refactor(main): split main.ts into focused runtime modules (#123)

src/main/runtime/autoplay-subtitle-priming-runtime.test.ts

@@ -0,0 +1,65 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  createAutoplaySubtitlePrimingRuntime,
+  setMpvCurrentSecondarySubText,
+} from './autoplay-subtitle-priming-runtime';
+
+test('setMpvCurrentSecondarySubText uses client setter when available', () => {
+  const calls: string[] = [];
+  const client = {
+    currentSecondarySubText: '',
+    setCurrentSecondarySubText: (text: string) => {
+      calls.push(text);
+    },
+  };
+
+  setMpvCurrentSecondarySubText(client, 'secondary');
+
+  assert.deepEqual(calls, ['secondary']);
+  assert.equal(client.currentSecondarySubText, '');
+});
+
+test('setMpvCurrentSecondarySubText updates client property when setter is unavailable', () => {
+  const client = {
+    currentSecondarySubText: '',
+  };
+
+  setMpvCurrentSecondarySubText(client, 'secondary');
+
+  assert.equal(client.currentSecondarySubText, 'secondary');
+});
+
+test('scheduleSubtitlePrefetchRefresh logs refresh failures from timer callback', async () => {
+  const logs: string[] = [];
+  const runtime = createAutoplaySubtitlePrimingRuntime({
+    getCurrentMediaPath: () => null,
+    getMpvClient: () => null,
+    setCurrentSubText: () => {},
+    getCurrentSubText: () => '',
+    getCurrentSubtitleData: () => null,
+    setActiveParsedSubtitleMediaPath: () => {},
+    subtitleProcessingController: {
+      consumeCachedSubtitle: () => null,
+      onSubtitleChange: () => {},
+      refreshCurrentSubtitle: () => {},
+    },
+    emitSubtitlePayload: () => {},
+    getSubtitlePrefetchService: () => null,
+    getLastObservedTimePos: () => 0,
+    getVisibleOverlayVisible: () => false,
+    emitSecondarySubtitle: () => {},
+    initSubtitlePrefetch: async () => {},
+    refreshSubtitlePrefetchFromActiveTrack: async () => {
+      throw new Error('refresh failed');
+    },
+    logDebug: (message) => logs.push(message),
+  });
+
+  runtime.scheduleSubtitlePrefetchRefresh(0);
+  await new Promise((resolve) => setTimeout(resolve, 5));
+
+  assert.deepEqual(logs, [
+    '[autoplay-subtitle-prime] subtitle prefetch refresh failed: refresh failed',
+  ]);
+});