/*********************************************************************
 *
 *  $Id: svn_id $
 *
 *  Declares yFindSpectralChannel(), the high-level API for SpectralChannel 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
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 *
 *  THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
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 *  WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
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 *********************************************************************/

#include "yocto_api.h"
CF_EXTERN_C_BEGIN
NS_ASSUME_NONNULL_BEGIN

@class YSpectralChannel;

//--- (YSpectralChannel globals)
typedef void (*YSpectralChannelValueCallback)(YSpectralChannel *func, NSString *functionValue);
typedef void (*YSpectralChannelTimedReportCallback)(YSpectralChannel *func, YMeasure *measure);
#define Y_RAWCOUNT_INVALID              YAPI_INVALID_INT
#define Y_CHANNELNAME_INVALID           YAPI_INVALID_STRING
#define Y_PEAKWAVELENGTH_INVALID        YAPI_INVALID_INT
//--- (end of YSpectralChannel globals)

//--- (YSpectralChannel class start)
/**
 * YSpectralChannel Class: spectral analysis channel control interface
 *
 * The YSpectralChannel class allows you to read and configure Yoctopuce spectral analysis channels.
 * It inherits from YSensor class the core functions to read measurements,
 * to register callback functions, and to access the autonomous datalogger.
 */
@interface YSpectralChannel : YSensor
//--- (end of YSpectralChannel class start)
{
@protected
//--- (YSpectralChannel attributes declaration)
    int             _rawCount;
    NSString*       _channelName;
    int             _peakWavelength;
    YSpectralChannelValueCallback _valueCallbackSpectralChannel;
    YSpectralChannelTimedReportCallback _timedReportCallbackSpectralChannel;
//--- (end of YSpectralChannel attributes declaration)
}
// Constructor is protected, use yFindSpectralChannel factory function to instantiate
-(id)    initWith:(NSString*) func;

//--- (YSpectralChannel private methods declaration)
// Function-specific method for parsing of JSON output and caching result
-(int)             _parseAttr:(yJsonStateMachine*) j;

//--- (end of YSpectralChannel private methods declaration)
//--- (YSpectralChannel yapiwrapper declaration)
//--- (end of YSpectralChannel yapiwrapper declaration)
//--- (YSpectralChannel public methods declaration)
/**
 * Retrieves the raw spectral intensity value as measured by the sensor, without any scaling or calibration.
 *
 * @return an integer
 *
 * On failure, throws an exception or returns YSpectralChannel.RAWCOUNT_INVALID.
 */
-(int)     get_rawCount;


-(int) rawCount;
/**
 * Returns the target spectral band name.
 *
 * @return a string corresponding to the target spectral band name
 *
 * On failure, throws an exception or returns YSpectralChannel.CHANNELNAME_INVALID.
 */
-(NSString*)     get_channelName;


-(NSString*) channelName;
/**
 * Returns the target spectral band peak wavelength, in nm.
 *
 * @return an integer corresponding to the target spectral band peak wavelength, in nm
 *
 * On failure, throws an exception or returns YSpectralChannel.PEAKWAVELENGTH_INVALID.
 */
-(int)     get_peakWavelength;


-(int) peakWavelength;
/**
 * Retrieves a spectral analysis channel 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 spectral analysis channel is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YSpectralChannel.isOnline() to test if the spectral analysis channel is
 * indeed online at a given time. In case of ambiguity when looking for
 * a spectral analysis channel 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 spectral analysis channel, for instance
 *         MyDevice.spectralChannel1.
 *
 * @return a YSpectralChannel object allowing you to drive the spectral analysis channel.
 */
+(YSpectralChannel*)     FindSpectralChannel:(NSString*)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 nil pointer as argument.
 *
 * @param callback : the callback function to call, or a nil 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
 */
-(int)     registerValueCallback:(YSpectralChannelValueCallback _Nullable)callback;

-(int)     _invokeValueCallback:(NSString*)value;

/**
 * Registers the callback function that is invoked on every periodic timed notification.
 * The callback is 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. To unregister a callback, pass a nil pointer as argument.
 *
 * @param callback : the callback function to call, or a nil pointer. The callback function should take two
 *         arguments: the function object of which the value has changed, and an YMeasure object describing
 *         the new advertised value.
 * @noreturn
 */
-(int)     registerTimedReportCallback:(YSpectralChannelTimedReportCallback _Nullable)callback;

-(int)     _invokeTimedReportCallback:(YMeasure*)value;


/**
 * Continues the enumeration of spectral analysis channels started using yFirstSpectralChannel().
 * Caution: You can't make any assumption about the returned spectral analysis channels order.
 * If you want to find a specific a spectral analysis channel, use SpectralChannel.findSpectralChannel()
 * and a hardwareID or a logical name.
 *
 * @return a pointer to a YSpectralChannel object, corresponding to
 *         a spectral analysis channel currently online, or a nil pointer
 *         if there are no more spectral analysis channels to enumerate.
 */
-(nullable YSpectralChannel*) nextSpectralChannel
NS_SWIFT_NAME(nextSpectralChannel());
/**
 * Starts the enumeration of spectral analysis channels currently accessible.
 * Use the method YSpectralChannel.nextSpectralChannel() to iterate on
 * next spectral analysis channels.
 *
 * @return a pointer to a YSpectralChannel object, corresponding to
 *         the first spectral analysis channel currently online, or a nil pointer
 *         if there are none.
 */
+(nullable YSpectralChannel*) FirstSpectralChannel
NS_SWIFT_NAME(FirstSpectralChannel());
//--- (end of YSpectralChannel public methods declaration)

@end

//--- (YSpectralChannel functions declaration)
/**
 * Retrieves a spectral analysis channel 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 spectral analysis channel is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YSpectralChannel.isOnline() to test if the spectral analysis channel is
 * indeed online at a given time. In case of ambiguity when looking for
 * a spectral analysis channel 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 spectral analysis channel, for instance
 *         MyDevice.spectralChannel1.
 *
 * @return a YSpectralChannel object allowing you to drive the spectral analysis channel.
 */
YSpectralChannel* yFindSpectralChannel(NSString* func);
/**
 * Starts the enumeration of spectral analysis channels currently accessible.
 * Use the method YSpectralChannel.nextSpectralChannel() to iterate on
 * next spectral analysis channels.
 *
 * @return a pointer to a YSpectralChannel object, corresponding to
 *         the first spectral analysis channel currently online, or a nil pointer
 *         if there are none.
 */
YSpectralChannel* yFirstSpectralChannel(void);

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

NS_ASSUME_NONNULL_END
CF_EXTERN_C_END

