public void SendNotifications(IEnumerable <Notification> notifications)
{
// check if chat id exists
// get all students
var studentIds = notifications.Select(s => s.StudentId).ToList();
var telegramData = _repository.GetUserTelegramData(studentIds).ToList();
if (telegramData.Count == 0)
{
// No students data is in table
return;
}
foreach (var notification in notifications)
{
var studentId = notification.StudentId;
var first = telegramData.FirstOrDefault(s => s.StudentId == studentId);
if (first == null)
{
// it happens, when can`t find user data
_logger.LogError($"{notification.StudentId} don`t have telegram info, but uses telegram notification");
continue;
}
var chatId = first.TelegramChatId;
if (chatId == null)
{
// chat Id not exists
_logger.LogWarning($"User {studentId} not have chatId");
}
NotificationsAction.Send(notification, chatId.Value);
}
}