using System;
using UnityEngine;

/// <summary>
/// 间隔类型
/// </summary>
public enum E_MoreThanType
{
    /// <summary>
    /// 分秒
    /// </summary>
    MS,
    /// <summary>
    /// 时分秒
    /// </summary>
    HMS,
    /// <summary>
    /// 天时分秒
    /// </summary>
    DHMS,
}

/// <summary>
/// 间隔时间
/// </summary>
public enum E_IntervalType
{
    /// <summary>
    /// 天
    /// </summary>
    D,
    /// <summary>
    /// 时
    /// </summary>
    H,
    /// <summary>
    /// 分
    /// </summary>
    M,
    /// <summary>
    /// 秒
    /// </summary>
    S,
}

/// <summary>
/// 时间管理器
/// </summary>
public class TimeManager : SingletonManager<TimeManager>
{
    /// <summary>
    /// 根据long得到显示时间
    /// </summary>
    /// <param name="timestamp"></param>
    /// <returns></returns>
    public DateTime GetDateTimeSeconds(long timestamp)
    {
        long begtime = timestamp * 10000000;
        DateTime dt_1970 = new DateTime(1970, 1, 1, 8, 0, 0);
        long tricks_1970 = dt_1970.Ticks;//1970年1月1日刻度
        long time_tricks = tricks_1970 + begtime;//日志日期刻度
        DateTime dt = new DateTime(time_tricks);//转化为DateTime
        return dt;
    }

    /// <summary>
    /// 得到 long
    /// </summary>
    /// <returns></returns>
    public long GetTimeSpan()
    {
        TimeSpan timeStamp = DateTime.Now.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0, 0);
        return Convert.ToInt64(timeStamp.TotalSeconds);
    }

    /// <summary>
    /// 获取间隔秒数
    /// </summary>
    /// <param name="startTimer">开始时间</param>
    /// <param name="endTimer">结束时间</param>
    /// <returns></returns>
    public T GetSubSeconds<T>(DateTime startTimer, DateTime endTimer, E_IntervalType e_IntervalType) where T : struct
    {
        TimeSpan startSpan = new TimeSpan(startTimer.Ticks);
        TimeSpan nowSpan = new TimeSpan(endTimer.Ticks);
        TimeSpan subTimer = nowSpan.Subtract(startSpan).Duration();
        T time = default(T);
        switch (e_IntervalType)
        {
            case E_IntervalType.D:
                time = (T)Convert.ChangeType(subTimer.Days, typeof(T));
                break;
            case E_IntervalType.H:
                time = (T)Convert.ChangeType(subTimer.Hours, typeof(T));
                break;
            case E_IntervalType.M:
                time = (T)Convert.ChangeType(subTimer.TotalMinutes, typeof(T));
                break;
            case E_IntervalType.S:
                time = (T)Convert.ChangeType(subTimer.TotalSeconds, typeof(T));
                break;
        }
        //返回相差时长（算上分、时的差值，返回相差的总秒数）
        return time;
    }

    /// <summary>
    /// 将秒换算成钟表格式
    /// </summary>
    public string ConversionTable(float second, E_MoreThanType e_MoreThan)//倒计时
    {
        string time = "";
        int d = Mathf.FloorToInt(second / 86400); // 1天 = 86400秒
        int h = Mathf.FloorToInt(second / 3600); //秒数取整 一小时为3600秒 秒数对3600取整即为小时
        int m = Mathf.FloorToInt(second % 3600 / 60); //一分钟为60秒 秒数对3600取余再对60取整即为分钟
        float s = Mathf.FloorToInt(second % 3600 % 60);//对3600取余再对60取余即为秒数
        switch (e_MoreThan)
        {
            case E_MoreThanType.MS:
                time = m + ":" + s.ToString("00");//返回00:00时间格式
                break;
            case E_MoreThanType.HMS:
                time = h + ":" + m + ":" + s.ToString("00");//返回00:00:00时间格式
                break;
            case E_MoreThanType.DHMS:
                time = d + ":" + h + ":" + m + ":" + s.ToString("00");//返回00:00:00时间格式
                break;
        }
        return time;
    }
}