feat(ux): dark/light theme + en/ja i18n + user preferences
UX全体にテーマと言語設定を追加。 - lib/db/migrations/004_user_prefs.sql: users に theme/locale 列を追加(既定 dark/en) - lib/i18n/: dictionary(en/ja) + I18nProvider(クライアントcontext: locale/theme/t/setLocale/setTheme) + server.ts(SSR用 getLocale/getTheme/translate) + constants.ts - app/layout.tsx: theme/locale Cookie を読み <html class/lang> をSSR、I18nProvider でラップ(フラッシュなし) - tailwind darkMode:'class' + 全画面に dark: バリアントを一括付与(Nodeスクリプト lookbehind で安全に変換) - components/layout/ThemeToggle: 即時クラス切替+Cookie+永続化 - app/profile: テーマ/言語セレクタ、chrome翻訳(Header/ProjectNav/login/dashboard/profile) - PATCH /api/users/me: theme/locale を受理(バリデーション→400)、Cookieを設定 - E2E: locale=ja storageState で既存JAアサーションを維持、theme-i18n.spec で既定en/darkと切替を検証
This commit is contained in:
Ken Yasue
@ -2,11 +2,13 @@
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import { useState, type FormEvent } from 'react';
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import { useRouter } from 'next/navigation';
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import { useI18n } from '@/lib/i18n/I18nProvider';
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type Mode = 'login' | 'register';
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export default function LoginPage() {
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const router = useRouter();
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const { t } = useI18n();
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const [mode, setMode] = useState<Mode>('login');
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const [name, setName] = useState('');
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const [email, setEmail] = useState('');
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@ -38,22 +40,22 @@ export default function LoginPage() {
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const data = (await res.json().catch(() => null)) as {
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error?: { message?: string };
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} | null;
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setError(data?.error?.message ?? '処理に失敗しました');
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setError(data?.error?.message ?? t('auth.failed'));
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setLoading(false);
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}
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return (
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<main className="flex min-h-screen flex-col items-center justify-center bg-gray-50 p-8">
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<div className="w-full max-w-sm rounded-lg border bg-white p-8 shadow-sm">
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<main className="flex min-h-screen flex-col items-center justify-center bg-gray-50 p-8 dark:bg-gray-900">
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<div className="w-full max-w-sm rounded-lg border bg-white p-8 shadow-sm dark:border-gray-700 dark:bg-gray-800">
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<h1 className="text-2xl font-bold">
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{mode === 'login' ? 'ログイン' : '新規登録'}
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{mode === 'login' ? t('auth.login') : t('auth.register')}
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</h1>
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<form className="mt-6 space-y-4" onSubmit={onSubmit}>
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{mode === 'register' && (
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<div>
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<label htmlFor="name" className="block text-sm font-medium">
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表示名
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{t('auth.displayName')}
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</label>
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<input
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id="name"
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@ -61,14 +63,14 @@ export default function LoginPage() {
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type="text"
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value={name}
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onChange={(e) => setName(e.target.value)}
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className="mt-1 w-full rounded border px-3 py-2"
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className="mt-1 w-full rounded border px-3 py-2 dark:border-gray-600 dark:bg-gray-700"
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required
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/>
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</div>
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)}
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<div>
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<label htmlFor="email" className="block text-sm font-medium">
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メールアドレス
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{t('auth.email')}
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</label>
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<input
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id="email"
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@ -77,13 +79,13 @@ export default function LoginPage() {
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autoComplete="email"
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value={email}
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onChange={(e) => setEmail(e.target.value)}
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className="mt-1 w-full rounded border px-3 py-2"
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className="mt-1 w-full rounded border px-3 py-2 dark:border-gray-600 dark:bg-gray-700"
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required
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/>
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</div>
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<div>
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<label htmlFor="password" className="block text-sm font-medium">
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パスワード
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{t('auth.password')}
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</label>
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<input
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id="password"
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@ -94,7 +96,7 @@ export default function LoginPage() {
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}
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value={password}
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onChange={(e) => setPassword(e.target.value)}
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className="mt-1 w-full rounded border px-3 py-2"
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className="mt-1 w-full rounded border px-3 py-2 dark:border-gray-600 dark:bg-gray-700"
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required
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minLength={8}
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/>
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@ -111,19 +113,23 @@ export default function LoginPage() {
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disabled={loading}
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className="w-full rounded bg-blue-600 px-4 py-2 font-medium text-white hover:bg-blue-700 disabled:opacity-50"
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>
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{loading ? '処理中...' : mode === 'login' ? 'ログイン' : '登録する'}
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{loading
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? t('auth.processing')
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: mode === 'login'
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? t('auth.loginButton')
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: t('auth.registerButton')}
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</button>
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</form>
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<button
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type="button"
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className="mt-4 w-full text-center text-sm text-blue-600 hover:underline"
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className="mt-4 w-full text-center text-sm text-blue-600 hover:underline dark:text-blue-400"
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onClick={() => {
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setMode(mode === 'login' ? 'register' : 'login');
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setError(null);
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}}
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>
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{mode === 'login' ? '新規登録はこちら' : 'ログイン画面に戻る'}
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{mode === 'login' ? t('auth.registerHere') : t('auth.backToLogin')}
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</button>
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</div>
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</main>
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