/*********************************************************************
 *
 *  $Id: svn_id $
 *
 *  Declares yFindVoltageOutput(), the high-level API for VoltageOutput functions
 *
 *  - - - - - - - - - License information: - - - - - - - - -
 *
 *  Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland.
 *
 *  Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual
 *  non-exclusive license to use, modify, copy and integrate this
 *  file into your software for the sole purpose of interfacing
 *  with Yoctopuce products.
 *
 *  You may reproduce and distribute copies of this file in
 *  source or object form, as long as the sole purpose of this
 *  code is to interface with Yoctopuce products. You must retain
 *  this notice in the distributed source file.
 *
 *  You should refer to Yoctopuce General Terms and Conditions
 *  for additional information regarding your rights and
 *  obligations.
 *
 *  THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
 *  WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
 *  WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
 *  EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
 *  INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA,
 *  COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR
 *  SERVICES, ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT
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 *  BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF
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 *********************************************************************/


#ifndef YOCTO_VOLTAGEOUTPUT_H
#define YOCTO_VOLTAGEOUTPUT_H

#include <cfloat>
#include <cmath>

#include "yocto_api.h"

#ifdef YOCTOLIB_NAMESPACE
namespace YOCTOLIB_NAMESPACE
{
#endif

//--- (YVoltageOutput return codes)
//--- (end of YVoltageOutput return codes)
//--- (YVoltageOutput yapiwrapper)
//--- (end of YVoltageOutput yapiwrapper)
//--- (YVoltageOutput definitions)
class YVoltageOutput; // forward declaration

typedef void (*YVoltageOutputValueCallback)(YVoltageOutput *func, const string& functionValue);
#define Y_CURRENTVOLTAGE_INVALID        (YAPI_INVALID_DOUBLE)
#define Y_VOLTAGETRANSITION_INVALID     (YAPI_INVALID_STRING)
#define Y_VOLTAGEATSTARTUP_INVALID      (YAPI_INVALID_DOUBLE)
//--- (end of YVoltageOutput definitions)

//--- (YVoltageOutput declaration)
/**
 * YVoltageOutput Class: voltage output control interface, available for instance in the Yocto-0-10V-Tx
 *
 * The YVoltageOutput class allows you to drive a voltage output.
 */
class YOCTO_CLASS_EXPORT YVoltageOutput: public YFunction {
#ifdef __BORLANDC__
#pragma option push -w-8022
#endif
//--- (end of YVoltageOutput declaration)
protected:
    //--- (YVoltageOutput attributes)
    // Attributes (function value cache)
    double          _currentVoltage;
    string          _voltageTransition;
    double          _voltageAtStartUp;
    YVoltageOutputValueCallback _valueCallbackVoltageOutput;

    friend YVoltageOutput *yFindVoltageOutput(const string& func);
    friend YVoltageOutput *yFirstVoltageOutput(void);

    // Function-specific method for parsing of JSON output and caching result
    virtual int     _parseAttr(YJSONObject *json_val);

    // Constructor is protected, use yFindVoltageOutput factory function to instantiate
    YVoltageOutput(const string& func);
    //--- (end of YVoltageOutput attributes)

public:
    virtual ~YVoltageOutput();
    //--- (YVoltageOutput accessors declaration)

    static const double CURRENTVOLTAGE_INVALID;
    static const string VOLTAGETRANSITION_INVALID;
    static const double VOLTAGEATSTARTUP_INVALID;

    /**
     * Changes the output voltage, in V. Valid range is from 0 to 10V.
     *
     * @param newval : a floating point number corresponding to the output voltage, in V
     *
     * @return YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    int             set_currentVoltage(double newval);
    inline int      setCurrentVoltage(double newval)
    { return this->set_currentVoltage(newval); }

    /**
     * Returns the output voltage set point, in V.
     *
     * @return a floating point number corresponding to the output voltage set point, in V
     *
     * On failure, throws an exception or returns YVoltageOutput::CURRENTVOLTAGE_INVALID.
     */
    double              get_currentVoltage(void);

    inline double       currentVoltage(void)
    { return this->get_currentVoltage(); }

    string              get_voltageTransition(void);

    inline string       voltageTransition(void)
    { return this->get_voltageTransition(); }

    int             set_voltageTransition(const string& newval);
    inline int      setVoltageTransition(const string& newval)
    { return this->set_voltageTransition(newval); }

    /**
     * Changes the output voltage at device start up. Remember to call the matching
     * module saveToFlash() method, otherwise this call has no effect.
     *
     * @param newval : a floating point number corresponding to the output voltage at device start up
     *
     * @return YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    int             set_voltageAtStartUp(double newval);
    inline int      setVoltageAtStartUp(double newval)
    { return this->set_voltageAtStartUp(newval); }

    /**
     * Returns the selected voltage output at device startup, in V.
     *
     * @return a floating point number corresponding to the selected voltage output at device startup, in V
     *
     * On failure, throws an exception or returns YVoltageOutput::VOLTAGEATSTARTUP_INVALID.
     */
    double              get_voltageAtStartUp(void);

    inline double       voltageAtStartUp(void)
    { return this->get_voltageAtStartUp(); }

    /**
     * Retrieves a voltage output for a given identifier.
     * The identifier can be specified using several formats:
     *
     * - FunctionLogicalName
     * - ModuleSerialNumber.FunctionIdentifier
     * - ModuleSerialNumber.FunctionLogicalName
     * - ModuleLogicalName.FunctionIdentifier
     * - ModuleLogicalName.FunctionLogicalName
     *
     *
     * This function does not require that the voltage output is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method isOnline() to test if the voltage output is
     * indeed online at a given time. In case of ambiguity when looking for
     * a voltage output by logical name, no error is notified: the first instance
     * found is returned. The search is performed first by hardware name,
     * then by logical name.
     *
     * If a call to this object's is_online() method returns FALSE although
     * you are certain that the matching device is plugged, make sure that you did
     * call registerHub() at application initialization time.
     *
     * @param func : a string that uniquely characterizes the voltage output, for instance
     *         TX010V01.voltageOutput1.
     *
     * @return a YVoltageOutput object allowing you to drive the voltage output.
     */
    static YVoltageOutput* FindVoltageOutput(string func);

    /**
     * Registers the callback function that is invoked on every change of advertised value.
     * The callback is then invoked only during the execution of ySleep or yHandleEvents.
     * This provides control over the time when the callback is triggered. For good responsiveness,
     * remember to call one of these two functions periodically. The callback is called once juste after beeing
     * registered, passing the current advertised value  of the function, provided that it is not an empty string.
     * To unregister a callback, pass a NULL pointer as argument.
     *
     * @param callback : the callback function to call, or a NULL pointer. The callback function should take two
     *         arguments: the function object of which the value has changed, and the character string describing
     *         the new advertised value.
     * @noreturn
     */
    virtual int         registerValueCallback(YVoltageOutputValueCallback callback);
    using YFunction::registerValueCallback;

    virtual int         _invokeValueCallback(string value);

    /**
     * Performs a smooth transition of output voltage. Any explicit voltage
     * change cancels any ongoing transition process.
     *
     * @param V_target   : new output voltage value at the end of the transition
     *         (floating-point number, representing the end voltage in V)
     * @param ms_duration : total duration of the transition, in milliseconds
     *
     * @return YAPI::SUCCESS when the call succeeds.
     */
    virtual int         voltageMove(double V_target,int ms_duration);


    inline static YVoltageOutput *Find(string func)
    { return YVoltageOutput::FindVoltageOutput(func); }

    /**
     * Continues the enumeration of voltage outputs started using yFirstVoltageOutput().
     * Caution: You can't make any assumption about the returned voltage outputs order.
     * If you want to find a specific a voltage output, use VoltageOutput.findVoltageOutput()
     * and a hardwareID or a logical name.
     *
     * @return a pointer to a YVoltageOutput object, corresponding to
     *         a voltage output currently online, or a NULL pointer
     *         if there are no more voltage outputs to enumerate.
     */
           YVoltageOutput  *nextVoltageOutput(void);
    inline YVoltageOutput  *next(void)
    { return this->nextVoltageOutput();}

    /**
     * Starts the enumeration of voltage outputs currently accessible.
     * Use the method YVoltageOutput::nextVoltageOutput() to iterate on
     * next voltage outputs.
     *
     * @return a pointer to a YVoltageOutput object, corresponding to
     *         the first voltage output currently online, or a NULL pointer
     *         if there are none.
     */
           static YVoltageOutput *FirstVoltageOutput(void);
    inline static YVoltageOutput *First(void)
    { return YVoltageOutput::FirstVoltageOutput();}
#ifdef __BORLANDC__
#pragma option pop
#endif
    //--- (end of YVoltageOutput accessors declaration)
};

//--- (YVoltageOutput functions declaration)

/**
 * Retrieves a voltage output for a given identifier.
 * The identifier can be specified using several formats:
 *
 * - FunctionLogicalName
 * - ModuleSerialNumber.FunctionIdentifier
 * - ModuleSerialNumber.FunctionLogicalName
 * - ModuleLogicalName.FunctionIdentifier
 * - ModuleLogicalName.FunctionLogicalName
 *
 *
 * This function does not require that the voltage output is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method isOnline() to test if the voltage output is
 * indeed online at a given time. In case of ambiguity when looking for
 * a voltage output by logical name, no error is notified: the first instance
 * found is returned. The search is performed first by hardware name,
 * then by logical name.
 *
 * If a call to this object's is_online() method returns FALSE although
 * you are certain that the matching device is plugged, make sure that you did
 * call registerHub() at application initialization time.
 *
 * @param func : a string that uniquely characterizes the voltage output, for instance
 *         TX010V01.voltageOutput1.
 *
 * @return a YVoltageOutput object allowing you to drive the voltage output.
 */
inline YVoltageOutput *yFindVoltageOutput(const string& func)
{ return YVoltageOutput::FindVoltageOutput(func);}
/**
 * Starts the enumeration of voltage outputs currently accessible.
 * Use the method YVoltageOutput::nextVoltageOutput() to iterate on
 * next voltage outputs.
 *
 * @return a pointer to a YVoltageOutput object, corresponding to
 *         the first voltage output currently online, or a NULL pointer
 *         if there are none.
 */
inline YVoltageOutput *yFirstVoltageOutput(void)
{ return YVoltageOutput::FirstVoltageOutput();}

//--- (end of YVoltageOutput functions declaration)

#ifdef YOCTOLIB_NAMESPACE
// end of namespace definition
}
#endif

#endif
