########################################################################### # # Copyright (c) 2025-2026 Diality Inc. - All Rights Reserved. # # THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN # WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER. # # @file drybicart.py # # @author (last) Sameer Poyil # @date (last) 19-Nov-2025 # @author (original) Sameer Poyil # @date (original) 19-Nov-2025 # ############################################################################ import struct from enum import unique from logging import Logger from .constants import RESET, NO_RESET from leahi_dialin.common.msg_defs import MsgIds, MsgFieldPositions from leahi_dialin.protocols.CAN import DenaliMessage, DenaliChannels from leahi_dialin.utils.base import AbstractSubSystem, publish, DialinEnum from leahi_dialin.utils.checks import check_broadcast_interval_override_ms from leahi_dialin.utils.conversions import integer_to_bytearray, float_to_bytearray class DDDryBicart(AbstractSubSystem): """ DryBicart Dialysate Delivery (DD) Dialin API sub-class for Dry Bicart related commands. """ def __init__(self, can_interface, logger: Logger): """ @param can_interface: Denali Can Messenger object """ super().__init__() self.can_interface = can_interface self.logger = logger if self.can_interface is not None: channel_id = DenaliChannels.dd_sync_broadcast_ch_id self.msg_id_dd_dry_bicart_data = MsgIds.MSG_ID_DD_DRY_BICART_DATA.value self.can_interface.register_receiving_publication_function(channel_id, self.msg_id_dd_dry_bicart_data, self._handler_dry_bicart_sync) self.dd_dry_bicart_fill_execution_state = 0 self.dd_bicarb_chamber_fill_execution_state = 0 self.dd_dry_bicart_fill_cycle_counter = 0 self.dd_dry_bicart_max_fill_cycle_count = 0 self.dd_dry_bicart_fill_request = 0 self.dd_bicarb_chamber_fill_request = 0 self.dd_dry_bicart_last_fill_time = 0 self.dd_dry_bicart_current_fill_time = 0 self.dd_dry_bicart_timestamp = 0 @publish(["msg_id_dd_dry_bicart_data", "dd_dry_bicart_fill_execution_state", "dd_bicarb_chamber_fill_execution_state", "dd_dry_bicart_fill_cycle_counter", "dd_dry_bicart_max_fill_cycle_count", "dd_dry_bicart_fill_request", "dry_bicarb_chamber_fill_request", "dd_dry_bicart_last_fill_time", "dd_dry_bicart_current_fill_time", "dd_dry_bicart_timestamp"]) def _handler_dry_bicart_sync(self, message, timestamp=0.0): """ Handles published dry bicart data messages. @param message: published dry bicart data message @return: None """ self.dd_dry_bicart_fill_execution_state = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0] self.dd_bicarb_chamber_fill_execution_state = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_2:MsgFieldPositions.END_POS_FIELD_2]))[0] self.dd_dry_bicart_fill_cycle_counter = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_3:MsgFieldPositions.END_POS_FIELD_3]))[0] self.dd_dry_bicart_max_fill_cycle_count = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_4:MsgFieldPositions.END_POS_FIELD_4]))[0] self.ddd_dry_bicart_fill_request = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_5:MsgFieldPositions.END_POS_FIELD_5]))[0] self.dd_bicarb_chamber_fill_request = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_6:MsgFieldPositions.END_POS_FIELD_6]))[0] self.dd_dry_bicart_last_fill_time = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_7:MsgFieldPositions.END_POS_FIELD_7]))[0] self.dd_dry_bicart_current_fill_time = struct.unpack('I', bytearray( message['message'][MsgFieldPositions.START_POS_FIELD_8:MsgFieldPositions.END_POS_FIELD_8]))[0] self.dd_dry_bicart_timestamp = timestamp def cmd_dry_bicart_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int: """ Constructs and sends the dry bicart data broadcast interval override command Constraints: Must be logged into DD. Given interval must be non-zero and a multiple of the DD general task interval (50 ms). @param ms: integer - interval (in ms) to override with @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ if not check_broadcast_interval_override_ms(ms): return False reset_byte_array = integer_to_bytearray(reset) ms_byte_array = integer_to_bytearray(ms) payload = reset_byte_array + ms_byte_array message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_DRY_BICART_DATA_PUBLISH_INTERVAL_OVERRIDE_REQUEST.value, payload=payload) self.logger.debug("override DD Dry Bicart data broadcast interval") # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.error("Timeout!!!!") return False def cmd_bicart_max_fill_cycle_count_override(self, count: int, reset: int = NO_RESET) -> int: """ Constructs and sends the dry bicart max cycle count override command Constraints: Must be logged into DD. @param count: int - count value to override max fill cycle count @param reset: integer - 1 to reset a previous override, 0 to override @return: 1 if successful, zero otherwise """ cycle_count = integer_to_bytearray(count) reset_byte_array = integer_to_bytearray(reset) payload = reset_byte_array + cycle_count message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_DRY_BICART_FILL_CYCLE_MAX_OVERRIDE_REQUEST.value, payload=payload) if reset == RESET: str_res = "reset back to normal" else: str_res = str(cycle_count) self.logger.debug("override max fill cycle count " + ": " + str_res) # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.error("Timeout!!!!") return False def cmd_dry_bicart_fill_request_override(self, start_stop: int, reset: int = NO_RESET) -> int: """ Constructs and sends the dry bicart fill request override command Constraints: Must be logged into DD. @param start_stop: int - value to start or stop dry bicart fill ( start = 1, stop = 0 @return: 1 if successful, zero otherwise """ request = integer_to_bytearray(start_stop) reset_byte_array = integer_to_bytearray(reset) payload = reset_byte_array + request message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_DRY_BICART_FILL_REQUEST_OVERRIDE_REQUEST.value, payload=payload) # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.error("Timeout!!!!") return False def cmd_dry_bicart_bicarb_chamber_fill_request_override(self, start_stop: int, reset: int = NO_RESET) -> int: """ Constructs and sends the dry bicart bicarbonate chamber F fill request override command Constraints: Must be logged into DD. @param start_stop: int - value to start or stop dry bicart fill ( start = 1, stop = 0 @return: 1 if successful, zero otherwise """ request = integer_to_bytearray(start_stop) reset_byte_array = integer_to_bytearray(reset) payload = reset_byte_array + request message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id, message_id=MsgIds.MSG_ID_DD_BICARB_CHAMBER_FILL_REQUEST_OVERRIDE_REQUEST.value, payload=payload) # Send message received_message = self.can_interface.send(message) # If there is content... if received_message is not None: # response payload is OK or not OK return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] else: self.logger.error("Timeout!!!!") return False