import re
import time
def lrcFormat(content: str) -> str:
    lrcTuple = []
    result = ""
    def strTimeToFloat(content: str) -> float:
        t = re.findall(r"\d+", content)  
        if len(t) == 3:
            return int(t[0])*60 + int(t[1]) + float(t[2])/(10**(len(t[2])))
        elif len(t) == 2:
            return int(t[0])*60 + float(t[1])
    def floatToStrTime(content: float) -> str:
        return f"{int(content//60):02d}:{int(content%60):02d}.{int(content*1000%1000):03d}"
    # 读取歌词
    if content is None:
        return "[0.0] 该歌曲暂无歌词\n"
    for i in content.split('\n'):
        a = re.findall(r"\[.*?\]",i)
        timestamps = [strTimeToFloat(i[1:-1]) for i in a] 
        if len(timestamps) == 0:
            continue
        c = re.sub(r"\[.*?\]", "", i).strip()
        for i in timestamps:
            lrcTuple.append((i, c))
    lrcTuple.sort(key=lambda x:x[0])
    for i in lrcTuple:
        result += "[" + str(i[0]) + "] " + i[1] + "\n"
    return result


if __name__ == "__main__":
    data = open("test.lrc", "r").read()
    open("result.lrc", "w").write(lrcFormat(data))