Adds a task to purge cache

Jellyfin.Plugin.Tvdb/ScheduledTasks/PurgeCacheTask.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Model.Tasks;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Plugin.Tvdb.ScheduledTasks
+{
+    /// <summary>
+    /// Task to purge TheTVDB plugin cache.
+    /// </summary>
+    public class PurgeCacheTask : IScheduledTask
+    {
+        private readonly ILogger<PurgeCacheTask> _logger;
+        private readonly TvdbClientManager _tvdbClientManager;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PurgeCacheTask"/> class.
+        /// </summary>
+        /// <param name="logger">Instance of the <see cref="ILogger{TvdbScheduledTask}"/> interface.</param>
+        /// <param name="tvdbClientManager">Instance of <see cref="TvdbClientManager"/>.</param>
+        public PurgeCacheTask(
+            ILogger<PurgeCacheTask> logger,
+            TvdbClientManager tvdbClientManager)
+        {
+            _logger = logger;
+            _tvdbClientManager = tvdbClientManager;
+        }
+
+        /// <inheritdoc/>
+        public string Name => "Purge TheTVDB plugin cache";
+
+        /// <inheritdoc/>
+        public string Key => "PurgeTheTVDBPluginCache";
+
+        /// <inheritdoc/>
+        public string Description => "Purges the TheTVDB Cache";
+
+        /// <inheritdoc/>
+        public string Category => "TheTVDB";
+
+        /// <inheritdoc/>
+        public Task ExecuteAsync(IProgress<double> progress, CancellationToken cancellationToken)
+        {
+            if (_tvdbClientManager.PurgeCache())
+            {
+                _logger.LogInformation("TheTvdb plugin cache purged successfully");
+            }
+            else
+            {
+                _logger.LogError("TheTvdb plugin cache purge failed");
+            }
+
+            return Task.CompletedTask;
+        }
+
+        /// <inheritdoc/>
+        public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
+        {
+            return Enumerable.Empty<TaskTriggerInfo>();
+        }
+    }
+}

Jellyfin.Plugin.Tvdb/TvdbClientManager.cs

@@ -501,6 +501,23 @@ public async Task<IReadOnlyList<ArtworkType>> GetArtworkTypeAsync(CancellationTo
         }
     }
 
+    /// <summary>
+    /// Purge the cache.
+    /// </summary>
+    /// <returns>True if success else false.</returns>
+    public bool PurgeCache()
+    {
+        if (_memoryCache is MemoryCache memoryCache)
+        {
+            memoryCache.Compact(1);
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+
     /// <summary>
     /// Create an independent ServiceProvider because registering HttpClients directly into Jellyfin
     /// causes issues upstream.