package top.tangyh.lamp.filing.utils

import java.text.SimpleDateFormat
import java.util.*

class DateUtil {

    companion object {
        // 获取当前时间戳
        fun getCurrentTimestamp(): Long {
            return System.currentTimeMillis()
        }

        // 格式化日期
        fun formatDate(date: Date, format: String = "yyyy-MM-dd HH:mm:ss"): String {
            val sdf = SimpleDateFormat(format)
            return sdf.format(date)
        }

        // 解析日期字符串
        fun parseDate(dateString: String, format: String = "yyyy-MM-dd HH:mm:ss"): Date? {
            val sdf = SimpleDateFormat(format)
            return try {
                sdf.parse(dateString)
            } catch (e: Exception) {
                null
            }
        }

        // 计算两个日期之间的天数差
        fun getDaysBetweenDates(date1: Date, date2: Date): Long {
            val diff = Math.abs(date1.time - date2.time)
            return diff / (24 * 60 * 60 * 1000)
        }

        // 获取当前时间并格式化为 yyyy-MM-dd_HH-mm-ss
        fun getCurrentFormattedTime(format: String = "yyyy-MM-dd_HH-mm-ss"): String {
            val sdf = SimpleDateFormat(format)
            return sdf.format(Date())
        }
    }
}