/*********************************************************************
 *
 *  $Id: svn_id $
 *
 *  Declares yFindHumidity(), the high-level API for Humidity 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
 *  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,
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 *  COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR
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 *********************************************************************/

#include "yocto_api.h"
CF_EXTERN_C_BEGIN
NS_ASSUME_NONNULL_BEGIN

@class YHumidity;

//--- (YHumidity globals)
typedef void (*YHumidityValueCallback)(YHumidity *func, NSString *functionValue);
typedef void (*YHumidityTimedReportCallback)(YHumidity *func, YMeasure *measure);
#define Y_RELHUM_INVALID                YAPI_INVALID_DOUBLE
#define Y_ABSHUM_INVALID                YAPI_INVALID_DOUBLE
//--- (end of YHumidity globals)

//--- (YHumidity class start)
/**
 * YHumidity Class: humidity sensor control interface, available for instance in the Yocto-CO2-V2, the
 * Yocto-Meteo-V2 or the Yocto-VOC-V3
 *
 * The YHumidity class allows you to read and configure Yoctopuce humidity sensors.
 * It inherits from YSensor class the core functions to read measurements,
 * to register callback functions, and to access the autonomous datalogger.
 */
@interface YHumidity : YSensor
//--- (end of YHumidity class start)
{
@protected
//--- (YHumidity attributes declaration)
    double          _relHum;
    double          _absHum;
    YHumidityValueCallback _valueCallbackHumidity;
    YHumidityTimedReportCallback _timedReportCallbackHumidity;
//--- (end of YHumidity attributes declaration)
}
// Constructor is protected, use yFindHumidity factory function to instantiate
-(id)    initWith:(NSString*) func;

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

//--- (end of YHumidity private methods declaration)
//--- (YHumidity yapiwrapper declaration)
//--- (end of YHumidity yapiwrapper declaration)
//--- (YHumidity public methods declaration)
/**
 * Changes the primary unit for measuring humidity. That unit is a string.
 * If that strings starts with the letter 'g', the primary measured value is the absolute
 * humidity, in g/m3. Otherwise, the primary measured value will be the relative humidity
 * (RH), in per cents.
 *
 * Remember to call the saveToFlash() method of the module if the modification
 * must be kept.
 *
 * @param newval : a string corresponding to the primary unit for measuring humidity
 *
 * @return YAPI.SUCCESS if the call succeeds.
 *
 * On failure, throws an exception or returns a negative error code.
 */
-(int)     set_unit:(NSString*) newval;
-(int)     setUnit:(NSString*) newval;

/**
 * Returns the current relative humidity, in per cents.
 *
 * @return a floating point number corresponding to the current relative humidity, in per cents
 *
 * On failure, throws an exception or returns YHumidity.RELHUM_INVALID.
 */
-(double)     get_relHum;


-(double) relHum;
/**
 * Returns the current absolute humidity, in grams per cubic meter of air.
 *
 * @return a floating point number corresponding to the current absolute humidity, in grams per cubic meter of air
 *
 * On failure, throws an exception or returns YHumidity.ABSHUM_INVALID.
 */
-(double)     get_absHum;


-(double) absHum;
/**
 * Retrieves a humidity sensor 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 humidity sensor is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YHumidity.isOnline() to test if the humidity sensor is
 * indeed online at a given time. In case of ambiguity when looking for
 * a humidity sensor 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 humidity sensor, for instance
 *         YCO2MK02.humidity.
 *
 * @return a YHumidity object allowing you to drive the humidity sensor.
 */
+(YHumidity*)     FindHumidity:(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:(YHumidityValueCallback _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:(YHumidityTimedReportCallback _Nullable)callback;

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


/**
 * Continues the enumeration of humidity sensors started using yFirstHumidity().
 * Caution: You can't make any assumption about the returned humidity sensors order.
 * If you want to find a specific a humidity sensor, use Humidity.findHumidity()
 * and a hardwareID or a logical name.
 *
 * @return a pointer to a YHumidity object, corresponding to
 *         a humidity sensor currently online, or a nil pointer
 *         if there are no more humidity sensors to enumerate.
 */
-(nullable YHumidity*) nextHumidity
NS_SWIFT_NAME(nextHumidity());
/**
 * Starts the enumeration of humidity sensors currently accessible.
 * Use the method YHumidity.nextHumidity() to iterate on
 * next humidity sensors.
 *
 * @return a pointer to a YHumidity object, corresponding to
 *         the first humidity sensor currently online, or a nil pointer
 *         if there are none.
 */
+(nullable YHumidity*) FirstHumidity
NS_SWIFT_NAME(FirstHumidity());
//--- (end of YHumidity public methods declaration)

@end

//--- (YHumidity functions declaration)
/**
 * Retrieves a humidity sensor 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 humidity sensor is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YHumidity.isOnline() to test if the humidity sensor is
 * indeed online at a given time. In case of ambiguity when looking for
 * a humidity sensor 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 humidity sensor, for instance
 *         YCO2MK02.humidity.
 *
 * @return a YHumidity object allowing you to drive the humidity sensor.
 */
YHumidity* yFindHumidity(NSString* func);
/**
 * Starts the enumeration of humidity sensors currently accessible.
 * Use the method YHumidity.nextHumidity() to iterate on
 * next humidity sensors.
 *
 * @return a pointer to a YHumidity object, corresponding to
 *         the first humidity sensor currently online, or a nil pointer
 *         if there are none.
 */
YHumidity* yFirstHumidity(void);

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

NS_ASSUME_NONNULL_END
CF_EXTERN_C_END

