import time
import sys
import os
import re

# pip3 install install pyperclip
sys.path.append(os.path.abspath("SO_site-packages"))
import pyperclip  # 引入模块

recent_value = ""
tmp_value = ""  # 初始化（应该也可以没有这一行，感觉意义不大。但是对recent_value的初始化是必须的）


def add_dollars(text):
    pattern = r'(?<!\$)\b([a-zA-Z0-9.+*/-]+)\b(?!\$)'
    replace_text = r'$\1$'
    result = re.sub(pattern, replace_text, text)
    return result


while True:
    tmp_value = pyperclip.paste()  # 读取剪切板复制的内容
    if tmp_value != recent_value:  # 如果检测到剪切板内容有改动，那么就进入文本的修改
        recent_value = tmp_value
        lines = recent_value.split('\n')
        changed = "### 一、题目描述\n"
        flag = False
        for line in lines:
            if not flag:
                line = add_dollars(line)
                line = line.replace("$\r", "$")
                line = line.replace("$\n", "$")
            if "输入样例" in line:
                flag = True
            line = line.replace("输入格式", "**输入格式**")
            line = line.replace("输出格式", "**输出格式**")
            line = line.replace("数据范围", "**数据范围**")

            if "输入样例" in line:
                line = "\r\n\r\n" + line.replace("输入样例", "**输入样例**")
                line = line + "\r\n" + "```cpp {.line-numbers}\r\n"

            if "输出样例" in line:
                line = "```\r\n" + line.replace("输出样例", "**输出样例**")
                line = line + "\r\n" + "```cpp {.line-numbers}\r\n"

            changed = changed + line

        changed = changed + "\n" + "```"
        recent_value = changed
        pyperclip.copy(changed)  # 将修改后的文本写入系统剪切板中
        print("\n Value changed: %s" % str(changed))  # 输出已经去除换行符的文本
    time.sleep(0.1)