182 lines
8.6 KiB
C#
182 lines
8.6 KiB
C#
using System;
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using System.Threading.Tasks;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using AyaNova.Models;
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using System;
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using System.Linq;
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using System.Globalization;
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using System.Text;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using Microsoft.Extensions.Logging;
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using Microsoft.EntityFrameworkCore;
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using AyaNova.Util;
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using AyaNova.Models;
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namespace AyaNova.Biz
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{
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/// <summary>
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/// Notification processor
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/// turn notifyEvent records into notifications for in app and deliver smtp
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///
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/// </summary>
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internal static class CoreJobNotify
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{
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private static bool NotifyIsRunning = false;
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private static ILogger log = AyaNova.Util.ApplicationLogging.CreateLogger("CoreJobNotify");
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private static DateTime lastRun = DateTime.MinValue;
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// private static TimeSpan DELETE_AFTER_AGE = new TimeSpan(90, 0, 0, 0);
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// private static TimeSpan RUN_EVERY_INTERVAL = new TimeSpan(0, 2, 0);//once every 2 minutes minimum
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private static DateTime lastNotifyHealthCheckSentLocal = DateTime.MinValue;
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private static TimeSpan TS_24_HOURS = new TimeSpan(24, 0, 0);//used to ensure daily ops happen no more than that
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#if (DEBUG)
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private static TimeSpan DELETE_AFTER_AGE = new TimeSpan(0, 12, 0, 0);
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private static TimeSpan RUN_EVERY_INTERVAL = new TimeSpan(0, 0, 20);//no more frequently than once every 20 seconds
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#else
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private static TimeSpan DELETE_AFTER_AGE = new TimeSpan(90, 0, 0, 0);
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private static TimeSpan RUN_EVERY_INTERVAL = new TimeSpan(0, 2, 0);//no more frequently than once every 2 minutes
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////
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// DoSweep
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//
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public static async Task DoWorkAsync()
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{
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log.LogTrace("Checking if Notify should run");
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if (NotifyIsRunning)
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{
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log.LogTrace("Notify is running already exiting this cycle");
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return;
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}
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//This will get triggered roughly every minute, but we don't want to deliver that frequently
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if (DateTime.UtcNow - lastRun < RUN_EVERY_INTERVAL)
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{
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log.LogTrace($"Notify ran less than {RUN_EVERY_INTERVAL}, exiting this cycle");
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return;
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}
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try
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{
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NotifyIsRunning = true;
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log.LogTrace("Notify set to RUNNING state and starting now");
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//NotifyHealthCheck processing
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//Note this deliberately uses LOCAL time in effort to deliver the health check first thing in the morning for workers
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//However if server is on UTC already then that's what is used, there is no adjustment
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DateTime dtNowLocal = DateTime.Now;
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if (dtNowLocal - lastNotifyHealthCheckSentLocal > TS_24_HOURS)
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{
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//are we in the 7th to 9th hour?
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if (dtNowLocal.Hour > 6 && dtNowLocal.Hour < 10)
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{
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log.LogTrace("Notify health check submitted to subscribers");
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await NotifyEventProcessor.AddGeneralNotifyEvent(NotifyEventType.NotifyHealthCheck, "OK");
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lastNotifyHealthCheckSentLocal = dtNowLocal;
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}
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}
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using (AyContext ct = AyaNova.Util.ServiceProviderProvider.DBContext)
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{
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//select all jobs with no deliver date or deliver date no longer in future
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//IMPLEMENTATION NOTES: This code
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// finds the events in NotifyEvent
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// check subscription to determine if the age related ones are deliverable now
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// check subscriptions for each delivery type, i.e. there might be both smtp and inapp separately for the same event so it needs to know that and deliver accordingly
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// remove the notify event after it's processed
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//Older notes:
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//### PLAN if it's an smtp delivery that fails and it's to someone who can be delivered in app then it should send an inapp notification of
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//delivery failure and still delete the smtp delivery
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//If it's not possible to notify the person via in app of the failed smtp then perhaps it notifies OPS personnel and biz admin personnel
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//NEW NOTIFICATION SUBSCRIPTION EVENT TYPE:
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//OPERATIONS_PROBLEMS - backup, notifications, out of memory, what have you, anyone can subscribe to it regardless of rights
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//this is just to let people know there is a problem
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//todo: create message here if not already set?
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//todo: generate and attach report here?
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//All items have an event date, for non time delayed events it's just the moment it was created
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//which will predate this moment now if it's pre-existing
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var events = await ct.NotifyEvent.Include(z => z.NotifySubscription).ToListAsync();
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log.LogTrace($"Found {events.Count} NotifyEvents to examine for potential delivery");
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//iterate and deliver
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foreach (var notifyevent in events)
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{
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//TIME DELAYED AGED EVENT?
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//when to time delay deliver formula:If sub.agevalue!= timespan.zero then deliver on =
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//NotifyEvent "EventDate"+NotifySubscription.AgeValue timespan - NotifySubscription AdvanceNotice timespan > utcNow
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//Is it time delayed?
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if (notifyevent.NotifySubscription.AgeValue != TimeSpan.Zero)
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{
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var deliverAfter = notifyevent.EventDate + notifyevent.NotifySubscription.AgeValue - notifyevent.NotifySubscription.AdvanceNotice;
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if (deliverAfter > DateTime.UtcNow)
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{
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if (notifyevent.NotifySubscription.DeliveryMethod == NotifyDeliveryMethod.App)
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{
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await DeliverInApp(notifyevent, ct);
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}
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if (notifyevent.NotifySubscription.DeliveryMethod == NotifyDeliveryMethod.SMTP)
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{
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await DeliverSMTP(notifyevent, ct);
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}
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}
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}
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else
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{
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//NORMAL IMMEDIATE DELIVERY EVENT
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if (notifyevent.NotifySubscription.DeliveryMethod == NotifyDeliveryMethod.App)
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{
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await DeliverInApp(notifyevent, ct);
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}
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if (notifyevent.NotifySubscription.DeliveryMethod == NotifyDeliveryMethod.SMTP)
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{
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await DeliverSMTP(notifyevent, ct);
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}
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}
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}
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}
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}
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catch (Exception ex)
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{
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log.LogError(ex, $"Error processing notification event");
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}
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finally
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{
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log.LogTrace("Notify is done setting to not running state and tagging lastRun timestamp");
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lastRun = DateTime.UtcNow;
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NotifyIsRunning = false;
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}
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}
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private static async Task DeliverInApp(NotifyEvent ne, AyContext ct)
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{
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log.LogTrace($"DeliverInApp deliving notify event: {ne}");
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await ct.Notification.AddAsync(new Notification() { UserId = ne.UserId, AyaType = ne.AyaType, ObjectId = ne.ObjectId, EventType = ne.EventType, NotifySubscriptionId = ne.NotifySubscriptionId, Message = ne.Message, Name = ne.Name });
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ct.NotifyEvent.Remove(ne);
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await ct.SaveChangesAsync();
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}
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private static async Task DeliverSMTP(NotifyEvent ne, AyContext ct)
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{
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log.LogTrace($"DeliverSMTP deliving notify event: {ne}");
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throw new System.NotImplementedException("DeliverSMTP: NOT IMPLEMENTED YET");
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}
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/////////////////////////////////////////////////////////////////////
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}//eoc
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}//eons
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