feat: add Anki deck dropdown with Yomitan auto-fill in settings (#95)

src/anki-integration/known-word-cache.test.ts

@@ -520,6 +520,36 @@ test('KnownWordCacheManager uses the current deck fields for immediate append',
   }
 });
 
+test('KnownWordCacheManager uses all configured deck fields for immediate append without a current deck', () => {
+  const config: AnkiConnectConfig = {
+    deck: '',
+    fields: {
+      word: 'Expression',
+    },
+    knownWords: {
+      highlightEnabled: true,
+      decks: {
+        'Kaishi 1.5k': ['Word'],
+        Minecraft: ['Expression', 'Word'],
+      },
+    },
+  };
+  const { manager, cleanup } = createKnownWordCacheHarness(config);
+
+  try {
+    manager.appendFromNoteInfo({
+      noteId: 1,
+      fields: {
+        Expression: { value: '別人' },
+      },
+    });
+
+    assert.equal(manager.isKnownWord('別人'), true);
+  } finally {
+    cleanup();
+  }
+});
+
 test('KnownWordCacheManager reports immediate append cache clears as mutations', () => {
   const config: AnkiConnectConfig = {
     fields: {

src/anki-integration/known-word-cache.ts

@@ -326,7 +326,18 @@ export class KnownWordCacheManager {
             : null;
 
       if (!selectedDeckEntry) {
-        return null;
+        const configuredFields = trimmedDeckEntries.flatMap(([, fields]) =>
+          Array.isArray(fields) ? fields : [],
+        );
+        const normalizedFields = [
+          ...new Set(
+            configuredFields
+              .map(String)
+              .map((field) => field.trim())
+              .filter((field) => field.length > 0),
+          ),
+        ];
+        return normalizedFields.length > 0 ? normalizedFields : this.getDefaultKnownWordFields();
       }
 
       const deckFields = selectedDeckEntry[1];

src/config/settings/registry.test.ts

@@ -151,6 +151,7 @@ test('settings registry exposes mpv aniskip button as an mpv key learn control',
 });
 
 test('settings registry exposes specialized controls for config-assisted inputs', () => {
+  assert.equal(field('ankiConnect.deck').control, 'anki-deck');
   assert.equal(field('ankiConnect.knownWords.decks').control, 'known-words-decks');
   assert.equal(field('ankiConnect.isLapis.sentenceCardModel').control, 'anki-note-type');
   assert.equal(field('ankiConnect.fields.word').control, 'anki-field');
@@ -228,6 +229,7 @@ test('settings registry routes playback-related integrations into integrations',
 test('settings registry puts feature toggles first, then other toggles alphabetically', () => {
   const ankiConnect = fields.filter((candidate) => candidate.section === 'AnkiConnect');
   assert.equal(ankiConnect[0]?.configPath, 'ankiConnect.enabled');
+  assert.equal(ankiConnect[1]?.configPath, 'ankiConnect.deck');
   assert.ok(
     ankiConnect.findIndex((candidate) => candidate.configPath === 'ankiConnect.enabled') <
       ankiConnect.findIndex((candidate) => candidate.configPath === 'ankiConnect.pollingRate'),
@@ -236,6 +238,14 @@ test('settings registry puts feature toggles first, then other toggles alphabeti
     fields.findIndex((candidate) => candidate.section === 'AnkiConnect') <
       fields.findIndex((candidate) => candidate.section === 'AnkiConnect Proxy'),
   );
+  const miningSections = [
+    ...new Set(
+      fields
+        .filter((candidate) => candidate.category === 'mining-anki')
+        .map((candidate) => candidate.section),
+    ),
+  ];
+  assert.equal(miningSections[0], 'AnkiConnect');
 
   const kikuLapis = fields.filter((candidate) => candidate.section === 'Kiku/Lapis Features');
   assert.deepEqual(
@@ -288,6 +298,7 @@ test('settings registry marks safe live config paths as hot-reloadable', () => {
     'jimaku.maxEntryResults',
     'subsync.replace',
     'ankiConnect.behavior.autoUpdateNewCards',
+    'ankiConnect.deck',
     'ankiConnect.knownWords.highlightEnabled',
     'ankiConnect.knownWords.refreshMinutes',
     'ankiConnect.knownWords.addMinedWordsImmediately',

src/config/settings/registry.ts

@@ -17,7 +17,6 @@ type Leaf = {
 };
 
 export const LEGACY_HIDDEN_CONFIG_PATHS = [
-  'ankiConnect.deck',
   'ankiConnect.wordField',
   'ankiConnect.audioField',
   'ankiConnect.imageField',
@@ -129,11 +128,11 @@ const SECTION_ORDER = new Map<string, number>(
     'Subtitle Sidebar Behavior',
     'YouTube Playback Settings',
     'mpv Playback',
+    'AnkiConnect',
     'Note Fields',
     'Media Capture',
     'Kiku/Lapis Features',
     'Anki AI',
-    'AnkiConnect',
     'AnkiConnect Proxy',
     'Jimaku',
     'Subtitle Sync',
@@ -159,6 +158,7 @@ const SECTION_ORDER = new Map<string, number>(
 const PATH_ORDER = new Map<string, number>(
   [
     'ankiConnect.enabled',
+    'ankiConnect.deck',
     'ankiConnect.proxy.enabled',
     'ankiConnect.isLapis.enabled',
     'ankiConnect.isKiku.enabled',
@@ -494,6 +494,7 @@ function controlForPath(path: string, value: unknown): ConfigSettingsControl {
   if (SECRET_PATHS.has(path)) return 'secret';
   if (getSubtitleCssScopeForPath(path)) return 'css-declarations';
   if (path === 'keybindings') return 'mpv-keybindings';
+  if (path === 'ankiConnect.deck') return 'anki-deck';
   if (path === 'ankiConnect.knownWords.decks') return 'known-words-decks';
   if (path === 'ankiConnect.isLapis.sentenceCardModel') return 'anki-note-type';
   if (path.startsWith('ankiConnect.fields.')) return 'anki-field';
@@ -611,6 +612,7 @@ function isFeatureToggle(field: ConfigSettingsField): boolean {
 
 function fieldTypeRank(field: ConfigSettingsField): number {
   if (field.configPath === 'subtitleStyle.primaryVisibleOnYomitanPopup') return 2;
+  if (field.configPath === 'ankiConnect.deck') return 1;
   if (field.control !== 'boolean') return 2;
   return isFeatureToggle(field) ? 0 : 1;
 }
@@ -661,6 +663,7 @@ function restartBehaviorForPath(path: string): ConfigSettingsRestartBehavior {
     pathStartsWith(path, 'subtitleStyle') ||
     pathStartsWith(path, 'subtitleSidebar') ||
     path === 'secondarySub.defaultMode' ||
+    path === 'ankiConnect.deck' ||
     path === 'ankiConnect.ai.enabled' ||
     path === 'ankiConnect.behavior.autoUpdateNewCards' ||
     path === 'ankiConnect.knownWords.highlightEnabled' ||

src/core/services/config-hot-reload.test.ts

@@ -30,6 +30,7 @@ test('classifyConfigHotReloadDiff treats safe nested config paths as hot-reloada
   next.youtube.primarySubLanguages = ['ja', 'en'];
   next.jimaku.maxEntryResults = prev.jimaku.maxEntryResults + 1;
   next.subsync.replace = !prev.subsync.replace;
+  next.ankiConnect.deck = 'Mining';
   next.ankiConnect.behavior.autoUpdateNewCards = !prev.ankiConnect.behavior.autoUpdateNewCards;
   next.ankiConnect.knownWords.highlightEnabled = !prev.ankiConnect.knownWords.highlightEnabled;
   next.ankiConnect.knownWords.refreshMinutes = prev.ankiConnect.knownWords.refreshMinutes + 5;
@@ -63,6 +64,7 @@ test('classifyConfigHotReloadDiff treats safe nested config paths as hot-reloada
       'youtube.primarySubLanguages',
       'jimaku.maxEntryResults',
       'subsync.replace',
+      'ankiConnect.deck',
       'ankiConnect.behavior.autoUpdateNewCards',
       'ankiConnect.knownWords.highlightEnabled',
       'ankiConnect.knownWords.refreshMinutes',

src/core/services/config-hot-reload.ts

@@ -66,6 +66,7 @@ const HOT_RELOAD_EXACT_OR_PREFIX_PATHS = [
   'youtube.primarySubLanguages',
   'jimaku',
   'subsync',
+  'ankiConnect.deck',
   'ankiConnect.behavior.autoUpdateNewCards',
   'ankiConnect.knownWords.highlightEnabled',
   'ankiConnect.knownWords.refreshMinutes',

src/core/services/index.ts

@@ -36,6 +36,7 @@ export {
 } from './tokenizer/yomitan-parser-runtime';
 export {
   deleteYomitanDictionaryByTitle,
+  getYomitanCurrentAnkiDeckName,
   getYomitanDictionaryInfo,
   getYomitanSettingsFull,
   importYomitanDictionaryFromZip,

src/core/services/tokenizer/yomitan-parser-runtime.test.ts

@@ -6,6 +6,7 @@ import test from 'node:test';
 import * as vm from 'node:vm';
 import {
   addYomitanNoteViaSearch,
+  extractYomitanCurrentAnkiDeckName,
   getYomitanDictionaryInfo,
   importYomitanDictionaryFromZip,
   deleteYomitanDictionaryByTitle,
@@ -181,6 +182,72 @@ test('syncYomitanDefaultAnkiServer no-ops for empty target url', async () => {
   assert.equal(executeCount, 0);
 });
 
+test('extractYomitanCurrentAnkiDeckName prefers the active profile first term card format deck', () => {
+  assert.equal(
+    extractYomitanCurrentAnkiDeckName({
+      profileCurrent: 1,
+      profiles: [
+        {
+          options: {
+            anki: {
+              cardFormats: [{ type: 'term', deck: 'Inactive' }],
+            },
+          },
+        },
+        {
+          options: {
+            anki: {
+              cardFormats: [
+                { type: 'kanji', deck: 'Kanji' },
+                { type: 'term', deck: 'Mining' },
+              ],
+            },
+          },
+        },
+      ],
+    }),
+    'Mining',
+  );
+});
+
+test('extractYomitanCurrentAnkiDeckName ignores disabled card format decks', () => {
+  assert.equal(
+    extractYomitanCurrentAnkiDeckName({
+      profiles: [
+        {
+          options: {
+            anki: {
+              cardFormats: [
+                { type: 'term', deck: 'Disabled Term', enabled: false },
+                { type: 'kanji', deck: 'Disabled Kanji', enabled: false },
+                { type: 'term', deck: 'Mining', enabled: true },
+              ],
+            },
+          },
+        },
+      ],
+    }),
+    'Mining',
+  );
+});
+
+test('extractYomitanCurrentAnkiDeckName falls back to legacy term deck', () => {
+  assert.equal(
+    extractYomitanCurrentAnkiDeckName({
+      profiles: [
+        {
+          options: {
+            anki: {
+              terms: { deck: 'Legacy Mining' },
+            },
+          },
+        },
+      ],
+    }),
+    'Legacy Mining',
+  );
+});
+
 test('requestYomitanTermFrequencies returns normalized frequency entries', async () => {
   let scriptValue = '';
   const deps = createDeps(async (script) => {

src/core/services/tokenizer/yomitan-parser-runtime.ts

@@ -1897,6 +1897,73 @@ export async function syncYomitanDefaultAnkiServer(
   }
 }
 
+function readDeckName(value: unknown): string {
+  return typeof value === 'string' ? value.trim() : '';
+}
+
+function getYomitanDeckFromProfileOptions(profileOptions: Record<string, unknown>): string {
+  const anki = profileOptions.anki;
+  if (!isObject(anki)) {
+    return '';
+  }
+
+  const cardFormats = Array.isArray(anki.cardFormats) ? anki.cardFormats : [];
+  const enabledCardFormats = cardFormats
+    .filter((cardFormat): cardFormat is Record<string, unknown> => isObject(cardFormat))
+    .filter((cardFormat) => cardFormat.enabled !== false);
+
+  const termDeck = enabledCardFormats.find(
+    (cardFormat) => cardFormat.type === 'term' && readDeckName(cardFormat.deck).length > 0,
+  );
+  if (termDeck) {
+    return readDeckName(termDeck.deck);
+  }
+
+  const firstDeck = enabledCardFormats
+    .map((cardFormat) => readDeckName(cardFormat.deck))
+    .find((deckName) => deckName.length > 0);
+  if (firstDeck) {
+    return firstDeck;
+  }
+
+  const terms = anki.terms;
+  if (isObject(terms)) {
+    const legacyTermDeck = readDeckName(terms.deck);
+    if (legacyTermDeck) {
+      return legacyTermDeck;
+    }
+  }
+
+  const kanji = anki.kanji;
+  return isObject(kanji) ? readDeckName(kanji.deck) : '';
+}
+
+export function extractYomitanCurrentAnkiDeckName(optionsFull: Record<string, unknown>): string {
+  const profiles = Array.isArray(optionsFull.profiles) ? optionsFull.profiles : [];
+  if (profiles.length === 0) {
+    return '';
+  }
+
+  const profileCurrent =
+    typeof optionsFull.profileCurrent === 'number' && Number.isFinite(optionsFull.profileCurrent)
+      ? Math.max(0, Math.floor(optionsFull.profileCurrent))
+      : 0;
+  const targetProfile = profiles[profileCurrent];
+  if (!isObject(targetProfile) || !isObject(targetProfile.options)) {
+    return '';
+  }
+
+  return getYomitanDeckFromProfileOptions(targetProfile.options as Record<string, unknown>);
+}
+
+export async function getYomitanCurrentAnkiDeckName(
+  deps: YomitanParserRuntimeDeps,
+  logger: LoggerLike,
+): Promise<string> {
+  const optionsFull = await getYomitanSettingsFull(deps, logger);
+  return optionsFull ? extractYomitanCurrentAnkiDeckName(optionsFull) : '';
+}
+
 function buildYomitanInvokeScript(actionLiteral: string, paramsLiteral: string): string {
   return `
     (async () => {

src/main.ts

@@ -350,6 +350,7 @@ import {
   saveSubtitlePosition as saveSubtitlePositionCore,
   addYomitanNoteViaSearch,
   clearYomitanParserCachesForWindow,
+  getYomitanCurrentAnkiDeckName as getYomitanCurrentAnkiDeckNameCore,
   syncYomitanDefaultAnkiServer as syncYomitanDefaultAnkiServerCore,
   sendMpvCommandRuntime,
   setMpvSubVisibilityRuntime,
@@ -2067,6 +2068,17 @@ const configSettingsRuntime = createConfigSettingsRuntime({
   onHotReloadApplied: applyConfigHotReloadDiff,
   defaultAnkiConnectUrl: DEFAULT_CONFIG.ankiConnect.url,
   createAnkiClient: (url) => new AnkiConnectClient(url),
+  getYomitanAnkiDeckName: async () => {
+    await yomitanExtensionRuntime.ensureYomitanExtensionLoaded();
+    return getYomitanCurrentAnkiDeckNameCore(getYomitanParserRuntimeDeps(), {
+      error: (message, ...args) => {
+        logger.error(message, ...args);
+      },
+      info: (message, ...args) => {
+        logger.info(message, ...args);
+      },
+    });
+  },
   getSettingsWindow: () => appState.configSettingsWindow,
   setSettingsWindow: (window) => {
     appState.configSettingsWindow = window as BrowserWindow | null;

src/main/runtime/config-hot-reload-handlers.test.ts

@@ -60,6 +60,7 @@ test('createConfigHotReloadAppliedHandler runs all hot-reload effects', () => {
 test('createConfigHotReloadAppliedHandler applies safe Anki, annotation, and logging changes', () => {
   const config = deepCloneConfig(DEFAULT_CONFIG);
   config.ankiConnect.behavior.autoUpdateNewCards = false;
+  config.ankiConnect.deck = 'Mining';
   config.ankiConnect.knownWords.highlightEnabled = true;
   config.ankiConnect.knownWords.refreshMinutes = 90;
   config.ankiConnect.knownWords.decks = { Anime: ['Mining'] };
@@ -100,6 +101,7 @@ test('createConfigHotReloadAppliedHandler applies safe Anki, annotation, and log
     {
       hotReloadFields: [
         'ankiConnect.behavior.autoUpdateNewCards',
+        'ankiConnect.deck',
         'ankiConnect.knownWords.highlightEnabled',
         'ankiConnect.knownWords.refreshMinutes',
         'ankiConnect.knownWords.decks',
@@ -123,6 +125,7 @@ test('createConfigHotReloadAppliedHandler applies safe Anki, annotation, and log
 
   assert.deepEqual(ankiPatches, [
     {
+      deck: 'Mining',
       behavior: { autoUpdateNewCards: false },
       knownWords: config.ankiConnect.knownWords,
       nPlusOne: config.ankiConnect.nPlusOne,

src/main/runtime/config-hot-reload-handlers.ts

@@ -86,6 +86,9 @@ function buildAnkiRuntimeConfigPatch(
   if (diff.hotReloadFields.includes('ankiConnect.behavior.autoUpdateNewCards')) {
     patch.behavior = { autoUpdateNewCards: config.ankiConnect.behavior.autoUpdateNewCards };
   }
+  if (diff.hotReloadFields.includes('ankiConnect.deck')) {
+    patch.deck = config.ankiConnect.deck;
+  }
   if (hasAnyHotReloadField(diff, ['ankiConnect.knownWords'])) {
     patch.knownWords = config.ankiConnect.knownWords;
   }

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

@@ -0,0 +1,50 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { DEFAULT_CONFIG, deepCloneConfig } from '../../config';
+import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import { createConfigSettingsRuntime } from './config-settings-runtime';
+
+test('config settings runtime exposes inferred Yomitan Anki deck lookup', async () => {
+  const handlers = new Map<string, (event: unknown, ...args: unknown[]) => unknown>();
+  const runtime = createConfigSettingsRuntime({
+    fields: [],
+    getConfigPath: () => '/tmp/config.jsonc',
+    getRawConfig: () => ({}),
+    getConfig: () => deepCloneConfig(DEFAULT_CONFIG),
+    getWarnings: () => [],
+    reloadConfigStrict: () =>
+      ({
+        ok: true,
+        config: deepCloneConfig(DEFAULT_CONFIG),
+        warnings: [],
+        path: '/tmp/config.jsonc',
+      }) as never,
+    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 () => 'Mining',
+    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: 'Mining' });
+});

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

@@ -3,6 +3,7 @@ import path from 'node:path';
 import { buildConfigSettingsSnapshot } from '../../config/settings/jsonc-edit';
 import type { ConfigValidationWarning, RawConfig, ResolvedConfig } from '../../types/config';
 import type {
+  ConfigSettingsAnkiDeckResult,
   ConfigSettingsAnkiListResult,
   ConfigSettingsField,
   ConfigSettingsSaveResult,
@@ -34,6 +35,7 @@ export interface ConfigSettingsIpcChannels {
   getConfigSettingsAnkiDeckModelNames: string;
   getConfigSettingsAnkiModelNames: string;
   getConfigSettingsAnkiModelFieldNames: string;
+  getConfigSettingsYomitanAnkiDeckName: string;
 }
 
 export interface ConfigSettingsAnkiClient {
@@ -60,6 +62,7 @@ export interface ConfigSettingsRuntimeDeps<TWindow extends ConfigSettingsWindowL
   openPath(path: string): Promise<string>;
   defaultAnkiConnectUrl: string;
   createAnkiClient(url: string): ConfigSettingsAnkiClient;
+  getYomitanAnkiDeckName?: () => Promise<string | null | undefined>;
   ipcMain: ConfigSettingsIpcMainLike;
   ipcChannels: ConfigSettingsIpcChannels;
   log?: (message: string) => void;
@@ -190,6 +193,22 @@ export function createConfigSettingsRuntime<TWindow extends ConfigSettingsWindow
     };
   }
 
+  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() : '' };
+    } catch (error) {
+      return {
+        ok: false,
+        value: '',
+        error: error instanceof Error ? error.message : 'Failed to query Yomitan.',
+      };
+    }
+  }
+
   function registerHandlers(): void {
     deps.ipcMain.handle(deps.ipcChannels.getConfigSettingsSnapshot, () => getSnapshot());
     deps.ipcMain.handle(deps.ipcChannels.saveConfigSettingsPatch, (_event, patch: unknown) => {
@@ -236,6 +255,9 @@ export function createConfigSettingsRuntime<TWindow extends ConfigSettingsWindow
           : invalidAnkiListResult('Note type is required.');
       },
     );
+    deps.ipcMain.handle(deps.ipcChannels.getConfigSettingsYomitanAnkiDeckName, () =>
+      getYomitanAnkiDeckName(),
+    );
   }
 
   return {

src/preload-settings.test.ts

@@ -18,6 +18,7 @@ test('settings preload exposes Anki lookup helpers', () => {
     'getAnkiDeckModelNames',
     'getAnkiModelNames',
     'getAnkiModelFieldNames',
+    'getYomitanAnkiDeckName',
   ]) {
     assert.match(source, new RegExp(`${method}:`));
   }

src/preload-settings.ts

@@ -1,5 +1,6 @@
 import { contextBridge, ipcRenderer } from 'electron';
 import type {
+  ConfigSettingsAnkiDeckResult,
   ConfigSettingsAnkiListResult,
   ConfigSettingsAPI,
   ConfigSettingsPatch,
@@ -17,6 +18,7 @@ const SETTINGS_IPC_CHANNELS = {
   getAnkiDeckModelNames: 'config-settings:anki-deck-model-names',
   getAnkiModelNames: 'config-settings:anki-model-names',
   getAnkiModelFieldNames: 'config-settings:anki-model-field-names',
+  getYomitanAnkiDeckName: 'config-settings:yomitan-anki-deck-name',
 } as const;
 
 const configSettingsAPI: ConfigSettingsAPI = {
@@ -45,6 +47,8 @@ const configSettingsAPI: ConfigSettingsAPI = {
     draftUrl?: string,
   ): Promise<ConfigSettingsAnkiListResult> =>
     ipcRenderer.invoke(SETTINGS_IPC_CHANNELS.getAnkiModelFieldNames, modelName, draftUrl),
+  getYomitanAnkiDeckName: (): Promise<ConfigSettingsAnkiDeckResult> =>
+    ipcRenderer.invoke(SETTINGS_IPC_CHANNELS.getYomitanAnkiDeckName),
 };
 
 contextBridge.exposeInMainWorld('configSettingsAPI', configSettingsAPI);

src/settings/settings-anki-controls.test.ts

@@ -49,3 +49,10 @@ test('known word deck rename selection keeps current deck on collision', () => {
     'Core',
   );
 });
+
+test('Anki deck autofill uses inferred Yomitan deck only for untouched empty values', () => {
+  assert.equal(ankiControls.chooseAnkiDeckAutofillValue('', 'Mining', false), 'Mining');
+  assert.equal(ankiControls.chooseAnkiDeckAutofillValue('Current', 'Mining', false), null);
+  assert.equal(ankiControls.chooseAnkiDeckAutofillValue('', 'Mining', true), null);
+  assert.equal(ankiControls.chooseAnkiDeckAutofillValue('', '   ', false), null);
+});

src/settings/settings-anki-controls.ts

@@ -17,6 +17,11 @@ const state: {
   modelFieldNames: Map<string, string[]>;
   modelFieldNamesLoading: Set<string>;
   modelFieldNamesErrors: Map<string, string>;
+  yomitanAnkiDeckName: string | null;
+  yomitanAnkiDeckNameLoading: boolean;
+  yomitanAnkiDeckNameError: string | null;
+  ankiDeckNameManuallySelected: boolean;
+  ankiDeckNameAutofilled: boolean;
   noteFieldModelName: string;
   ankiConnectUrl: string;
   noteFieldModelNameManuallySelected: boolean;
@@ -35,6 +40,11 @@ const state: {
   modelFieldNames: new Map(),
   modelFieldNamesLoading: new Set(),
   modelFieldNamesErrors: new Map(),
+  yomitanAnkiDeckName: null,
+  yomitanAnkiDeckNameLoading: false,
+  yomitanAnkiDeckNameError: null,
+  ankiDeckNameManuallySelected: false,
+  ankiDeckNameAutofilled: false,
   noteFieldModelName: '',
   ankiConnectUrl: '',
   noteFieldModelNameManuallySelected: false,
@@ -49,6 +59,11 @@ export function configureAnkiControls(options: { requestRender: () => void }): v
 export function initializeAnkiControls(_values: Record<string, ConfigSettingsSnapshotValue>): void {
   state.noteFieldModelName = '';
   state.noteFieldModelNameManuallySelected = false;
+  state.yomitanAnkiDeckName = null;
+  state.yomitanAnkiDeckNameLoading = false;
+  state.yomitanAnkiDeckNameError = null;
+  state.ankiDeckNameManuallySelected = false;
+  state.ankiDeckNameAutofilled = false;
 }
 
 export function selectPreferredNoteFieldModelName(
@@ -90,6 +105,16 @@ export function chooseKnownWordsDeckRenameValue(
   return nextDeckName;
 }
 
+export function chooseAnkiDeckAutofillValue(
+  currentDeckName: string,
+  inferredDeckName: string,
+  manuallySelected: boolean,
+): string | null {
+  const current = currentDeckName.trim();
+  const inferred = inferredDeckName.trim();
+  return !manuallySelected && current.length === 0 && inferred.length > 0 ? inferred : null;
+}
+
 function normalizeStringArray(value: unknown): string[] {
   return Array.isArray(value)
     ? value.filter((entry): entry is string => typeof entry === 'string' && entry.length > 0)
@@ -195,6 +220,28 @@ async function loadAnkiDeckNames(draftUrl?: string): Promise<void> {
   }
 }
 
+async function loadYomitanAnkiDeckName(): Promise<void> {
+  if (state.yomitanAnkiDeckName !== null || state.yomitanAnkiDeckNameLoading) return;
+  state.yomitanAnkiDeckNameLoading = true;
+  try {
+    const result = await window.configSettingsAPI.getYomitanAnkiDeckName();
+    if (result.ok) {
+      state.yomitanAnkiDeckName = result.value.trim();
+      state.yomitanAnkiDeckNameError = null;
+    } else {
+      state.yomitanAnkiDeckName = '';
+      state.yomitanAnkiDeckNameError = result.error ?? 'Failed to read Yomitan Anki deck.';
+    }
+  } catch (error) {
+    state.yomitanAnkiDeckName = '';
+    state.yomitanAnkiDeckNameError =
+      error instanceof Error ? error.message : 'Failed to read Yomitan Anki deck.';
+  } finally {
+    state.yomitanAnkiDeckNameLoading = false;
+    requestRender();
+  }
+}
+
 async function loadAnkiDeckFieldNames(deckName: string, draftUrl?: string): Promise<void> {
   syncAnkiConnectUrl(draftUrl);
   if (
@@ -409,6 +456,54 @@ export function renderAnkiNoteTypeInput(
   return wrap;
 }
 
+export function renderAnkiDeckInput(
+  context: SettingsControlContext,
+  field: ConfigSettingsField,
+): HTMLElement {
+  const draftUrl = getDraftAnkiConnectUrl(context);
+  void loadAnkiDeckNames(draftUrl);
+  void loadYomitanAnkiDeckName();
+
+  const currentValue = context.valueForField(field);
+  let current = typeof currentValue === 'string' ? currentValue.trim() : '';
+  const inferred = state.yomitanAnkiDeckName ?? '';
+  const autofillValue =
+    state.ankiDeckNameAutofilled === false
+      ? chooseAnkiDeckAutofillValue(current, inferred, state.ankiDeckNameManuallySelected)
+      : null;
+  if (autofillValue !== null) {
+    state.ankiDeckNameAutofilled = true;
+    current = autofillValue;
+    context.updateDraft(field.configPath, autofillValue);
+  }
+
+  const select = createElement('select', 'config-input') as HTMLSelectElement;
+  addOption(select, '', state.deckNamesLoading ? 'Loading Decks...' : 'Select Deck');
+  for (const deckName of uniqueSorted([...(state.deckNames ?? []), current])) {
+    if (!deckName) continue;
+    addOption(select, deckName);
+  }
+  select.value = current;
+  select.addEventListener('change', () => {
+    state.ankiDeckNameManuallySelected = true;
+    state.ankiDeckNameAutofilled = true;
+    context.updateDraft(field.configPath, select.value);
+  });
+
+  const wrap = createElement('div', 'stacked-control');
+  wrap.append(select);
+  if (state.deckNamesError) {
+    const hint = createElement('div', 'control-hint error');
+    hint.textContent = state.deckNamesError;
+    wrap.append(hint);
+  } else if (state.yomitanAnkiDeckNameError && !state.yomitanAnkiDeckNameLoading) {
+    const hint = createElement('div', 'control-hint');
+    hint.textContent = state.yomitanAnkiDeckNameError;
+    wrap.append(hint);
+  }
+  return wrap;
+}
+
 export function renderAnkiFieldInput(
   context: SettingsControlContext,
   field: ConfigSettingsField,

src/settings/settings-controls.ts

@@ -3,6 +3,7 @@ import { toConfigDraftValue, toSettingsDisplayValue } from './settings-model';
 import { parseOptionalNumberInputValue } from './input-values';
 import {
   configureAnkiControls,
+  renderAnkiDeckInput,
   initializeAnkiControls,
   renderAnkiFieldInput,
   renderAnkiNoteTypeInput,
@@ -162,6 +163,10 @@ export function renderControl(
     return renderKnownWordsDecksInput(context, field);
   }
 
+  if (field.control === 'anki-deck') {
+    return renderAnkiDeckInput(context, field);
+  }
+
   if (field.control === 'anki-note-type') {
     return renderAnkiNoteTypeInput(context, field);
   }

src/shared/ipc/contracts.ts

@@ -113,6 +113,7 @@ export const IPC_CHANNELS = {
     getConfigSettingsAnkiDeckModelNames: 'config-settings:anki-deck-model-names',
     getConfigSettingsAnkiModelNames: 'config-settings:anki-model-names',
     getConfigSettingsAnkiModelFieldNames: 'config-settings:anki-model-field-names',
+    getConfigSettingsYomitanAnkiDeckName: 'config-settings:yomitan-anki-deck-name',
   },
   event: {
     subtitleSet: 'subtitle:set',

src/types/settings.ts

@@ -23,6 +23,7 @@ export type ConfigSettingsControl =
   | 'key-code'
   | 'mpv-key'
   | 'known-words-decks'
+  | 'anki-deck'
   | 'anki-note-type'
   | 'anki-field'
   | 'mpv-keybindings'
@@ -96,6 +97,7 @@ export interface ConfigSettingsAPI {
     modelName: string,
     draftUrl?: string,
   ): Promise<ConfigSettingsAnkiListResult>;
+  getYomitanAnkiDeckName(): Promise<ConfigSettingsAnkiDeckResult>;
 }
 
 export interface ConfigSettingsAnkiListResult {
@@ -103,3 +105,9 @@ export interface ConfigSettingsAnkiListResult {
   values: string[];
   error?: string;
 }
+
+export interface ConfigSettingsAnkiDeckResult {
+  ok: boolean;
+  value: string;
+  error?: string;
+}