initial commit
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
321
src/admin/pages/Login.tsx
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321
src/admin/pages/Login.tsx
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import { useState, useEffect, useRef } from 'react'
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import { Navigate } from 'react-router-dom'
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import { motion, AnimatePresence } from 'framer-motion'
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import { useAuth } from '../context/AuthContext'
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import { useAlert } from '../context/AlertContext'
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import { useTheme } from '../../context/ThemeContext'
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import { shouldShowSessionExpiredAlert, shouldShowLogoutAlert } from '../utils/api'
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import FormField from '../components/FormField'
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export default function Login() {
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const { login, verify2FA, isAuthenticated, loading: authLoading } = useAuth()
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const alert = useAlert()
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const { theme, toggleTheme } = useTheme()
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const [username, setUsername] = useState('')
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const [password, setPassword] = useState('')
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const [remember, setRemember] = useState(false)
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const [loading, setLoading] = useState(false)
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const [shake, setShake] = useState(false)
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const [animatingOut, setAnimatingOut] = useState(false)
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// 2FA state
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const [show2FA, setShow2FA] = useState(false)
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const [loginToken, setLoginToken] = useState<string | null>(null)
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const [totpCode, setTotpCode] = useState('')
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const [useBackupCode, setUseBackupCode] = useState(false)
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const totpInputRef = useRef<HTMLInputElement>(null)
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useEffect(() => {
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if (shouldShowSessionExpiredAlert()) {
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alert.warning('Vaše relace vypršela. Přihlaste se prosím znovu.')
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} else if (shouldShowLogoutAlert()) {
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alert.success('Byli jste úspěšně odhlášeni.')
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}
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}, [alert])
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// Auto-focus TOTP input
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useEffect(() => {
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if (show2FA && totpInputRef.current) {
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totpInputRef.current.focus()
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}
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}, [show2FA, useBackupCode])
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if (authLoading) {
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return (
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<div className="admin-login">
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<div className="admin-loading">
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<div className="admin-spinner" />
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</div>
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</div>
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)
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}
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if (isAuthenticated && !animatingOut) {
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return <Navigate to="/" replace />
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}
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const handleSubmit = async (e: React.FormEvent) => {
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e.preventDefault()
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setLoading(true)
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const result = await login(username, password, remember)
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if (result.requires2FA) {
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setLoginToken(result.loginToken ?? null)
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setShow2FA(true)
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setTotpCode('')
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setLoading(false)
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} else if (!result.success) {
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alert.error(result.error ?? 'Chyba přihlášení')
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setShake(true)
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setTimeout(() => setShake(false), 500)
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setLoading(false)
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} else {
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alert.success('Úspěšně přihlášeno')
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setAnimatingOut(true)
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setTimeout(() => setAnimatingOut(false), 400)
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}
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}
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const handle2FASubmit = async (e: React.FormEvent) => {
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e.preventDefault()
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if (!totpCode.trim()) return
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setLoading(true)
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const result = await verify2FA(loginToken!, totpCode.trim(), remember, useBackupCode)
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if (!result.success) {
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alert.error(result.error ?? 'Chyba ověření')
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setShake(true)
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setTimeout(() => setShake(false), 500)
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setTotpCode('')
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if (totpInputRef.current) totpInputRef.current.focus()
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setLoading(false)
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} else {
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alert.success('Úspěšně přihlášeno')
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setAnimatingOut(true)
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setTimeout(() => setAnimatingOut(false), 400)
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}
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}
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const handleBack = () => {
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setShow2FA(false)
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setLoginToken(null)
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setTotpCode('')
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setUseBackupCode(false)
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}
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return (
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<motion.div
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className="admin-login"
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initial={{ opacity: 0, scale: 0.98 }}
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animate={animatingOut
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? { scale: 1.5, opacity: 0, filter: 'blur(12px)' }
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: { scale: 1, opacity: 1, filter: 'none' }
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}
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transition={animatingOut
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? { duration: 0.25, ease: [0.4, 0, 0.2, 1] }
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: { duration: 0.25, ease: [0.4, 0, 0.2, 1] }
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}
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>
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<div className="bg-orb bg-orb-1" />
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<div className="bg-orb bg-orb-2" />
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<button
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onClick={toggleTheme}
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className="admin-login-theme-btn"
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title={theme === 'dark' ? 'Světlý režim' : 'Tmavý režim'}
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>
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<span className={`admin-theme-icon ${theme === 'light' ? 'visible' : ''}`}>
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<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
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<circle cx="12" cy="12" r="5" />
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<path d="M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42" />
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</svg>
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</span>
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<span className={`admin-theme-icon ${theme === 'dark' ? 'visible' : ''}`}>
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<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
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<path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z" />
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</svg>
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</span>
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</button>
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<AnimatePresence mode="wait">
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{!show2FA ? (
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<motion.div
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key="login"
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className="admin-login-card"
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initial={{ opacity: 0, y: 30 }}
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animate={shake
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? { opacity: 1, y: 0, x: [0, -12, 12, -8, 8, -4, 4, 0] }
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: { opacity: 1, y: 0 }
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}
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exit={{ opacity: 0, y: -20 }}
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transition={shake
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? { x: { duration: 0.5, ease: 'easeOut' } }
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: { duration: 0.3 }
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}
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>
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<div className="admin-login-header">
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<img
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src={theme === 'dark' ? '/images/logo-dark.png' : '/images/logo-light.png'}
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alt="Logo"
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className="admin-login-logo"
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/>
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<h1 className="admin-login-title">Interní systém</h1>
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<p className="admin-login-subtitle">Přihlaste se ke svému účtu</p>
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</div>
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<form onSubmit={handleSubmit} className="admin-form">
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<FormField label="Uživatelské jméno nebo e-mail">
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<input
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id="username"
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type="text"
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value={username}
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onChange={(e) => setUsername(e.target.value)}
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required
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autoComplete="username"
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className="admin-form-input"
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placeholder="Zadejte uživatelské jméno"
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/>
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</FormField>
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<FormField label="Heslo">
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<input
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id="password"
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type="password"
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value={password}
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onChange={(e) => setPassword(e.target.value)}
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required
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autoComplete="current-password"
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className="admin-form-input"
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placeholder="Zadejte heslo"
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/>
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</FormField>
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<label className="admin-form-checkbox">
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<input
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type="checkbox"
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checked={remember}
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onChange={(e) => setRemember(e.target.checked)}
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/>
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<span>Zapamatovat si mě</span>
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</label>
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<button
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type="submit"
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disabled={loading}
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className="admin-btn admin-btn-primary"
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style={{ width: '100%' }}
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>
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{loading ? (
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<>
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<div className="admin-spinner" style={{ width: 20, height: 20, borderWidth: 2 }} />
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Přihlašování...
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</>
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) : (
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'Přihlásit se'
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)}
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</button>
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</form>
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</motion.div>
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) : (
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<motion.div
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key="2fa"
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className="admin-login-card"
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initial={{ opacity: 0, y: 30 }}
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animate={shake
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? { opacity: 1, y: 0, x: [0, -12, 12, -8, 8, -4, 4, 0] }
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: { opacity: 1, y: 0 }
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}
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exit={{ opacity: 0, y: -20 }}
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transition={shake
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? { x: { duration: 0.5, ease: 'easeOut' } }
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: { duration: 0.3 }
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}
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>
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<div className="admin-login-header">
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<div className="admin-login-2fa-icon">
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<svg width="32" height="32" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
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<rect x="3" y="11" width="18" height="11" rx="2" ry="2" />
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<path d="M7 11V7a5 5 0 0 1 10 0v4" />
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</svg>
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</div>
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<h1 className="admin-login-title">Dvoufaktorové ověření</h1>
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<p className="admin-login-subtitle">
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{useBackupCode
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? 'Zadejte jeden ze záložních kódů'
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: 'Zadejte 6místný kód z autentizační aplikace'
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}
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</p>
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</div>
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<form onSubmit={handle2FASubmit} className="admin-form">
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<FormField label={useBackupCode ? 'Záložní kód' : 'Ověřovací kód'}>
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<input
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ref={totpInputRef}
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id="totp-code"
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type="text"
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inputMode={useBackupCode ? 'text' : 'numeric'}
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pattern={useBackupCode ? undefined : '[0-9]*'}
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maxLength={useBackupCode ? 8 : 6}
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value={totpCode}
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onChange={(e) => {
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const val = useBackupCode ? e.target.value : e.target.value.replace(/\D/g, '')
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setTotpCode(val)
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}}
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required
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autoComplete="one-time-code"
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className="admin-form-input"
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placeholder={useBackupCode ? 'XXXXXXXX' : '000000'}
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style={useBackupCode ? {} : {
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textAlign: 'center',
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fontSize: '1.5rem',
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letterSpacing: '0.5rem',
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fontFamily: 'monospace'
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}}
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/>
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</FormField>
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<button
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type="submit"
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disabled={loading}
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className="admin-btn admin-btn-primary"
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style={{ width: '100%' }}
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>
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{loading ? (
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<>
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<div className="admin-spinner" style={{ width: 20, height: 20, borderWidth: 2 }} />
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Ověřování...
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</>
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) : (
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'Ověřit'
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)}
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</button>
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</form>
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<div style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem', marginTop: '0.5rem' }}>
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<button
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onClick={() => {
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setUseBackupCode(!useBackupCode)
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setTotpCode('')
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}}
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className="admin-back-link"
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style={{ border: 'none', background: 'none', cursor: 'pointer' }}
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>
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{useBackupCode ? 'Použít autentizační aplikaci' : 'Použít záložní kód'}
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</button>
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<button
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onClick={handleBack}
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className="admin-back-link"
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style={{ border: 'none', background: 'none', cursor: 'pointer' }}
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>
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← Zpět na přihlášení
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</button>
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</div>
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</motion.div>
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)}
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</AnimatePresence>
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</motion.div>
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)
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}
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