From ead13fe1aa723eedb3f842df3042f1943bd529db Mon Sep 17 00:00:00 2001
From: Matthew Haughton <3flex@users.noreply.github.com>
Date: Wed, 30 Oct 2024 09:31:45 +1100
Subject: [PATCH] Enable prefer-nullish-coalescing ts eslint rule

---
 eslint.config.mjs                 |  1 +
 src/components/documentManager.ts |  4 ++--
 src/components/maincontroller.ts  |  9 ++-------
 src/helpers.ts                    | 20 ++++++++++----------
 4 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/eslint.config.mjs b/eslint.config.mjs
index 27bfc245..0f282bbc 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -60,6 +60,7 @@ export default [
             '@typescript-eslint/no-explicit-any': 'warn',
             '@typescript-eslint/no-unused-expressions': 'warn',
             '@typescript-eslint/no-unused-vars': 'error',
+            '@typescript-eslint/prefer-nullish-coalescing': 'error',
             '@typescript-eslint/prefer-ts-expect-error': 'error',
             curly: 'error',
             'import/newline-after-import': 'error',
diff --git a/src/components/documentManager.ts b/src/components/documentManager.ts
index c493bff7..cc432324 100644
--- a/src/components/documentManager.ts
+++ b/src/components/documentManager.ts
@@ -555,7 +555,7 @@ export abstract class DocumentManager {
     private static setGenres(name: string | null): void {
         const element = this.querySelector('.genres');
 
-        element.innerHTML = name || '';
+        element.innerHTML = name ?? '';
     }
 
     /**
@@ -565,7 +565,7 @@ export abstract class DocumentManager {
     private static setOverview(name: string | null): void {
         const element = this.querySelector('.overview');
 
-        element.innerHTML = name || '';
+        element.innerHTML = name ?? '';
     }
 
     /**
diff --git a/src/components/maincontroller.ts b/src/components/maincontroller.ts
index f5d82680..51ea7275 100644
--- a/src/components/maincontroller.ts
+++ b/src/components/maincontroller.ts
@@ -519,17 +519,12 @@ export async function changeStream(
 
     // @ts-expect-error is possible here
     return await PlaybackManager.playItemInternal(state.item, {
-        audioStreamIndex:
-            params.AudioStreamIndex == null
-                ? state.audioStreamIndex
-                : params.AudioStreamIndex,
+        audioStreamIndex: params.AudioStreamIndex ?? state.audioStreamIndex,
         liveStreamId: state.liveStreamId,
         mediaSourceId: state.mediaSourceId,
         startPositionTicks: ticks,
         subtitleStreamIndex:
-            params.SubtitleStreamIndex == null
-                ? state.subtitleStreamIndex
-                : params.SubtitleStreamIndex
+            params.SubtitleStreamIndex ?? state.subtitleStreamIndex
     });
 }
 
diff --git a/src/helpers.ts b/src/helpers.ts
index 04a13eb1..e57e9663 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -93,7 +93,7 @@ export function getSenderReportingData(
         const nowPlayingItem = state.NowPlayingItem;
 
         nowPlayingItem.ServerId = item.ServerId;
-        nowPlayingItem.Chapters = item.Chapters || [];
+        nowPlayingItem.Chapters = item.Chapters ?? [];
 
         const mediaSource = item.MediaSources?.filter((m: MediaSourceInfo) => {
             return m.Id == reportingData.MediaSourceId;
@@ -116,7 +116,7 @@ export function getSenderReportingData(
         nowPlayingItem.Album = item.Album;
         nowPlayingItem.Artists = item.Artists;
 
-        const imageTags = item.ImageTags || {};
+        const imageTags = item.ImageTags ?? {};
 
         if (item.SeriesPrimaryImageTag) {
             nowPlayingItem.PrimaryImageItemId = item.SeriesId;
@@ -239,7 +239,7 @@ export function getMetadata(item: BaseItemDto): any {
         }
 
         // previously: p.PersonType == 'Type'.. wtf?
-        const composer = (item.People || []).filter(
+        const composer = (item.People ?? []).filter(
             (p: BaseItemPerson) => p.Type == 'Composer'
         )[0];
 
@@ -326,7 +326,7 @@ export function createStreamInfo(
                 `videos/${item.Id}/stream.${mediaSource.Container}?mediaSourceId=${mediaSource.Id}&api_key=${JellyfinApi.accessToken}&static=true${seekParam}`
             );
             isStatic = true;
-            playerStartPositionTicks = startPosition || 0;
+            playerStartPositionTicks = startPosition ?? 0;
         } else {
             // TODO deal with !TranscodingUrl
             mediaUrl = JellyfinApi.createUrl(
@@ -335,7 +335,7 @@ export function createStreamInfo(
 
             if (isHlsStream(mediaSource)) {
                 mediaUrl += seekParam;
-                playerStartPositionTicks = startPosition || 0;
+                playerStartPositionTicks = startPosition ?? 0;
                 contentType = 'application/x-mpegURL';
                 streamContainer = 'm3u8';
             } else {
@@ -355,13 +355,13 @@ export function createStreamInfo(
         if (mediaSource.SupportsDirectPlay) {
             mediaUrl = mediaSource.Path;
             isStatic = true;
-            playerStartPositionTicks = startPosition || 0;
+            playerStartPositionTicks = startPosition ?? 0;
         } else {
             const isDirectStream = mediaSource.SupportsDirectStream;
 
             if (isDirectStream) {
                 const outputContainer = (
-                    mediaSource.Container || ''
+                    mediaSource.Container ?? ''
                 ).toLowerCase();
 
                 mediaUrl = JellyfinApi.createUrl(
@@ -382,7 +382,7 @@ export function createStreamInfo(
 
     // TODO: Remove the second half of the expression by supporting changing the mediaElement src dynamically.
     // It is a pain and will require unbinding all event handlers during the operation
-    const canSeek = (mediaSource.RunTimeTicks || 0) > 0;
+    const canSeek = (mediaSource.RunTimeTicks ?? 0) > 0;
 
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     const info: any = {
@@ -560,7 +560,7 @@ export async function getItemsForPlayback(
     query: ItemQuery
 ): Promise<BaseItemDtoQueryResult> {
     query.UserId = userId;
-    query.Limit = query.Limit || 100;
+    query.Limit = query.Limit ?? 100;
     query.Fields = requiredItemFields;
     query.ExcludeLocationTypes = 'Virtual';
 
@@ -720,7 +720,7 @@ export async function translateRequestedItems(
             }
         );
 
-        episodesResult.TotalRecordCount = episodesResult.Items?.length || 0;
+        episodesResult.TotalRecordCount = episodesResult.Items?.length ?? 0;
 
         return episodesResult;
     }