'use client'

import { Button } from '@/components/ui/button'
import { Input } from '@/components/ui/input'
import { Checkbox } from '@/components/ui/checkbox'
import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from '@/components/ui/card'
import { Label } from '@/components/ui/label'
import { Combobox } from '@/components/ui/combobox'
import { updateSystemConfig, testEmail } from '@/app/actions/admin-settings'
import { getOllamaModels } from '@/app/actions/ollama'
import { getCustomModels, getCustomEmbeddingModels } from '@/app/actions/custom-provider'
import { toast } from 'sonner'
import { useState, useEffect, useCallback } from 'react'
import Link from 'next/link'
import { TestTube, ExternalLink, RefreshCw } from 'lucide-react'
import { useLanguage } from '@/lib/i18n'

type AIProvider = 'ollama' | 'openai' | 'custom'

interface AvailableModels {
  tags: string[]
  embeddings: string[]
}

const MODELS_2026 = {
  openai: {
    tags: ['gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'],
    embeddings: ['text-embedding-3-small', 'text-embedding-3-large', 'text-embedding-ada-002']
  },
}

export function AdminSettingsForm({ config }: { config: Record<string, string> }) {
  const { t } = useLanguage()
  const [isSaving, setIsSaving] = useState(false)
  const [isTesting, setIsTesting] = useState(false)

  // Local state for Checkbox
  const [allowRegister, setAllowRegister] = useState(config.ALLOW_REGISTRATION !== 'false')
  const [smtpSecure, setSmtpSecure] = useState(config.SMTP_SECURE === 'true')
  const [smtpIgnoreCert, setSmtpIgnoreCert] = useState(config.SMTP_IGNORE_CERT === 'true')

  // Agent tools state
  const [webSearchProvider, setWebSearchProvider] = useState(config.WEB_SEARCH_PROVIDER || 'searxng')

  // Email provider state
  const [emailProvider, setEmailProvider] = useState<'resend' | 'smtp'>(config.EMAIL_PROVIDER as 'resend' | 'smtp' || (config.RESEND_API_KEY ? 'resend' : 'smtp'))
  const [emailTestResult, setEmailTestResult] = useState<{ provider: 'resend' | 'smtp'; success: boolean; message?: string } | null>(null)

  // AI Provider state - separated for tags, embeddings, and chat
  const [tagsProvider, setTagsProvider] = useState<AIProvider>((config.AI_PROVIDER_TAGS as AIProvider) || 'ollama')
  const [embeddingsProvider, setEmbeddingsProvider] = useState<AIProvider>((config.AI_PROVIDER_EMBEDDING as AIProvider) || 'ollama')
  const [chatProvider, setChatProvider] = useState<AIProvider>((config.AI_PROVIDER_CHAT as AIProvider) || 'ollama')

  // Selected Models State (Controlled Inputs)
  const [selectedTagsModel, setSelectedTagsModel] = useState<string>(config.AI_MODEL_TAGS || '')
  const [selectedEmbeddingModel, setSelectedEmbeddingModel] = useState<string>(config.AI_MODEL_EMBEDDING || '')
  const [selectedChatModel, setSelectedChatModel] = useState<string>(config.AI_MODEL_CHAT || '')


  // Dynamic Models State
  const [ollamaTagsModels, setOllamaTagsModels] = useState<string[]>([])
  const [ollamaEmbeddingsModels, setOllamaEmbeddingsModels] = useState<string[]>([])
  const [ollamaChatModels, setOllamaChatModels] = useState<string[]>([])
  const [isLoadingTagsModels, setIsLoadingTagsModels] = useState(false)
  const [isLoadingEmbeddingsModels, setIsLoadingEmbeddingsModels] = useState(false)
  const [isLoadingChatModels, setIsLoadingChatModels] = useState(false)

  // Custom provider dynamic models
  const [customTagsModels, setCustomTagsModels] = useState<string[]>([])
  const [customEmbeddingsModels, setCustomEmbeddingsModels] = useState<string[]>([])
  const [customChatModels, setCustomChatModels] = useState<string[]>([])
  const [isLoadingCustomTagsModels, setIsLoadingCustomTagsModels] = useState(false)
  const [isLoadingCustomEmbeddingsModels, setIsLoadingCustomEmbeddingsModels] = useState(false)
  const [isLoadingCustomChatModels, setIsLoadingCustomChatModels] = useState(false)

  // Fetch Ollama models
  const fetchOllamaModels = useCallback(async (type: 'tags' | 'embeddings' | 'chat', url: string) => {
    if (!url) return

    if (type === 'tags') setIsLoadingTagsModels(true)
    else if (type === 'embeddings') setIsLoadingEmbeddingsModels(true)
    else setIsLoadingChatModels(true)

    try {
      const result = await getOllamaModels(url)

      if (result.success) {
        if (type === 'tags') setOllamaTagsModels(result.models)
        else if (type === 'embeddings') setOllamaEmbeddingsModels(result.models)
        else setOllamaChatModels(result.models)
      } else {
        toast.error(`Failed to fetch Ollama models: ${result.error}`)
      }
    } catch (error) {
      console.error(error)
      toast.error('Failed to fetch Ollama models')
    } finally {
      if (type === 'tags') setIsLoadingTagsModels(false)
      else if (type === 'embeddings') setIsLoadingEmbeddingsModels(false)
      else setIsLoadingChatModels(false)
    }
  }, [])

  // Fetch Custom provider models — tags use /v1/models, embeddings use /v1/embeddings/models
  const fetchCustomModels = useCallback(async (type: 'tags' | 'embeddings' | 'chat', url: string, apiKey?: string) => {
    if (!url) return

    if (type === 'tags') setIsLoadingCustomTagsModels(true)
    else if (type === 'embeddings') setIsLoadingCustomEmbeddingsModels(true)
    else setIsLoadingCustomChatModels(true)

    try {
      const result = type === 'embeddings'
        ? await getCustomEmbeddingModels(url, apiKey)
        : await getCustomModels(url, apiKey)

      if (result.success && result.models.length > 0) {
        if (type === 'tags') setCustomTagsModels(result.models)
        else if (type === 'embeddings') setCustomEmbeddingsModels(result.models)
        else setCustomChatModels(result.models)
      } else {
        toast.error(`Impossible de récupérer les modèles : ${result.error}`)
      }
    } catch (error) {
      console.error(error)
      toast.error('Erreur lors de la récupération des modèles')
    } finally {
      if (type === 'tags') setIsLoadingCustomTagsModels(false)
      else if (type === 'embeddings') setIsLoadingCustomEmbeddingsModels(false)
      else setIsLoadingCustomChatModels(false)
    }
  }, [])

  // Initial fetch for Ollama models if provider is selected
  useEffect(() => {
    if (tagsProvider === 'ollama') {
      const url = config.OLLAMA_BASE_URL_TAGS || config.OLLAMA_BASE_URL || 'http://localhost:11434'
      fetchOllamaModels('tags', url)
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [tagsProvider])

  useEffect(() => {
    if (embeddingsProvider === 'ollama') {
      const url = config.OLLAMA_BASE_URL_EMBEDDING || config.OLLAMA_BASE_URL || 'http://localhost:11434'
      fetchOllamaModels('embeddings', url)
    } else if (embeddingsProvider === 'custom') {
      const url = config.CUSTOM_OPENAI_BASE_URL || ''
      const key = config.CUSTOM_OPENAI_API_KEY || ''
      if (url) fetchCustomModels('embeddings', url, key)
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [embeddingsProvider])

  useEffect(() => {
    if (tagsProvider === 'custom') {
      const url = config.CUSTOM_OPENAI_BASE_URL || ''
      const key = config.CUSTOM_OPENAI_API_KEY || ''
      if (url) fetchCustomModels('tags', url, key)
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [tagsProvider])

  useEffect(() => {
    if (chatProvider === 'ollama') {
      const url = config.OLLAMA_BASE_URL_CHAT || config.OLLAMA_BASE_URL || 'http://localhost:11434'
      fetchOllamaModels('chat', url)
    } else if (chatProvider === 'custom') {
      const url = config.CUSTOM_OPENAI_BASE_URL || ''
      const key = config.CUSTOM_OPENAI_API_KEY || ''
      if (url) fetchCustomModels('chat', url, key)
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [chatProvider])

  const handleSaveSecurity = async (formData: FormData) => {
    setIsSaving(true)
    const data = {
      ALLOW_REGISTRATION: allowRegister ? 'true' : 'false',
    }

    const result = await updateSystemConfig(data)
    setIsSaving(false)

    if (result.error) {
      toast.error(t('admin.security.updateFailed'))
    } else {
      toast.success(t('admin.security.updateSuccess'))
    }
  }

  const handleSaveAI = async (formData: FormData) => {
    setIsSaving(true)
    const data: Record<string, string> = {}

    try {
      const tagsProv = formData.get('AI_PROVIDER_TAGS') as AIProvider
      if (!tagsProv) throw new Error(t('admin.ai.providerTagsRequired'))
      data.AI_PROVIDER_TAGS = tagsProv

      const tagsModel = formData.get(`AI_MODEL_TAGS_${tagsProv.toUpperCase()}`) as string
      if (tagsModel) data.AI_MODEL_TAGS = tagsModel

      if (tagsProv === 'ollama') {
        const ollamaUrl = formData.get('OLLAMA_BASE_URL_TAGS') as string
        if (ollamaUrl) data.OLLAMA_BASE_URL_TAGS = ollamaUrl
      } else if (tagsProv === 'openai') {
        const openaiKey = formData.get('OPENAI_API_KEY') as string
        if (openaiKey) data.OPENAI_API_KEY = openaiKey
      } else if (tagsProv === 'custom') {
        const customKey = formData.get('CUSTOM_OPENAI_API_KEY_TAGS') as string
        const customUrl = formData.get('CUSTOM_OPENAI_BASE_URL_TAGS') as string
        if (customKey) data.CUSTOM_OPENAI_API_KEY = customKey
        if (customUrl) data.CUSTOM_OPENAI_BASE_URL = customUrl
      }

      const embedProv = formData.get('AI_PROVIDER_EMBEDDING') as AIProvider
      if (!embedProv) throw new Error(t('admin.ai.providerEmbeddingRequired'))
      data.AI_PROVIDER_EMBEDDING = embedProv

      const embedModel = formData.get(`AI_MODEL_EMBEDDING_${embedProv.toUpperCase()}`) as string
      if (embedModel) data.AI_MODEL_EMBEDDING = embedModel

      if (embedProv === 'ollama') {
        const ollamaUrl = formData.get('OLLAMA_BASE_URL_EMBEDDING') as string
        if (ollamaUrl) data.OLLAMA_BASE_URL_EMBEDDING = ollamaUrl
      } else if (embedProv === 'openai') {
        const openaiKey = formData.get('OPENAI_API_KEY') as string
        if (openaiKey) data.OPENAI_API_KEY = openaiKey
      } else if (embedProv === 'custom') {
        const customKey = formData.get('CUSTOM_OPENAI_API_KEY_EMBEDDING') as string
        const customUrl = formData.get('CUSTOM_OPENAI_BASE_URL_EMBEDDING') as string
        if (customKey) data.CUSTOM_OPENAI_API_KEY = customKey
        if (customUrl) data.CUSTOM_OPENAI_BASE_URL = customUrl
      }

      // Chat provider config
      const chatProv = formData.get('AI_PROVIDER_CHAT') as AIProvider
      if (chatProv) {
        data.AI_PROVIDER_CHAT = chatProv

        const chatModel = formData.get(`AI_MODEL_CHAT_${chatProv.toUpperCase()}`) as string
        if (chatModel) data.AI_MODEL_CHAT = chatModel

        if (chatProv === 'ollama') {
          const ollamaUrl = formData.get('OLLAMA_BASE_URL_CHAT') as string
          if (ollamaUrl) data.OLLAMA_BASE_URL_CHAT = ollamaUrl
        } else if (chatProv === 'openai') {
          const openaiKey = formData.get('OPENAI_API_KEY') as string
          if (openaiKey) data.OPENAI_API_KEY = openaiKey
        } else if (chatProv === 'custom') {
          const customKey = formData.get('CUSTOM_OPENAI_API_KEY_CHAT') as string
          const customUrl = formData.get('CUSTOM_OPENAI_BASE_URL_CHAT') as string
          if (customKey) data.CUSTOM_OPENAI_API_KEY = customKey
          if (customUrl) data.CUSTOM_OPENAI_BASE_URL = customUrl
        }
      }

      const result = await updateSystemConfig(data)
      setIsSaving(false)

      if (result.error) {
        toast.error(t('admin.ai.updateFailed') + ': ' + result.error)
      } else {
        toast.success(t('admin.ai.updateSuccess'))
      }
    } catch (error: any) {
      setIsSaving(false)
      toast.error(t('general.error') + ': ' + error.message)
    }
  }

  const handleSaveEmail = async (formData: FormData) => {
    setIsSaving(true)
    const data: Record<string, string> = { EMAIL_PROVIDER: emailProvider }

    if (emailProvider === 'resend') {
      const key = formData.get('RESEND_API_KEY') as string
      if (key) data.RESEND_API_KEY = key
    } else {
      data.SMTP_HOST = formData.get('SMTP_HOST') as string
      data.SMTP_PORT = formData.get('SMTP_PORT') as string
      data.SMTP_USER = formData.get('SMTP_USER') as string
      data.SMTP_PASS = formData.get('SMTP_PASS') as string
      data.SMTP_FROM = formData.get('SMTP_FROM') as string
      data.SMTP_IGNORE_CERT = smtpIgnoreCert ? 'true' : 'false'
      data.SMTP_SECURE = smtpSecure ? 'true' : 'false'
    }

    const result = await updateSystemConfig(data)
    setIsSaving(false)

    if (result.error) {
      toast.error(t('admin.smtp.updateFailed'))
    } else {
      toast.success(t('admin.smtp.updateSuccess'))
    }
  }

  const handleTestEmail = async () => {
    setIsTesting(true)
    try {
      const result: any = await testEmail(emailProvider)
      if (result.success) {
        toast.success(t('admin.smtp.testSuccess'))
        setEmailTestResult({ provider: emailProvider, success: true })
      } else {
        toast.error(t('admin.smtp.testFailed', { error: result.error }))
        setEmailTestResult({ provider: emailProvider, success: false, message: result.error })
      }
    } catch (e: any) {
      toast.error(t('general.error') + ': ' + e.message)
      setEmailTestResult({ provider: emailProvider, success: false, message: e.message })
    } finally {
      setIsTesting(false)
    }
  }

  const handleSaveTools = async (formData: FormData) => {
    setIsSaving(true)
    const data = {
      WEB_SEARCH_PROVIDER: formData.get('WEB_SEARCH_PROVIDER') as string || 'searxng',
      SEARXNG_URL: formData.get('SEARXNG_URL') as string || '',
      BRAVE_SEARCH_API_KEY: formData.get('BRAVE_SEARCH_API_KEY') as string || '',
      JINA_API_KEY: formData.get('JINA_API_KEY') as string || '',
    }

    const result = await updateSystemConfig(data)
    setIsSaving(false)

    if (result.error) {
      toast.error(t('admin.tools.updateFailed'))
    } else {
      toast.success(t('admin.tools.updateSuccess'))
    }
  }

  return (
    <div className="space-y-6">
      <Card>
        <CardHeader>
          <CardTitle>{t('admin.security.title')}</CardTitle>
          <CardDescription>{t('admin.security.description')}</CardDescription>
        </CardHeader>
        <form onSubmit={(e) => { e.preventDefault(); handleSaveSecurity(new FormData(e.currentTarget)) }}>
          <CardContent className="space-y-4">
            <div className="flex items-center space-x-2">
              <Checkbox
                id="ALLOW_REGISTRATION"
                checked={allowRegister}
                onCheckedChange={(c) => setAllowRegister(!!c)}
              />
              <label
                htmlFor="ALLOW_REGISTRATION"
                className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70"
              >
                {t('admin.security.allowPublicRegistration')}
              </label>
            </div>
            <p className="text-xs text-muted-foreground">
              {t('admin.security.allowPublicRegistrationDescription')}
            </p>
          </CardContent>
          <CardFooter>
            <Button type="submit" disabled={isSaving}>{t('admin.security.title')}</Button>
          </CardFooter>
        </form>
      </Card>

      <Card>
        <CardHeader>
          <CardTitle>{t('admin.ai.title')}</CardTitle>
          <CardDescription>{t('admin.ai.description')}</CardDescription>
        </CardHeader>
        <form onSubmit={(e) => { e.preventDefault(); handleSaveAI(new FormData(e.currentTarget)) }}>
          <CardContent className="space-y-6">            <div className="space-y-4 p-4 border rounded-lg bg-primary/5 dark:bg-primary/10">
              <h3 className="text-base font-semibold flex items-center gap-2">
                <span className="text-primary">🏷️</span> {t('admin.ai.tagsGenerationProvider')}
              </h3>
              <p className="text-xs text-muted-foreground">{t('admin.ai.tagsGenerationDescription')}</p>

              <div className="space-y-2">
                <Label htmlFor="AI_PROVIDER_TAGS">{t('admin.ai.provider')}</Label>
                <select
                  id="AI_PROVIDER_TAGS"
                  name="AI_PROVIDER_TAGS"
                  value={tagsProvider}
                  onChange={(e) => {
                    const newProvider = e.target.value as AIProvider
                    setTagsProvider(newProvider)
                    const defaultModels: Record<string, string> = {
                      ollama: '',
                      openai: MODELS_2026.openai.tags[0],
                      custom: '',
                    }
                    setSelectedTagsModel(defaultModels[newProvider] || '')
                  }}
                  className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                >
                  <option value="ollama">{t('admin.ai.providerOllamaOption')}</option>
                  <option value="openai">{t('admin.ai.providerOpenAIOption')}</option>
                  <option value="custom">{t('admin.ai.providerCustomOption')}</option>
                </select>
              </div>

              {tagsProvider === 'ollama' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="OLLAMA_BASE_URL_TAGS">{t('admin.ai.baseUrl')}</Label>
                    <div className="flex gap-2">
                      <Input
                        id="OLLAMA_BASE_URL_TAGS"
                        name="OLLAMA_BASE_URL_TAGS"
                        defaultValue={config.OLLAMA_BASE_URL_TAGS || config.OLLAMA_BASE_URL || 'http://localhost:11434'}
                        placeholder="http://localhost:11434"
                      />
                      <Button
                        type="button"
                        size="icon"
                        variant="outline"
                        onClick={() => {
                          const input = document.getElementById('OLLAMA_BASE_URL_TAGS') as HTMLInputElement
                          fetchOllamaModels('tags', input.value)
                        }}
                        disabled={isLoadingTagsModels}
                        title="Refresh Models"
                      >
                        <RefreshCw className={`h-4 w-4 ${isLoadingTagsModels ? 'animate-spin' : ''}`} />
                      </Button>
                    </div>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="AI_MODEL_TAGS_OLLAMA">{t('admin.ai.model')}</Label>
                    <select
                      id="AI_MODEL_TAGS_OLLAMA"
                      name="AI_MODEL_TAGS_OLLAMA"
                      value={selectedTagsModel}
                      onChange={(e) => setSelectedTagsModel(e.target.value)}
                      className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                    >
                      {ollamaTagsModels.length > 0 ? (
                        ollamaTagsModels.map((model) => (
                          <option key={model} value={model}>{model}</option>
                        ))
                      ) : (
                        <option value={selectedTagsModel || 'granite4:latest'}>{selectedTagsModel || 'granite4:latest'} {t('admin.ai.saved')}</option>
                      )}
                    </select>
                    <p className="text-xs text-muted-foreground">
                      {isLoadingTagsModels ? 'Fetching models...' : t('admin.ai.selectOllamaModel')}
                    </p>
                  </div>
                </div>
              )}

              {tagsProvider === 'openai' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="OPENAI_API_KEY">{t('admin.ai.apiKey')}</Label>
                    <Input id="OPENAI_API_KEY" name="OPENAI_API_KEY" type="password" defaultValue={config.OPENAI_API_KEY || ''} placeholder="sk-..." />
                    <p className="text-xs text-muted-foreground">{t('admin.ai.openAIKeyDescription')}</p>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="AI_MODEL_TAGS_OPENAI">{t('admin.ai.model')}</Label>
                    <select
                      id="AI_MODEL_TAGS_OPENAI"
                      name="AI_MODEL_TAGS_OPENAI"
                      value={selectedTagsModel}
                      onChange={(e) => setSelectedTagsModel(e.target.value)}
                      className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                    >
                      {MODELS_2026.openai.tags.map((model) => (
                        <option key={model} value={model}>{model}</option>
                      ))}
                    </select>
                    <p className="text-xs text-muted-foreground"><strong className="text-green-600">gpt-4o-mini</strong> = {t('admin.ai.bestValue')} • <strong className="text-primary">gpt-4o</strong> = {t('admin.ai.bestQuality')}</p>
                  </div>
                </div>
              )}

              {tagsProvider === 'custom' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="CUSTOM_OPENAI_BASE_URL_TAGS">{t('admin.ai.baseUrl')}</Label>
                    <div className="flex gap-2">
                      <Input
                        id="CUSTOM_OPENAI_BASE_URL_TAGS"
                        name="CUSTOM_OPENAI_BASE_URL_TAGS"
                        defaultValue={config.CUSTOM_OPENAI_BASE_URL || ''}
                        placeholder="https://api.example.com/v1"
                      />
                      <Button
                        type="button"
                        size="icon"
                        variant="outline"
                        onClick={() => {
                          const urlInput = document.getElementById('CUSTOM_OPENAI_BASE_URL_TAGS') as HTMLInputElement
                          const keyInput = document.getElementById('CUSTOM_OPENAI_API_KEY_TAGS') as HTMLInputElement
                          fetchCustomModels('tags', urlInput.value, keyInput.value)
                        }}
                        disabled={isLoadingCustomTagsModels}
                        title="Récupérer les modèles"
                      >
                        <RefreshCw className={`h-4 w-4 ${isLoadingCustomTagsModels ? 'animate-spin' : ''}`} />
                      </Button>
                    </div>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="CUSTOM_OPENAI_API_KEY_TAGS">{t('admin.ai.apiKey')}</Label>
                    <Input id="CUSTOM_OPENAI_API_KEY_TAGS" name="CUSTOM_OPENAI_API_KEY_TAGS" type="password" defaultValue={config.CUSTOM_OPENAI_API_KEY || ''} placeholder="sk-..." />
                  </div>
                  <div className="space-y-2">
                    <Label>{t('admin.ai.model')}</Label>
                    <input type="hidden" name="AI_MODEL_TAGS_CUSTOM" value={selectedTagsModel} />
                    <Combobox
                      options={customTagsModels.length > 0
                        ? customTagsModels.map((m) => ({ value: m, label: m }))
                        : selectedTagsModel
                          ? [{ value: selectedTagsModel, label: selectedTagsModel }]
                          : []
                      }
                      value={selectedTagsModel}
                      onChange={setSelectedTagsModel}
                      placeholder={selectedTagsModel || 'Cliquez sur ↺ pour charger les modèles'}
                      searchPlaceholder="Rechercher un modèle..."
                      emptyMessage="Aucun modèle. Cliquez sur ↺"
                    />
                    <p className="text-xs text-muted-foreground">
                      {isLoadingCustomTagsModels
                        ? 'Récupération des modèles...'
                        : customTagsModels.length > 0
                          ? `${customTagsModels.length} modèle(s) disponible(s)`
                          : 'Renseignez l\'URL et cliquez sur ↺ pour charger les modèles'}
                    </p>
                  </div>
                </div>
              )}
            </div>

            <div className="space-y-4 p-4 border rounded-lg bg-green-50/50 dark:bg-green-950/20">
              <h3 className="text-base font-semibold flex items-center gap-2">
                <span className="text-green-600">🔍</span> {t('admin.ai.embeddingsProvider')}
              </h3>
              <p className="text-xs text-muted-foreground">{t('admin.ai.embeddingsDescription')}</p>

              <div className="space-y-2">
                <Label htmlFor="AI_PROVIDER_EMBEDDING">
                  {t('admin.ai.provider')}
                  <span className="ml-2 text-xs text-muted-foreground">
                    (Current: {embeddingsProvider})
                  </span>
                </Label>
                <select
                  id="AI_PROVIDER_EMBEDDING"
                  name="AI_PROVIDER_EMBEDDING"
                  value={embeddingsProvider}
                  onChange={(e) => {
                    const newProvider = e.target.value as AIProvider
                    setEmbeddingsProvider(newProvider)
                    const defaultModels: Record<string, string> = {
                      ollama: '',
                      openai: MODELS_2026.openai.embeddings[0],
                      custom: '',
                    }
                    setSelectedEmbeddingModel(defaultModels[newProvider] || '')
                  }}
                  className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                >
                  <option value="ollama">{t('admin.ai.providerOllamaOption')}</option>
                  <option value="openai">{t('admin.ai.providerOpenAIOption')}</option>
                  <option value="custom">{t('admin.ai.providerCustomOption')}</option>
                </select>
                <p className="text-xs text-muted-foreground">
                  Config value: {config.AI_PROVIDER_EMBEDDING || 'Not set (defaults to ollama)'}
                </p>
              </div>

              {embeddingsProvider === 'ollama' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="OLLAMA_BASE_URL_EMBEDDING">{t('admin.ai.baseUrl')}</Label>
                    <div className="flex gap-2">
                      <Input
                        id="OLLAMA_BASE_URL_EMBEDDING"
                        name="OLLAMA_BASE_URL_EMBEDDING"
                        defaultValue={config.OLLAMA_BASE_URL_EMBEDDING || config.OLLAMA_BASE_URL || 'http://localhost:11434'}
                        placeholder="http://localhost:11434"
                      />
                      <Button
                        type="button"
                        size="icon"
                        variant="outline"
                        onClick={() => {
                          const input = document.getElementById('OLLAMA_BASE_URL_EMBEDDING') as HTMLInputElement
                          fetchOllamaModels('embeddings', input.value)
                        }}
                        disabled={isLoadingEmbeddingsModels}
                        title="Refresh Models"
                      >
                        <RefreshCw className={`h-4 w-4 ${isLoadingEmbeddingsModels ? 'animate-spin' : ''}`} />
                      </Button>
                    </div>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="AI_MODEL_EMBEDDING_OLLAMA">{t('admin.ai.model')}</Label>
                    <select
                      id="AI_MODEL_EMBEDDING_OLLAMA"
                      name="AI_MODEL_EMBEDDING_OLLAMA"
                      value={selectedEmbeddingModel}
                      onChange={(e) => setSelectedEmbeddingModel(e.target.value)}
                      className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                    >
                      {ollamaEmbeddingsModels.length > 0 ? (
                        ollamaEmbeddingsModels.map((model) => (
                          <option key={model} value={model}>{model}</option>
                        ))
                      ) : (
                        <option value={selectedEmbeddingModel || 'embeddinggemma:latest'}>{selectedEmbeddingModel || 'embeddinggemma:latest'} {t('admin.ai.saved')}</option>
                      )}
                    </select>
                    <p className="text-xs text-muted-foreground">
                      {isLoadingEmbeddingsModels ? 'Fetching models...' : t('admin.ai.selectEmbeddingModel')}
                    </p>
                  </div>
                </div>
              )}

              {embeddingsProvider === 'openai' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="OPENAI_API_KEY">{t('admin.ai.apiKey')}</Label>
                    <Input id="OPENAI_API_KEY" name="OPENAI_API_KEY" type="password" defaultValue={config.OPENAI_API_KEY || ''} placeholder="sk-..." />
                    <p className="text-xs text-muted-foreground">{t('admin.ai.openAIKeyDescription')}</p>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="AI_MODEL_EMBEDDING_OPENAI">{t('admin.ai.model')}</Label>
                    <select
                      id="AI_MODEL_EMBEDDING_OPENAI"
                      name="AI_MODEL_EMBEDDING_OPENAI"
                      value={selectedEmbeddingModel}
                      onChange={(e) => setSelectedEmbeddingModel(e.target.value)}
                      className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                    >
                      {MODELS_2026.openai.embeddings.map((model) => (
                        <option key={model} value={model}>{model}</option>
                      ))}
                    </select>
                    <p className="text-xs text-muted-foreground"><strong className="text-green-600">text-embedding-3-small</strong> = {t('admin.ai.bestValue')} • <strong className="text-primary">text-embedding-3-large</strong> = {t('admin.ai.bestQuality')}</p>
                  </div>
                </div>
              )}

              {embeddingsProvider === 'custom' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="CUSTOM_OPENAI_BASE_URL_EMBEDDING">{t('admin.ai.baseUrl')}</Label>
                    <div className="flex gap-2">
                      <Input
                        id="CUSTOM_OPENAI_BASE_URL_EMBEDDING"
                        name="CUSTOM_OPENAI_BASE_URL_EMBEDDING"
                        defaultValue={config.CUSTOM_OPENAI_BASE_URL || ''}
                        placeholder="https://api.example.com/v1"
                      />
                      <Button
                        type="button"
                        size="icon"
                        variant="outline"
                        onClick={() => {
                          const urlInput = document.getElementById('CUSTOM_OPENAI_BASE_URL_EMBEDDING') as HTMLInputElement
                          const keyInput = document.getElementById('CUSTOM_OPENAI_API_KEY_EMBEDDING') as HTMLInputElement
                          fetchCustomModels('embeddings', urlInput.value, keyInput.value)
                        }}
                        disabled={isLoadingCustomEmbeddingsModels}
                        title="Récupérer les modèles"
                      >
                        <RefreshCw className={`h-4 w-4 ${isLoadingCustomEmbeddingsModels ? 'animate-spin' : ''}`} />
                      </Button>
                    </div>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="CUSTOM_OPENAI_API_KEY_EMBEDDING">{t('admin.ai.apiKey')}</Label>
                    <Input id="CUSTOM_OPENAI_API_KEY_EMBEDDING" name="CUSTOM_OPENAI_API_KEY_EMBEDDING" type="password" defaultValue={config.CUSTOM_OPENAI_API_KEY || ''} placeholder="sk-..." />
                  </div>
                  <div className="space-y-2">
                    <Label>{t('admin.ai.model')}</Label>
                    <input type="hidden" name="AI_MODEL_EMBEDDING_CUSTOM" value={selectedEmbeddingModel} />
                    <Combobox
                      options={customEmbeddingsModels.length > 0
                        ? customEmbeddingsModels.map((m) => ({ value: m, label: m }))
                        : selectedEmbeddingModel
                          ? [{ value: selectedEmbeddingModel, label: selectedEmbeddingModel }]
                          : []
                      }
                      value={selectedEmbeddingModel}
                      onChange={setSelectedEmbeddingModel}
                      placeholder={selectedEmbeddingModel || 'Cliquez sur ↺ pour charger les modèles'}
                      searchPlaceholder="Rechercher un modèle..."
                      emptyMessage="Aucun modèle. Cliquez sur ↺"
                    />
                    <p className="text-xs text-muted-foreground">
                      {isLoadingCustomEmbeddingsModels
                        ? 'Récupération des modèles...'
                        : customEmbeddingsModels.length > 0
                          ? `${customEmbeddingsModels.length} modèle(s) disponible(s)`
                          : 'Renseignez l\'URL et cliquez sur ↺ pour charger les modèles'}
                    </p>
                  </div>
                </div>
              )}
            </div>

            {/* Chat Provider Section */}
            <div className="space-y-4 p-4 border rounded-lg bg-blue-50/50 dark:bg-blue-950/20">
              <h3 className="text-base font-semibold flex items-center gap-2">
                <span className="text-blue-600">💬</span> {t('admin.ai.chatProvider')}
              </h3>
              <p className="text-xs text-muted-foreground">{t('admin.ai.chatDescription')}</p>

              <div className="space-y-2">
                <Label htmlFor="AI_PROVIDER_CHAT">{t('admin.ai.provider')}</Label>
                <select
                  id="AI_PROVIDER_CHAT"
                  name="AI_PROVIDER_CHAT"
                  value={chatProvider}
                  onChange={(e) => {
                    const newProvider = e.target.value as AIProvider
                    setChatProvider(newProvider)
                    const defaultModels: Record<string, string> = {
                      ollama: '',
                      openai: MODELS_2026.openai.tags[0],
                      custom: '',
                    }
                    setSelectedChatModel(defaultModels[newProvider] || '')
                  }}
                  className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                >
                  <option value="ollama">{t('admin.ai.providerOllamaOption')}</option>
                  <option value="openai">{t('admin.ai.providerOpenAIOption')}</option>
                  <option value="custom">{t('admin.ai.providerCustomOption')}</option>
                </select>
              </div>

              {chatProvider === 'ollama' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="OLLAMA_BASE_URL_CHAT">{t('admin.ai.baseUrl')}</Label>
                    <div className="flex gap-2">
                      <Input
                        id="OLLAMA_BASE_URL_CHAT"
                        name="OLLAMA_BASE_URL_CHAT"
                        defaultValue={config.OLLAMA_BASE_URL_CHAT || config.OLLAMA_BASE_URL || 'http://localhost:11434'}
                        placeholder="http://localhost:11434"
                      />
                      <Button
                        type="button"
                        size="icon"
                        variant="outline"
                        onClick={() => {
                          const input = document.getElementById('OLLAMA_BASE_URL_CHAT') as HTMLInputElement
                          fetchOllamaModels('chat', input.value)
                        }}
                        disabled={isLoadingChatModels}
                        title="Refresh Models"
                      >
                        <RefreshCw className={`h-4 w-4 ${isLoadingChatModels ? 'animate-spin' : ''}`} />
                      </Button>
                    </div>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="AI_MODEL_CHAT_OLLAMA">{t('admin.ai.model')}</Label>
                    <select
                      id="AI_MODEL_CHAT_OLLAMA"
                      name="AI_MODEL_CHAT_OLLAMA"
                      value={selectedChatModel}
                      onChange={(e) => setSelectedChatModel(e.target.value)}
                      className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                    >
                      {ollamaChatModels.length > 0 ? (
                        ollamaChatModels.map((model) => (
                          <option key={model} value={model}>{model}</option>
                        ))
                      ) : (
                        <option value={selectedChatModel || 'granite4:latest'}>{selectedChatModel || 'granite4:latest'} {t('admin.ai.saved')}</option>
                      )}
                    </select>
                    <p className="text-xs text-muted-foreground">
                      {isLoadingChatModels ? 'Fetching models...' : t('admin.ai.selectOllamaModel')}
                    </p>
                  </div>
                </div>
              )}

              {chatProvider === 'openai' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="OPENAI_API_KEY_CHAT">{t('admin.ai.apiKey')}</Label>
                    <Input id="OPENAI_API_KEY_CHAT" name="OPENAI_API_KEY" type="password" defaultValue={config.OPENAI_API_KEY || ''} placeholder="sk-..." />
                    <p className="text-xs text-muted-foreground">{t('admin.ai.openAIKeyDescription')}</p>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="AI_MODEL_CHAT_OPENAI">{t('admin.ai.model')}</Label>
                    <select
                      id="AI_MODEL_CHAT_OPENAI"
                      name="AI_MODEL_CHAT_OPENAI"
                      value={selectedChatModel}
                      onChange={(e) => setSelectedChatModel(e.target.value)}
                      className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
                    >
                      {MODELS_2026.openai.tags.map((model) => (
                        <option key={model} value={model}>{model}</option>
                      ))}
                    </select>
                    <p className="text-xs text-muted-foreground"><strong className="text-green-600">gpt-4o-mini</strong> = {t('admin.ai.bestValue')} • <strong className="text-primary">gpt-4o</strong> = {t('admin.ai.bestQuality')}</p>
                  </div>
                </div>
              )}

              {chatProvider === 'custom' && (
                <div className="space-y-3">
                  <div className="space-y-2">
                    <Label htmlFor="CUSTOM_OPENAI_BASE_URL_CHAT">{t('admin.ai.baseUrl')}</Label>
                    <div className="flex gap-2">
                      <Input
                        id="CUSTOM_OPENAI_BASE_URL_CHAT"
                        name="CUSTOM_OPENAI_BASE_URL_CHAT"
                        defaultValue={config.CUSTOM_OPENAI_BASE_URL || ''}
                        placeholder="https://api.example.com/v1"
                      />
                      <Button
                        type="button"
                        size="icon"
                        variant="outline"
                        onClick={() => {
                          const urlInput = document.getElementById('CUSTOM_OPENAI_BASE_URL_CHAT') as HTMLInputElement
                          const keyInput = document.getElementById('CUSTOM_OPENAI_API_KEY_CHAT') as HTMLInputElement
                          fetchCustomModels('chat', urlInput.value, keyInput.value)
                        }}
                        disabled={isLoadingCustomChatModels}
                        title="Récupérer les modèles"
                      >
                        <RefreshCw className={`h-4 w-4 ${isLoadingCustomChatModels ? 'animate-spin' : ''}`} />
                      </Button>
                    </div>
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="CUSTOM_OPENAI_API_KEY_CHAT">{t('admin.ai.apiKey')}</Label>
                    <Input id="CUSTOM_OPENAI_API_KEY_CHAT" name="CUSTOM_OPENAI_API_KEY_CHAT" type="password" defaultValue={config.CUSTOM_OPENAI_API_KEY || ''} placeholder="sk-..." />
                  </div>
                  <div className="space-y-2">
                    <Label>{t('admin.ai.model')}</Label>
                    <input type="hidden" name="AI_MODEL_CHAT_CUSTOM" value={selectedChatModel} />
                    <Combobox
                      options={customChatModels.length > 0
                        ? customChatModels.map((m) => ({ value: m, label: m }))
                        : selectedChatModel
                          ? [{ value: selectedChatModel, label: selectedChatModel }]
                          : []
                      }
                      value={selectedChatModel}
                      onChange={setSelectedChatModel}
                      placeholder={selectedChatModel || 'Cliquez sur ↺ pour charger les modèles'}
                      searchPlaceholder="Rechercher un modèle..."
                      emptyMessage="Aucun modèle. Cliquez sur ↺"
                    />
                    <p className="text-xs text-muted-foreground">
                      {isLoadingCustomChatModels
                        ? 'Récupération des modèles...'
                        : customChatModels.length > 0
                          ? `${customChatModels.length} modèle(s) disponible(s)`
                          : 'Renseignez l\'URL et cliquez sur ↺ pour charger les modèles'}
                    </p>
                  </div>
                </div>
              )}
            </div>
          </CardContent>
          <CardFooter className="flex justify-between pt-6">
            <Button type="submit" disabled={isSaving}>{isSaving ? t('admin.ai.saving') : t('admin.ai.saveSettings')}</Button>
            <Link href="/admin/ai-test">
              <Button type="button" variant="outline" className="gap-2">
                <TestTube className="h-4 w-4" />
                {t('admin.ai.openTestPanel')}
                <ExternalLink className="h-3 w-3" />
              </Button>
            </Link>
          </CardFooter>
        </form>
      </Card>

      <Card>
        <CardHeader>
          <CardTitle>{t('admin.email.title')}</CardTitle>
          <CardDescription>{t('admin.email.description')}</CardDescription>
        </CardHeader>
        <form onSubmit={(e) => { e.preventDefault(); handleSaveEmail(new FormData(e.currentTarget)) }}>
          <CardContent className="space-y-4">
            <div className="space-y-2">
              <label className="text-sm font-medium">{t('admin.email.provider')}</label>
              <div className="flex gap-2">
                <button
                  type="button"
                  onClick={() => setEmailProvider('resend')}
                  className={`flex-1 px-4 py-2.5 rounded-lg border text-sm font-medium transition-colors ${
                    emailProvider === 'resend'
                      ? 'border-primary bg-primary/10 text-primary'
                      : 'border-border bg-background text-muted-foreground hover:bg-muted'
                  }`}
                >
                  Resend
                </button>
                <button
                  type="button"
                  onClick={() => setEmailProvider('smtp')}
                  className={`flex-1 px-4 py-2.5 rounded-lg border text-sm font-medium transition-colors ${
                    emailProvider === 'smtp'
                      ? 'border-primary bg-primary/10 text-primary'
                      : 'border-border bg-background text-muted-foreground hover:bg-muted'
                  }`}
                >
                  SMTP
                </button>
              </div>
            </div>

            {/* Email service status */}
            <div className="rounded-lg border bg-muted/30 p-3 space-y-1.5">
              <div className="text-xs font-medium text-muted-foreground uppercase tracking-wide">{t('admin.email.status')}</div>
              <div className="flex flex-wrap items-center gap-x-4 gap-y-1 text-sm">
                <div className="flex items-center gap-1.5">
                  <span className={`inline-block w-2 h-2 rounded-full ${config.RESEND_API_KEY ? 'bg-green-500' : 'bg-slate-300'}`} />
                  <span className={config.RESEND_API_KEY ? 'text-green-700' : 'text-slate-400'}>Resend</span>
                  {config.RESEND_API_KEY && <span className="text-xs text-muted-foreground">({t('admin.email.keySet')})</span>}
                </div>
                <div className="flex items-center gap-1.5">
                  <span className={`inline-block w-2 h-2 rounded-full ${config.SMTP_HOST ? 'bg-green-500' : 'bg-slate-300'}`} />
                  <span className={config.SMTP_HOST ? 'text-green-700' : 'text-slate-400'}>SMTP</span>
                  {config.SMTP_HOST && <span className="text-xs text-muted-foreground">({config.SMTP_HOST}:{config.SMTP_PORT || '587'})</span>}
                </div>
              </div>
              <div className="text-xs font-medium text-primary">
                {t('admin.email.activeProvider')}: {emailProvider === 'resend' ? 'Resend' : 'SMTP'}
              </div>
              {emailTestResult && (
                <div className={`flex items-center gap-1.5 text-xs pt-1 border-t ${emailTestResult.success ? 'text-green-600' : 'text-red-500'}`}>
                  <span className={`inline-block w-2 h-2 rounded-full ${emailTestResult.success ? 'bg-green-500' : 'bg-red-500'}`} />
                  <span>
                    {emailTestResult.provider === 'resend' ? 'Resend' : 'SMTP'} — {emailTestResult.success ? t('admin.email.testOk') : `${t('admin.email.testFail')}: ${emailTestResult.message || ''}`}
                  </span>
                </div>
              )}
            </div>

            {emailProvider === 'resend' ? (
              <div className="space-y-3">
                <div className="space-y-2">
                  <label htmlFor="RESEND_API_KEY" className="text-sm font-medium">{t('admin.resend.apiKey')}</label>
                  <Input id="RESEND_API_KEY" name="RESEND_API_KEY" type="password" defaultValue={config.RESEND_API_KEY || ''} placeholder="re_..." />
                  <p className="text-xs text-muted-foreground">{t('admin.resend.apiKeyHint')}</p>
                </div>
                {config.RESEND_API_KEY && (
                  <div className="flex items-center gap-2 text-xs text-green-600">
                    <span className="inline-block w-2 h-2 rounded-full bg-green-500" />
                    {t('admin.resend.configured')}
                  </div>
                )}
              </div>
            ) : (
              <div className="space-y-3">
                <div className="grid grid-cols-2 gap-4">
                  <div className="space-y-2">
                    <label htmlFor="SMTP_HOST" className="text-sm font-medium">{t('admin.smtp.host')}</label>
                    <Input id="SMTP_HOST" name="SMTP_HOST" defaultValue={config.SMTP_HOST || ''} placeholder="smtp.example.com" />
                  </div>
                  <div className="space-y-2">
                    <label htmlFor="SMTP_PORT" className="text-sm font-medium">{t('admin.smtp.port')}</label>
                    <Input id="SMTP_PORT" name="SMTP_PORT" defaultValue={config.SMTP_PORT || '587'} placeholder="587" />
                  </div>
                </div>

                <div className="space-y-2">
                  <label htmlFor="SMTP_USER" className="text-sm font-medium">{t('admin.smtp.username')}</label>
                  <Input id="SMTP_USER" name="SMTP_USER" defaultValue={config.SMTP_USER || ''} />
                </div>

                <div className="space-y-2">
                  <label htmlFor="SMTP_PASS" className="text-sm font-medium">{t('admin.smtp.password')}</label>
                  <Input id="SMTP_PASS" name="SMTP_PASS" type="password" defaultValue={config.SMTP_PASS || ''} />
                </div>

                <div className="space-y-2">
                  <label htmlFor="SMTP_FROM" className="text-sm font-medium">{t('admin.smtp.fromEmail')}</label>
                  <Input id="SMTP_FROM" name="SMTP_FROM" defaultValue={config.SMTP_FROM || 'noreply@memento.app'} />
                </div>

                <div className="flex items-center space-x-2">
                  <Checkbox
                    id="SMTP_SECURE"
                    checked={smtpSecure}
                    onCheckedChange={(c) => setSmtpSecure(!!c)}
                  />
                  <label
                    htmlFor="SMTP_SECURE"
                    className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70"
                  >
                    {t('admin.smtp.forceSSL')}
                  </label>
                </div>

                <div className="flex items-center space-x-2">
                  <Checkbox
                    id="SMTP_IGNORE_CERT"
                    checked={smtpIgnoreCert}
                    onCheckedChange={(c) => setSmtpIgnoreCert(!!c)}
                  />
                  <label
                    htmlFor="SMTP_IGNORE_CERT"
                    className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70 text-yellow-600"
                  >
                    {t('admin.smtp.ignoreCertErrors')}
                  </label>
                </div>
              </div>
            )}
          </CardContent>
          <CardFooter className="flex justify-between pt-6">
            <Button type="submit" disabled={isSaving}>{t('admin.email.saveSettings')}</Button>
            <Button type="button" variant="secondary" onClick={handleTestEmail} disabled={isTesting}>
              {isTesting ? t('admin.smtp.sending') : t('admin.smtp.testEmail')}
            </Button>
          </CardFooter>
        </form>
      </Card>

      <Card>
        <CardHeader>
          <CardTitle>{t('admin.tools.title')}</CardTitle>
          <CardDescription>{t('admin.tools.description')}</CardDescription>
        </CardHeader>
        <form onSubmit={(e) => { e.preventDefault(); handleSaveTools(new FormData(e.currentTarget)) }}>
          <CardContent className="space-y-4">
            <div className="space-y-2">
              <label htmlFor="WEB_SEARCH_PROVIDER" className="text-sm font-medium">{t('admin.tools.searchProvider')}</label>
              <select
                id="WEB_SEARCH_PROVIDER"
                name="WEB_SEARCH_PROVIDER"
                value={webSearchProvider}
                onChange={(e) => setWebSearchProvider(e.target.value)}
                className="flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2"
              >
                <option value="searxng">{t('admin.tools.searxng')}</option>
                <option value="brave">{t('admin.tools.brave')}</option>
                <option value="both">{t('admin.tools.both')}</option>
              </select>
            </div>

            {(webSearchProvider === 'searxng' || webSearchProvider === 'both') && (
              <div className="space-y-2">
                <label htmlFor="SEARXNG_URL" className="text-sm font-medium">{t('admin.tools.searxngUrl')}</label>
                <Input id="SEARXNG_URL" name="SEARXNG_URL" defaultValue={config.SEARXNG_URL || 'http://localhost:8080'} placeholder="http://localhost:8080" />
              </div>
            )}

            {(webSearchProvider === 'brave' || webSearchProvider === 'both') && (
              <div className="space-y-2">
                <label htmlFor="BRAVE_SEARCH_API_KEY" className="text-sm font-medium">{t('admin.tools.braveKey')}</label>
                <Input id="BRAVE_SEARCH_API_KEY" name="BRAVE_SEARCH_API_KEY" type="password" defaultValue={config.BRAVE_SEARCH_API_KEY || ''} placeholder="BSA-..." />
              </div>
            )}

            <div className="space-y-2">
              <label htmlFor="JINA_API_KEY" className="text-sm font-medium">{t('admin.tools.jinaKey')}</label>
              <Input id="JINA_API_KEY" name="JINA_API_KEY" type="password" defaultValue={config.JINA_API_KEY || ''} placeholder={t('admin.tools.jinaKeyOptional')} />
              <p className="text-xs text-muted-foreground">{t('admin.tools.jinaKeyDescription')}</p>
            </div>
          </CardContent>
          <CardFooter>
            <Button type="submit" disabled={isSaving}>{t('admin.tools.saveSettings')}</Button>
          </CardFooter>
        </form>
      </Card>
    </div>
  )
}
