You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

234 lines
9.0 KiB

//
// DateDifference.cs
//
// Author: Kees van Spelde <sicos2002@hotmail.com>
//
// Copyright (c) 2013-2018 Magic-Sessions. (www.magic-sessions.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
using System;
using MsgReader.Localization;
namespace MsgReader.Helpers
{
/// <summary>
/// This class can be used to calculate the differences between 2 dates in years, months, weeks, days, hours and seconds
/// </summary>
internal class DateDifference
{
#region Properties
public int Years { get; private set; }
public int Months { get; private set; }
public int Weeks { get; private set; }
public int Days { get; private set; }
public int Hours { get; private set; }
public int Minutes { get; private set; }
public int Seconds { get; private set; }
#endregion
#region ToString
/// <summary>
/// Returns the years, days, months, weeks, hours, minutes and seconds as a string.
/// E.g. 1 year, 2 months, 3 weeks, 4 days, 5 hours, 6 minutes
/// </summary>
/// <returns></returns>
public override string ToString()
{
var result = string.Empty;
if (Years > 0)
{
if (Years == 1)
result += Years + " " + LanguageConsts.DateDifferenceYearText;
else
result += Years + " " + LanguageConsts.DateDifferenceYearsText;
}
if (Months > 0)
{
if (!string.IsNullOrEmpty(result))
result += ", ";
if (Months == 1)
result += Months + " " + LanguageConsts.DateDifferenceMonthText;
else
result += Months + " " + LanguageConsts.DateDifferenceMonthsText;
}
if (Weeks > 0)
{
if (!string.IsNullOrEmpty(result))
result += ", ";
if (Weeks == 1)
result += Weeks + " " + LanguageConsts.DateDifferenceWeekText;
else
result += Weeks + " " + LanguageConsts.DateDifferenceWeeksText;
}
if (Days > 0)
{
if (!string.IsNullOrEmpty(result))
result += ", ";
if (Days == 1)
result += Days + " " + LanguageConsts.DateDifferenceDayText;
else
result += Days + " " + LanguageConsts.DateDifferenceDaysText;
}
if (Hours > 0)
{
if (!string.IsNullOrEmpty(result))
result += ", ";
if (Hours == 1)
result += Hours + " " + LanguageConsts.DateDifferenceHourText;
else
result += Hours + " " + LanguageConsts.DateDifferenceHoursText;
}
if (Minutes > 0)
{
if (!string.IsNullOrEmpty(result))
result += ", ";
if (Hours == 1)
result += Minutes + " " + LanguageConsts.DateDifferenceMinuteText;
else
result += Minutes + " " + LanguageConsts.DateDifferenceMinutesText;
}
if (Seconds > 0)
{
if (!string.IsNullOrEmpty(result))
result += ", ";
if (Seconds == 1)
result += Seconds + " " + LanguageConsts.DateDifferenceSecondText;
else
result += Seconds + " " + LanguageConsts.DateDifferenceSecondsText;
}
// Default result for 0 hours when there is no difference
if (string.IsNullOrEmpty(result))
result = "0 " + LanguageConsts.DateDifferenceHourText;
return result;
}
#endregion
#region Difference
/// <summary>
/// Calculates the difference between 2 dates in years, months, weeks, days, hours and seconds
/// </summary>
/// <param name="dateTime1"></param>
/// <param name="dateTime2"></param>
/// <returns></returns>
public static DateDifference Difference(DateTime dateTime1, DateTime dateTime2)
{
if (dateTime1 > dateTime2)
{
var dtTemp = dateTime1;
dateTime1 = dateTime2;
dateTime2 = dtTemp;
}
var dateDiff = new DateDifference {Years = dateTime2.Year - dateTime1.Year};
if (dateDiff.Years > 0)
if (dateTime2.Month < dateTime1.Month)
dateDiff.Years--;
else if (dateTime2.Month == dateTime1.Month)
if (dateTime2.Day < dateTime1.Day)
dateDiff.Years--;
else if (dateTime2.Day == dateTime1.Day)
if (dateTime2.Hour < dateTime1.Hour)
dateDiff.Years--;
else if (dateTime2.Hour == dateTime1.Hour)
if (dateTime2.Minute < dateTime1.Minute)
dateDiff.Years--;
else if (dateTime2.Minute == dateTime1.Minute)
if (dateTime2.Second < dateTime1.Second)
dateDiff.Years--;
dateDiff.Months = dateTime2.Month - dateTime1.Month;
if (dateTime2.Month < dateTime1.Month)
dateDiff.Months = 12 - dateTime1.Month + dateTime2.Month;
if (dateDiff.Months > 0)
if (dateTime2.Day < dateTime1.Day)
dateDiff.Months--;
else if (dateTime2.Day == dateTime1.Day)
if (dateTime2.Hour < dateTime1.Hour)
dateDiff.Months--;
else if (dateTime2.Hour == dateTime1.Hour)
if (dateTime2.Minute < dateTime1.Minute)
dateDiff.Months--;
else if (dateTime2.Minute == dateTime1.Minute)
if (dateTime2.Second < dateTime1.Second)
dateDiff.Months--;
dateDiff.Days = dateTime2.Day - dateTime1.Day;
if (dateTime2.Day < dateTime1.Day)
dateDiff.Days = DateTime.DaysInMonth(dateTime1.Year, dateTime1.Month) - dateTime1.Day + dateTime2.Day;
if (dateDiff.Days > 0)
if (dateTime2.Hour < dateTime1.Hour)
dateDiff.Days--;
else if (dateTime2.Hour == dateTime1.Hour)
if (dateTime2.Minute < dateTime1.Minute)
dateDiff.Days--;
else if (dateTime2.Minute == dateTime1.Minute)
if (dateTime2.Second < dateTime1.Second)
dateDiff.Days--;
dateDiff.Weeks = dateDiff.Days/7;
dateDiff.Days = dateDiff.Days%7;
dateDiff.Hours = dateTime2.Hour - dateTime1.Hour;
if (dateTime2.Hour < dateTime1.Hour)
dateDiff.Hours = 24 - dateTime1.Hour + dateTime2.Hour;
if (dateDiff.Hours > 0)
if (dateTime2.Minute < dateTime1.Minute)
dateDiff.Hours--;
else if (dateTime2.Minute == dateTime1.Minute)
if (dateTime2.Second < dateTime1.Second)
dateDiff.Hours--;
dateDiff.Minutes = dateTime2.Minute - dateTime1.Minute;
if (dateTime2.Minute < dateTime1.Minute)
dateDiff.Minutes = 60 - dateTime1.Minute + dateTime2.Minute;
if (dateDiff.Minutes > 0)
if (dateTime2.Second < dateTime1.Second)
dateDiff.Minutes--;
dateDiff.Seconds = dateTime2.Second - dateTime1.Second;
if (dateTime2.Second < dateTime1.Second)
dateDiff.Seconds = 60 - dateTime1.Second + dateTime2.Second;
return dateDiff;
}
#endregion
}
}