refactor(renderer): extract modal registry for open/dismiss/active queries (#166)

changes/renderer-modal-registry.md

@@ -0,0 +1,4 @@
+type: internal
+area: overlay
+
+- Consolidated renderer modal state handling into a descriptor registry.

src/renderer/modal-registry.test.ts

@@ -0,0 +1,55 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import { createModalRegistry, type ModalDescriptor } from './modal-registry';
+
+test('modal registry derives open, subtitle-suppression, and active state from descriptor order', () => {
+  const openIds = new Set(['animetosho', 'runtime-options']);
+  const descriptors: ModalDescriptor<string>[] = [
+    {
+      id: 'jimaku',
+      isOpen: () => openIds.has('jimaku'),
+      close: () => {},
+      suppressesSubtitles: true,
+    },
+    {
+      id: 'animetosho',
+      isOpen: () => openIds.has('animetosho'),
+      close: () => {},
+      suppressesSubtitles: false,
+    },
+    {
+      id: 'runtime-options',
+      isOpen: () => openIds.has('runtime-options'),
+      close: () => {},
+      suppressesSubtitles: true,
+    },
+  ];
+  const registry = createModalRegistry(descriptors);
+
+  assert.equal(registry.isAnyOpen(), true);
+  assert.equal(registry.isAnySuppressingSubtitlesOpen(), true);
+  assert.equal(registry.getActive(), 'animetosho');
+
+  openIds.clear();
+  assert.equal(registry.isAnyOpen(), false);
+  assert.equal(registry.isAnySuppressingSubtitlesOpen(), false);
+  assert.equal(registry.getActive(), null);
+});
+
+test('modal registry dismisses every open descriptor and skips closed descriptors', () => {
+  const closed: string[] = [];
+  const descriptors: ModalDescriptor<string>[] = ['closed', 'first-open', 'second-open'].map(
+    (id) => ({
+      id,
+      isOpen: () => id !== 'closed',
+      close: () => closed.push(id),
+      suppressesSubtitles: false,
+    }),
+  );
+  const registry = createModalRegistry(descriptors);
+
+  registry.dismissOpen();
+
+  assert.deepEqual(closed, ['first-open', 'second-open']);
+});

src/renderer/modal-registry.ts

@@ -0,0 +1,24 @@
+export type ModalDescriptor<TId extends string> = {
+  id: TId;
+  isOpen: () => boolean;
+  close: () => void;
+  suppressesSubtitles: boolean;
+};
+
+export function createModalRegistry<TId extends string>(
+  descriptors: readonly ModalDescriptor<TId>[],
+) {
+  return {
+    isAnyOpen: (): boolean => descriptors.some((descriptor) => descriptor.isOpen()),
+    isAnySuppressingSubtitlesOpen: (): boolean =>
+      descriptors.some((descriptor) => descriptor.suppressesSubtitles && descriptor.isOpen()),
+    getActive: (): TId | null => descriptors.find((descriptor) => descriptor.isOpen())?.id ?? null,
+    dismissOpen: (): void => {
+      for (const descriptor of descriptors) {
+        if (descriptor.isOpen()) {
+          descriptor.close();
+        }
+      }
+    },
+  };
+}

src/renderer/renderer.ts

@@ -25,6 +25,7 @@ import type {
   SubsyncManualPayload,
   ConfigHotReloadPayload,
 } from '../types';
+import type { OverlayHostedModal } from '../shared/ipc/contracts';
 import { createKeyboardHandlers } from './handlers/keyboard.js';
 import { createGamepadController } from './handlers/gamepad-controller.js';
 import { createMouseHandlers } from './handlers/mouse.js';
@@ -53,6 +54,7 @@ import {
 } from './overlay-notifications.js';
 import { createOverlayNotificationHistoryPanel } from './overlay-notification-history.js';
 import { createRendererState } from './state.js';
+import { createModalRegistry, type ModalDescriptor } from './modal-registry.js';
 import { createSubtitleRenderer } from './subtitle-render.js';
 import { isYomitanPopupVisible, registerYomitanLookupListener } from './yomitan-popup.js';
 import {
@@ -74,36 +76,89 @@ const ctx = {
   state: createRendererState(),
 };
 
+const modalDescriptors = [
+  {
+    id: 'controller-select',
+    isOpen: () => ctx.state.controllerSelectModalOpen,
+    close: () => controllerSelectModal.closeControllerSelectModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'controller-debug',
+    isOpen: () => ctx.state.controllerDebugModalOpen,
+    close: () => controllerDebugModal.closeControllerDebugModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'subtitle-sidebar',
+    isOpen: () => ctx.state.subtitleSidebarModalOpen,
+    close: () => subtitleSidebarModal.closeSubtitleSidebarModal(),
+    suppressesSubtitles: false,
+  },
+  {
+    id: 'jimaku',
+    isOpen: () => ctx.state.jimakuModalOpen,
+    close: () => jimakuModal.closeJimakuModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'animetosho',
+    isOpen: () => ctx.state.animetoshoModalOpen,
+    close: () => animetoshoModal.closeAnimetoshoModal(),
+    suppressesSubtitles: false,
+  },
+  {
+    id: 'youtube-track-picker',
+    isOpen: () => ctx.state.youtubePickerModalOpen,
+    close: () => youtubePickerModal.closeYoutubePickerModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'playlist-browser',
+    isOpen: () => ctx.state.playlistBrowserModalOpen,
+    close: () => playlistBrowserModal.closePlaylistBrowserModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'kiku',
+    isOpen: () => ctx.state.kikuModalOpen,
+    close: () => kikuModal.cancelKikuFieldGrouping(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'runtime-options',
+    isOpen: () => ctx.state.runtimeOptionsModalOpen,
+    close: () => runtimeOptionsModal.closeRuntimeOptionsModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'character-dictionary',
+    isOpen: () => ctx.state.characterDictionaryModalOpen,
+    close: () => characterDictionaryModal.closeCharacterDictionaryModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'subsync',
+    isOpen: () => ctx.state.subsyncModalOpen,
+    close: () => subsyncModal.closeSubsyncModal(),
+    suppressesSubtitles: true,
+  },
+  {
+    id: 'session-help',
+    isOpen: () => ctx.state.sessionHelpModalOpen,
+    close: () => sessionHelpModal.closeSessionHelpModal(),
+    suppressesSubtitles: true,
+  },
+] satisfies readonly ModalDescriptor<OverlayHostedModal>[];
+
+const modalRegistry = createModalRegistry(modalDescriptors);
+
 function isAnySettingsModalOpen(): boolean {
-  return (
-    ctx.state.controllerSelectModalOpen ||
-    ctx.state.controllerDebugModalOpen ||
-    ctx.state.runtimeOptionsModalOpen ||
-    ctx.state.characterDictionaryModalOpen ||
-    ctx.state.subsyncModalOpen ||
-    ctx.state.kikuModalOpen ||
-    ctx.state.jimakuModalOpen ||
-    ctx.state.youtubePickerModalOpen ||
-    ctx.state.sessionHelpModalOpen ||
-    ctx.state.playlistBrowserModalOpen
-  );
+  return modalRegistry.isAnySuppressingSubtitlesOpen();
 }
 
 function isAnyModalOpen(): boolean {
-  return (
-    ctx.state.controllerSelectModalOpen ||
-    ctx.state.controllerDebugModalOpen ||
-    ctx.state.jimakuModalOpen ||
-    ctx.state.animetoshoModalOpen ||
-    ctx.state.kikuModalOpen ||
-    ctx.state.runtimeOptionsModalOpen ||
-    ctx.state.characterDictionaryModalOpen ||
-    ctx.state.subsyncModalOpen ||
-    ctx.state.youtubePickerModalOpen ||
-    ctx.state.sessionHelpModalOpen ||
-    ctx.state.playlistBrowserModalOpen ||
-    ctx.state.subtitleSidebarModalOpen
-  );
+  return modalRegistry.isAnyOpen();
 }
 
 function isControllerInputBlocked(): boolean {
@@ -251,59 +306,12 @@ function getSubtitleTextForPreview(data: SubtitleData | string): string {
   return '';
 }
 
-function getActiveModal(): string | null {
-  if (ctx.state.controllerSelectModalOpen) return 'controller-select';
-  if (ctx.state.controllerDebugModalOpen) return 'controller-debug';
-  if (ctx.state.subtitleSidebarModalOpen) return 'subtitle-sidebar';
-  if (ctx.state.jimakuModalOpen) return 'jimaku';
-  if (ctx.state.youtubePickerModalOpen) return 'youtube-track-picker';
-  if (ctx.state.playlistBrowserModalOpen) return 'playlist-browser';
-  if (ctx.state.kikuModalOpen) return 'kiku';
-  if (ctx.state.runtimeOptionsModalOpen) return 'runtime-options';
-  if (ctx.state.characterDictionaryModalOpen) return 'character-dictionary';
-  if (ctx.state.subsyncModalOpen) return 'subsync';
-  if (ctx.state.sessionHelpModalOpen) return 'session-help';
-  return null;
+function getActiveModal(): OverlayHostedModal | null {
+  return modalRegistry.getActive();
 }
 
 function dismissActiveUiAfterError(): void {
-  if (ctx.state.controllerSelectModalOpen) {
-    controllerSelectModal.closeControllerSelectModal();
-  }
-  if (ctx.state.controllerDebugModalOpen) {
-    controllerDebugModal.closeControllerDebugModal();
-  }
-  if (ctx.state.subtitleSidebarModalOpen) {
-    subtitleSidebarModal.closeSubtitleSidebarModal();
-  }
-  if (ctx.state.jimakuModalOpen) {
-    jimakuModal.closeJimakuModal();
-  }
-  if (ctx.state.animetoshoModalOpen) {
-    animetoshoModal.closeAnimetoshoModal();
-  }
-  if (ctx.state.youtubePickerModalOpen) {
-    youtubePickerModal.closeYoutubePickerModal();
-  }
-  if (ctx.state.playlistBrowserModalOpen) {
-    playlistBrowserModal.closePlaylistBrowserModal();
-  }
-  if (ctx.state.runtimeOptionsModalOpen) {
-    runtimeOptionsModal.closeRuntimeOptionsModal();
-  }
-  if (ctx.state.characterDictionaryModalOpen) {
-    characterDictionaryModal.closeCharacterDictionaryModal();
-  }
-  if (ctx.state.subsyncModalOpen) {
-    subsyncModal.closeSubsyncModal();
-  }
-  if (ctx.state.kikuModalOpen) {
-    kikuModal.cancelKikuFieldGrouping();
-  }
-  if (ctx.state.sessionHelpModalOpen) {
-    sessionHelpModal.closeSessionHelpModal();
-  }
-
+  modalRegistry.dismissOpen();
   syncSettingsModalSubtitleSuppression();
 }
 

stats/src/lib/formatters.test.ts

@@ -3,28 +3,52 @@ import test from 'node:test';
 
 import { epochMsFromDbTimestamp, formatRelativeDate, formatSessionDayLabel } from './formatters';
 
+const FIXED_NOW = new Date(2026, 2, 16, 12, 0, 0).getTime();
+
+function withFixedNow(run: (now: number) => void, now = FIXED_NOW): void {
+  const realNow = Date.now;
+  Date.now = () => now;
+  try {
+    run(now);
+  } finally {
+    Date.now = realNow;
+  }
+}
+
 test('formatRelativeDate: future timestamps return "just now"', () => {
-  assert.equal(formatRelativeDate(Date.now() + 60_000), 'just now');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now + 60_000), 'just now');
+  });
 });
 
 test('formatRelativeDate: 0ms ago returns "just now"', () => {
-  assert.equal(formatRelativeDate(Date.now()), 'just now');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now), 'just now');
+  });
 });
 
 test('formatRelativeDate: 30s ago returns "just now"', () => {
-  assert.equal(formatRelativeDate(Date.now() - 30_000), 'just now');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now - 30_000), 'just now');
+  });
 });
 
 test('formatRelativeDate: 5 minutes ago returns "5m ago"', () => {
-  assert.equal(formatRelativeDate(Date.now() - 5 * 60_000), '5m ago');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now - 5 * 60_000), '5m ago');
+  });
 });
 
 test('formatRelativeDate: 59 minutes ago returns "59m ago"', () => {
-  assert.equal(formatRelativeDate(Date.now() - 59 * 60_000), '59m ago');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now - 59 * 60_000), '59m ago');
+  });
 });
 
 test('formatRelativeDate: 2 hours ago returns "2h ago"', () => {
-  assert.equal(formatRelativeDate(Date.now() - 2 * 3_600_000), '2h ago');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now - 2 * 3_600_000), '2h ago');
+  });
 });
 
 test('formatRelativeDate: same calendar day can return "23h ago"', () => {
@@ -52,13 +76,17 @@ test('formatRelativeDate: two calendar days ago returns "2d ago"', () => {
 });
 
 test('formatRelativeDate: 5 days ago returns "5d ago"', () => {
-  assert.equal(formatRelativeDate(Date.now() - 5 * 86_400_000), '5d ago');
+  withFixedNow((now) => {
+    assert.equal(formatRelativeDate(now - 5 * 86_400_000), '5d ago');
+  });
 });
 
 test('formatRelativeDate: 10 days ago returns locale date string', () => {
-  const ts = Date.now() - 10 * 86_400_000;
+  withFixedNow((now) => {
+    const ts = now - 10 * 86_400_000;
     assert.equal(formatRelativeDate(ts), new Date(ts).toLocaleDateString());
   });
+});
 
 test('formatRelativeDate: prior calendar day under 24h returns "Yesterday"', () => {
   const realNow = Date.now;
@@ -81,15 +109,22 @@ test('epochMsFromDbTimestamp keeps ms timestamps as-is', () => {
 });
 
 test('formatSessionDayLabel formats today and yesterday', () => {
-  const now = Date.now();
+  withFixedNow((now) => {
     const oneDayMs = 24 * 60 * 60_000;
     assert.equal(formatSessionDayLabel(now), 'Today');
     assert.equal(formatSessionDayLabel(now - oneDayMs), 'Yesterday');
   });
+});
 
 test('formatSessionDayLabel includes year for past-year dates', () => {
-  const now = new Date();
-  const sameDayLastYear = new Date(now.getFullYear() - 1, now.getMonth(), now.getDate()).getTime();
+  const fixedNow = new Date(2027, 2, 16, 12, 0, 0).getTime();
+  withFixedNow((now) => {
+    const current = new Date(now);
+    const sameDayLastYear = new Date(
+      current.getFullYear() - 1,
+      current.getMonth(),
+      current.getDate(),
+    ).getTime();
     const label = formatSessionDayLabel(sameDayLastYear);
     const year = new Date(sameDayLastYear).getFullYear();
     assert.ok(label.includes(String(year)));
@@ -98,4 +133,5 @@ test('formatSessionDayLabel includes year for past-year dates', () => {
       day: 'numeric',
     });
     assert.notEqual(label, withoutYear);
+  }, fixedNow);
 });

stats/src/lib/formatters.ts

@@ -66,7 +66,7 @@ export function formatSessionDayLabel(sessionStartedAtMs: number): string {
   if (day === today - 1) return 'Yesterday';
 
   const date = new Date(sessionStartedAtMs);
-  const includeYear = date.getFullYear() !== new Date().getFullYear();
+  const includeYear = date.getFullYear() !== new Date(Date.now()).getFullYear();
   return date.toLocaleDateString(undefined, {
     month: 'long',
     day: 'numeric',