/*********************************************************************
 *
 * $Id: YLightSensor.java 19580 2015-03-04 10:57:18Z seb $
 *
 * Implements FindLightSensor(), the high-level API for LightSensor 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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 *********************************************************************/

package com.yoctopuce.YoctoAPI;
import org.json.JSONException;
import org.json.JSONObject;
import static com.yoctopuce.YoctoAPI.YAPI.SafeYAPI;

//--- (YLightSensor return codes)
//--- (end of YLightSensor return codes)
//--- (YLightSensor class start)
/**
 * YLightSensor Class: LightSensor function interface
 *
 * The Yoctopuce class YLightSensor allows you to read and configure Yoctopuce light
 * sensors. It inherits from YSensor class the core functions to read measurements,
 * register callback functions, access to the autonomous datalogger.
 * This class adds the ability to easily perform a one-point linear calibration
 * to compensate the effect of a glass or filter placed in front of the sensor.
 * For some light sensors with several working modes, this class can select the
 * desired working mode.
 */
 @SuppressWarnings("UnusedDeclaration")
public class YLightSensor extends YSensor
{
//--- (end of YLightSensor class start)
//--- (YLightSensor definitions)
    /**
     * invalid measureType value
     */
    public static final int MEASURETYPE_HUMAN_EYE = 0;
    public static final int MEASURETYPE_WIDE_SPECTRUM = 1;
    public static final int MEASURETYPE_INFRARED = 2;
    public static final int MEASURETYPE_HIGH_RATE = 3;
    public static final int MEASURETYPE_HIGH_ENERGY = 4;
    public static final int MEASURETYPE_INVALID = -1;
    protected int _measureType = MEASURETYPE_INVALID;
    protected UpdateCallback _valueCallbackLightSensor = null;
    protected TimedReportCallback _timedReportCallbackLightSensor = null;

    /**
     * Deprecated UpdateCallback for LightSensor
     */
    public interface UpdateCallback {
        /**
         *
         * @param function      : the function object of which the value has changed
         * @param functionValue : the character string describing the new advertised value
         */
        void yNewValue(YLightSensor function, String functionValue);
    }

    /**
     * TimedReportCallback for LightSensor
     */
    public interface TimedReportCallback {
        /**
         *
         * @param function : the function object of which the value has changed
         * @param measure  : measure
         */
        void timedReportCallback(YLightSensor  function, YMeasure measure);
    }
    //--- (end of YLightSensor definitions)


    /**
     *
     * @param func : functionid
     */
    protected YLightSensor(String func)
    {
        super(func);
        _className = "LightSensor";
        //--- (YLightSensor attributes initialization)
        //--- (end of YLightSensor attributes initialization)
    }

    //--- (YLightSensor implementation)
    @Override
    protected void  _parseAttr(JSONObject json_val) throws JSONException
    {
        if (json_val.has("measureType")) {
            _measureType = json_val.getInt("measureType");
        }
        super._parseAttr(json_val);
    }

    public int set_currentValue(double  newval)  throws YAPI_Exception
    {
        String rest_val;
        rest_val = Long.toString(Math.round(newval * 65536.0));
        _setAttr("currentValue",rest_val);
        return YAPI.SUCCESS;
    }

    public int setCurrentValue(double newval)  throws YAPI_Exception
    {
        return set_currentValue(newval);
    }

    /**
     * Changes the sensor-specific calibration parameter so that the current value
     * matches a desired target (linear scaling).
     *
     * @param calibratedVal : the desired target value.
     *
     * Remember to call the saveToFlash() method of the module if the
     * modification must be kept.
     *
     * @return YAPI.SUCCESS if the call succeeds.
     *
     * @throws YAPI_Exception on error
     */
    public int calibrate(double calibratedVal)  throws YAPI_Exception
    {
        String rest_val;
        rest_val = Long.toString(Math.round(calibratedVal * 65536.0));
        _setAttr("currentValue",rest_val);
        return YAPI.SUCCESS;
    }

    /**
     * Returns the type of light measure.
     *
     *  @return a value among YLightSensor.MEASURETYPE_HUMAN_EYE, YLightSensor.MEASURETYPE_WIDE_SPECTRUM,
     *  YLightSensor.MEASURETYPE_INFRARED, YLightSensor.MEASURETYPE_HIGH_RATE and
     * YLightSensor.MEASURETYPE_HIGH_ENERGY corresponding to the type of light measure
     *
     * @throws YAPI_Exception on error
     */
    public int get_measureType() throws YAPI_Exception
    {
        if (_cacheExpiration <= YAPI.GetTickCount()) {
            if (load(YAPI.SafeYAPI().DefaultCacheValidity) != YAPI.SUCCESS) {
                return MEASURETYPE_INVALID;
            }
        }
        return _measureType;
    }

    /**
     * Returns the type of light measure.
     *
     *  @return a value among Y_MEASURETYPE_HUMAN_EYE, Y_MEASURETYPE_WIDE_SPECTRUM, Y_MEASURETYPE_INFRARED,
     * Y_MEASURETYPE_HIGH_RATE and Y_MEASURETYPE_HIGH_ENERGY corresponding to the type of light measure
     *
     * @throws YAPI_Exception on error
     */
    public int getMeasureType() throws YAPI_Exception
    {
        return get_measureType();
    }

    /**
     * Modify the light sensor type used in the device. The measure can either
     * approximate the response of the human eye, focus on a specific light
     * spectrum, depending on the capabilities of the light-sensitive cell.
     * Remember to call the saveToFlash() method of the module if the
     * modification must be kept.
     *
     *  @param newval : a value among YLightSensor.MEASURETYPE_HUMAN_EYE,
     *  YLightSensor.MEASURETYPE_WIDE_SPECTRUM, YLightSensor.MEASURETYPE_INFRARED,
     * YLightSensor.MEASURETYPE_HIGH_RATE and YLightSensor.MEASURETYPE_HIGH_ENERGY
     *
     * @return YAPI.SUCCESS if the call succeeds.
     *
     * @throws YAPI_Exception on error
     */
    public int set_measureType(int  newval)  throws YAPI_Exception
    {
        String rest_val;
        rest_val = Integer.toString(newval);
        _setAttr("measureType",rest_val);
        return YAPI.SUCCESS;
    }

    /**
     * Modify the light sensor type used in the device. The measure can either
     * approximate the response of the human eye, focus on a specific light
     * spectrum, depending on the capabilities of the light-sensitive cell.
     * Remember to call the saveToFlash() method of the module if the
     * modification must be kept.
     *
     *  @param newval : a value among Y_MEASURETYPE_HUMAN_EYE, Y_MEASURETYPE_WIDE_SPECTRUM,
     * Y_MEASURETYPE_INFRARED, Y_MEASURETYPE_HIGH_RATE and Y_MEASURETYPE_HIGH_ENERGY
     *
     * @return YAPI_SUCCESS if the call succeeds.
     *
     * @throws YAPI_Exception on error
     */
    public int setMeasureType(int newval)  throws YAPI_Exception
    {
        return set_measureType(newval);
    }

    /**
     * Retrieves a light sensor for a given identifier.
     * The identifier can be specified using several formats:
     * <ul>
     * <li>FunctionLogicalName</li>
     * <li>ModuleSerialNumber.FunctionIdentifier</li>
     * <li>ModuleSerialNumber.FunctionLogicalName</li>
     * <li>ModuleLogicalName.FunctionIdentifier</li>
     * <li>ModuleLogicalName.FunctionLogicalName</li>
     * </ul>
     *
     * This function does not require that the light sensor is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method YLightSensor.isOnline() to test if the light sensor is
     * indeed online at a given time. In case of ambiguity when looking for
     * a light 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.
     *
     * @param func : a string that uniquely characterizes the light sensor
     *
     * @return a YLightSensor object allowing you to drive the light sensor.
     */
    public static YLightSensor FindLightSensor(String func)
    {
        YLightSensor obj;
        obj = (YLightSensor) YFunction._FindFromCache("LightSensor", func);
        if (obj == null) {
            obj = new YLightSensor(func);
            YFunction._AddToCache("LightSensor", func, obj);
        }
        return obj;
    }

    /**
     * Registers the callback function that is invoked on every change of advertised value.
     * 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 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.
     *
     */
    public int registerValueCallback(UpdateCallback callback)
    {
        String val;
        if (callback != null) {
            YFunction._UpdateValueCallbackList(this, true);
        } else {
            YFunction._UpdateValueCallbackList(this, false);
        }
        _valueCallbackLightSensor = callback;
        // Immediately invoke value callback with current value
        if (callback != null && isOnline()) {
            val = _advertisedValue;
            if (!(val.equals(""))) {
                _invokeValueCallback(val);
            }
        }
        return 0;
    }

    @Override
    public int _invokeValueCallback(String value)
    {
        if (_valueCallbackLightSensor != null) {
            _valueCallbackLightSensor.yNewValue(this, value);
        } else {
            super._invokeValueCallback(value);
        }
        return 0;
    }

    /**
     * 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 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 an YMeasure object describing
     *         the new advertised value.
     *
     */
    public int registerTimedReportCallback(TimedReportCallback callback)
    {
        if (callback != null) {
            YFunction._UpdateTimedReportCallbackList(this, true);
        } else {
            YFunction._UpdateTimedReportCallbackList(this, false);
        }
        _timedReportCallbackLightSensor = callback;
        return 0;
    }

    @Override
    public int _invokeTimedReportCallback(YMeasure value)
    {
        if (_timedReportCallbackLightSensor != null) {
            _timedReportCallbackLightSensor.timedReportCallback(this, value);
        } else {
            super._invokeTimedReportCallback(value);
        }
        return 0;
    }

    /**
     * Continues the enumeration of light sensors started using yFirstLightSensor().
     *
     * @return a pointer to a YLightSensor object, corresponding to
     *         a light sensor currently online, or a null pointer
     *         if there are no more light sensors to enumerate.
     */
    public  YLightSensor nextLightSensor()
    {
        String next_hwid;
        try {
            String hwid = SafeYAPI().resolveFunction(_className, _func).getHardwareId();
            next_hwid = SafeYAPI().getNextHardwareId(_className, hwid);
        } catch (YAPI_Exception ignored) {
            next_hwid = null;
        }
        if(next_hwid == null) return null;
        return FindLightSensor(next_hwid);
    }

    /**
     * Starts the enumeration of light sensors currently accessible.
     * Use the method YLightSensor.nextLightSensor() to iterate on
     * next light sensors.
     *
     * @return a pointer to a YLightSensor object, corresponding to
     *         the first light sensor currently online, or a null pointer
     *         if there are none.
     */
    public static YLightSensor FirstLightSensor()
    {
        String next_hwid = SafeYAPI().getFirstHardwareId("LightSensor");
        if (next_hwid == null)  return null;
        return FindLightSensor(next_hwid);
    }

    //--- (end of YLightSensor implementation)
}

