feat(core): add Electron runtime, services, and app composition

src/main/runtime/anilist-media-guess.test.ts

@@ -0,0 +1,65 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  createEnsureAnilistMediaGuessHandler,
+  createMaybeProbeAnilistDurationHandler,
+  type AnilistMediaGuessRuntimeState,
+} from './anilist-media-guess';
+
+test('maybeProbeAnilistDuration updates state with probed duration', async () => {
+  let state: AnilistMediaGuessRuntimeState = {
+    mediaKey: '/tmp/video.mkv',
+    mediaDurationSec: null,
+    mediaGuess: null,
+    mediaGuessPromise: null,
+    lastDurationProbeAtMs: 0,
+  };
+  const probe = createMaybeProbeAnilistDurationHandler({
+    getState: () => state,
+    setState: (next) => {
+      state = next;
+    },
+    durationRetryIntervalMs: 1000,
+    now: () => 2000,
+    requestMpvDuration: async () => 321,
+    logWarn: () => {},
+  });
+
+  const duration = await probe('/tmp/video.mkv');
+  assert.equal(duration, 321);
+  assert.equal(state.mediaDurationSec, 321);
+});
+
+test('ensureAnilistMediaGuess memoizes in-flight guess promise', async () => {
+  let state: AnilistMediaGuessRuntimeState = {
+    mediaKey: '/tmp/video.mkv',
+    mediaDurationSec: null,
+    mediaGuess: null,
+    mediaGuessPromise: null,
+    lastDurationProbeAtMs: 0,
+  };
+  let calls = 0;
+  const ensureGuess = createEnsureAnilistMediaGuessHandler({
+    getState: () => state,
+    setState: (next) => {
+      state = next;
+    },
+    resolveMediaPathForJimaku: (value) => value,
+    getCurrentMediaPath: () => '/tmp/video.mkv',
+    getCurrentMediaTitle: () => 'Episode 1',
+    guessAnilistMediaInfo: async () => {
+      calls += 1;
+      return { title: 'Show', episode: 1, source: 'guessit' };
+    },
+  });
+
+  const [first, second] = await Promise.all([
+    ensureGuess('/tmp/video.mkv'),
+    ensureGuess('/tmp/video.mkv'),
+  ]);
+  assert.deepEqual(first, { title: 'Show', episode: 1, source: 'guessit' });
+  assert.deepEqual(second, { title: 'Show', episode: 1, source: 'guessit' });
+  assert.equal(calls, 1);
+  assert.deepEqual(state.mediaGuess, { title: 'Show', episode: 1, source: 'guessit' });
+  assert.equal(state.mediaGuessPromise, null);
+});