#encoding = utf8
import os
import time
from ctypes import *

current = os.path.dirname(__file__)
dynamic_path = os.path.join(current, 'ipc.dll')


class IPCUtil:
    def __init__(self, sender, receiver):
        self.__ipc_obj = WinDLL(dynamic_path)
        print(self.__ipc_obj)
        if self.__ipc_obj is not None:
            self.__ipc_obj.initialize.argtypes = [c_char_p, c_char_p]
            self.__ipc_obj.initialize.restype = c_bool
            print('IPCUtil init', sender.encode('utf-8'), receiver.encode('utf-8'))
            self.__init = self.__ipc_obj.initialize(sender.encode('utf-8'), receiver.encode('utf-8'))
            print('IPCUtil init', self.__init)

    def __del__(self):
        print('IPCUtil __del__')
        if self.__ipc_obj is None:
            return
        if self.__init:
            self.__ipc_obj.uninitialize()

    def listen(self):
        if not self.__init:
            return False
        self.__ipc_obj.listen.restype = c_bool
        return self.__ipc_obj.listen()

    def send_text(self, data):
        if not self.__init:
            return False
        self.__ipc_obj.send.argtypes = [c_char_p, c_uint]
        self.__ipc_obj.send.restype = c_bool
        send_data = data.encode('utf-8')
        send_len = len(send_data) + 1
        if not self.__ipc_obj.trySend(send_data, send_len):
            self.__ipc_obj.reConnect()
        return True

    def send_binary(self, data, size):
        if not self.__init:
            return False
        self.__ipc_obj.send.argtypes = [c_char_p, c_uint]
        self.__ipc_obj.send.restype = c_bool
        data_ptr = cast(data, c_char_p)
        return self.__ipc_obj.trySend(data_ptr, size)

    def set_reader_callback(self, callback):
        if not self.__init:
            return False
        CALLBACK_TYPE = CFUNCTYPE(None, c_char_p, c_uint)
        self.c_callback = CALLBACK_TYPE(callback)  # Store the callback to prevent garbage collection
        self.__ipc_obj.setReaderCallback.argtypes = [CALLBACK_TYPE]
        self.__ipc_obj.setReaderCallback.restype = c_bool
        return self.__ipc_obj.setReaderCallback(self.c_callback)


# def ipc_log_callback(log, size):
#     print(f'log={log.decode("utf-8")}, len={size}')
#
#
# util = IPCUtil('ipc_sender', 'ipc_sender')
# util.set_reader_callback(ipc_log_callback)
# print(util.listen())
# print(util.send_text('hello'))
# time.sleep(200)