/// <summary>
/// Creation of a job to create the next reminder
/// </summary>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
public async Task CreateNextReminderJobAsync()
{
var timeStamp = DateTime.Now.AddHours(2);
await using (var unused = (await _lockFactory.CreateLockAsync().ConfigureAwait(false)).ConfigureAwait(false))
{
if (_currentJobName != null)
{
_jobScheduler.RemoveJob(_currentJobName);
_currentJobName = null;
_currentJob = null;
}
using (var dbFactory = RepositoryFactory.CreateInstance())
{
var next = await dbFactory.GetRepository <FractalRegistrationRepository>()
.GetQuery()
.Where(obj => obj.AppointmentTimeStamp > timeStamp)
.GroupBy(obj => new
{
obj.ConfigurationId,
obj.AppointmentTimeStamp
})
.Select(obj => new
{
TimeStamp = obj.Key.AppointmentTimeStamp,
Count = obj.Count()
})
.Where(obj => obj.Count >= 5)
.Select(obj => (DateTime?)obj.TimeStamp)
.OrderBy(obj => obj)
.FirstOrDefaultAsync()
.ConfigureAwait(false);
if (next != null)
{
_currentJob = new FractalReminderJob(next.Value);
_currentJobName = _jobScheduler.AddJob(_currentJob, next.Value.AddHours(-2));
}
}
}
}