// src/renderer/components/SettingsModal.tsx
// 설계서 03: Settings React Modal — General(음성 모드+핫키)/Audio/STT/LLM 탭

import { useState, useEffect, useCallback } from 'react'
import {
  Dialog,
  DialogTitle,
  DialogContent,
  Tabs,
  Tab,
  Box,
  TextField,
  Select,
  MenuItem,
  Switch,
  FormControlLabel,
  Typography,
  IconButton,
  Divider,
  InputLabel,
  FormControl,
  Button,
  Chip,
  Stack,
  Paper,
} from '@mui/material'
import CloseIcon from '@mui/icons-material/Close'
import KeyboardIcon from '@mui/icons-material/Keyboard'
import EditIcon from '@mui/icons-material/Edit'
import MicIcon from '@mui/icons-material/Mic'
import LockIcon from '@mui/icons-material/Lock'
import CheckCircleIcon from '@mui/icons-material/CheckCircle'
import CancelIcon from '@mui/icons-material/Cancel'
import { d3roPalette, d3roFontMono, d3roShadow } from '../theme'
import { HotkeyRecordModal } from './HotkeyRecordModal'
import { LicenseTab } from './LicenseTab'
import { useI18n, LOCALE_META } from '../i18n'
import type { Locale } from '../i18n'
import type { ThemeMode, AppConfig, HotkeyBinding, AudioDevice } from '@shared/types'
import { Feature } from '@shared/types'

interface SettingsModalProps {
  open: boolean
  onClose: () => void
}

interface TabPanelProps {
  children: React.ReactNode
  value: number
  index: number
}

function TabPanel({ children, value, index }: TabPanelProps): React.ReactElement | null {
  if (value !== index) return null
  return <Box sx={{ pt: 2 }}>{children}</Box>
}

// ── 핫키 표시 컴포넌트 ──────────────────────────────────
function HotkeyDisplay({
  binding,
  onEdit,
  label,
  notSetLabel,
}: {
  binding: HotkeyBinding | null
  onEdit: () => void
  label: string
  notSetLabel: string
}): React.ReactElement {
  return (
    <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
      <Typography variant="body2" sx={{ color: d3roPalette.text.secondary, minWidth: 40 }}>
        {label}
      </Typography>
      {binding ? (
        <Stack direction="row" spacing={0.5} alignItems="center">
          {binding.displayLabel.split(' + ').map((key) => (
            <Chip
              key={key}
              label={key}
              size="small"
              sx={{
                fontWeight: 700,
                fontSize: '11px',
                bgcolor: d3roPalette.bg.elevated,
                color: d3roPalette.text.primary,
                border: `1px solid ${d3roPalette.border.default}`,
                borderRadius: '6px',
                height: 28,
              }}
            />
          ))}
        </Stack>
      ) : (
        <Typography variant="body2" sx={{ color: d3roPalette.text.disabled }}>
          {notSetLabel}
        </Typography>
      )}
      <IconButton size="small" onClick={onEdit} sx={{ color: d3roPalette.text.inactive, ml: 'auto' }}>
        <EditIcon sx={{ fontSize: 16 }} />
      </IconButton>
    </Box>
  )
}

// ── 음성 모드 카드 ──────────────────────────────────────
function VoiceModeCard({
  title,
  description,
  enabled,
  onToggle,
  disabled,
  enabledLabel,
  disabledLabel,
  children,
}: {
  title: string
  description: string
  enabled: boolean
  onToggle: (enabled: boolean) => void
  disabled?: boolean
  enabledLabel: string
  disabledLabel: string
  children?: React.ReactNode
}): React.ReactElement {
  return (
    <Paper
      elevation={0}
      sx={{
        p: 2,
        bgcolor: d3roPalette.bg.inset,
        borderRadius: '10px',
        border: 'none',
        boxShadow: d3roShadow.inset,
      }}
    >
      <Box sx={{ display: 'flex', alignItems: 'flex-start', justifyContent: 'space-between' }}>
        <Box sx={{ flex: 1 }}>
          <Box sx={{ display: 'flex', alignItems: 'center', gap: 1, mb: 0.5 }}>
            <Typography
              variant="subtitle2"
              sx={{ fontWeight: 700, fontFamily: d3roFontMono, fontSize: '12px', letterSpacing: '0.5px' }}
            >
              {title}
            </Typography>
            <FormControlLabel
              control={
                <Switch
                  checked={enabled}
                  onChange={(e) => onToggle(e.target.checked)}
                  disabled={disabled}
                  size="small"
                  sx={{
                    '& .MuiSwitch-switchBase.Mui-checked': { color: d3roPalette.tag.green },
                    '& .MuiSwitch-switchBase.Mui-checked + .MuiSwitch-track': {
                      backgroundColor: d3roPalette.tag.green,
                    },
                  }}
                />
              }
              label={
                <Chip
                  label={enabled ? enabledLabel : disabledLabel}
                  size="small"
                  sx={{
                    fontSize: '10px',
                    fontWeight: 700,
                    height: 20,
                    bgcolor: enabled ? d3roPalette.tag.greenBg : 'transparent',
                    color: enabled ? d3roPalette.tag.green : d3roPalette.text.disabled,
                    border: enabled ? 'none' : `1px solid ${d3roPalette.border.subtle}`,
                  }}
                />
              }
              sx={{ ml: 0, mr: 0 }}
            />
          </Box>
          <Typography variant="body2" sx={{ color: d3roPalette.text.inactive, fontSize: '11px' }}>
            {description}
          </Typography>
        </Box>
      </Box>
      {children && <Box sx={{ mt: 1.5 }}>{children}</Box>}
    </Paper>
  )
}

export function SettingsModal({ open, onClose }: SettingsModalProps): React.ReactElement {
  const { t, locale, setLocale } = useI18n()
  const [activeTab, setActiveTab] = useState(0)
  const [config, setConfig] = useState<Partial<AppConfig>>({})
  const [loading, setLoading] = useState(true)

  // 음성 모드 상태
  const [dictationEnabled, setDictationEnabled] = useState(true)
  const [dictationBinding, setDictationBinding] = useState<HotkeyBinding | null>(null)
  const [handsFreeEnabled, setHandsFreeEnabled] = useState(false)
  const [handsFreeBinding, setHandsFreeBinding] = useState<HotkeyBinding | null>(null)
  const [captionBinding, setCaptionBinding] = useState<HotkeyBinding | null>(null)
  const [hotkeyGlobalEnabled, setHotkeyGlobalEnabled] = useState(true)

  // 핫키 녹화 모달
  const [hotkeyModalOpen, setHotkeyModalOpen] = useState(false)
  const [hotkeyModalTarget, setHotkeyModalTarget] = useState<'dictation' | 'handsFree' | 'caption'>('dictation')

  // 오디오 디바이스
  const [audioDevices, setAudioDevices] = useState<AudioDevice[]>([])
  const [selectedDeviceId, setSelectedDeviceId] = useState<string>('default')
  const [micTesting, setMicTesting] = useState(false)
  const [micLevel, setMicLevel] = useState(0)

  // 설정 로드
  useEffect(() => {
    if (!open) return
    setLoading(true)

    Promise.all([
      window.electronAPI.config.getAll(),
      window.electronAPI.hotkey.getDictationShortcut(),
      window.electronAPI.hotkey.getHandsFreeShortcut(),
      window.electronAPI.hotkey.getCaptionShortcut(),
      window.electronAPI.hotkey.isEnabled(),
    ])
      .then(([configResult, dictResult, hfResult, capResult, enabledResult]) => {
        if (configResult.success) setConfig(configResult.data)
        if (dictResult.success && dictResult.data) setDictationBinding(dictResult.data)
        if (hfResult.success && hfResult.data) setHandsFreeBinding(hfResult.data)
        if (capResult.success && capResult.data) setCaptionBinding(capResult.data)
        if (enabledResult.success) {
          setHotkeyGlobalEnabled(enabledResult.data)
          setDictationEnabled(enabledResult.data)
        }
      })
      .finally(() => setLoading(false))

    Promise.all([
      window.electronAPI.audio.getDevices(),
      window.electronAPI.audio.getSelectedDevice(),
    ]).then(([devicesResult, selectedResult]) => {
      if (devicesResult.success) setAudioDevices(devicesResult.data)
      if (selectedResult.success && selectedResult.data) setSelectedDeviceId(selectedResult.data)
    })
  }, [open])

  const updateConfig = useCallback((key: keyof AppConfig, value: AppConfig[keyof AppConfig]) => {
    setConfig((prev) => ({ ...prev, [key]: value }))
    window.electronAPI.config.set({ key, value })
  }, [])

  const handleDictationToggle = useCallback(
    (enabled: boolean) => {
      setDictationEnabled(enabled)
      window.electronAPI.hotkey.setEnabled({ enabled })
      if (!enabled && handsFreeEnabled) {
        setHandsFreeEnabled(false)
      }
    },
    [handsFreeEnabled]
  )

  const handleHandsFreeToggle = useCallback((enabled: boolean) => {
    if (enabled && !handsFreeBinding) {
      setHotkeyModalTarget('handsFree')
      setHotkeyModalOpen(true)
      return
    }
    setHandsFreeEnabled(enabled)
  }, [handsFreeBinding])

  const handleHotkeySave = useCallback(
    (binding: HotkeyBinding) => {
      if (hotkeyModalTarget === 'dictation') {
        setDictationBinding(binding)
        window.electronAPI.hotkey.setDictationShortcut({ binding })
        setDictationEnabled(true)
        window.electronAPI.hotkey.setEnabled({ enabled: true })
      } else if (hotkeyModalTarget === 'handsFree') {
        setHandsFreeBinding(binding)
        window.electronAPI.hotkey.setHandsFreeShortcut({ binding })
        setHandsFreeEnabled(true)
      } else {
        setCaptionBinding(binding)
        window.electronAPI.hotkey.setCaptionShortcut({ binding })
      }
    },
    [hotkeyModalTarget]
  )

  const openHotkeyModal = useCallback((target: 'dictation' | 'handsFree' | 'caption') => {
    setHotkeyModalTarget(target)
    setHotkeyModalOpen(true)
  }, [])

  const handleLanguageChange = useCallback((newLocale: string) => {
    setLocale(newLocale as Locale)
    setConfig((prev) => ({ ...prev, language: newLocale }))
  }, [setLocale])

  if (loading) return <Dialog open={open} onClose={onClose}><DialogContent /></Dialog>

  return (
    <>
      <Dialog
        open={open}
        onClose={onClose}
        fullWidth
        maxWidth="sm"
        disableEnforceFocus
        PaperProps={{
          sx: {
            bgcolor: d3roPalette.bg.chassis,
            backgroundImage: 'none',
            border: `1px solid ${d3roPalette.border.subtle}`,
            boxShadow: d3roShadow.chassis,
          },
        }}
      >
        <DialogTitle
          sx={{
            display: 'flex',
            justifyContent: 'space-between',
            alignItems: 'center',
            fontFamily: d3roFontMono,
            fontWeight: 700,
            fontSize: '14px',
            letterSpacing: '1px',
            textTransform: 'uppercase',
            color: d3roPalette.accent.amber,
            py: 1.5,
          }}
        >
          {t('settings.title')}
          <IconButton onClick={onClose} size="small" sx={{ color: d3roPalette.text.inactive }}>
            <CloseIcon sx={{ fontSize: 18 }} />
          </IconButton>
        </DialogTitle>
        <Divider sx={{ borderColor: d3roPalette.border.subtle }} />
        <DialogContent sx={{ bgcolor: d3roPalette.bg.app, p: 0 }}>
          <Tabs
            value={activeTab}
            onChange={(_, v: number) => setActiveTab(v)}
            variant="scrollable"
            scrollButtons={false}
            sx={{
              bgcolor: d3roPalette.bg.sidebar,
              borderBottom: `1px solid ${d3roPalette.border.subtle}`,
              minHeight: 40,
              '& .MuiTab-root': {
                fontFamily: d3roFontMono,
                fontSize: '11px',
                fontWeight: 700,
                letterSpacing: '0.5px',
                textTransform: 'uppercase',
                color: d3roPalette.text.inactive,
                minHeight: 40,
                py: 1,
                '&.Mui-selected': { color: d3roPalette.accent.amber },
              },
              '& .MuiTabs-indicator': { bgcolor: d3roPalette.accent.amber, height: 2 },
            }}
          >
            <Tab label={t('settings.tabs.general')} icon={<KeyboardIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
            <Tab label={t('settings.tabs.audio')} icon={<MicIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
            <Tab label={t('settings.tabs.stt')} />
            <Tab label={t('settings.tabs.llm')} />
            <Tab label={t('license.nav')} icon={<LockIcon sx={{ fontSize: 14 }} />} iconPosition="start" />
            <Tab label={t('settings.tabs.about')} />
          </Tabs>
          <Box sx={{ p: 3 }}>

          {/* ── 일반 탭 ─────────────────────────────── */}
          <TabPanel value={activeTab} index={0}>
            <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2.5 }}>
              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.shortcuts')}
              </Typography>

              <Stack spacing={1.5}>
                <VoiceModeCard
                  title={t('settings.dictation')}
                  description={t('settings.dictation.desc')}
                  enabled={dictationEnabled}
                  onToggle={handleDictationToggle}
                  enabledLabel={t('settings.enabled')}
                  disabledLabel={t('settings.disabled')}
                >
                  <HotkeyDisplay
                    binding={dictationBinding}
                    onEdit={() => openHotkeyModal('dictation')}
                    label={t('settings.key')}
                    notSetLabel={t('settings.notSet')}
                  />
                </VoiceModeCard>

                <VoiceModeCard
                  title={t('settings.agent')}
                  description={
                    dictationBinding
                      ? t('settings.agent.descWithKey', { key: dictationBinding.displayLabel })
                      : t('settings.agent.descNoKey')
                  }
                  enabled={dictationEnabled}
                  onToggle={handleDictationToggle}
                  disabled={!dictationEnabled}
                  enabledLabel={t('settings.enabled')}
                  disabledLabel={t('settings.disabled')}
                />

                <VoiceModeCard
                  title={t('settings.oneTouch')}
                  description={t('settings.oneTouch.desc')}
                  enabled={handsFreeEnabled}
                  onToggle={handleHandsFreeToggle}
                  disabled={!dictationEnabled}
                  enabledLabel={t('settings.enabled')}
                  disabledLabel={t('settings.disabled')}
                >
                  <HotkeyDisplay
                    binding={handsFreeBinding}
                    onEdit={() => openHotkeyModal('handsFree')}
                    label={t('settings.key')}
                    notSetLabel={t('settings.notSet')}
                  />
                </VoiceModeCard>

                <VoiceModeCard
                  title={t('settings.caption')}
                  description={t('settings.caption.desc')}
                  enabled={true}
                  enabledLabel={t('settings.enabled')}
                  disabledLabel={t('settings.disabled')}
                >
                  <HotkeyDisplay
                    binding={captionBinding}
                    onEdit={() => openHotkeyModal('caption')}
                    label={t('settings.key')}
                    notSetLabel={t('settings.notSet')}
                  />
                </VoiceModeCard>
              </Stack>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.interface')}
              </Typography>

              <FormControl size="small">
                <InputLabel>{t('settings.theme')}</InputLabel>
                <Select
                  label={t('settings.theme')}
                  value={config.theme ?? 'auto'}
                  onChange={(e) => updateConfig('theme', e.target.value as ThemeMode)}
                >
                  <MenuItem value="auto">{t('settings.theme.system')}</MenuItem>
                  <MenuItem value="light">{t('settings.theme.light')}</MenuItem>
                  <MenuItem value="dark">{t('settings.theme.dark')}</MenuItem>
                  <MenuItem value="nord">{t('settings.theme.nord')}</MenuItem>
                  <MenuItem value="solarized">{t('settings.theme.solarized')}</MenuItem>
                  <MenuItem value="catppuccin">{t('settings.theme.catppuccin')}</MenuItem>
                  <MenuItem value="dracula">{t('settings.theme.dracula')}</MenuItem>
                </Select>
              </FormControl>

              <FormControl size="small">
                <InputLabel>{t('settings.language')}</InputLabel>
                <Select
                  label={t('settings.language')}
                  value={locale}
                  onChange={(e) => handleLanguageChange(e.target.value)}
                >
                  {LOCALE_META.map((meta) => (
                    <MenuItem key={meta.code} value={meta.code}>
                      {meta.nativeName}
                    </MenuItem>
                  ))}
                </Select>
              </FormControl>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.appBehavior')}
              </Typography>

              <FormControlLabel
                control={<Switch checked={config.closeToTray ?? true} onChange={(e) => updateConfig('closeToTray', e.target.checked)} />}
                label={t('settings.closeToTray')}
              />
              <FormControlLabel
                control={<Switch checked={config.autoLaunch ?? false} onChange={(e) => updateConfig('autoLaunch', e.target.checked)} />}
                label={t('settings.autoLaunch')}
              />
              <FormControlLabel
                control={<Switch checked={config.autoInsert ?? true} onChange={(e) => updateConfig('autoInsert', e.target.checked)} />}
                label={t('settings.autoInsert')}
              />
              <FormControlLabel
                control={<Switch checked={config.soundEnabled ?? true} onChange={(e) => updateConfig('soundEnabled', e.target.checked)} />}
                label={t('settings.soundEffects')}
              />
            </Box>
          </TabPanel>

          {/* ── 오디오 탭 ────────────────────────────── */}
          <TabPanel value={activeTab} index={1}>
            <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2 }}>
              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.microphone')}
              </Typography>

              <FormControl size="small">
                <InputLabel>{t('settings.inputDevice')}</InputLabel>
                <Select
                  label={t('settings.inputDevice')}
                  value={selectedDeviceId}
                  onChange={(e) => {
                    const deviceId = e.target.value
                    setSelectedDeviceId(deviceId)
                    window.electronAPI.audio.setSelectedDevice({ deviceId })
                  }}
                  startAdornment={<MicIcon sx={{ color: d3roPalette.text.inactive, mr: 1, fontSize: 18 }} />}
                >
                  {audioDevices.map((device, idx) => (
                    <MenuItem key={`${device.deviceId}-${idx}`} value={device.deviceId}>
                      {device.label}{device.isDefault ? ` ${t('settings.deviceDefault')}` : ''}
                    </MenuItem>
                  ))}
                </Select>
              </FormControl>

              <Box sx={{ display: 'flex', alignItems: 'center', gap: 2 }}>
                <Button
                  variant={micTesting ? 'contained' : 'outlined'}
                  size="small"
                  onClick={async () => {
                    if (micTesting) {
                      setMicTesting(false)
                      setMicLevel(0)
                    } else {
                      setMicTesting(true)
                      setMicLevel(0)
                      const unsub = window.electronAPI.audio.onTestLevel((e) => {
                        setMicLevel(e.level)
                        if (e.level === 0) {
                          setMicTesting(false)
                          unsub()
                        }
                      })
                      await window.electronAPI.audio.testDevice({ deviceId: 'default' })
                    }
                  }}
                  sx={{ fontFamily: d3roFontMono, fontSize: '11px', minWidth: 80 }}
                >
                  {micTesting ? t('common.stop').toUpperCase() : t('common.test').toUpperCase()}
                </Button>
                <Box sx={{ flex: 1, height: 8, bgcolor: d3roPalette.bg.inset, borderRadius: '4px', overflow: 'hidden', boxShadow: d3roShadow.inset }}>
                  <Box sx={{ width: `${Math.min(100, micLevel * 100)}%`, height: '100%', bgcolor: micLevel > 0.7 ? d3roPalette.tag.red : d3roPalette.accent.amber, borderRadius: '4px', transition: 'width 100ms ease-out' }} />
                </Box>
              </Box>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.captionAudio')}
              </Typography>

              <FormControl size="small">
                <InputLabel>{t('settings.captionSource')}</InputLabel>
                <Select
                  label={t('settings.captionSource')}
                  value={(config as Record<string, unknown>)['captionAudioSource'] as string ?? 'mic'}
                  onChange={(e) => {
                    updateConfig('captionAudioSource' as keyof AppConfig, e.target.value as never)
                    // CaptionService 설정도 갱신
                    window.electronAPI.caption.setConfig({ audioSource: e.target.value as 'mic' | 'system' | 'both' })
                  }}
                >
                  <MenuItem value="mic">{t('settings.captionSource.mic')}</MenuItem>
                  <MenuItem value="system">{t('settings.captionSource.system')}</MenuItem>
                  <MenuItem value="both">{t('settings.captionSource.both')}</MenuItem>
                </Select>
              </FormControl>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.textInsert')}
              </Typography>

              <FormControl size="small">
                <InputLabel>{t('settings.insertMethod')}</InputLabel>
                <Select
                  label={t('settings.insertMethod')}
                  value={config.insertMethod ?? 'clipboard'}
                  onChange={(e) => updateConfig('insertMethod', e.target.value as 'clipboard' | 'keyboard')}
                >
                  <MenuItem value="clipboard">{t('settings.insertClipboard')}</MenuItem>
                  <MenuItem value="keyboard">{t('settings.insertKeyboard')}</MenuItem>
                </Select>
              </FormControl>
            </Box>
          </TabPanel>

          {/* ── STT 탭 ───────────────────────────────── */}
          <TabPanel value={activeTab} index={2}>
            <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2 }}>
              <FormControl size="small">
                <InputLabel>{t('settings.whisperModel')}</InputLabel>
                <Select
                  label={t('settings.whisperModel')}
                  value={config.sttModelId ?? 'base'}
                  onChange={(e) => updateConfig('sttModelId', e.target.value)}
                >
                  <MenuItem value="tiny">{t('settings.model.tiny')}</MenuItem>
                  <MenuItem value="base">{t('settings.model.base')}</MenuItem>
                  <MenuItem value="small">{t('settings.model.small')}</MenuItem>
                  <MenuItem value="medium">{t('settings.model.medium')}</MenuItem>
                  <MenuItem value="large-v3">{t('settings.model.large')}</MenuItem>
                </Select>
              </FormControl>

              <FormControl size="small">
                <InputLabel>{t('settings.sttLanguage')}</InputLabel>
                <Select
                  label={t('settings.sttLanguage')}
                  value={config.sttLanguage ?? 'auto'}
                  onChange={(e) => updateConfig('sttLanguage', e.target.value)}
                >
                  <MenuItem value="auto">{t('settings.sttLang.auto')}</MenuItem>
                  <MenuItem value="ko">{t('settings.sttLang.ko')}</MenuItem>
                  <MenuItem value="en">{t('settings.sttLang.en')}</MenuItem>
                  <MenuItem value="ja">{t('settings.sttLang.ja')}</MenuItem>
                  <MenuItem value="zh">{t('settings.sttLang.zh')}</MenuItem>
                </Select>
              </FormControl>
            </Box>
          </TabPanel>

          {/* ── LLM 탭 ──────────────────────────────── */}
          <TabPanel value={activeTab} index={3}>
            <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2 }}>
              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.ollamaServer')}
              </Typography>

              <TextField
                label={t('settings.ollamaUrl')}
                value={config.ollamaServerUrl ?? 'http://localhost:11434'}
                onChange={(e) => updateConfig('ollamaServerUrl', e.target.value)}
                fullWidth
              />

              <Typography variant="body2" sx={{ color: d3roPalette.text.inactive, fontSize: '11px' }}>
                {t('settings.ollamaHint')}
              </Typography>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.postProcess')}
              </Typography>

              <FormControl size="small">
                <InputLabel>{t('settings.defaultAction')}</InputLabel>
                <Select
                  label={t('settings.defaultAction')}
                  value={config.defaultLLMAction ?? 'refine'}
                  onChange={(e) => updateConfig('defaultLLMAction', e.target.value)}
                >
                  <MenuItem value="none">{t('settings.action.none')}</MenuItem>
                  <MenuItem value="refine">{t('settings.action.refine')}</MenuItem>
                  <MenuItem value="translate">{t('settings.action.translate')}</MenuItem>
                  <MenuItem value="summarize">{t('settings.action.summarize')}</MenuItem>
                  <MenuItem value="grammar">{t('settings.action.grammar')}</MenuItem>
                  <MenuItem value="custom">{t('settings.action.custom')}</MenuItem>
                </Select>
              </FormControl>

              <Typography variant="body2" sx={{ color: d3roPalette.text.inactive, fontSize: '11px' }}>
                {t('settings.actionHint')}
              </Typography>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              {/* Phase 10: 음성 명령어 토글 */}
              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                {t('settings.voiceCommands')}
              </Typography>
              <FormControlLabel
                control={
                  <Switch
                    checked={(config as Record<string, unknown>)['voiceCommandsEnabled'] as boolean ?? false}
                    onChange={async (_, checked) => {
                      updateConfig('voiceCommandsEnabled' as keyof AppConfig, checked as never)
                      await window.electronAPI.voiceCommand.setEnabled({ enabled: checked })
                    }}
                    size="small"
                  />
                }
                label={
                  <Box>
                    <Typography variant="body2">{t('settings.voiceCommands')}</Typography>
                    <Typography variant="caption" sx={{ color: d3roPalette.text.inactive }}>{t('settings.voiceCommands.desc')}</Typography>
                  </Box>
                }
              />

              {/* Phase 10: 화면 컨텍스트 토글 */}
              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px', mt: 1 }}>
                {t('settings.screenContext')}
              </Typography>
              <FormControlLabel
                control={
                  <Switch
                    checked={config.screenContextEnabled ?? false}
                    onChange={async (_, checked) => {
                      updateConfig('screenContextEnabled', checked)
                      await window.electronAPI.context.setEnabled({ enabled: checked })
                    }}
                    size="small"
                  />
                }
                label={
                  <Box>
                    <Typography variant="body2">{t('settings.screenContext')}</Typography>
                    <Typography variant="caption" sx={{ color: d3roPalette.text.inactive }}>{t('settings.screenContext.desc')}</Typography>
                  </Box>
                }
              />
            </Box>
          </TabPanel>

          {/* ── 라이선스 탭 ────────────────────────────── */}
          <TabPanel value={activeTab} index={4}>
            <LicenseTab />
          </TabPanel>

          {/* ── 정보 탭 ──────────────────────────────── */}
          <TabPanel value={activeTab} index={5}>
            <Box sx={{ display: 'flex', flexDirection: 'column', gap: 2.5 }}>
              <Typography variant="overline" sx={{ color: d3roPalette.text.label, letterSpacing: '1.5px' }}>
                D3RO-VOICE
              </Typography>

              <Box>
                <Typography variant="body2" sx={{ fontWeight: 600 }}>{t('settings.about.version')}</Typography>
                <Typography variant="body2" color="text.secondary">v1.0.0</Typography>
              </Box>

              <Box>
                <Typography variant="body2" sx={{ fontWeight: 600 }}>{t('settings.about.techStack')}</Typography>
                <Typography variant="body2" color="text.secondary">{t('settings.about.techStackValue')}</Typography>
              </Box>

              <Box>
                <Typography variant="body2" sx={{ fontWeight: 600 }}>{t('settings.about.voiceEngine')}</Typography>
                <Typography variant="body2" color="text.secondary">{t('settings.about.voiceEngineValue')}</Typography>
              </Box>

              <Divider sx={{ borderColor: d3roPalette.border.subtle }} />

              <Typography variant="body2" color="text.secondary" sx={{ fontSize: '11px', mb: 2 }}>
                {t('settings.about.description')}
              </Typography>

              <Button
                variant="outlined"
                size="small"
                onClick={() => {
                  window.electronAPI.config.set({
                    key: 'onboardingCompleted' as keyof import('@shared/types').AppConfig,
                    value: false as never,
                  })
                  onClose()
                  setTimeout(() => window.location.reload(), 300)
                }}
                sx={{ fontFamily: d3roFontMono, fontSize: '11px' }}
              >
                {t('settings.about.restartOnboarding')}
              </Button>
            </Box>
          </TabPanel>
          </Box>
        </DialogContent>
      </Dialog>

      <HotkeyRecordModal
        open={hotkeyModalOpen}
        onClose={() => setHotkeyModalOpen(false)}
        onSave={handleHotkeySave}
        currentBinding={hotkeyModalTarget === 'dictation' ? dictationBinding : hotkeyModalTarget === 'handsFree' ? handsFreeBinding : captionBinding}
        title={hotkeyModalTarget === 'dictation' ? t('hotkey.dictationTitle') : hotkeyModalTarget === 'handsFree' ? t('hotkey.oneTouchTitle') : t('hotkey.captionTitle')}
      />
    </>
  )
}