New: Option to send notification when a Health Check warning occurs

frontend/src/Settings/Notifications/Notifications/EditNotificationModalContent.js

@@ -42,10 +42,13 @@ function EditNotificationModalContent(props) {
     onDownload,
     onUpgrade,
     onRename,
+    onHealthIssue,
     supportsOnGrab,
     supportsOnDownload,
     supportsOnUpgrade,
     supportsOnRename,
+    supportsOnHealthIssue,
+    includeHealthWarnings,
     tags,
     fields,
     message
@@ -147,6 +150,35 @@ function EditNotificationModalContent(props) {
                 />
               </FormGroup>
 
+              <FormGroup>
+                <FormLabel>On Health Issue</FormLabel>
+
+                <FormInputGroup
+                  type={inputTypes.CHECK}
+                  name="onHealthIssue"
+                  helpText="Be notified on health check failures"
+                  isDisabled={!supportsOnHealthIssue.value}
+                  {...onHealthIssue}
+                  onChange={onInputChange}
+                />
+              </FormGroup>
+
+              {
+                onHealthIssue.value &&
+                  <FormGroup>
+                    <FormLabel>Include Health Warnings</FormLabel>
+
+                    <FormInputGroup
+                      type={inputTypes.CHECK}
+                      name="includeHealthWarnings"
+                      helpText="Be notified on health warnings in addition to errors"
+                      isDisabled={!supportsOnHealthIssue.value}
+                      {...includeHealthWarnings}
+                      onChange={onInputChange}
+                    />
+                  </FormGroup>
+              }
+
               <FormGroup>
                 <FormLabel>Tags</FormLabel>
 

frontend/src/Settings/Notifications/Notifications/Notification.js

@@ -58,10 +58,12 @@ class Notification extends Component {
       onDownload,
       onUpgrade,
       onRename,
+      onHealthIssue,
       supportsOnGrab,
       supportsOnDownload,
       supportsOnUpgrade,
-      supportsOnRename
+      supportsOnRename,
+      supportsOnHealthIssue
     } = this.props;
 
     return (
@@ -102,6 +104,13 @@ class Notification extends Component {
             </Label>
         }
 
+        {
+          supportsOnHealthIssue && onHealthIssue &&
+          <Label kind={kinds.SUCCESS}>
+            On Health Issue
+          </Label>
+        }
+
         {
           !onGrab && !onDownload && !onRename &&
             <Label
@@ -140,10 +149,12 @@ Notification.propTypes = {
   onDownload: PropTypes.bool.isRequired,
   onUpgrade: PropTypes.bool.isRequired,
   onRename: PropTypes.bool.isRequired,
+  onHealthIssue: PropTypes.bool.isRequired,
   supportsOnGrab: PropTypes.bool.isRequired,
   supportsOnDownload: PropTypes.bool.isRequired,
   supportsOnUpgrade: PropTypes.bool.isRequired,
   supportsOnRename: PropTypes.bool.isRequired,
+  supportsOnHealthIssue: PropTypes.bool.isRequired,
   onConfirmDeleteNotification: PropTypes.func.isRequired
 };
 

src/NzbDrone.Core.Test/NotificationTests/NotificationBaseFixture.cs

@@ -65,6 +65,11 @@ namespace NzbDrone.Core.Test.NotificationTests
                 TestLogger.Info("OnRename was called");
             }
 
+            public override void OnHealthIssue(NzbDrone.Core.HealthCheck.HealthCheck artist)
+            {
+                TestLogger.Info("OnHealthIssue was called");
+            }
+
         }
 
         class TestNotificationWithNoEvents : NotificationBase<TestSetting>
@@ -102,6 +107,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnDownload.Should().BeTrue();
             notification.SupportsOnUpgrade.Should().BeTrue();
             notification.SupportsOnRename.Should().BeTrue();
+            notification.SupportsOnHealthIssue.Should().BeTrue();
         }
 
 
@@ -114,6 +120,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnDownload.Should().BeFalse();
             notification.SupportsOnUpgrade.Should().BeFalse();
             notification.SupportsOnRename.Should().BeFalse();
+            notification.SupportsOnHealthIssue.Should().BeFalse();
         }
     }
 

src/NzbDrone.Core/Datastore/Migration/160_health_issue_notification.cs

@@ -0,0 +1,15 @@
+using FluentMigrator;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Migration
+{
+    [Migration(160)]
+    public class health_issue_notification : NzbDroneMigrationBase
+    {
+        protected override void MainDbUpgrade()
+        {
+            Alter.Table("Notifications").AddColumn("OnHealthIssue").AsBoolean().WithDefaultValue(0);
+            Alter.Table("Notifications").AddColumn("IncludeHealthWarnings").AsBoolean().WithDefaultValue(0);
+        }
+    }
+}

src/NzbDrone.Core/Datastore/TableMapping.cs

@@ -74,7 +74,8 @@ namespace NzbDrone.Core.Datastore
                   .Ignore(i => i.SupportsOnGrab)
                   .Ignore(i => i.SupportsOnDownload)
                   .Ignore(i => i.SupportsOnUpgrade)
-                  .Ignore(i => i.SupportsOnRename);
+                  .Ignore(i => i.SupportsOnRename)
+                  .Ignore(i => i.SupportsOnHealthIssue);
 
             Mapper.Entity<MetadataDefinition>().RegisterDefinition("Metadata")
                   .Ignore(d => d.Tags);

src/NzbDrone.Core/HealthCheck/HealthCheckFailedEvent.cs

@@ -0,0 +1,14 @@
+using NzbDrone.Common.Messaging;
+
+namespace NzbDrone.Core.HealthCheck
+{
+    public class HealthCheckFailedEvent : IEvent
+    {
+        public HealthCheck HealthCheck { get; private set; }
+
+        public HealthCheckFailedEvent(HealthCheck healthCheck)
+        {
+            HealthCheck = healthCheck;
+        }
+    }
+} 

src/NzbDrone.Core/HealthCheck/HealthCheckService.cs

@@ -80,6 +80,11 @@ namespace NzbDrone.Core.HealthCheck
 
                 else
                 {
+                    if (_healthCheckResults.Find(result.Source.Name) == null)
+                    {
+                        _eventAggregator.PublishEvent(new HealthCheckFailedEvent(result));
+                    }
+                    
                     _healthCheckResults.Set(result.Source.Name, result);
                 }
             }

src/NzbDrone.Core/Notifications/Boxcar/Boxcar.cs

@@ -26,6 +26,11 @@ namespace NzbDrone.Core.Notifications.Boxcar
             _proxy.SendNotification(MOVIE_DOWNLOADED_TITLE , message.Message, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck message)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE, message.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/CustomScript/CustomScript.cs

@@ -8,6 +8,7 @@ using NLog;
 using NzbDrone.Common.Disk;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Processes;
+using NzbDrone.Core.HealthCheck;
 using NzbDrone.Core.ThingiProvider;
 using NzbDrone.Core.Movies;
 using NzbDrone.Core.Validation;
@@ -112,6 +113,18 @@ namespace NzbDrone.Core.Notifications.CustomScript
             ExecuteScript(environmentVariables);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            var environmentVariables = new StringDictionary();
+
+            environmentVariables.Add("Radarr_EventType", "HealthIssue");
+            environmentVariables.Add("Radarr_Health_Issue_Level", nameof(healthCheck.Type));
+            environmentVariables.Add("Radarr_Health_Issue_Message", healthCheck.Message);
+            environmentVariables.Add("Radarr_Health_Issue_Type", healthCheck.Source.Name);
+            environmentVariables.Add("Radarr_Health_Issue_Wiki", healthCheck.WikiUrl.ToString() ?? string.Empty);
+
+            ExecuteScript(environmentVariables);
+        }
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Discord/Discord.cs

@@ -53,6 +53,23 @@ namespace NzbDrone.Core.Notifications.Discord
             _proxy.SendPayload(payload, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            var attachments = new List<Embed>
+                              {
+                                  new Embed
+                                  {
+                                      Title = healthCheck.Source.Name,
+                                      Text = healthCheck.Message,
+                                      Color = healthCheck.Type == HealthCheck.HealthCheckResult.Warning ? (int)DiscordColors.Warning : (int)DiscordColors.Success
+                                  }
+                              };
+
+            var payload = CreatePayload("Health Issue", attachments);
+
+            _proxy.SendPayload(payload, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Email/Email.cs

@@ -32,6 +32,10 @@ namespace NzbDrone.Core.Notifications.Email
             _emailService.SendEmail(Settings, MOVIE_DOWNLOADED_TITLE_BRANDED, body);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck message)
+        {
+            _emailService.SendEmail(Settings, HEALTH_ISSUE_TITLE_BRANDED, message.Message);
+        }
 
         public override ValidationResult Test()
         {

src/NzbDrone.Core/Notifications/Gotify/Gotify.cs

@@ -29,6 +29,11 @@ namespace NzbDrone.Core.Notifications.Gotify
             _proxy.SendNotification(MOVIE_DOWNLOADED_TITLE, message.Message, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheck.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/INotification.cs

@@ -10,9 +10,11 @@ namespace NzbDrone.Core.Notifications
         void OnGrab(GrabMessage grabMessage);
         void OnDownload(DownloadMessage message);
         void OnMovieRename(Movie movie);
+        void OnHealthIssue(HealthCheck.HealthCheck healthCheck);
         bool SupportsOnGrab { get; }
         bool SupportsOnDownload { get; }
         bool SupportsOnUpgrade { get; }
         bool SupportsOnRename { get; }
+        bool SupportsOnHealthIssue { get; }
     }
 }

src/NzbDrone.Core/Notifications/Join/Join.cs

@@ -27,6 +27,11 @@ namespace NzbDrone.Core.Notifications.Join
             _proxy.SendNotification(MOVIE_DOWNLOADED_TITLE_BRANDED, message.Message, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck message)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE_BRANDED, message.Message, Settings);
+        }
+        
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/MediaBrowser/MediaBrowser.cs

@@ -47,6 +47,13 @@ namespace NzbDrone.Core.Notifications.Emby
             }
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck message)
+        {
+            if (Settings.Notify)
+            {
+                _mediaBrowserService.Notify(Settings, HEALTH_ISSUE_TITLE_BRANDED, message.Message);
+            }
+        }
 
         public override ValidationResult Test()
         {

src/NzbDrone.Core/Notifications/NotificationBase.cs

@@ -10,9 +10,11 @@ namespace NzbDrone.Core.Notifications
     {
         protected const string MOVIE_GRABBED_TITLE = "Movie Grabbed";
         protected const string MOVIE_DOWNLOADED_TITLE = "Movie Downloaded";
+        protected const string HEALTH_ISSUE_TITLE = "Health Check Failure";
 
         protected const string MOVIE_GRABBED_TITLE_BRANDED = "Radarr - " + MOVIE_GRABBED_TITLE;
         protected const string MOVIE_DOWNLOADED_TITLE_BRANDED = "Radarr - " + MOVIE_DOWNLOADED_TITLE;
+        protected const string HEALTH_ISSUE_TITLE_BRANDED = "Radarr - " + HEALTH_ISSUE_TITLE;
 
         public abstract string Name { get; }
 
@@ -42,10 +44,16 @@ namespace NzbDrone.Core.Notifications
 
         }
 
+        public virtual void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+
+        }
+
         public bool SupportsOnGrab => HasConcreteImplementation("OnGrab");
         public bool SupportsOnRename => HasConcreteImplementation("OnMovieRename");
         public bool SupportsOnDownload => HasConcreteImplementation("OnDownload");
         public bool SupportsOnUpgrade => SupportsOnDownload;
+        public bool SupportsOnHealthIssue => HasConcreteImplementation("OnHealthIssue");
 
         protected TSettings Settings => (TSettings)Definition.Settings;
 

src/NzbDrone.Core/Notifications/NotificationDefinition.cs

@@ -8,11 +8,14 @@ namespace NzbDrone.Core.Notifications
         public bool OnDownload { get; set; }
         public bool OnUpgrade { get; set; }
         public bool OnRename { get; set; }
+        public bool OnHealthIssue { get; set; }
         public bool SupportsOnGrab { get; set; }
         public bool SupportsOnDownload { get; set; }
         public bool SupportsOnUpgrade { get; set; }
         public bool SupportsOnRename { get; set; }
+        public bool SupportsOnHealthIssue { get; set; }
+        public bool IncludeHealthWarnings { get; set; }
 
-        public override bool Enable => OnGrab || OnDownload || (OnDownload && OnUpgrade);
+        public override bool Enable => OnGrab || OnDownload || (OnDownload && OnUpgrade) || OnHealthIssue;
     }
 }

src/NzbDrone.Core/Notifications/NotificationFactory.cs

@@ -13,6 +13,7 @@ namespace NzbDrone.Core.Notifications
         List<INotification> OnDownloadEnabled();
         List<INotification> OnUpgradeEnabled();
         List<INotification> OnRenameEnabled();
+        List<INotification> OnHealthIssueEnabled();
     }
 
     public class NotificationFactory : ProviderFactory<INotification, NotificationDefinition>, INotificationFactory
@@ -42,6 +43,11 @@ namespace NzbDrone.Core.Notifications
             return GetAvailableProviders().Where(n => ((NotificationDefinition)n.Definition).OnRename).ToList();
         }
 
+        public List<INotification> OnHealthIssueEnabled()
+        {
+            return GetAvailableProviders().Where(n => ((NotificationDefinition)n.Definition).OnHealthIssue).ToList();
+        }
+
         public override void SetProviderCharacteristics(INotification provider, NotificationDefinition definition)
         {
             base.SetProviderCharacteristics(provider, definition);
@@ -50,6 +56,7 @@ namespace NzbDrone.Core.Notifications
             definition.SupportsOnDownload = provider.SupportsOnDownload;
             definition.SupportsOnUpgrade = provider.SupportsOnUpgrade;
             definition.SupportsOnRename = provider.SupportsOnRename;
+            definition.SupportsOnHealthIssue = provider.SupportsOnHealthIssue;
         }
     }
 }

src/NzbDrone.Core/Notifications/NotificationService.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using NLog;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Core.Download;
+using NzbDrone.Core.HealthCheck;
 using NzbDrone.Core.MediaFiles.Events;
 using NzbDrone.Core.Messaging.Events;
 using NzbDrone.Core.Qualities;
@@ -15,7 +16,8 @@ namespace NzbDrone.Core.Notifications
     public class NotificationService
         : IHandle<MovieRenamedEvent>, 
           IHandle<MovieGrabbedEvent>,
-          IHandle<MovieDownloadedEvent>
+          IHandle<MovieDownloadedEvent>,
+          IHandle<HealthCheckFailedEvent>
 
     {
         private readonly INotificationFactory _notificationFactory;
@@ -63,6 +65,21 @@ namespace NzbDrone.Core.Notifications
             return false;
         }
 
+        private bool ShouldHandleHealthFailure(HealthCheck.HealthCheck healthCheck, bool includeWarnings)
+        {
+            if (healthCheck.Type == HealthCheckResult.Error)
+            {
+                return true;
+            }
+
+            if (healthCheck.Type == HealthCheckResult.Warning && includeWarnings)
+            {
+                return true;
+            }
+
+            return false;
+        }
+
         public void Handle(MovieGrabbedEvent message)
         {
             var grabMessage = new GrabMessage
@@ -138,5 +155,24 @@ namespace NzbDrone.Core.Notifications
                 }
             }
         }
+
+        public void Handle(HealthCheckFailedEvent message)
+        {
+            foreach (var notification in _notificationFactory.OnHealthIssueEnabled())
+            {
+                try
+                {
+                    if (ShouldHandleHealthFailure(message.HealthCheck, ((NotificationDefinition)notification.Definition).IncludeHealthWarnings))
+                    {
+                        notification.OnHealthIssue(message.HealthCheck);
+                    }
+                }
+
+                catch (Exception ex)
+                {
+                    _logger.Warn(ex, "Unable to send OnHealthIssue notification to: " + notification.Definition.Name);
+                }
+            }
+        }
     }
 }

src/NzbDrone.Core/Notifications/PushBullet/PushBullet.cs

@@ -29,6 +29,11 @@ namespace NzbDrone.Core.Notifications.PushBullet
             _proxy.SendNotification(MOVIE_DOWNLOADED_TITLE_BRANDED, message.Message, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE_BRANDED, healthCheck.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Pushover/Pushover.cs

@@ -26,6 +26,11 @@ namespace NzbDrone.Core.Notifications.Pushover
             _proxy.SendNotification(MOVIE_DOWNLOADED_TITLE, message.Message, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheck.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Slack/Slack.cs

@@ -70,6 +70,23 @@ namespace NzbDrone.Core.Notifications.Slack
             _proxy.SendPayload(payload, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            var attachments = new List<Attachment>
+                              {
+                                  new Attachment
+                                  {
+                                      Title = healthCheck.Source.Name,
+                                      Text = healthCheck.Message,
+                                      Color = healthCheck.Type == HealthCheck.HealthCheckResult.Warning ? "warning" : "danger"
+                                  }
+                              };
+
+            var payload = CreatePayload("Health Issue", attachments);
+
+            _proxy.SendPayload(payload, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Telegram/Telegram.cs

@@ -26,6 +26,11 @@ namespace NzbDrone.Core.Notifications.Telegram
             _proxy.SendNotification(MOVIE_DOWNLOADED_TITLE, message.Message, Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheck.Message, Settings);
+        }
+
         public override ValidationResult Test()
         {
             var failures = new List<ValidationFailure>();

src/NzbDrone.Core/Notifications/Twitter/Twitter.cs

@@ -29,6 +29,11 @@ namespace NzbDrone.Core.Notifications.Twitter
             _twitterService.SendNotification($"[Radarr] Imported: {message.Message}", Settings);
         }
 
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            _twitterService.SendNotification($"Health Issue: {healthCheck.Message}", Settings);
+        }
+
         public override object RequestAction(string action, IDictionary<string, string> query)
         {
             if (action == "startOAuth")

src/NzbDrone.Core/Notifications/Xbmc/Xbmc.cs

@@ -41,7 +41,12 @@ namespace NzbDrone.Core.Notifications.Xbmc
             UpdateAndCleanMovie(movie);
         }
 
-        public override string Name => "Kodi (XBMC)";
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            Notify(Settings, HEALTH_ISSUE_TITLE_BRANDED, healthCheck.Message);
+        }
+
+        public override string Name => "Kodi";
 
         public override ValidationResult Test()
         {

src/Radarr.Api.V2/Notifications/NotificationResource.cs

@@ -9,10 +9,13 @@ namespace Radarr.Api.V2.Notifications
         public bool OnDownload { get; set; }
         public bool OnUpgrade { get; set; }
         public bool OnRename { get; set; }
+        public bool OnHealthIssue { get; set; }
         public bool SupportsOnGrab { get; set; }
         public bool SupportsOnDownload { get; set; }
         public bool SupportsOnUpgrade { get; set; }
         public bool SupportsOnRename { get; set; }
+        public bool SupportsOnHealthIssue { get; set; }
+        public bool IncludeHealthWarnings { get; set; }
         public string TestCommand { get; set; }
     }
 
@@ -28,10 +31,13 @@ namespace Radarr.Api.V2.Notifications
             resource.OnDownload = definition.OnDownload;
             resource.OnUpgrade = definition.OnUpgrade;
             resource.OnRename = definition.OnRename;
+            resource.OnHealthIssue = definition.OnHealthIssue;
             resource.SupportsOnGrab = definition.SupportsOnGrab;
             resource.SupportsOnDownload = definition.SupportsOnDownload;
             resource.SupportsOnUpgrade = definition.SupportsOnUpgrade;
             resource.SupportsOnRename = definition.SupportsOnRename;
+            resource.SupportsOnHealthIssue = definition.SupportsOnHealthIssue;
+            resource.IncludeHealthWarnings = definition.IncludeHealthWarnings;
 
             return resource;
         }
@@ -46,10 +52,13 @@ namespace Radarr.Api.V2.Notifications
             definition.OnDownload = resource.OnDownload;
             definition.OnUpgrade = resource.OnUpgrade;
             definition.OnRename = resource.OnRename;
+            definition.OnHealthIssue = resource.OnHealthIssue;
             definition.SupportsOnGrab = resource.SupportsOnGrab;
             definition.SupportsOnDownload = resource.SupportsOnDownload;
             definition.SupportsOnUpgrade = resource.SupportsOnUpgrade;
             definition.SupportsOnRename = resource.SupportsOnRename;
+            definition.SupportsOnHealthIssue = resource.SupportsOnHealthIssue;
+            definition.IncludeHealthWarnings = resource.IncludeHealthWarnings;
 
             return definition;
         }