feat(stats): speed up session maintenance and improve stats UI (#111)

src/main/runtime/config-settings-runtime.test.ts

@@ -1,6 +1,10 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
 import { DEFAULT_CONFIG, deepCloneConfig } from '../../config';
+import { resolveConfig } from '../../config/resolve';
 import { IPC_CHANNELS } from '../../shared/ipc/contracts';
 import { createConfigSettingsRuntime } from './config-settings-runtime';
 
@@ -10,7 +14,13 @@ test('config settings runtime exposes inferred Yomitan Anki deck lookup', async
     fields: [],
     getConfigPath: () => '/tmp/config.jsonc',
     getRawConfig: () => ({}),
-    getConfig: () => deepCloneConfig(DEFAULT_CONFIG),
+    getConfig: () => ({
+      ...deepCloneConfig(DEFAULT_CONFIG),
+      ankiConnect: {
+        ...deepCloneConfig(DEFAULT_CONFIG).ankiConnect,
+        deck: 'Configured',
+      },
+    }),
     getWarnings: () => [],
     reloadConfigStrict: () =>
       ({
@@ -48,3 +58,62 @@ test('config settings runtime exposes inferred Yomitan Anki deck lookup', async
   assert.ok(handler);
   assert.deepEqual(await handler({}, undefined), { ok: true, value: 'Mining' });
 });
+
+test('config settings runtime persists inferred Yomitan Anki deck when config deck is empty', async () => {
+  const handlers = new Map<string, (event: unknown, ...args: unknown[]) => unknown>();
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'subminer-settings-'));
+  const configPath = path.join(dir, 'config.jsonc');
+  fs.writeFileSync(configPath, '{"ankiConnect":{"deck":""}}\n', 'utf-8');
+
+  try {
+    let rawConfig = { ankiConnect: { deck: '' } };
+    let resolvedConfig = resolveConfig(rawConfig).resolved;
+    const runtime = createConfigSettingsRuntime({
+      fields: [],
+      getConfigPath: () => configPath,
+      getRawConfig: () => rawConfig,
+      getConfig: () => resolvedConfig,
+      getWarnings: () => [],
+      reloadConfigStrict: () => {
+        rawConfig = JSON.parse(fs.readFileSync(configPath, 'utf-8'));
+        resolvedConfig = resolveConfig(rawConfig).resolved;
+        return {
+          ok: true,
+          config: resolvedConfig,
+          warnings: [],
+          path: configPath,
+        };
+      },
+      getSettingsWindow: () => null,
+      setSettingsWindow: () => undefined,
+      createSettingsWindow: () => ({}) as never,
+      settingsHtmlPath: '/tmp/settings.html',
+      openPath: async () => '',
+      defaultAnkiConnectUrl: DEFAULT_CONFIG.ankiConnect.url,
+      createAnkiClient: () =>
+        ({
+          deckNames: async () => [],
+          fieldNamesForDeck: async () => [],
+          modelNamesForDeck: async () => [],
+          modelNames: async () => [],
+          modelFieldNames: async () => [],
+        }) as never,
+      getYomitanAnkiDeckName: async () => 'Minecraft',
+      ipcMain: {
+        handle: (channel, listener) => {
+          handlers.set(channel, listener);
+        },
+      },
+      ipcChannels: IPC_CHANNELS.request,
+    });
+
+    runtime.registerHandlers();
+
+    const handler = handlers.get(IPC_CHANNELS.request.getConfigSettingsYomitanAnkiDeckName);
+    assert.ok(handler);
+    assert.deepEqual(await handler({}, undefined), { ok: true, value: 'Minecraft' });
+    assert.equal(JSON.parse(fs.readFileSync(configPath, 'utf-8')).ankiConnect.deck, 'Minecraft');
+  } finally {
+    fs.rmSync(dir, { recursive: true, force: true });
+  }
+});

src/main/runtime/config-settings-runtime.ts

@@ -193,13 +193,38 @@ export function createConfigSettingsRuntime<TWindow extends ConfigSettingsWindow
     };
   }
 
+  function persistInferredYomitanDeckIfEmpty(deckName: string): void {
+    const normalizedDeckName = deckName.trim();
+    const configuredDeckName = deps.getConfig().ankiConnect?.deck?.trim() ?? '';
+    if (!normalizedDeckName || configuredDeckName) {
+      return;
+    }
+
+    const result = savePatch({
+      operations: [
+        {
+          op: 'set',
+          path: 'ankiConnect.deck',
+          value: normalizedDeckName,
+        },
+      ],
+    });
+    if (!result.ok) {
+      deps.log?.(
+        `Failed to persist inferred Yomitan Anki deck: ${result.error ?? 'unknown error'}`,
+      );
+    }
+  }
+
   async function getYomitanAnkiDeckName(): Promise<ConfigSettingsAnkiDeckResult> {
     if (!deps.getYomitanAnkiDeckName) {
       return { ok: true, value: '' };
     }
     try {
       const value = await deps.getYomitanAnkiDeckName();
-      return { ok: true, value: typeof value === 'string' ? value.trim() : '' };
+      const deckName = typeof value === 'string' ? value.trim() : '';
+      persistInferredYomitanDeckIfEmpty(deckName);
+      return { ok: true, value: deckName };
     } catch (error) {
       return {
         ok: false,

src/main/runtime/mpv-client-event-bindings.test.ts

@@ -159,6 +159,30 @@ test('mpv subtitle timing handler runs AniList without timing tracker and passes
   assert.deepEqual(calls, ['immersion:line:899:901', 'post-watch:901']);
 });
 
+test('mpv subtitle timing handler skips invalid cue pairs until timing is complete', () => {
+  const calls: string[] = [];
+  const handler = createHandleMpvSubtitleTimingHandler({
+    recordImmersionSubtitleLine: (text, start, end) =>
+      calls.push(`immersion:${text}:${start}:${end}`),
+    hasSubtitleTimingTracker: () => true,
+    recordSubtitleTiming: (text, start, end) => calls.push(`timing:${text}:${start}:${end}`),
+    maybeRunAnilistPostWatchUpdate: async (options) => {
+      calls.push(`post-watch:${options?.watchedSeconds}`);
+    },
+    logError: () => calls.push('error'),
+  });
+
+  handler({ text: 'line', start: 953.991, end: 953.891 });
+  handler({ text: 'line', start: 953.991, end: 956.56 });
+
+  assert.deepEqual(calls, [
+    'post-watch:953.991',
+    'immersion:line:953.991:956.56',
+    'timing:line:953.991:956.56',
+    'post-watch:956.56',
+  ]);
+});
+
 test('mpv event bindings register all expected events', () => {
   const seenEvents: string[] = [];
   const bindHandlers = createBindMpvClientEventHandlers({

src/main/runtime/mpv-client-event-bindings.ts

@@ -72,7 +72,7 @@ export function createHandleMpvSubtitleTimingHandler(deps: {
       Number.isFinite(end) ? end : 0,
     );
     const options = watchedSeconds > 0 ? { watchedSeconds } : undefined;
-    if (text.trim()) {
+    if (text.trim() && Number.isFinite(start) && Number.isFinite(end) && end > start) {
       deps.recordImmersionSubtitleLine(text, start, end);
       if (deps.hasSubtitleTimingTracker()) {
         deps.recordSubtitleTiming(text, start, end);