/// <summary>
/// نمایش فارسی روز دریافتی شمسی
/// مانند سه شنبه ۲۱ دی ۱۳۹۵
/// </summary>
public static string ToPersianDateTextify(int persianYear, int persianMonth, int persianDay)
{
if (persianYear <= 99)
{
persianYear += 1300;
}
var strDay = PersianCulture.GetPersianWeekDayName(persianYear, persianMonth, persianDay);
var strMonth = PersianCulture.PersianMonthNames[persianMonth];
return($"{strDay} {persianDay} {strMonth} {persianYear}".ToPersianNumbers());
}
private static string toFriendlyPersianDate(this DateTime dt, DateTime comparisonBase, bool appendHhMm)
{
var persianDate = dt.ToPersianYearMonthDay();
//1388/10/22
var persianYear = persianDate.Year;
var persianMonth = persianDate.Month;
var persianDay = persianDate.Day;
//13:14
var hour = dt.Hour;
var min = dt.Minute;
var hhMm =
$"{hour.ToString("00", CultureInfo.InvariantCulture)}:{min.ToString("00", CultureInfo.InvariantCulture)}";
var date = new PersianCalendar().ToDateTime(persianYear, persianMonth, persianDay, hour, min, 0, 0);
var diff = date - comparisonBase;
var totalSeconds = Math.Round(diff.TotalSeconds);
var totalDays = Math.Round(diff.TotalDays);
var suffix = " بعد";
if (totalSeconds < 0)
{
suffix = " قبل";
totalSeconds = Math.Abs(totalSeconds);
totalDays = Math.Abs(totalDays);
}
var dateTimeToday = DateTime.Today;
var yesterday = dateTimeToday.AddDays(-1);
var today = dateTimeToday.Date;
var tomorrow = dateTimeToday.AddDays(1);
hhMm = appendHhMm ? $"، ساعت {hhMm}" : string.Empty;
if (today == date.Date)
{
// Less than one minute ago.
if (totalSeconds < 60)
{
return("هم اکنون");
}
// Less than 2 minutes ago.
if (totalSeconds < 120)
{
return($"یک دقیقه{suffix}{hhMm}");
}
// Less than one hour ago.
if (totalSeconds < 3600)
{
return(string.Format(CultureInfo.InvariantCulture, "{0} دقیقه",
((int)Math.Floor(totalSeconds / 60))) + suffix + hhMm);
}
// Less than 2 hours ago.
if (totalSeconds < 7200)
{
return($"یک ساعت{suffix}{hhMm}");
}
// Less than one day ago.
if (totalSeconds < 86400)
{
return
(string.Format(
CultureInfo.InvariantCulture,
"{0} ساعت",
((int)Math.Floor(totalSeconds / 3600))
) + suffix + hhMm);
}
}
if (yesterday == date.Date)
{
return($"دیروز {PersianCulture.GetPersianWeekDayName(persianYear, persianMonth, persianDay)}{hhMm}");
}
if (tomorrow == date.Date)
{
return($"فردا {PersianCulture.GetPersianWeekDayName(persianYear, persianMonth, persianDay)}{hhMm}");
}
var dayStr = $"، {ToPersianDateTextify(persianYear, persianMonth, persianDay)}{hhMm}";
if (totalSeconds < 30 * TimeConstants.Day)
{
return($"{(int)Math.Abs(totalDays)} روز{suffix}{dayStr}");
}
if (totalSeconds < 12 * TimeConstants.Month)
{
int months = Convert.ToInt32(Math.Floor((double)Math.Abs(diff.Days) / 30));
return(months <= 1 ? $"1 ماه{suffix}{dayStr}" : $"{months} ماه{suffix}{dayStr}");
}
var years = Convert.ToInt32(Math.Floor((double)Math.Abs(diff.Days) / 365));
var daysMonths = (double)Math.Abs(diff.Days) / 30;
var nextMonths = Convert.ToInt32(Math.Truncate(daysMonths)) - (years * 12) - 1;
var nextMonthsStr = nextMonths <= 0 ? "" : $"{(years >= 1 ? " و " : "")}{nextMonths} ماه";
if (years < 1)
{
return($"{nextMonthsStr}{suffix}{dayStr}");
}
return($"{years} سال{nextMonthsStr}{suffix}{dayStr}");
}
