# -*- coding: utf-8 -*-
# ********************************************************************
#
#  $Id: svn_id $
#
#  Implements yFindTilt(), the high-level API for Tilt functions
#
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__docformat__ = 'restructuredtext en'
from yocto_api import *


#--- (YTilt class start)
#noinspection PyProtectedMember
class YTilt(YSensor):
    """
    The YSensor class is the parent class for all Yoctopuce sensor types. It can be
    used to read the current value and unit of any sensor, read the min/max
    value, configure autonomous recording frequency and access recorded data.
    It also provides a function to register a callback invoked each time the
    observed value changes, or at a predefined interval. Using this class rather
    than a specific subclass makes it possible to create generic applications
    that work with any Yoctopuce sensor, even those that do not yet exist.
    Note: The YAnButton class is the only analog input which does not inherit
    from YSensor.

    """
    #--- (end of YTilt class start)
    #--- (YTilt return codes)
    #--- (end of YTilt return codes)
    #--- (YTilt dlldef)
    #--- (end of YTilt dlldef)
    #--- (YTilt yapiwrapper)
    #--- (end of YTilt yapiwrapper)
    #--- (YTilt definitions)
    BANDWIDTH_INVALID = YAPI.INVALID_UINT
    AXIS_X = 0
    AXIS_Y = 1
    AXIS_Z = 2
    AXIS_INVALID = -1
    #--- (end of YTilt definitions)

    def __init__(self, func):
        super(YTilt, self).__init__(func)
        self._className = 'Tilt'
        #--- (YTilt attributes)
        self._callback = None
        self._bandwidth = YTilt.BANDWIDTH_INVALID
        self._axis = YTilt.AXIS_INVALID
        #--- (end of YTilt attributes)

    #--- (YTilt implementation)
    def _parseAttr(self, json_val):
        if json_val.has("bandwidth"):
            self._bandwidth = json_val.getInt("bandwidth")
        if json_val.has("axis"):
            self._axis = json_val.getInt("axis")
        super(YTilt, self)._parseAttr(json_val)

    def get_bandwidth(self):
        """
        Returns the measure update frequency, measured in Hz.

        @return an integer corresponding to the measure update frequency, measured in Hz

        On failure, throws an exception or returns YTilt.BANDWIDTH_INVALID.
        """
        # res
        if self._cacheExpiration <= YAPI.GetTickCount():
            if self.load(YAPI._yapiContext.GetCacheValidity()) != YAPI.SUCCESS:
                return YTilt.BANDWIDTH_INVALID
        res = self._bandwidth
        return res

    def set_bandwidth(self, newval):
        """
        Changes the measure update frequency, measured in Hz. When the
        frequency is lower, the device performs averaging.
        Remember to call the saveToFlash()
        method of the module if the modification must be kept.

        @param newval : an integer corresponding to the measure update frequency, measured in Hz

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        rest_val = str(newval)
        return self._setAttr("bandwidth", rest_val)

    def get_axis(self):
        # res
        if self._cacheExpiration <= YAPI.GetTickCount():
            if self.load(YAPI._yapiContext.GetCacheValidity()) != YAPI.SUCCESS:
                return YTilt.AXIS_INVALID
        res = self._axis
        return res

    @staticmethod
    def FindTilt(func):
        """
        Retrieves a tilt 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 tilt sensor is online at the time
        it is invoked. The returned object is nevertheless valid.
        Use the method YTilt.isOnline() to test if the tilt sensor is
        indeed online at a given time. In case of ambiguity when looking for
        a tilt 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 tilt sensor, for instance
                Y3DMK002.tilt1.

        @return a YTilt object allowing you to drive the tilt sensor.
        """
        # obj
        obj = YFunction._FindFromCache("Tilt", func)
        if obj is None:
            obj = YTilt(func)
            YFunction._AddToCache("Tilt", func, obj)
        return obj

    def calibrateToZero(self):
        """
        Performs a zero calibration for the tilt measurement (Yocto-Inclinometer only).
        When this method is invoked, a simple shift (translation)
        is applied so that the current position is reported as a zero angle.
        Be aware that this shift will also affect the measurement boundaries.

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        # currentRawVal
        rawVals = []
        refVals = []
        currentRawVal = self.get_currentRawValue()
        del rawVals[:]
        del refVals[:]
        rawVals.append(currentRawVal)
        refVals.append(0.0)


        return self.calibrateFromPoints(rawVals, refVals)

    def restoreZeroCalibration(self):
        """
        Cancels any previous zero calibration for the tilt measurement (Yocto-Inclinometer only).
        This function restores the factory zero calibration.

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        return self._setAttr("calibrationParam", "0")

    def nextTilt(self):
        """
        Continues the enumeration of tilt sensors started using yFirstTilt().
        Caution: You can't make any assumption about the returned tilt sensors order.
        If you want to find a specific a tilt sensor, use Tilt.findTilt()
        and a hardwareID or a logical name.

        @return a pointer to a YTilt object, corresponding to
                a tilt sensor currently online, or a None pointer
                if there are no more tilt sensors to enumerate.
        """
        hwidRef = YRefParam()
        if YAPI.YISERR(self._nextFunction(hwidRef)):
            return None
        if hwidRef.value == "":
            return None
        return YTilt.FindTilt(hwidRef.value)

#--- (end of YTilt implementation)

#--- (YTilt functions)

    @staticmethod
    def FirstTilt():
        """
        Starts the enumeration of tilt sensors currently accessible.
        Use the method YTilt.nextTilt() to iterate on
        next tilt sensors.

        @return a pointer to a YTilt object, corresponding to
                the first tilt sensor currently online, or a None pointer
                if there are none.
        """
        devRef = YRefParam()
        neededsizeRef = YRefParam()
        serialRef = YRefParam()
        funcIdRef = YRefParam()
        funcNameRef = YRefParam()
        funcValRef = YRefParam()
        errmsgRef = YRefParam()
        size = YAPI.C_INTSIZE
        #noinspection PyTypeChecker,PyCallingNonCallable
        p = (ctypes.c_int * 1)()
        err = YAPI.apiGetFunctionsByClass("Tilt", 0, p, size, neededsizeRef, errmsgRef)

        if YAPI.YISERR(err) or not neededsizeRef.value:
            return None

        if YAPI.YISERR(
                YAPI.yapiGetFunctionInfo(p[0], devRef, serialRef, funcIdRef, funcNameRef, funcValRef, errmsgRef)):
            return None

        return YTilt.FindTilt(serialRef.value + "." + funcIdRef.value)

#--- (end of YTilt functions)
