# -*- coding: utf-8 -*-
# ********************************************************************
#
#  $Id: yocto_spiport_aio.py 71691 2026-02-02 06:59:29Z mvuilleu $
#
#  Asyncio implementation of YSpiPort
#
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"""
Yoctopuce library: Asyncio implementation of YSpiPort
version: PATCH_WITH_VERSION
requires: yocto_api_aio
provides: YSpiPort YSpiSnoopingRecord
"""
from __future__ import annotations

import sys, json

# On MicroPython, code below will be wiped out at compile time
if sys.implementation.name != "micropython":
    # In CPython, enable edit-time type checking, including Final declaration
    from typing import Any, Union, Final
    from collections.abc import Callable, Awaitable
    const = lambda obj: obj
    _IS_MICROPYTHON = False
else:
    # In our micropython VM, common generic types are global built-ins
    # Others such as TypeVar should be avoided when using micropython,
    # as they produce overhead in runtime code
    # Final is translated into const() expressions before compilation
    _IS_MICROPYTHON: Final[bool] = True  # noqa

from .yocto_api_aio import (
    YAPIContext, YAPI, YAPI_Exception, YFunction, HwId, hwid2str,
    xarray, xbytearray, xStringIO
)

# --- (generated code: YSpiSnoopingRecord class start)
# noinspection PyProtectedMember
class YSpiSnoopingRecord:
    # --- (end of generated code: YSpiSnoopingRecord class start)
    if not _IS_MICROPYTHON:
        # --- (generated code: YSpiSnoopingRecord return codes)
        pass
        # --- (end of generated code: YSpiSnoopingRecord return codes)

    # --- (generated code: YSpiSnoopingRecord attributes declaration)
    _tim: int
    _pos: int
    _dir: int
    _msg: str
    # --- (end of generated code: YSpiSnoopingRecord attributes declaration)


    def __init__(self, json_data: str):
        # --- (generated code: YSpiSnoopingRecord constructor)
        self._tim = 0
        self._pos = 0
        self._dir = 0
        self._msg = ''
        # --- (end of generated code: YSpiSnoopingRecord constructor)
        json_val: Any = json.loads(json_data)
        if 't' in json_val:
            self._tim = json_val["t"]
        if 'p' in json_val:
            self._pos = json_val["p"]
        if 'm' in json_val:
            m: str = json_val["m"]
            if m[0] == '<':
                self._dir = 1
            else:
                self._dir = 0
            self._msg = m[1:]

    # --- (generated code: YSpiSnoopingRecord implementation)
    def get_time(self) -> int:
        """
        Returns the elapsed time, in ms, since the beginning of the preceding message.

        @return the elapsed time, in ms, since the beginning of the preceding message.
        """
        return self._tim

    def get_pos(self) -> int:
        """
        Returns the absolute position of the message end.

        @return the absolute position of the message end.
        """
        return self._pos

    def get_direction(self) -> int:
        """
        Returns the message direction (RX=0, TX=1).

        @return the message direction (RX=0, TX=1).
        """
        return self._dir

    def get_message(self) -> str:
        """
        Returns the message content.

        @return the message content.
        """
        return self._msg

    # --- (end of generated code: YSpiSnoopingRecord implementation)


# --- (generated code: YSpiPort class start)
if not _IS_MICROPYTHON:
    # For CPython, use strongly typed callback types
    try:
        YSpiPortValueCallback = Union[Callable[['YSpiPort', str], Any], None]
    except TypeError:
        YSpiPortValueCallback = Union[Callable, Awaitable]

# noinspection PyProtectedMember
class YSpiPort(YFunction):
    """
    The YSpiPort class allows you to fully drive a Yoctopuce SPI port.
    It can be used to send and receive data, and to configure communication
    parameters (baud rate, bit count, parity, flow control and protocol).
    Note that Yoctopuce SPI ports are not exposed as virtual COM ports.
    They are meant to be used in the same way as all Yoctopuce devices.

    """
    # --- (end of generated code: YSpiPort class start)
    if not _IS_MICROPYTHON:
        # --- (generated code: YSpiPort return codes)
        RXCOUNT_INVALID: Final[int] = YAPI.INVALID_UINT
        TXCOUNT_INVALID: Final[int] = YAPI.INVALID_UINT
        ERRCOUNT_INVALID: Final[int] = YAPI.INVALID_UINT
        RXMSGCOUNT_INVALID: Final[int] = YAPI.INVALID_UINT
        TXMSGCOUNT_INVALID: Final[int] = YAPI.INVALID_UINT
        LASTMSG_INVALID: Final[str] = YAPI.INVALID_STRING
        CURRENTJOB_INVALID: Final[str] = YAPI.INVALID_STRING
        STARTUPJOB_INVALID: Final[str] = YAPI.INVALID_STRING
        JOBMAXTASK_INVALID: Final[int] = YAPI.INVALID_UINT
        JOBMAXSIZE_INVALID: Final[int] = YAPI.INVALID_UINT
        COMMAND_INVALID: Final[str] = YAPI.INVALID_STRING
        PROTOCOL_INVALID: Final[str] = YAPI.INVALID_STRING
        SPIMODE_INVALID: Final[str] = YAPI.INVALID_STRING
        VOLTAGELEVEL_OFF: Final[int] = 0
        VOLTAGELEVEL_TTL3V: Final[int] = 1
        VOLTAGELEVEL_TTL3VR: Final[int] = 2
        VOLTAGELEVEL_TTL5V: Final[int] = 3
        VOLTAGELEVEL_TTL5VR: Final[int] = 4
        VOLTAGELEVEL_RS232: Final[int] = 5
        VOLTAGELEVEL_RS485: Final[int] = 6
        VOLTAGELEVEL_TTL1V8: Final[int] = 7
        VOLTAGELEVEL_SDI12: Final[int] = 8
        VOLTAGELEVEL_INVALID: Final[int] = -1
        SSPOLARITY_ACTIVE_LOW: Final[int] = 0
        SSPOLARITY_ACTIVE_HIGH: Final[int] = 1
        SSPOLARITY_INVALID: Final[int] = -1
        SHIFTSAMPLING_OFF: Final[int] = 0
        SHIFTSAMPLING_ON: Final[int] = 1
        SHIFTSAMPLING_INVALID: Final[int] = -1
        # --- (end of generated code: YSpiPort return codes)

    # --- (generated code: YSpiPort attributes declaration)
    _valueCallback: YSpiPortValueCallback
    _rxptr: int
    _rxbuff: xarray
    _rxbuffptr: int
    _eventPos: int
    # --- (end of generated code: YSpiPort attributes declaration)


    def __init__(self, yctx: YAPIContext, func: str):
        super().__init__(yctx, 'SpiPort', func)
        # --- (generated code: YSpiPort constructor)
        self._rxptr = 0
        self._rxbuff = xbytearray(0)
        self._rxbuffptr = 0
        self._eventPos = 0
        # --- (end of generated code: YSpiPort constructor)

    # --- (generated code: YSpiPort implementation)
    @classmethod
    def FindSpiPort(cls, func: str) -> YSpiPort:
        """
        Retrieves an SPI port 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 SPI port is online at the time
        it is invoked. The returned object is nevertheless valid.
        Use the method YSpiPort.isOnline() to test if the SPI port is
        indeed online at a given time. In case of ambiguity when looking for
        an SPI port 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 SPI port, for instance
                YSPIMK01.spiPort.

        @return a YSpiPort object allowing you to drive the SPI port.
        """
        return cls.FindSpiPortInContext(YAPI, func)

    @classmethod
    def FindSpiPortInContext(cls, yctx: YAPIContext, func: str) -> YSpiPort:
        """
        Retrieves an SPI port for a given identifier in a YAPI context.
        The identifier can be specified using several formats:

        - FunctionLogicalName
        - ModuleSerialNumber.FunctionIdentifier
        - ModuleSerialNumber.FunctionLogicalName
        - ModuleLogicalName.FunctionIdentifier
        - ModuleLogicalName.FunctionLogicalName


        This function does not require that the SPI port is online at the time
        it is invoked. The returned object is nevertheless valid.
        Use the method YSpiPort.isOnline() to test if the SPI port is
        indeed online at a given time. In case of ambiguity when looking for
        an SPI port 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 yctx : a YAPI context
        @param func : a string that uniquely characterizes the SPI port, for instance
                YSPIMK01.spiPort.

        @return a YSpiPort object allowing you to drive the SPI port.
        """
        obj: Union[YSpiPort, None] = yctx._findInCache('SpiPort', func)
        if obj:
            return obj
        return YSpiPort(yctx, func)

    @classmethod
    def FirstSpiPort(cls) -> Union[YSpiPort, None]:
        """
        Starts the enumeration of SPI ports currently accessible.
        Use the method YSpiPort.nextSpiPort() to iterate on
        next SPI ports.

        @return a pointer to a YSpiPort object, corresponding to
                the first SPI port currently online, or a None pointer
                if there are none.
        """
        return cls.FirstSpiPortInContext(YAPI)

    @classmethod
    def FirstSpiPortInContext(cls, yctx: YAPIContext) -> Union[YSpiPort, None]:
        """
        Starts the enumeration of SPI ports currently accessible.
        Use the method YSpiPort.nextSpiPort() to iterate on
        next SPI ports.

        @param yctx : a YAPI context.

        @return a pointer to a YSpiPort object, corresponding to
                the first SPI port currently online, or a None pointer
                if there are none.
        """
        hwid: Union[HwId, None] = yctx._firstHwId('SpiPort')
        if hwid:
            return cls.FindSpiPortInContext(yctx, hwid2str(hwid))
        return None

    def nextSpiPort(self) -> Union[YSpiPort, None]:
        """
        Continues the enumeration of SPI ports started using yFirstSpiPort().
        Caution: You can't make any assumption about the returned SPI ports order.
        If you want to find a specific an SPI port, use SpiPort.findSpiPort()
        and a hardwareID or a logical name.

        @return a pointer to a YSpiPort object, corresponding to
                an SPI port currently online, or a None pointer
                if there are no more SPI ports to enumerate.
        """
        next_hwid: Union[HwId, None] = None
        try:
            next_hwid = self._yapi._nextHwId('SpiPort', self.get_hwId())
        except YAPI_Exception:
            pass
        if next_hwid:
            return self.FindSpiPortInContext(self._yapi, hwid2str(next_hwid))
        return None

    async def get_rxCount(self) -> int:
        """
        Returns the total number of bytes received since last reset.

        @return an integer corresponding to the total number of bytes received since last reset

        On failure, throws an exception or returns YSpiPort.RXCOUNT_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("rxCount")
        if json_val is None:
            return YSpiPort.RXCOUNT_INVALID
        return json_val

    async def get_txCount(self) -> int:
        """
        Returns the total number of bytes transmitted since last reset.

        @return an integer corresponding to the total number of bytes transmitted since last reset

        On failure, throws an exception or returns YSpiPort.TXCOUNT_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("txCount")
        if json_val is None:
            return YSpiPort.TXCOUNT_INVALID
        return json_val

    async def get_errCount(self) -> int:
        """
        Returns the total number of communication errors detected since last reset.

        @return an integer corresponding to the total number of communication errors detected since last reset

        On failure, throws an exception or returns YSpiPort.ERRCOUNT_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("errCount")
        if json_val is None:
            return YSpiPort.ERRCOUNT_INVALID
        return json_val

    async def get_rxMsgCount(self) -> int:
        """
        Returns the total number of messages received since last reset.

        @return an integer corresponding to the total number of messages received since last reset

        On failure, throws an exception or returns YSpiPort.RXMSGCOUNT_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("rxMsgCount")
        if json_val is None:
            return YSpiPort.RXMSGCOUNT_INVALID
        return json_val

    async def get_txMsgCount(self) -> int:
        """
        Returns the total number of messages send since last reset.

        @return an integer corresponding to the total number of messages send since last reset

        On failure, throws an exception or returns YSpiPort.TXMSGCOUNT_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("txMsgCount")
        if json_val is None:
            return YSpiPort.TXMSGCOUNT_INVALID
        return json_val

    async def get_lastMsg(self) -> str:
        """
        Returns the latest message fully received (for Line and Frame protocols).

        @return a string corresponding to the latest message fully received (for Line and Frame protocols)

        On failure, throws an exception or returns YSpiPort.LASTMSG_INVALID.
        """
        json_val: Union[str, None] = await self._fromCache("lastMsg")
        if json_val is None:
            return YSpiPort.LASTMSG_INVALID
        return json_val

    async def get_currentJob(self) -> str:
        """
        Returns the name of the job file currently in use.

        @return a string corresponding to the name of the job file currently in use

        On failure, throws an exception or returns YSpiPort.CURRENTJOB_INVALID.
        """
        json_val: Union[str, None] = await self._fromCache("currentJob")
        if json_val is None:
            return YSpiPort.CURRENTJOB_INVALID
        return json_val

    async def set_currentJob(self, newval: str) -> int:
        """
        Selects a job file to run immediately. If an empty string is
        given as argument, stops running current job file.

        @param newval : a string

        @return YAPI.SUCCESS if the call succeeds.

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

    async def get_startupJob(self) -> str:
        """
        Returns the job file to use when the device is powered on.

        @return a string corresponding to the job file to use when the device is powered on

        On failure, throws an exception or returns YSpiPort.STARTUPJOB_INVALID.
        """
        json_val: Union[str, None] = await self._fromCache("startupJob")
        if json_val is None:
            return YSpiPort.STARTUPJOB_INVALID
        return json_val

    async def set_startupJob(self, newval: str) -> int:
        """
        Changes the job to use when the device is powered on.
        Remember to call the saveToFlash() method of the module if the
        modification must be kept.

        @param newval : a string corresponding to the job to use when the device is powered on

        @return YAPI.SUCCESS if the call succeeds.

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

    async def get_jobMaxTask(self) -> int:
        """
        Returns the maximum number of tasks in a job that the device can handle.

        @return an integer corresponding to the maximum number of tasks in a job that the device can handle

        On failure, throws an exception or returns YSpiPort.JOBMAXTASK_INVALID.
        """
        json_val: Union[int, None] = await self._lazyCache("jobMaxTask")
        if json_val is None:
            return YSpiPort.JOBMAXTASK_INVALID
        return json_val

    async def get_jobMaxSize(self) -> int:
        """
        Returns maximum size allowed for job files.

        @return an integer corresponding to maximum size allowed for job files

        On failure, throws an exception or returns YSpiPort.JOBMAXSIZE_INVALID.
        """
        json_val: Union[int, None] = await self._lazyCache("jobMaxSize")
        if json_val is None:
            return YSpiPort.JOBMAXSIZE_INVALID
        return json_val

    async def get_command(self) -> str:
        json_val: Union[str, None] = await self._fromCache("command")
        if json_val is None:
            return YSpiPort.COMMAND_INVALID
        return json_val

    async def set_command(self, newval: str) -> int:
        rest_val = newval
        return await self._setAttr("command", rest_val)

    async def get_protocol(self) -> str:
        """
        Returns the type of protocol used over the serial line, as a string.
        Possible values are "Line" for ASCII messages separated by CR and/or LF,
        "Frame:[timeout]ms" for binary messages separated by a delay time,
        "Char" for a continuous ASCII stream or
        "Byte" for a continuous binary stream.

        @return a string corresponding to the type of protocol used over the serial line, as a string

        On failure, throws an exception or returns YSpiPort.PROTOCOL_INVALID.
        """
        json_val: Union[str, None] = await self._fromCache("protocol")
        if json_val is None:
            return YSpiPort.PROTOCOL_INVALID
        return json_val

    async def set_protocol(self, newval: str) -> int:
        """
        Changes the type of protocol used over the serial line.
        Possible values are "Line" for ASCII messages separated by CR and/or LF,
        "Frame:[timeout]ms" for binary messages separated by a delay time,
        "Char" for a continuous ASCII stream or
        "Byte" for a continuous binary stream.
        The suffix "/[wait]ms" can be added to reduce the transmit rate so that there
        is always at lest the specified number of milliseconds between each bytes sent.
        Remember to call the saveToFlash() method of the module if the
        modification must be kept.

        @param newval : a string corresponding to the type of protocol used over the serial line

        @return YAPI.SUCCESS if the call succeeds.

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

    async def get_voltageLevel(self) -> int:
        """
        Returns the voltage level used on the serial line.

        @return a value among YSpiPort.VOLTAGELEVEL_OFF, YSpiPort.VOLTAGELEVEL_TTL3V,
        YSpiPort.VOLTAGELEVEL_TTL3VR, YSpiPort.VOLTAGELEVEL_TTL5V, YSpiPort.VOLTAGELEVEL_TTL5VR,
        YSpiPort.VOLTAGELEVEL_RS232, YSpiPort.VOLTAGELEVEL_RS485, YSpiPort.VOLTAGELEVEL_TTL1V8 and
        YSpiPort.VOLTAGELEVEL_SDI12 corresponding to the voltage level used on the serial line

        On failure, throws an exception or returns YSpiPort.VOLTAGELEVEL_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("voltageLevel")
        if json_val is None:
            return YSpiPort.VOLTAGELEVEL_INVALID
        return json_val

    async def set_voltageLevel(self, newval: int) -> int:
        """
        Changes the voltage type used on the serial line. Valid
        values  will depend on the Yoctopuce device model featuring
        the serial port feature.  Check your device documentation
        to find out which values are valid for that specific model.
        Trying to set an invalid value will have no effect.
        Remember to call the saveToFlash() method of the module if the
        modification must be kept.

        @param newval : a value among YSpiPort.VOLTAGELEVEL_OFF, YSpiPort.VOLTAGELEVEL_TTL3V,
        YSpiPort.VOLTAGELEVEL_TTL3VR, YSpiPort.VOLTAGELEVEL_TTL5V, YSpiPort.VOLTAGELEVEL_TTL5VR,
        YSpiPort.VOLTAGELEVEL_RS232, YSpiPort.VOLTAGELEVEL_RS485, YSpiPort.VOLTAGELEVEL_TTL1V8 and
        YSpiPort.VOLTAGELEVEL_SDI12 corresponding to the voltage type used on the serial line

        @return YAPI.SUCCESS if the call succeeds.

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

    async def get_spiMode(self) -> str:
        """
        Returns the SPI port communication parameters, as a string such as
        "125000,0,msb". The string includes the baud rate, the SPI mode (between
        0 and 3) and the bit order.

        @return a string corresponding to the SPI port communication parameters, as a string such as
                "125000,0,msb"

        On failure, throws an exception or returns YSpiPort.SPIMODE_INVALID.
        """
        json_val: Union[str, None] = await self._fromCache("spiMode")
        if json_val is None:
            return YSpiPort.SPIMODE_INVALID
        return json_val

    async def set_spiMode(self, newval: str) -> int:
        """
        Changes the SPI port communication parameters, with a string such as
        "125000,0,msb". The string includes the baud rate, the SPI mode (between
        0 and 3) and the bit order.
        Remember to call the saveToFlash() method of the module if the
        modification must be kept.

        @param newval : a string corresponding to the SPI port communication parameters, with a string such as
                "125000,0,msb"

        @return YAPI.SUCCESS if the call succeeds.

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

    async def get_ssPolarity(self) -> int:
        """
        Returns the SS line polarity.

        @return either YSpiPort.SSPOLARITY_ACTIVE_LOW or YSpiPort.SSPOLARITY_ACTIVE_HIGH, according to the
        SS line polarity

        On failure, throws an exception or returns YSpiPort.SSPOLARITY_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("ssPolarity")
        if json_val is None:
            return YSpiPort.SSPOLARITY_INVALID
        return json_val

    async def set_ssPolarity(self, newval: int) -> int:
        """
        Changes the SS line polarity.
        Remember to call the saveToFlash() method of the module if the
        modification must be kept.

        @param newval : either YSpiPort.SSPOLARITY_ACTIVE_LOW or YSpiPort.SSPOLARITY_ACTIVE_HIGH, according
        to the SS line polarity

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        rest_val = "1" if newval > 0 else "0"
        return await self._setAttr("ssPolarity", rest_val)

    async def get_shiftSampling(self) -> int:
        """
        Returns true when the SDI line phase is shifted with regards to the SDO line.

        @return either YSpiPort.SHIFTSAMPLING_OFF or YSpiPort.SHIFTSAMPLING_ON, according to true when the
        SDI line phase is shifted with regards to the SDO line

        On failure, throws an exception or returns YSpiPort.SHIFTSAMPLING_INVALID.
        """
        json_val: Union[int, None] = await self._fromCache("shiftSampling")
        if json_val is None:
            return YSpiPort.SHIFTSAMPLING_INVALID
        return json_val

    async def set_shiftSampling(self, newval: int) -> int:
        """
        Changes the SDI line sampling shift. When disabled, SDI line is
        sampled in the middle of data output time. When enabled, SDI line is
        samples at the end of data output time.
        Remember to call the saveToFlash() method of the module if the
        modification must be kept.

        @param newval : either YSpiPort.SHIFTSAMPLING_OFF or YSpiPort.SHIFTSAMPLING_ON, according to the
        SDI line sampling shift

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        rest_val = "1" if newval > 0 else "0"
        return await self._setAttr("shiftSampling", rest_val)

    if not _IS_MICROPYTHON:
        async def registerValueCallback(self, callback: YSpiPortValueCallback) -> int:
            """
            Registers the callback function that is invoked on every change of advertised value.
            The callback is called once when it is registered, passing the current advertised value
            of the function, provided that it is not an empty string.
            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. To unregister a callback, pass a None pointer as argument.

            @param callback : the callback function to call, or a None 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
            """
            return await super().registerValueCallback(callback)

    async def sendCommand(self, text: str) -> int:
        return await self.set_command(text)

    async def readLine(self) -> str:
        """
        Reads a single line (or message) from the receive buffer, starting at current stream position.
        This function is intended to be used when the serial port is configured for a message protocol,
        such as 'Line' mode or frame protocols.

        If data at current stream position is not available anymore in the receive buffer,
        the function returns the oldest available line and moves the stream position just after.
        If no new full line is received, the function returns an empty line.

        @return a string with a single line of text

        On failure, throws an exception or returns a negative error code.
        """
        url: str
        msgbin: xarray
        msgarr: list[xarray] = []
        msglen: int
        res: str

        url = "rxmsg.json?pos=%d&len=1&maxw=1" % self._rxptr
        msgbin = await self._download(url)
        msgarr = self._json_get_array(msgbin)
        msglen = len(msgarr)
        if msglen == 0:
            return ""
        # last element of array is the new position
        msglen = msglen - 1
        self._rxptr = self._decode_json_int(msgarr[msglen])
        if msglen == 0:
            return ""
        res = self._json_get_string(msgarr[0])
        return res

    async def readMessages(self, pattern: str, maxWait: int) -> list[str]:
        """
        Searches for incoming messages in the serial port receive buffer matching a given pattern,
        starting at current position. This function will only compare and return printable characters
        in the message strings. Binary protocols are handled as hexadecimal strings.

        The search returns all messages matching the expression provided as argument in the buffer.
        If no matching message is found, the search waits for one up to the specified maximum timeout
        (in milliseconds).

        @param pattern : a limited regular expression describing the expected message format,
                or an empty string if all messages should be returned (no filtering).
                When using binary protocols, the format applies to the hexadecimal
                representation of the message.
        @param maxWait : the maximum number of milliseconds to wait for a message if none is found
                in the receive buffer.

        @return an array of strings containing the messages found, if any.
                Binary messages are converted to hexadecimal representation.

        On failure, throws an exception or returns an empty array.
        """
        url: str
        msgbin: xarray
        msgarr: list[xarray] = []
        msglen: int
        res: list[str] = []
        idx: int

        url = "rxmsg.json?pos=%d&maxw=%d&pat=%s" % (self._rxptr, maxWait, pattern)
        msgbin = await self._download(url)
        msgarr = self._json_get_array(msgbin)
        msglen = len(msgarr)
        if msglen == 0:
            return res
        # last element of array is the new position
        msglen = msglen - 1
        self._rxptr = self._decode_json_int(msgarr[msglen])
        idx = 0

        while idx < msglen:
            res.append(self._json_get_string(msgarr[idx]))
            idx = idx + 1

        return res

    async def read_seek(self, absPos: int) -> int:
        """
        Changes the current internal stream position to the specified value. This function
        does not affect the device, it only changes the value stored in the API object
        for the next read operations.

        @param absPos : the absolute position index for next read operations.

        @return nothing.
        """
        self._rxptr = absPos
        return YAPI.SUCCESS

    async def read_tell(self) -> int:
        """
        Returns the current absolute stream position pointer of the API object.

        @return the absolute position index for next read operations.
        """
        return self._rxptr

    async def read_avail(self) -> int:
        """
        Returns the number of bytes available to read in the input buffer starting from the
        current absolute stream position pointer of the API object.

        @return the number of bytes available to read
        """
        availPosStr: str
        atPos: int
        res: int
        databin: xarray

        databin = await self._download("rxcnt.bin?pos=%d" % self._rxptr)
        availPosStr = databin.decode('latin-1')
        atPos = availPosStr.find("@")
        res = YAPI._atoi(availPosStr[0: 0 + atPos])
        return res

    async def end_tell(self) -> int:
        availPosStr: str
        atPos: int
        res: int
        databin: xarray

        databin = await self._download("rxcnt.bin?pos=%d" % self._rxptr)
        availPosStr = databin.decode('latin-1')
        atPos = availPosStr.find("@")
        res = YAPI._atoi(availPosStr[atPos+1: atPos+1 + len(availPosStr)-atPos-1])
        return res

    async def queryLine(self, query: str, maxWait: int) -> str:
        """
        Sends a text line query to the serial port, and reads the reply, if any.
        This function is intended to be used when the serial port is configured for 'Line' protocol.

        @param query : the line query to send (without CR/LF)
        @param maxWait : the maximum number of milliseconds to wait for a reply.

        @return the next text line received after sending the text query, as a string.
                Additional lines can be obtained by calling readLine or readMessages.

        On failure, throws an exception or returns an empty string.
        """
        prevpos: int
        url: str
        msgbin: xarray
        msgarr: list[xarray] = []
        msglen: int
        res: str
        if len(query) <= 80:
            # fast query
            url = "rxmsg.json?len=1&maxw=%d&cmd=!%s" % (maxWait, self._escapeAttr(query))
        else:
            # long query
            prevpos = await self.end_tell()
            await self._upload("txdata", xbytearray(query + "\r\n", 'latin-1'))
            url = "rxmsg.json?len=1&maxw=%d&pos=%d" % (maxWait, prevpos)

        msgbin = await self._download(url)
        msgarr = self._json_get_array(msgbin)
        msglen = len(msgarr)
        if msglen == 0:
            return ""
        # last element of array is the new position
        msglen = msglen - 1
        self._rxptr = self._decode_json_int(msgarr[msglen])
        if msglen == 0:
            return ""
        res = self._json_get_string(msgarr[0])
        return res

    async def queryHex(self, hexString: str, maxWait: int) -> str:
        """
        Sends a binary message to the serial port, and reads the reply, if any.
        This function is intended to be used when the serial port is configured for
        Frame-based protocol.

        @param hexString : the message to send, coded in hexadecimal
        @param maxWait : the maximum number of milliseconds to wait for a reply.

        @return the next frame received after sending the message, as a hex string.
                Additional frames can be obtained by calling readHex or readMessages.

        On failure, throws an exception or returns an empty string.
        """
        prevpos: int
        url: str
        msgbin: xarray
        msgarr: list[xarray] = []
        msglen: int
        res: str
        if len(hexString) <= 80:
            # fast query
            url = "rxmsg.json?len=1&maxw=%d&cmd=$%s" % (maxWait, hexString)
        else:
            # long query
            prevpos = await self.end_tell()
            await self._upload("txdata", YAPI._hexStrToBin(hexString))
            url = "rxmsg.json?len=1&maxw=%d&pos=%d" % (maxWait, prevpos)

        msgbin = await self._download(url)
        msgarr = self._json_get_array(msgbin)
        msglen = len(msgarr)
        if msglen == 0:
            return ""
        # last element of array is the new position
        msglen = msglen - 1
        self._rxptr = self._decode_json_int(msgarr[msglen])
        if msglen == 0:
            return ""
        res = self._json_get_string(msgarr[0])
        return res

    async def uploadJob(self, jobfile: str, jsonDef: str) -> int:
        """
        Saves the job definition string (JSON data) into a job file.
        The job file can be later enabled using selectJob().

        @param jobfile : name of the job file to save on the device filesystem
        @param jsonDef : a string containing a JSON definition of the job

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        await self._upload(jobfile, xbytearray(jsonDef, 'latin-1'))
        return YAPI.SUCCESS

    async def selectJob(self, jobfile: str) -> int:
        """
        Load and start processing the specified job file. The file must have
        been previously created using the user interface or uploaded on the
        device filesystem using the uploadJob() function.

        @param jobfile : name of the job file (on the device filesystem)

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        return await self.set_currentJob(jobfile)

    async def reset(self) -> int:
        """
        Clears the serial port buffer and resets counters to zero.

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        self._eventPos = 0
        self._rxptr = 0
        self._rxbuffptr = 0
        self._rxbuff = xbytearray(0)

        return await self.sendCommand("Z")

    async def writeByte(self, code: int) -> int:
        """
        Sends a single byte to the serial port.

        @param code : the byte to send

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        return await self.sendCommand("$%02X" % code)

    async def writeStr(self, text: str) -> int:
        """
        Sends an ASCII string to the serial port, as is.

        @param text : the text string to send

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        idx: int
        ch: int
        buff = xbytearray(text, 'latin-1')
        bufflen = len(buff)
        if bufflen < 100:
            # if string is pure text, we can send it as a simple command (faster)
            ch = 0x20
            idx = 0
            while (idx < bufflen) and(ch != 0):
                ch = buff[idx]
                if (ch >= 0x20) and (ch < 0x7f):
                    idx = idx + 1
                else:
                    ch = 0
            if idx >= bufflen:
                return await self.sendCommand("+%s" % text)
        # send string using file upload
        return await self._upload("txdata", buff)

    async def writeBin(self, buff: xarray) -> int:
        """
        Sends a binary buffer to the serial port, as is.

        @param buff : the binary buffer to send

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        return await self._upload("txdata", buff)

    async def writeArray(self, byteList: list[int]) -> int:
        """
        Sends a byte sequence (provided as a list of bytes) to the serial port.

        @param byteList : a list of byte codes

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        idx: int
        hexb: int
        res: int
        bufflen = len(byteList)
        buff = xbytearray(bufflen)
        idx = 0
        while idx < bufflen:
            hexb = byteList[idx]
            buff[idx] = hexb
            idx = idx + 1

        res = await self._upload("txdata", buff)
        return res

    async def writeHex(self, hexString: str) -> int:
        """
        Sends a byte sequence (provided as a hexadecimal string) to the serial port.

        @param hexString : a string of hexadecimal byte codes

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        idx: int
        hexb: int
        res: int
        bufflen = len(hexString)
        if bufflen < 100:
            return await self.sendCommand("$%s" % hexString)
        bufflen = (bufflen >> 1)
        buff = xbytearray(bufflen)
        idx = 0
        while idx < bufflen:
            hexb = int(hexString[2 * idx: 2 * idx + 2], 16)
            buff[idx] = hexb
            idx = idx + 1

        res = await self._upload("txdata", buff)
        return res

    async def writeLine(self, text: str) -> int:
        """
        Sends an ASCII string to the serial port, followed by a line break (CR LF).

        @param text : the text string to send

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        idx: int
        ch: int
        buff = xbytearray("%s\r\n" % text, 'latin-1')
        bufflen = len(buff)-2
        if bufflen < 100:
            # if string is pure text, we can send it as a simple command (faster)
            ch = 0x20
            idx = 0
            while (idx < bufflen) and(ch != 0):
                ch = buff[idx]
                if (ch >= 0x20) and (ch < 0x7f):
                    idx = idx + 1
                else:
                    ch = 0
            if idx >= bufflen:
                return await self.sendCommand("!%s" % text)
        # send string using file upload
        return await self._upload("txdata", buff)

    async def readByte(self) -> int:
        """
        Reads one byte from the receive buffer, starting at current stream position.
        If data at current stream position is not available anymore in the receive buffer,
        or if there is no data available yet, the function returns YAPI.NO_MORE_DATA.

        @return the next byte

        On failure, throws an exception or returns a negative error code.
        """
        currpos: int
        reqlen: int
        buff: xarray
        bufflen: int
        mult: int
        endpos: int
        res: int
        # first check if we have the requested character in the look-ahead buffer
        bufflen = len(self._rxbuff)
        if (self._rxptr >= self._rxbuffptr) and (self._rxptr < self._rxbuffptr+bufflen):
            res = self._rxbuff[self._rxptr-self._rxbuffptr]
            self._rxptr = self._rxptr + 1
            return res
        # try to preload more than one byte to speed-up byte-per-byte access
        currpos = self._rxptr
        reqlen = 1024
        buff = await self.readBin(reqlen)
        bufflen = len(buff)
        if (bufflen > 0) and (self._rxptr == currpos+bufflen):
            # up to 1024 bytes in buffer, all in direction Rx
            res = buff[0]
            self._rxptr = currpos+1
            self._rxbuffptr = currpos
            self._rxbuff = buff
            return res
        # mixed bidirectional data, retry with a smaller block
        self._rxptr = currpos
        reqlen = 16
        buff = await self.readBin(reqlen)
        bufflen = len(buff)
        if (bufflen > 0) and (self._rxptr == currpos+bufflen):
            # up to 16 bytes in buffer, all in direction Rx
            res = buff[0]
            self._rxptr = currpos+1
            self._rxbuffptr = currpos
            self._rxbuff = buff
            return res
        # still mixed, need to process character by character
        self._rxptr = currpos

        buff = await self._download("rxdata.bin?pos=%d&len=1" % self._rxptr)
        bufflen = len(buff) - 1
        endpos = 0
        mult = 1
        while (bufflen > 0) and(buff[bufflen] != 64):
            endpos = endpos + mult * (buff[bufflen] - 48)
            mult = mult * 10
            bufflen = bufflen - 1
        self._rxptr = endpos
        if bufflen == 0:
            return YAPI.NO_MORE_DATA
        res = buff[0]
        return res

    async def readStr(self, nChars: int) -> str:
        """
        Reads data from the receive buffer as a string, starting at current stream position.
        If data at current stream position is not available anymore in the receive buffer, the
        function performs a short read.

        @param nChars : the maximum number of characters to read

        @return a string with receive buffer contents

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        mult: int
        endpos: int
        res: str
        if nChars > 65535:
            nChars = 65535

        buff = await self._download("rxdata.bin?pos=%d&len=%d" % (self._rxptr, nChars))
        bufflen = len(buff) - 1
        endpos = 0
        mult = 1
        while (bufflen > 0) and(buff[bufflen] != 64):
            endpos = endpos + mult * (buff[bufflen] - 48)
            mult = mult * 10
            bufflen = bufflen - 1
        self._rxptr = endpos
        res = (buff.decode('latin-1'))[0: 0 + bufflen]
        return res

    async def readBin(self, nChars: int) -> xarray:
        """
        Reads data from the receive buffer as a binary buffer, starting at current stream position.
        If data at current stream position is not available anymore in the receive buffer, the
        function performs a short read.

        @param nChars : the maximum number of bytes to read

        @return a binary object with receive buffer contents

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        mult: int
        endpos: int
        idx: int
        res: xarray
        if nChars > 65535:
            nChars = 65535

        buff = await self._download("rxdata.bin?pos=%d&len=%d" % (self._rxptr, nChars))
        bufflen = len(buff) - 1
        endpos = 0
        mult = 1
        while (bufflen > 0) and(buff[bufflen] != 64):
            endpos = endpos + mult * (buff[bufflen] - 48)
            mult = mult * 10
            bufflen = bufflen - 1
        self._rxptr = endpos
        res = xbytearray(bufflen)
        idx = 0
        while idx < bufflen:
            res[idx] = buff[idx]
            idx = idx + 1
        return res

    async def readArray(self, nChars: int) -> list[int]:
        """
        Reads data from the receive buffer as a list of bytes, starting at current stream position.
        If data at current stream position is not available anymore in the receive buffer, the
        function performs a short read.

        @param nChars : the maximum number of bytes to read

        @return a sequence of bytes with receive buffer contents

        On failure, throws an exception or returns an empty array.
        """
        buff: xarray
        bufflen: int
        mult: int
        endpos: int
        idx: int
        b: int
        res: list[int] = []
        if nChars > 65535:
            nChars = 65535

        buff = await self._download("rxdata.bin?pos=%d&len=%d" % (self._rxptr, nChars))
        bufflen = len(buff) - 1
        endpos = 0
        mult = 1
        while (bufflen > 0) and(buff[bufflen] != 64):
            endpos = endpos + mult * (buff[bufflen] - 48)
            mult = mult * 10
            bufflen = bufflen - 1
        self._rxptr = endpos
        del res[:]
        idx = 0
        while idx < bufflen:
            b = buff[idx]
            res.append(b)
            idx = idx + 1

        return res

    async def readHex(self, nBytes: int) -> str:
        """
        Reads data from the receive buffer as a hexadecimal string, starting at current stream position.
        If data at current stream position is not available anymore in the receive buffer, the
        function performs a short read.

        @param nBytes : the maximum number of bytes to read

        @return a string with receive buffer contents, encoded in hexadecimal

        On failure, throws an exception or returns a negative error code.
        """
        buff: xarray
        bufflen: int
        mult: int
        endpos: int
        ofs: int
        res: str
        if nBytes > 65535:
            nBytes = 65535

        buff = await self._download("rxdata.bin?pos=%d&len=%d" % (self._rxptr, nBytes))
        bufflen = len(buff) - 1
        endpos = 0
        mult = 1
        while (bufflen > 0) and(buff[bufflen] != 64):
            endpos = endpos + mult * (buff[bufflen] - 48)
            mult = mult * 10
            bufflen = bufflen - 1
        self._rxptr = endpos
        res = ""
        ofs = 0
        while ofs + 3 < bufflen:
            res = "%s%02X%02X%02X%02X" % (res, buff[ofs], buff[ofs + 1], buff[ofs + 2], buff[ofs + 3])
            ofs = ofs + 4
        while ofs < bufflen:
            res = "%s%02X" % (res, buff[ofs])
            ofs = ofs + 1
        return res

    async def set_SS(self, val: int) -> int:
        """
        Manually sets the state of the SS line. This function has no effect when
        the SS line is handled automatically.

        @param val : 1 to turn SS active, 0 to release SS.

        @return YAPI.SUCCESS if the call succeeds.

        On failure, throws an exception or returns a negative error code.
        """
        return await self.sendCommand("S%d" % val)

    async def snoopMessagesEx(self, maxWait: int, maxMsg: int) -> list[YSpiSnoopingRecord]:
        """
        Retrieves messages (both direction) in the SPI port buffer, starting at current position.

        If no message is found, the search waits for one up to the specified maximum timeout
        (in milliseconds).

        @param maxWait : the maximum number of milliseconds to wait for a message if none is found
                in the receive buffer.
        @param maxMsg : the maximum number of messages to be returned by the function; up to 254.

        @return an array of YSpiSnoopingRecord objects containing the messages found, if any.

        On failure, throws an exception or returns an empty array.
        """
        url: str
        msgbin: xarray
        msgarr: list[xarray] = []
        msglen: int
        res: Union[list[YSpiSnoopingRecord], None] = []
        idx: int

        url = "rxmsg.json?pos=%d&maxw=%d&t=0&len=%d" % (self._rxptr, maxWait, maxMsg)
        msgbin = await self._download(url)
        msgarr = self._json_get_array(msgbin)
        msglen = len(msgarr)
        if msglen == 0:
            return res
        # last element of array is the new position
        msglen = msglen - 1
        self._rxptr = self._decode_json_int(msgarr[msglen])
        idx = 0

        while idx < msglen:
            res.append(YSpiSnoopingRecord(msgarr[idx].decode('latin-1')))
            idx = idx + 1

        return res

    async def snoopMessages(self, maxWait: int) -> list[YSpiSnoopingRecord]:
        """
        Retrieves messages (both direction) in the SPI port buffer, starting at current position.

        If no message is found, the search waits for one up to the specified maximum timeout
        (in milliseconds).

        @param maxWait : the maximum number of milliseconds to wait for a message if none is found
                in the receive buffer.

        @return an array of YSpiSnoopingRecord objects containing the messages found, if any.

        On failure, throws an exception or returns an empty array.
        """
        return await self.snoopMessagesEx(maxWait, 255)

    # --- (end of generated code: YSpiPort implementation)

