如何在当前行之前60秒返回行的索引

import time

def get_index_before_60s(log_lines):
    current_timestamp = time.time()  # 获取当前时间戳

    for i in range(len(log_lines)):
        line_timestamp = extract_timestamp(log_lines[i])  # 提取行的时间戳
        if current_timestamp - line_timestamp <= 60:
            return i - 1  # 返回前一行的索引

    return -1  # 如果没有找到符合条件的行，则返回-1

def extract_timestamp(log_line):
    # 从日志行中提取时间戳的逻辑，根据实际情况进行实现
    pass

# 示例日志数据
log_lines = [
    "2022-01-01 12:00:00 Line 1",
    "2022-01-01 12:00:30 Line 2",
    "2022-01-01 12:01:00 Line 3",
    "2022-01-01 12:01:30 Line 4",
    "2022-01-01 12:02:00 Line 5"
]

index = get_index_before_60s(log_lines)
if index != -1:
    print("The index of the line before 60 seconds is:", index)
else:
    print("No line found within 60 seconds.")