From 580cd24810c1a96230ed1ad1e2c01ac6e026fb66 Mon Sep 17 00:00:00 2001
From: Octol1ttle <l1ttleofficial@outlook.com>
Date: Tue, 17 Oct 2023 17:23:14 +0500
Subject: [PATCH] Do not try to send messages in empty
 EventNotificationChannels (#167)

This PR fixes an error that would occur if an event was created, was
about to start or started and the EventNotificationChannel was empty.
---
 .../Update/ScheduledEventUpdateService.cs     | 21 +++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/Services/Update/ScheduledEventUpdateService.cs b/src/Services/Update/ScheduledEventUpdateService.cs
index 792eef9..1672e00 100644
--- a/src/Services/Update/ScheduledEventUpdateService.cs
+++ b/src/Services/Update/ScheduledEventUpdateService.cs
@@ -177,6 +177,11 @@ public sealed class ScheduledEventUpdateService : BackgroundService
     private async Task<Result> SendScheduledEventCreatedMessage(
         IGuildScheduledEvent scheduledEvent, JsonNode settings, CancellationToken ct = default)
     {
+        if (GuildSettings.EventNotificationChannel.Get(settings).Empty())
+        {
+            return Result.FromSuccess();
+        }
+
         if (!scheduledEvent.Creator.IsDefined(out var creator))
         {
             return new ArgumentNullError(nameof(scheduledEvent.Creator));
@@ -277,6 +282,11 @@ public sealed class ScheduledEventUpdateService : BackgroundService
     {
         data.ScheduledEvents[scheduledEvent.ID.Value].ActualStartTime = DateTimeOffset.UtcNow;
 
+        if (GuildSettings.EventNotificationChannel.Get(data.Settings).Empty())
+        {
+            return Result.FromSuccess();
+        }
+
         var embedDescriptionResult = scheduledEvent.EntityType switch
         {
             GuildScheduledEventEntityType.StageInstance or GuildScheduledEventEntityType.Voice =>
@@ -297,7 +307,8 @@ public sealed class ScheduledEventUpdateService : BackgroundService
             return Result.FromError(embedDescriptionResult);
         }
 
-        var startedEmbed = new EmbedBuilder().WithTitle(string.Format(Messages.EventStarted, Markdown.Sanitize(scheduledEvent.Name)))
+        var startedEmbed = new EmbedBuilder()
+            .WithTitle(string.Format(Messages.EventStarted, Markdown.Sanitize(scheduledEvent.Name)))
             .WithDescription(embedDescription)
             .WithColour(ColorsList.Green)
             .WithCurrentTimestamp()
@@ -322,7 +333,8 @@ public sealed class ScheduledEventUpdateService : BackgroundService
             return Result.FromSuccess();
         }
 
-        var completedEmbed = new EmbedBuilder().WithTitle(string.Format(Messages.EventCompleted, Markdown.Sanitize(eventData.Name)))
+        var completedEmbed = new EmbedBuilder()
+            .WithTitle(string.Format(Messages.EventCompleted, Markdown.Sanitize(eventData.Name)))
             .WithDescription(
                 string.Format(
                     Messages.EventDuration,
@@ -411,6 +423,11 @@ public sealed class ScheduledEventUpdateService : BackgroundService
     private async Task<Result> SendEarlyEventNotificationAsync(
         IGuildScheduledEvent scheduledEvent, GuildData data, CancellationToken ct)
     {
+        if (GuildSettings.EventNotificationChannel.Get(data.Settings).Empty())
+        {
+            return Result.FromSuccess();
+        }
+
         var contentResult = await _utility.GetEventNotificationMentions(
             scheduledEvent, data, ct);
         if (!contentResult.IsDefined(out var content))