274 lines
10 KiB
TypeScript
274 lines
10 KiB
TypeScript
import { type ChangeEvent, type FormEvent, useEffect, useMemo, useState } from 'react';
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import { Lock, User } from 'lucide-react';
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import { useLocation, useNavigate } from 'react-router-dom';
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import blueLogo from '../../assets/images/login/blue_logo.png';
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import loginBackground from '../../assets/images/login/login_bg.png';
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import loginIllustration from '../../assets/images/login/logo.png';
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import userIcon from '../../assets/images/login/user_icon.png';
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import { useI18n } from '../../i18n';
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import TitleBar from '../../components/layout/TitleBar';
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import { resolvePostLoginPath } from '../../router/auth';
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import {
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createCaptchaState,
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getCaptchaImageUrl,
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loginWithPassword,
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persistLoginTokens,
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type LoginFormValues,
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} from './auth';
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type FormErrors = Partial<Record<'username' | 'password' | 'code' | 'submit', string>>;
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const INITIAL_FORM: LoginFormValues = {
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username: '',
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password: '',
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code: '',
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randomStr: '',
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};
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const credentialFieldShellClass =
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'flex h-11 items-center rounded-[10px] border border-black/10 bg-gray-50 transition focus-within:border-[#2B7FFF] focus-within:ring-2 focus-within:ring-[#2B7FFF]/10 dark:border-[#2a2a2d] dark:bg-[#222225]';
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const credentialFieldIconClass = 'ml-4 mr-3 h-4 w-4 shrink-0 text-[#99A0AE] dark:text-gray-500';
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const credentialFieldInputClass =
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'h-full min-w-0 flex-1 border-0 bg-transparent pr-4 text-[14px] text-gray-800 outline-none placeholder:text-[#99A0AE] disabled:cursor-not-allowed dark:text-gray-100 dark:placeholder:text-gray-500';
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export default function LoginPage() {
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const { t } = useI18n();
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const navigate = useNavigate();
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const location = useLocation();
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const platform = (window as any).api?.platform ?? '';
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const [form, setForm] = useState<LoginFormValues>(INITIAL_FORM);
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const [errors, setErrors] = useState<FormErrors>({});
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const [submitting, setSubmitting] = useState(false);
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const [showDecorations, setShowDecorations] = useState(false);
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const captchaUrl = useMemo(
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() => (form.randomStr ? getCaptchaImageUrl(form.randomStr) : ''),
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[form.randomStr],
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);
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useEffect(() => {
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const frameId = window.requestAnimationFrame(() => {
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setShowDecorations(true);
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setForm((current) => ({ ...current, ...createCaptchaState() }));
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});
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return () => {
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window.cancelAnimationFrame(frameId);
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};
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}, []);
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function refreshCaptcha(clearSubmitError = true): void {
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setForm((current) => ({
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...current,
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code: '',
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...createCaptchaState(),
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}));
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setErrors((current) => ({
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...current,
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code: undefined,
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submit: clearSubmitError ? undefined : current.submit,
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}));
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}
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function updateField<K extends keyof LoginFormValues>(key: K, value: LoginFormValues[K]): void {
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setForm((current) => ({ ...current, [key]: value }));
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setErrors((current) => ({ ...current, [key]: undefined, submit: undefined }));
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}
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function validate(values: LoginFormValues): FormErrors {
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const nextErrors: FormErrors = {};
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if (!values.username.trim()) nextErrors.username = t('login.usernameRequired');
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if (!values.password.trim()) nextErrors.password = t('login.passwordRequired');
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if (!values.code.trim()) nextErrors.code = t('login.codeRequired');
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return nextErrors;
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}
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async function handleSubmit(event: FormEvent<HTMLFormElement>): Promise<void> {
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event.preventDefault();
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const trimmedValues: LoginFormValues = {
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...form,
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username: form.username.trim(),
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password: form.password.trim(),
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code: form.code.trim(),
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};
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const nextErrors = validate(trimmedValues);
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if (Object.keys(nextErrors).length > 0) {
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setErrors(nextErrors);
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return;
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}
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setSubmitting(true);
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setErrors({});
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try {
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const result = await loginWithPassword(trimmedValues);
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persistLoginTokens(result);
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navigate(resolvePostLoginPath(location.state as { from?: string } | null), { replace: true });
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} catch (error) {
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setErrors({
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submit: error instanceof Error ? error.message : t('login.submitFailed'),
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});
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refreshCaptcha(false);
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} finally {
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setSubmitting(false);
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}
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}
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function handleInputChange(
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key: 'username' | 'password' | 'code',
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event: ChangeEvent<HTMLInputElement>,
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): void {
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updateField(key, event.target.value);
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}
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return (
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<div
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className="relative flex h-screen flex-col overflow-hidden bg-[linear-gradient(135deg,#eef5ff_0%,#f8fbff_42%,#ffffff_100%)] dark:bg-[#111214]"
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>
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{showDecorations ? (
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<img
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aria-hidden="true"
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alt=""
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className="pointer-events-none absolute inset-0 h-full w-full object-cover"
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decoding="async"
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fetchPriority="low"
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src={loginBackground}
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/>
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) : null}
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<div className="relative z-20">
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<TitleBar variant="light" controlsTheme="white" />
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</div>
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<main
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className={['relative z-10 box-border flex flex-auto pl-2 pr-2 pb-2', platform !== 'linux' ? 'pt-2' : 'pt-11'].join(' ')}
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>
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<div className="box-border w-[836px] rounded-2xl border border-black/5 bg-white/95 p-8 shadow-[0_18px_50px_rgba(15,23,42,0.12)] backdrop-blur-sm dark:border-[#2a2a2d] dark:bg-[#1b1b1d]/95">
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<div className="flex items-center">
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<img className="h-12 w-12" src={blueLogo} alt="zn-ai" />
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</div>
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<div className="mb-6 box-border flex flex-col items-center justify-center pt-10">
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<img className="mb-3 h-20 w-20" src={userIcon} alt="" />
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<div className="mb-1 text-[24px] leading-[32px] font-medium text-gray-800 dark:text-gray-100">
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{t('login.title')}
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</div>
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<div className="text-[16px] leading-[24px] text-gray-500 dark:text-gray-400">
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{t('login.subtitle')}
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</div>
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</div>
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<form className="mx-auto flex w-[392px] flex-col gap-4" onSubmit={handleSubmit}>
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<div>
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<label className="mb-2 block text-[14px] text-gray-600 dark:text-gray-300" htmlFor="login-username">
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{t('login.username')}
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</label>
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<div className={credentialFieldShellClass}>
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<User aria-hidden="true" className={credentialFieldIconClass} />
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<input
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id="login-username"
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className={credentialFieldInputClass}
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autoComplete="username"
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disabled={submitting}
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placeholder={t('login.usernamePlaceholder')}
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value={form.username}
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onChange={(event) => handleInputChange('username', event)}
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/>
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</div>
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{errors.username ? <div className="pt-2 text-[12px] text-[#dc2626]">{errors.username}</div> : null}
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</div>
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<div>
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<label className="mb-2 block text-[14px] text-gray-600 dark:text-gray-300" htmlFor="login-password">
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{t('login.password')}
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</label>
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<div className={credentialFieldShellClass}>
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<Lock aria-hidden="true" className={credentialFieldIconClass} />
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<input
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id="login-password"
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className={credentialFieldInputClass}
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autoComplete="current-password"
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disabled={submitting}
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placeholder={t('login.passwordPlaceholder')}
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type="password"
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value={form.password}
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onChange={(event) => handleInputChange('password', event)}
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/>
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</div>
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{errors.password ? <div className="pt-2 text-[12px] text-[#dc2626]">{errors.password}</div> : null}
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</div>
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<div>
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<label className="mb-2 block text-[14px] text-gray-600 dark:text-gray-300" htmlFor="login-code">
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{t('login.verificationCode')}
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</label>
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<div className="flex gap-3">
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<input
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id="login-code"
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className="h-10 min-w-0 flex-1 rounded-[10px] border border-black/10 bg-gray-50 px-4 text-[14px] text-gray-800 outline-none transition focus:border-[#2B7FFF] dark:border-[#2a2a2d] dark:bg-[#222225] dark:text-gray-100"
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autoComplete="off"
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disabled={submitting}
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placeholder={t('login.verificationCodePlaceholder')}
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value={form.code}
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onChange={(event) => handleInputChange('code', event)}
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/>
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<button
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type="button"
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className="h-10 w-24 overflow-hidden rounded-[10px] border border-black/10 bg-white p-0 transition hover:border-[#2B7FFF] disabled:cursor-not-allowed dark:border-[#2a2a2d] dark:bg-[#222225]"
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disabled={submitting || !captchaUrl}
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onClick={refreshCaptcha}
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>
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{captchaUrl ? (
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<img
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className="h-full w-full object-cover"
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src={captchaUrl}
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alt={t('login.captchaAlt')}
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/>
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) : (
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<span className="text-[12px] text-[#99A0AE]">{t('login.loadingCaptcha')}</span>
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)}
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</button>
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</div>
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{errors.code ? <div className="pt-2 text-[12px] text-[#dc2626]">{errors.code}</div> : null}
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</div>
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{errors.submit ? (
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<div className="rounded-[10px] border border-[#fecaca] bg-[#fef2f2] px-3 py-2 text-[13px] text-[#b91c1c]">
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{errors.submit}
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</div>
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) : null}
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<button
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type="submit"
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className="mt-4 w-full rounded-lg bg-blue-600 py-2 text-white transition hover:bg-blue-700 disabled:cursor-not-allowed disabled:bg-blue-300"
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disabled={submitting}
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>
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{submitting ? t('login.submitting') : t('login.submit')}
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</button>
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</form>
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</div>
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{showDecorations ? (
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<img
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aria-hidden="true"
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alt=""
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className="ml-2 w-[540px] max-w-[48vw] self-center object-contain"
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decoding="async"
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fetchPriority="low"
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loading="eager"
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src={loginIllustration}
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/>
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) : null}
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</main>
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</div>
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);
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}
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