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/*******************************************************************************
  Copyright(c) 2011 Jasem Mutlaq. All rights reserved.

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public
 License version 2 as published by the Free Software Foundation.

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Library General Public License for more details.

 You should have received a copy of the GNU Library General Public License
 along with this library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 Boston, MA 02110-1301, USA.
*******************************************************************************/

#ifndef INDIDEFAULTDRIVER_H
#define INDIDEFAULTDRIVER_H

#include "basedevice.h"
#include "indidriver.h"
#include "indilogger.h"

#include <memory.h>

/**
 * @brief COMMUNICATION_TAB Where all the properties required to connect/disconnect from a device are located.
 *  Usually such properties may include port number, IP address, or any property necessarily to establish a
 *  connection to the device.
 */
extern const char *COMMUNICATION_TAB;

/**
 * @brief MAIN_CONTROL_TAB Where all the primary controls for the device are located.
 */
extern const char *MAIN_CONTROL_TAB;

/**
 * @brief MOTION_TAB Where all the motion control properties of the device are located.
 */
extern const char *MOTION_TAB;

/**
 * @brief DATETIME_TAB Where all date and time setting properties are located.
 */
extern const char *DATETIME_TAB;

/**
 * @brief SITE_TAB Where all site information setting are located.
 */
extern const char *SITE_TAB;

/**
 * @brief OPTIONS_TAB Where all the driver's options are located. Those may include auxiliary controls, driver
 * metadata, version information..etc.
 */
extern const char *OPTIONS_TAB;

/**
 * @brief FILTER_TAB Where all the properties for filter wheels are located.
 */
extern const char *FILTER_TAB;

/**
 * @brief FOCUS_TAB Where all the properties for focuser are located.
 */
extern const char *FOCUS_TAB;

/**
 * @brief GUIDE_TAB Where all the properties for guiding are located.
 */
extern const char *GUIDE_TAB;

/**
 * @brief ALIGNMENT_TAB Where all the properties for guiding are located.
 */
extern const char *ALIGNMENT_TAB;

/**
 * \class INDI::DefaultDevice
   \brief Class to provide extended functionality for devices in addition
to the functionality provided by INDI::BaseDevice. This class should \e only be subclassed by
drivers directly as it is linked with main(). Virtual drivers cannot employ INDI::DefaultDevice.

   INDI::DefaultDevice provides capability to add Debug, Simulation, and Configuration controls. These controls (switches) are
   defined to the client. Configuration options permit saving and loading of AS-IS property values.

\see <a href='tutorial__four_8h_source.html'>Tutorial Four</a>
\author Jasem Mutlaq
 */
class INDI::DefaultDevice : public INDI::BaseDevice
{

public:       

    DefaultDevice();
    virtual ~DefaultDevice();

    /** \brief Add Debug, Simulation, and Configuration options to the driver */
    void addAuxControls();

    /** \brief Add Debug control to the driver */
    void addDebugControl();

    /** \brief Add Simulation control to the driver */
    void addSimulationControl();

    /** \brief Add Configuration control to the driver */
    void addConfigurationControl();

    /** \brief Set all properties to IDLE state */
    void resetProperties();

    /** \brief Define number vector to client & register it. Alternatively, IDDefNumber can be used but the property will not
               get registered and the driver will not be able to save configuration files.
         \param nvp The number vector property to be defined
    */
    void defineNumber(INumberVectorProperty *nvp);

    /** \brief Define text vector to client & register it. Alternatively, IDDefText can be used but the property will not
               get registered and the driver will not be able to save configuration files.
         \param tvp The text vector property to be defined
    */
    void defineText(ITextVectorProperty *tvp);

    /** \brief Define switch vector to client & register it. Alternatively, IDDefswitch can be used but the property will not
               get registered and the driver will not be able to save configuration files.
         \param svp The switch vector property to be defined
    */
    void defineSwitch(ISwitchVectorProperty *svp);

    /** \brief Define light vector to client & register it. Alternatively, IDDeflight can be used but the property will not
               get registered and the driver will not be able to save configuration files.
         \param lvp The light vector property to be defined
    */
    void defineLight(ILightVectorProperty *lvp);

    /** \brief Define BLOB vector to client & register it. Alternatively, IDDefBLOB can be used but the property will not
               get registered and the driver will not be able to save configuration files.
         \param bvp The BLOB vector property to be defined
    */
    void defineBLOB(IBLOBVectorProperty *bvp);


    /** \brief Delete a property and unregister it. It will also be deleted from all clients.
        \param propertyName name of property to be deleted.
    */
    virtual bool deleteProperty(const char *propertyName);


    /** \brief Set connection switch status in the client.
      \param status If true, the driver will attempt to connect to the device (CONNECT=ON). If false, it will attempt
to disconnect the device.
      \param status True to set CONNECT on, false to set DISCONNECT on.
      \param state State of CONNECTION properti, by default IPS_OK.
      \param msg A message to be sent along with connect/disconnect command, by default NULL.
    */
    virtual void setConnected(bool status, IPState state=IPS_OK, const char *msg = NULL);

    /** \brief Set a timer to call the function TimerHit after ms milliseconds
        \param ms timer duration in milliseconds.
        \return id of the timer to be used with RemoveTimer
   */
    int SetTimer(int ms);

    /** \brief Remove timer added with SetTimer
        \param id ID of the timer as returned from SetTimer
   */
    void RemoveTimer(int id);

    /** \brief Callback function to be called once SetTimer duration elapses. */
    virtual void TimerHit();

    /** \return driver name (executable filename) */
    virtual const char *getDriverName() { return me; }

    /** \brief Set driver version information to be defined in DRIVER_INFO property as vMajor.vMinor
     * \param vMajor major revision number
     * \param vMinor minor revision number
    */
    void setVersion(uint16_t vMajor, uint16_t vMinor) { majorVersion = vMajor; minorVersion = vMinor;}

    /** \return Major driver version number. */
    uint16_t getMajorVersion() { return majorVersion;}

    /** \return Minor driver version number. */
    uint16_t getMinorVersion() { return minorVersion;}

    /** \brief define the driver's properties to the client.
     *  Usually, only a minumum set of properties are defined to the client in this function if the device is in disconnected state.
     *  Those properties should be enough to enable the client to establish a connection to the device. In addition to
     *  CONNECT/DISCONNECT, such properties may include port name, IP address, etc...
     *  You should check if the device is already connected, and if this is true, then you must define the remainder of the
     *  the properties to the client in this function. Otherweise, the remainder of the driver's properties are defined to the
     *  client in updateProperties() function which is called when a client connects/disconnects from a device.
      \param dev name of the device
      \note This function is called by the INDI framework, do not call it directly. See LX200 Generic driver for an example implementation
    */
    virtual void ISGetProperties (const char *dev);

    /** \brief Process the client newSwitch command
      \note This function is called by the INDI framework, do not call it directly.
      \returns True if any property was successfully processed, false otherwise.
    */
    virtual bool ISNewSwitch (const char *dev, const char *name, ISState *states, char *names[], int n);

    /** \brief Process the client newNumber command
      \note This function is called by the INDI framework, do not call it directly.
      \returns True if any property was successfully processed, false otherwise.
    */
    virtual bool ISNewNumber (const char *dev, const char *name, double values[], char *names[], int n) {return false;}

    /** \brief Process the client newSwitch command
      \note This function is called by the INDI framework, do not call it directly.
      \returns True if any property was successfully processed, false otherwise.
    */
    virtual bool ISNewText (const char *dev, const char *name, char *texts[], char *names[], int n) {return false;}

    /** \brief Process the client newBLOB command
      \note This function is called by the INDI framework, do not call it directly.
      \returns True if any property was successfully processed, false otherwise.
    */
    virtual bool ISNewBLOB (const char *dev, const char *name, int sizes[], int blobsizes[], char *blobs[], char *formats[], char *names[], int n) { return false;}

    /** \brief Process a snoop event from INDI server. This function is called when a snooped property is updated in a snooped driver.
      \note This function is called by the INDI framework, do not call it directly.
      \returns True if any property was successfully processed, false otherwise.
    */
    virtual bool ISSnoopDevice (XMLEle *root) { return false;}

    /**
     * @return getInterface Return the interface declared by the driver.
     */
    virtual uint16_t getDriverInterface();

    /**
     * @brief setInterface Set driver interface. By default the driver interface is set to GENERAL_DEVICE. You may send an ORed list of DeviceInterface values.
     * @param value ORed list of DeviceInterface values.
     */
    void setDriverInterface(uint16_t value);

protected:

    // Configuration

    /** \brief Load the last saved configuration file
     *  \param silent if true, don't report any error or notification messages.
     *  \param property Name of property to load configuration for. If NULL, all properties in the configuration file are loaded which is the default behavior.
        \return True if successful, false otherwise.
    */
    virtual bool loadConfig(bool silent=false, const char *property=NULL);

    /** \brief Save the current properties in a configuration file
     *  \param silent if true, don't report any error or notification messages.
        \return True if successful, false otherwise.
    */
    virtual bool saveConfig(bool silent=false);
    virtual bool saveConfigItems(FILE *fp);

    /** \brief Load the default configuration file
        \return True if successful, false otherwise.
    */
    virtual bool loadDefaultConfig();

    // Simulatin & Debug

    /** \brief Toggle driver debug status

      A driver can be more verbose if Debug option is enabled by the client.

      \param enable If true, the Debug option is set to ON.
    */
    void setDebug(bool enable);

    /** \brief Toggle driver simulation status

      A driver can run in simulation mode if Simulation option is enabled by the client.

      \param enable If true, the Simulation option is set to ON.
    */
    void setSimulation(bool enable);

    /** \brief Inform driver that the debug option was triggered.

      This function is called after setDebug is triggered by the client.
      Reimplement this function if your driver needs to take specific action after
      debug is enabled/disabled. Otherwise, you can use isDebug() to
      check if simulation is enabled or disabled.

      \param enable If true, the debug option is set to ON.
    */
    virtual void debugTriggered(bool enable);

    /** \brief Inform driver that the simulation option was triggered.

      This function is called after setSimulation is triggered by the client.
      Reimplement this function if your driver needs to take specific action after
      simulation is enabled/disabled. Otherwise, you can use isSimulation() to
      check if simulation is enabled or disabled.

      \param enable If true, the simulation option is set to ON.
    */
    virtual void simulationTriggered(bool enable);

    /** \return True if Debug is on, False otherwise. */
    bool isDebug();

    /** \return True if Simulation is on, False otherwise. */
    bool isSimulation();

    /** \brief Initilize properties initial state and value. The child class must implement this function.
        \return True if initilization is successful, false otherwise.
    */
    virtual bool initProperties();

    /** \brief updateProperties is called whenever there is a change in the CONNECTION status of the driver.
        This will enable the driver to react to changes of switching ON/OFF a device. For example, a driver
        may only define a set of properties after a device is connected, but not before.
        \return True if update is successful, false otherwise.
    */
    virtual bool updateProperties();

    /** \brief Connect to a device. Child classes must implement this function and perform the connection
        routine in the function.
        \return True if connection to device is successful, false otherwise.
    */
    virtual bool Connect()=0;

    /** \brief Disconnect from a device. Child classes must implement this function and perform the disconnection
        routine in the function.
        \return True if disconnection from a device is successful, false otherwise.
    */
    virtual bool Disconnect()=0;

    /** \return Default name of the device. */
    virtual const char *getDefaultName()=0;

private:

    bool isInit;
    bool pDebug;
    bool pSimulation;    

    uint16_t majorVersion;
    uint16_t minorVersion;
    uint16_t interfaceDescriptor;

    ISwitch DebugS[2];
    ISwitch SimulationS[2];
    ISwitch ConfigProcessS[3];
    ISwitch ConnectionS[2];

    ISwitchVectorProperty DebugSP;
    ISwitchVectorProperty SimulationSP;
    ISwitchVectorProperty ConfigProcessSP;
    ISwitchVectorProperty ConnectionSP;


    IText DriverInfoT[4];
    ITextVectorProperty DriverInfoTP;


};

#endif // INDIDEFAULTDRIVER_H