public static async Task AddReminder(IUser user, string text, DateTime time, IGuild guild)
{
if (Reminders.Count(ur => ur.UserId == user.Id) + 1 > Information.MaximumReminders)
{
throw new MaximumRemindersException(
$"Maximum simultaneous reminders for {user.Username} has been reached!");
}
var reminder = new UserReminder(user.Mention, user.Id, text, time);
Reminders.Add(reminder);
WriteOut(guild);
IMessageChannel channel;
try
{
channel = await user.GetOrCreateDMChannelAsync();
} catch
{
// not accepting dms
channel = await guild.GetDefaultChannelAsync();
}
var unused = ReminderWaiter(reminder, channel, guild);
}
private static async Task ReminderWaiter(UserReminder reminder, IMessageChannel channel, IGuild guild)
{
var offset = reminder.Time - DateTime.Now;
//Remove if already passed
if (offset.TotalMilliseconds < 0)
{
for (int i = 0; i < Reminders.Count; i++)
{
if (Reminders[i].Equals(reminder))
{
Reminders.RemoveAt(i);
i--;
}
}
return;
}
await Task.Delay((int)offset.TotalMilliseconds);
string message = $"{reminder.UserMention}, you told me to remind you to: \"_{reminder.Text}_\"!";
if (channel != null)
{
await channel.SendMessageAsync(message);
}
else
{
try
{
IEnumerable <IGuildUser> users = await guild.GetUsersAsync();
var user = users.FirstOrDefault(u => u.Mention == reminder.UserMention);
var dm = await user.GetOrCreateDMChannelAsync();
await dm.SendMessageAsync(message);
} catch
{
//could not dm user
}
}
for (int i = 0; i < Reminders.Count; i++)
{
if (Reminders[i].Equals(reminder))
{
Reminders.RemoveAt(i);
i--;
}
}
WriteOut(guild);
}