'''
FilePath: \hart\test\pkg\common.py
Author: shenghao.xu
Date: 2023-03-15 10:17:55
LastModifiedBy: shenghao.xu
LastEditTime: 2023-05-15 14:42:43
Descripttion:
'''
from ctypes import *
import ctypes
import os
import struct
import sys


def print_hex_data_space(bytes, uppercase=False):
    l = ['{:02x} '.format(int(i)) for i in bytes]
    if uppercase:
        l = [i.upper() for i in l]
    print("".join(l))
    pass


def print_hex_space(bytes):
    l = ['0x{:02x} '.format(int(i)) for i in bytes]
    print("".join(l))
    pass


# 十六进制打印
def print_hex(bytes):
    l = [hex(int(i)) for i in bytes]
    print("".join(l))
    pass


# 数组异或操作
def xor(bytes):
    result = 0
    for i in bytes:
        result ^= i
    return result


# bytearray 转 ctypes
def bytes_to_ctypes(bytes):
    return (c_ubyte * len(bytes))(*bytes)


def float_to_hex_str(f):  # 浮点数转十六进制字符串
    fp = ctypes.pointer(ctypes.c_float(f))
    cp = ctypes.cast(fp, ctypes.POINTER(ctypes.c_long))
    return hex(cp.contents.value)


class HiddenPrints:
    def __enter__(self):
        self._original_stdout = sys.stdout
        sys.stdout = open(os.devnull, 'w')

    def __exit__(self, exc_type, exc_val, exc_tb):
        sys.stdout.close()
        sys.stdout = self._original_stdout



class LimitedArray:
    def __init__(self, capacity):
        self.capacity = capacity
        self.array = []

    def append(self, element):
        if len(self.array) >= self.capacity:
            self.array.pop(0)
        self.array.append(element)