Fixed the notifications issue

src/Ombi.Helpers/JobDataKeys.cs

@@ -0,0 +1,8 @@
+namespace Ombi.Helpers
+{
+    public class JobDataKeys
+    {
+        public const string RecentlyAddedSearch = "recentlyAddedSearch";
+        public const string NotificationOptions = nameof(NotificationOptions);
+    }
+}

src/Ombi.Helpers/Ombi.Helpers.csproj

@@ -14,6 +14,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="2.2.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
     <PackageReference Include="Nito.AsyncEx" Version="5.0.0-pre-05" />
+    <PackageReference Include="Quartz" Version="3.0.7" />
     <PackageReference Include="System.Security.Claims" Version="4.3.0" />
   </ItemGroup>
 

src/Ombi.Helpers/OmbiQuartz.cs

@@ -0,0 +1,91 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Quartz;
+using Quartz.Impl;
+using Quartz.Spi;
+
+namespace Ombi.Helpers
+{
+    public class OmbiQuartz
+    {
+        protected IScheduler _scheduler { get; set; }
+        
+        public static IScheduler Scheduler => Instance._scheduler;
+
+        // Singleton
+        protected static OmbiQuartz _instance;
+
+        /// <summary>
+        /// Singleton
+        /// </summary>
+        public static OmbiQuartz Instance => _instance ?? (_instance = new OmbiQuartz());
+
+        protected OmbiQuartz()
+        {
+            Init();
+        }
+
+        private async void Init()
+        {
+            _scheduler = await new StdSchedulerFactory().GetScheduler();
+        }
+        
+        public IScheduler UseJobFactory(IJobFactory jobFactory)
+        {
+            Scheduler.JobFactory = jobFactory;
+            return Scheduler;
+        }
+
+        public async Task AddJob<T>(string name, string group, string cronExpression, Dictionary<string, string> jobData = null)
+            where T : IJob
+        {
+            var jobBuilder = JobBuilder.Create<T>()
+                .WithIdentity(new JobKey(name, group));
+            if (jobData != null)
+            {
+                foreach (var o in jobData)
+                {
+                    jobBuilder.UsingJobData(o.Key, o.Value);
+                }
+            }
+
+            if(!cronExpression.HasValue())
+            {
+                jobBuilder.StoreDurably(true);
+            }
+
+            var job = jobBuilder.Build();
+            if (cronExpression.HasValue())
+            {
+                ITrigger jobTrigger = TriggerBuilder.Create()
+                    .WithIdentity(name + "Trigger", group)
+                    .WithCronSchedule(cronExpression, 
+                        x => x.WithMisfireHandlingInstructionFireAndProceed())
+                    .ForJob(name, group)
+                    .StartNow()
+                    .Build();
+                await Scheduler.ScheduleJob(job, jobTrigger);
+            } 
+            else
+            {
+                await Scheduler.AddJob(job, true);
+            }
+            
+        }
+
+        public static async Task TriggerJob(string jobName, string group)
+        {
+            await Scheduler.TriggerJob(new JobKey(jobName, group));
+        }
+
+        public static async Task TriggerJob(string jobName, string group, IDictionary<string, object> data)
+        {
+            await Scheduler.TriggerJob(new JobKey(jobName, group), new JobDataMap(data));
+        }
+
+        public static async Task Start()
+        {
+            await Scheduler.Start();
+        }
+    }
+}