From 85d13b4947ee84cbd0b48935e31b2a12b67192df Mon Sep 17 00:00:00 2001
From: Dermot Duffy <dermot.duffy@gmail.com>
Date: Sun, 19 Mar 2023 15:01:52 -0700
Subject: [PATCH] Tolerate media players not in the entity registry.

---
 src/card.ts                           | 9 ++++++---
 src/utils/ha/entity-registry/index.ts | 9 ++++++++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/card.ts b/src/card.ts
index da61080b..fe97c6de 100644
--- a/src/card.ts
+++ b/src/card.ts
@@ -1154,9 +1154,12 @@ class FrigateCard extends LitElement {
 
     // Filter out entities that are marked as hidden (this information is not
     // available in the HA state, only in the registry).
-    this._mediaPlayers = [...mediaPlayerEntities.values()]
-      .filter((entity) => !entity.hidden_by)
-      .map((entity) => entity.entity_id);
+    this._mediaPlayers = mediaPlayers.filter((entityID) => {
+      // Specifically allow for media players that are not found in the entity registry:
+      // See: https://github.com/dermotduffy/frigate-hass-card/issues/1016
+      const entity = mediaPlayerEntities.get(entityID);
+      return !entity || !entity.hidden_by;
+    });
   }
 
   /**
diff --git a/src/utils/ha/entity-registry/index.ts b/src/utils/ha/entity-registry/index.ts
index 71d9cbb6..79b1dfe5 100644
--- a/src/utils/ha/entity-registry/index.ts
+++ b/src/utils/ha/entity-registry/index.ts
@@ -43,7 +43,14 @@ export class EntityRegistryManager {
   ): Promise<Map<string, Entity>> {
     const output: Map<string, Entity> = new Map();
     const _storeEntity = async (entityID: string): Promise<void> => {
-      const entity = await this.getEntity(hass, entityID);
+      let entity: Entity | null = null;
+      try {
+        entity = await this.getEntity(hass, entityID);
+      } catch {
+        // When asked to fetch multiple entities, ignore missing entities (they
+        // will just not feature in the output).
+        return;
+      }
       if (entity) {
         output.set(entityID, entity);
       }