/// <summary>Calculates a new EffectiveEndDate.</summary>
/// <param name="duration">The number of days the license should last.</param>
/// <param name="extendExisting">If true, the existing, non-expired license will be extended by the number of days specified in the duration argument.</param>
/// <returns>The new EffectiveEndDate</returns>
internal DateTime CalculateNewEffectiveEndDate(int duration, bool extendExisting)
{
if (duration > 0 && extendExisting)
{
int currentDaysLeft = (int)EffectiveEndDate.Subtract(DateTime.UtcNow.Date).TotalDays;
if (currentDaysLeft > 0)
{
duration += currentDaysLeft;
}
}
return(DateTime.UtcNow.Date.AddDays(duration));
}
/// <summary>Generates the license status text to display.</summary>
/// <remarks><para>This method is called from <see cref="InitializeLicenseStatusEntries"/>.</para></remarks>
/// <returns>Returns a string containing the license status text displayed to the user.</returns>
internal LicenseStatusEntry GenerateLicenseStatusEntry(bool lastValidationSuccessful)
{
LicenseStatusIcon entryIcon;
StringBuilder status = new StringBuilder();
if (lastValidationSuccessful)
{
//The license is valid, so just set the status text to "Ok."
entryIcon = LicenseStatusIcon.Ok;
if (LicenseTypes.Unlicensed == TypeOfLicense)
{
status.Append("Evaluation");
}
else
{
status.Append("OK");
}
if (ProductOption.OptionType == LicenseProductOption.ProductOptionType.VolumeLicense)
{
status.Append(" (Volume License)");
}
else if (ProductOption.OptionType == LicenseProductOption.ProductOptionType.DownloadableLicenseWithTriggerCodeValidation)
{
status.Append(" (Downloaded, Validated)");
}
//If it is a time-limited or evaluation license, then show additional information about its expiration.
if (LicenseTypes.TimeLimited == TypeOfLicense ||
LicenseTypes.Unlicensed == TypeOfLicense)
{
DateTime local = EffectiveEndDate.ToLocalTime();
TimeSpan timeLeft = local.Subtract(DateTime.Now.Date);
status.Append(" - Expires ");
if (1 > timeLeft.TotalDays)
{
status.Append(local.ToShortTimeString() + " today.");
}
else if (1 == (int)timeLeft.TotalDays)
{
status.Append("tomorrow.");
}
else
{
status.Append(local.ToLongDateString());
status.Append(" (" + ((int)timeLeft.TotalDays).ToString() + " days).");
}
if (timeLeft.TotalDays <= LicenseConfiguration.TimeLimitedWarningDays)
{
entryIcon = LicenseStatusIcon.Warning;
}
}
}
else
{
entryIcon = LicenseStatusIcon.Error;
status.Append(GenerateLicenseErrorString());
}
return(new LicenseStatusEntry(entryIcon, "License", status.ToString()));
}
