Merge pull request #5270 from Bond-009/imdb

1 files changed, 35 insertions, 26 deletions

diff --git a/MediaBrowser.Model/Entities/ProviderIdsExtensions.cs b/MediaBrowser.Model/Entities/ProviderIdsExtensions.cs
index 98097477c..4aff6e3a4 100644
--- a/MediaBrowser.Model/Entities/ProviderIdsExtensions.cs
+++ b/MediaBrowser.Model/Entities/ProviderIdsExtensions.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 
 namespace MediaBrowser.Model.Entities
 {
@@ -9,14 +10,26 @@ namespace MediaBrowser.Model.Entities
     public static class ProviderIdsExtensions
     {
         /// <summary>
-        /// Determines whether [has provider identifier] [the specified instance].
+        /// Gets a provider id.
         /// </summary>
         /// <param name="instance">The instance.</param>
-        /// <param name="provider">The provider.</param>
-        /// <returns><c>true</c> if [has provider identifier] [the specified instance]; otherwise, <c>false</c>.</returns>
-        public static bool HasProviderId(this IHasProviderIds instance, MetadataProvider provider)
+        /// <param name="name">The name.</param>
+        /// <param name="id">The provider id.</param>
+        /// <returns><c>true</c> if a provider id with the given name was found; otherwise <c>false</c>.</returns>
+        public static bool TryGetProviderId(this IHasProviderIds instance, string name, [MaybeNullWhen(false)] out string id)
         {
-            return !string.IsNullOrEmpty(instance.GetProviderId(provider.ToString()));
+            if (instance == null)
+            {
+                throw new ArgumentNullException(nameof(instance));
+            }
+
+            if (instance.ProviderIds == null)
+            {
+                id = null;
+                return false;
+            }
+
+            return instance.ProviderIds.TryGetValue(name, out id);
         }
 
         /// <summary>
@@ -24,10 +37,11 @@ namespace MediaBrowser.Model.Entities
         /// </summary>
         /// <param name="instance">The instance.</param>
         /// <param name="provider">The provider.</param>
-        /// <returns>System.String.</returns>
-        public static string? GetProviderId(this IHasProviderIds instance, MetadataProvider provider)
+        /// <param name="id">The provider id.</param>
+        /// <returns><c>true</c> if a provider id with the given name was found; otherwise <c>false</c>.</returns>
+        public static bool TryGetProviderId(this IHasProviderIds instance, MetadataProvider provider, [MaybeNullWhen(false)] out string id)
         {
-            return instance.GetProviderId(provider.ToString());
+            return instance.TryGetProviderId(provider.ToString(), out id);
         }
 
         /// <summary>
@@ -38,18 +52,19 @@ namespace MediaBrowser.Model.Entities
         /// <returns>System.String.</returns>
         public static string? GetProviderId(this IHasProviderIds instance, string name)
         {
-            if (instance == null)
-            {
-                throw new ArgumentNullException(nameof(instance));
-            }
-
-            if (instance.ProviderIds == null)
-            {
-                return null;
-            }
+            instance.TryGetProviderId(name, out string? id);
+            return id;
+        }
 
-            instance.ProviderIds.TryGetValue(name, out string? id);
-            return string.IsNullOrEmpty(id) ? null : id;
+        /// <summary>
+        /// Gets a provider id.
+        /// </summary>
+        /// <param name="instance">The instance.</param>
+        /// <param name="provider">The provider.</param>
+        /// <returns>System.String.</returns>
+        public static string? GetProviderId(this IHasProviderIds instance, MetadataProvider provider)
+        {
+            return instance.GetProviderId(provider.ToString());
         }
 
         /// <summary>
@@ -68,13 +83,7 @@ namespace MediaBrowser.Model.Entities
             // If it's null remove the key from the dictionary
             if (string.IsNullOrEmpty(value))
             {
-                if (instance.ProviderIds != null)
-                {
-                    if (instance.ProviderIds.ContainsKey(name))
-                    {
-                        instance.ProviderIds.Remove(name);
-                    }
-                }
+                instance.ProviderIds?.Remove(name);
             }
             else
             {