LCD20x4  = 212,
	HUMIDITY = 27,
	IO16 = 28,
	TEMPERATURE = 216
};


enum class TfDeviceType : int {
	UNKNOWN = 0,
	BRICK = 1,
	BRICKLET = 2
};

enum class TfDeviceState : int {
	UNKNOWN,
	AVAILABLE,
	CONNECTED,
	DISCONNECTED,
	CONNECTION_LOST
};

struct TfVersion {
	uint8_t _major;
	uint8_t _minor;
	uint8_t _release;
} __attribute__((packed));


class TfDeviceStateListener {
public:
	virtual ~TfDeviceStateListener() {}

	virtual void stateChangeCallback(TfDevice& device, TfDeviceState oldstate, TfDeviceState newstate) {}
	virtual void shutdownCallback(TfDevice& device) {}
};


class TfDevice : public ObservableTemplate<TfDeviceStateListener> {
friend class TfDeviceFactory;
friend class TfConnection;
public:

protected:
	static log4cpp::Category& logger;

	TfConnection& connection;
	std::string uid;
	std::string connected_uid;
	TfDevicePosition position;
	TfVersion hardware_version;
	TfVersion firmware_version;
	uint16_t raw_device_identifier;
	TfDeviceIdentifier device_identifier;
	TfDevice* parent;
	std::map<TfDevicePosition, TfDevice*> children;
	TfDeviceType deviceType;
	TfDeviceState state = TfDeviceState::UNKNOWN;
	bool configuredFlag = false;

	TfDevice(TfConnection& connection,
			std::string uid,
			std::string connected_uid,
			TfDevicePosition position,
			TfVersion hardware_version,
			TfVersion firmware_version,
			uint16_t raw_device_identifier,
			TfDeviceIdentifier device_identifier,
			TfDevice* parent,
			TfDeviceType deviceType
			);

	virtual bool changeDeviceState(TfDeviceState newstate);
	virtual void doConfigureDevice();
	virtual void doReconfigureDevice();
	virtual void doUnconfigureDevice();
	virtual void doConnectionLost();
	virtual void doShutdown();

	void signalEnumerationCallback(TfCallbackEnumerationType enumeration_type);
	void signalConnectedCallback(TfCallbackConnectReason connect_reason);
	void signalDisconnectedCallback(TfCallbackDisconnectReason disconnect_reason);
	void signalShutdown();

public:
	virtual ~TfDevice();

	bool connect();
	bool disconnect();

	const std::string& getConnectedUid() {
		return connected_uid;
	}

	TfDeviceIdentifier getDeviceIdentifier() {
		return device_identifier;
	}

	const TfVersion& getFirmwareVersion() {
		return firmware_version;
	}

	const TfVersion& getHardwareVersion() {
		return hardware_version;
	}

	TfDevicePosition getPosition() {
		return position;
	}

	uint16_t getRawDeviceIdentifier() {
		return raw_device_identifier;
	}

	const std::string& getUid() {
		return uid;
	}

	const std::map<TfDevicePosition, TfDevice*>& getChildren() {
		return children;
	}

	TfDevice* getChild(TfDevicePosition pos) {
		auto ret = children.find(pos);
		return ret == children.end() ? nullptr : ret->second;
	}

	TfDevice* getParent() {
		return parent;
	}

	TfDeviceType getDeviceType() {
		return deviceType;
	}

	TfConnection& getConnection() {
		return connection;
	}

	TfDeviceState getDeviceState() { return state; }

	bool isConfigured() { return configuredFlag; }

	virtual std::string getDeviceName(bool extended = true);
};


} /* namespace tfcppsimple */


#endif /* TFABSTRACTDEVICE_H_ */