public async Task SendSchedule()
{
var day = DateTime.Now.DayOfWeek;
if (day == DayOfWeek.Sunday || day == DayOfWeek.Saturday)
{
return;
}
var grouped = _db.GetScheduleUsers().GroupBy(x => x.Group);
foreach (var group in grouped)
{
var schedule = _db.TimeTable.FirstOrDefault(x => x.Group == group.Key);
if (schedule is null || string.IsNullOrWhiteSpace(schedule.Schedule))
{
continue;
}
var ids = group.Select(x => x.Vk.Value).ToArray();
await _vkApi.Messages.SendToUserIdsAsync(new MessagesSendParams
{
RandomId = new DateTime().Millisecond + Guid.NewGuid().ToByteArray().Sum(x => x),
UserIds = ids,
Message = schedule.Schedule
});
}
}