import { useEffect, useState } from 'react'
import {
  apiRequest,
  createSite,
  getSite,
  updateSite,
  setSiteStatus,
  deleteSite,
  createSiteBackup,
  listSiteBackups,
  restoreSiteBackup,
  downloadSiteBackup,
  listSiteRedirects,
  addSiteRedirect,
  deleteSiteRedirect,
  siteGitClone,
  siteGitPull,
} from '../api/client'
import { Plus, Trash2, Download, Archive, RotateCcw, Pencil, Play, Square, Redirect, GitBranch } from 'lucide-react'

interface Site {
  id: number
  name: string
  path: string
  status: number
  ps: string
  project_type: string
  domain_count: number
  addtime: string | null
}

export function SitePage() {
  const [sites, setSites] = useState<Site[]>([])
  const [loading, setLoading] = useState(true)
  const [error, setError] = useState('')
  const [showCreate, setShowCreate] = useState(false)
  const [creating, setCreating] = useState(false)
  const [creatingError, setCreatingError] = useState('')
  const [backupSiteId, setBackupSiteId] = useState<number | null>(null)
  const [backups, setBackups] = useState<{ filename: string; size: number }[]>([])
  const [backupLoading, setBackupLoading] = useState(false)
  const [editSiteId, setEditSiteId] = useState<number | null>(null)
  const [editForm, setEditForm] = useState<{ domains: string; path: string; ps: string; php_version: string; force_https: boolean } | null>(null)
  const [editLoading, setEditLoading] = useState(false)
  const [editError, setEditError] = useState('')
  const [statusLoading, setStatusLoading] = useState<number | null>(null)
  const [redirectSiteId, setRedirectSiteId] = useState<number | null>(null)
  const [redirects, setRedirects] = useState<{ id: number; source: string; target: string; code: number }[]>([])
  const [redirectSource, setRedirectSource] = useState('')
  const [redirectTarget, setRedirectTarget] = useState('')
  const [redirectCode, setRedirectCode] = useState(301)
  const [redirectAdding, setRedirectAdding] = useState(false)
  const [gitSiteId, setGitSiteId] = useState<number | null>(null)
  const [gitUrl, setGitUrl] = useState('')
  const [gitBranch, setGitBranch] = useState('main')
  const [gitAction, setGitAction] = useState<'clone' | 'pull' | null>(null)
  const [gitLoading, setGitLoading] = useState(false)

  const loadSites = () => {
    setLoading(true)
    apiRequest<Site[]>('/site/list')
      .then(setSites)
      .catch((err) => setError(err.message))
      .finally(() => setLoading(false))
  }

  useEffect(() => {
    loadSites()
  }, [])

  const handleCreate = (e: React.FormEvent<HTMLFormElement>) => {
    e.preventDefault()
    const form = e.currentTarget
    const name = (form.elements.namedItem('name') as HTMLInputElement).value.trim()
    const domainsStr = (form.elements.namedItem('domains') as HTMLInputElement).value.trim()
    const path = (form.elements.namedItem('path') as HTMLInputElement).value.trim()
    const ps = (form.elements.namedItem('ps') as HTMLInputElement).value.trim()

    if (!name || !domainsStr) {
      setCreatingError('Name and domain(s) are required')
      return
    }
    const domains = domainsStr.split(/[\s,]+/).filter(Boolean)
    const php_version = (form.elements.namedItem('php_version') as HTMLSelectElement)?.value || '74'
    const force_https = (form.elements.namedItem('force_https') as HTMLInputElement)?.checked || false
    setCreating(true)
    setCreatingError('')
    createSite({ name, domains, path: path || undefined, ps: ps || undefined, php_version, force_https })
      .then(() => {
        setShowCreate(false)
        form.reset()
        loadSites()
      })
      .catch((err) => setCreatingError(err.message))
      .finally(() => setCreating(false))
  }

  const handleDelete = (id: number, name: string) => {
    if (!confirm(`Delete site "${name}"? This cannot be undone.`)) return
    deleteSite(id)
      .then(loadSites)
      .catch((err) => setError(err.message))
  }

  const openBackupModal = (siteId: number) => {
    setBackupSiteId(siteId)
    setBackups([])
    listSiteBackups(siteId)
      .then((data) => setBackups(data.backups))
      .catch((err) => setError(err.message))
  }

  const handleCreateBackup = () => {
    if (!backupSiteId) return
    setBackupLoading(true)
    createSiteBackup(backupSiteId)
      .then(() => listSiteBackups(backupSiteId).then((d) => setBackups(d.backups)))
      .catch((err) => setError(err.message))
      .finally(() => setBackupLoading(false))
  }

  const handleRestore = (filename: string) => {
    if (!backupSiteId || !confirm(`Restore from ${filename}? This will overwrite existing files.`)) return
    setBackupLoading(true)
    restoreSiteBackup(backupSiteId, filename)
      .then(() => setBackupSiteId(null))
      .catch((err) => setError(err.message))
      .finally(() => setBackupLoading(false))
  }

  const handleDownloadBackup = (filename: string) => {
    if (!backupSiteId) return
    downloadSiteBackup(backupSiteId, filename).catch((err) => setError(err.message))
  }

  const openEditModal = (siteId: number) => {
    setEditSiteId(siteId)
    setEditError('')
    getSite(siteId)
      .then((s) => setEditForm({
        domains: (s.domains || []).join(', '),
        path: s.path || '',
        ps: s.ps || '',
        php_version: s.php_version || '74',
        force_https: !!(s.force_https && s.force_https !== 0),
      }))
      .catch((err) => setEditError(err.message))
  }

  const handleEdit = (e: React.FormEvent<HTMLFormElement>) => {
    e.preventDefault()
    if (!editSiteId || !editForm) return
    const domains = editForm.domains.split(/[\s,]+/).filter(Boolean)
    if (domains.length === 0) {
      setEditError('At least one domain is required')
      return
    }
    setEditLoading(true)
    setEditError('')
    updateSite(editSiteId, {
      domains,
      path: editForm.path || undefined,
      ps: editForm.ps || undefined,
      php_version: editForm.php_version,
      force_https: editForm.force_https,
    })
      .then(() => {
        setEditSiteId(null)
        setEditForm(null)
        loadSites()
      })
      .catch((err) => setEditError(err.message))
      .finally(() => setEditLoading(false))
  }

  const handleSetStatus = (siteId: number, enable: boolean) => {
    setStatusLoading(siteId)
    setSiteStatus(siteId, enable)
      .then(loadSites)
      .catch((err) => setError(err.message))
      .finally(() => setStatusLoading(null))
  }

  const openRedirectModal = (siteId: number) => {
    setRedirectSiteId(siteId)
    setRedirectSource('')
    setRedirectTarget('')
    setRedirectCode(301)
    listSiteRedirects(siteId)
      .then(setRedirects)
      .catch((err) => setError(err.message))
  }

  const handleAddRedirect = (e: React.FormEvent) => {
    e.preventDefault()
    if (!redirectSiteId || !redirectSource.trim() || !redirectTarget.trim()) return
    setRedirectAdding(true)
    addSiteRedirect(redirectSiteId, redirectSource.trim(), redirectTarget.trim(), redirectCode)
      .then(() => listSiteRedirects(redirectSiteId).then(setRedirects))
      .then(() => { setRedirectSource(''); setRedirectTarget('') })
      .catch((err) => setError(err.message))
      .finally(() => setRedirectAdding(false))
  }

  const handleDeleteRedirect = (redirectId: number) => {
    if (!redirectSiteId) return
    deleteSiteRedirect(redirectSiteId, redirectId)
      .then(() => listSiteRedirects(redirectSiteId).then(setRedirects))
      .catch((err) => setError(err.message))
  }

  const formatSize = (bytes: number) => {
    if (bytes < 1024) return bytes + ' B'
    if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB'
    return (bytes / 1024 / 1024).toFixed(1) + ' MB'
  }

  if (loading) return <div className="text-gray-500">Loading...</div>
  if (error) return <div className="p-4 rounded bg-red-100 text-red-700">{error}</div>

  return (
    <div>
      <div className="flex justify-between items-center mb-4">
        <h1 className="text-2xl font-bold text-gray-800 dark:text-white">Website</h1>
        <button
          onClick={() => setShowCreate(true)}
          className="flex items-center gap-2 px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg font-medium"
        >
          <Plus className="w-4 h-4" />
          Add Site
        </button>
      </div>

      {showCreate && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-6 w-full max-w-md">
            <h2 className="text-xl font-bold mb-4 text-gray-800 dark:text-white">Create Site</h2>
            <form onSubmit={handleCreate} className="space-y-4">
              {creatingError && (
                <div className="p-2 rounded bg-red-100 dark:bg-red-900/30 text-red-700 dark:text-red-300 text-sm">
                  {creatingError}
                </div>
              )}
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Site Name
                </label>
                <input
                  name="name"
                  type="text"
                  placeholder="example.com"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                  required
                />
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Domain(s) <span className="text-gray-500">(comma or space separated)</span>
                </label>
                <input
                  name="domains"
                  type="text"
                  placeholder="example.com www.example.com"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                  required
                />
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Path <span className="text-gray-500">(optional)</span>
                </label>
                <input
                  name="path"
                  type="text"
                  placeholder="/www/wwwroot/example.com"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                />
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  PHP Version
                </label>
                <select
                  name="php_version"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                >
                  <option value="74">7.4</option>
                  <option value="80">8.0</option>
                  <option value="81">8.1</option>
                  <option value="82">8.2</option>
                </select>
              </div>
              <div className="flex items-center gap-2">
                <input name="force_https" type="checkbox" id="create_force_https" className="rounded" />
                <label htmlFor="create_force_https" className="text-sm text-gray-700 dark:text-gray-300">
                  Force HTTPS (redirect HTTP to HTTPS)
                </label>
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Note <span className="text-gray-500">(optional)</span>
                </label>
                <input
                  name="ps"
                  type="text"
                  placeholder="My website"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                />
              </div>
              <div className="flex gap-2 justify-end pt-2">
                <button
                  type="button"
                  onClick={() => setShowCreate(false)}
                  className="px-4 py-2 text-gray-600 dark:text-gray-400 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg"
                >
                  Cancel
                </button>
                <button
                  type="submit"
                  disabled={creating}
                  className="px-4 py-2 bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white rounded-lg font-medium"
                >
                  {creating ? 'Creating...' : 'Create'}
                </button>
              </div>
            </form>
          </div>
        </div>
      )}

      <div className="bg-white dark:bg-gray-800 rounded-lg shadow overflow-hidden">
        <table className="min-w-full divide-y divide-gray-200 dark:divide-gray-700">
          <thead className="bg-gray-50 dark:bg-gray-700">
            <tr>
              <th className="px-4 py-2 text-left text-sm font-medium text-gray-700 dark:text-gray-300">Name</th>
              <th className="px-4 py-2 text-left text-sm font-medium text-gray-700 dark:text-gray-300">Path</th>
              <th className="px-4 py-2 text-left text-sm font-medium text-gray-700 dark:text-gray-300">Domains</th>
              <th className="px-4 py-2 text-left text-sm font-medium text-gray-700 dark:text-gray-300">Type</th>
              <th className="px-4 py-2 text-right text-sm font-medium text-gray-700 dark:text-gray-300">Actions</th>
            </tr>
          </thead>
          <tbody className="divide-y divide-gray-200 dark:divide-gray-700">
            {sites.length === 0 ? (
              <tr>
                <td colSpan={5} className="px-4 py-8 text-center text-gray-500">
                  No sites yet. Click "Add Site" to create one.
                </td>
              </tr>
            ) : (
              sites.map((s) => (
                <tr key={s.id}>
                  <td className="px-4 py-2 text-gray-900 dark:text-white">{s.name}</td>
                  <td className="px-4 py-2 text-gray-600 dark:text-gray-400">{s.path}</td>
                  <td className="px-4 py-2 text-gray-600 dark:text-gray-400">{s.domain_count}</td>
                  <td className="px-4 py-2 text-gray-600 dark:text-gray-400">{s.project_type}</td>
                  <td className="px-4 py-2 text-right">
                    <span className="flex gap-1 justify-end">
                      {s.status === 1 ? (
                        <button
                          onClick={() => handleSetStatus(s.id, false)}
                          disabled={statusLoading === s.id}
                          className="p-2 text-amber-600 hover:bg-amber-50 dark:hover:bg-amber-900/20 rounded disabled:opacity-50"
                          title="Stop"
                        >
                          <Square className="w-4 h-4" />
                        </button>
                      ) : (
                        <button
                          onClick={() => handleSetStatus(s.id, true)}
                          disabled={statusLoading === s.id}
                          className="p-2 text-green-600 hover:bg-green-50 dark:hover:bg-green-900/20 rounded disabled:opacity-50"
                          title="Start"
                        >
                          <Play className="w-4 h-4" />
                        </button>
                      )}
                      <button
                        onClick={() => { setGitSiteId(s.id); setGitAction('clone'); setGitUrl(''); setGitBranch('main') }}
                        className="p-2 text-emerald-600 hover:bg-emerald-50 dark:hover:bg-emerald-900/20 rounded"
                        title="Git Deploy"
                      >
                        <GitBranch className="w-4 h-4" />
                      </button>
                      <button
                        onClick={() => openRedirectModal(s.id)}
                        className="p-2 text-purple-600 hover:bg-purple-50 dark:hover:bg-purple-900/20 rounded"
                        title="Redirects"
                      >
                        <Redirect className="w-4 h-4" />
                      </button>
                      <button
                        onClick={() => openEditModal(s.id)}
                        className="p-2 text-blue-600 hover:bg-blue-50 dark:hover:bg-blue-900/20 rounded"
                        title="Edit"
                      >
                        <Pencil className="w-4 h-4" />
                      </button>
                      <button
                        onClick={() => openBackupModal(s.id)}
                        className="p-2 text-blue-600 hover:bg-blue-50 dark:hover:bg-blue-900/20 rounded"
                        title="Backup"
                      >
                        <Archive className="w-4 h-4" />
                      </button>
                      <button
                        onClick={() => handleDelete(s.id, s.name)}
                        className="p-2 text-red-600 hover:bg-red-50 dark:hover:bg-red-900/20 rounded"
                        title="Delete"
                      >
                        <Trash2 className="w-4 h-4" />
                      </button>
                    </span>
                  </td>
                </tr>
              ))
            )}
          </tbody>
        </table>
      </div>

      {gitSiteId && gitAction && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-6 w-full max-w-md">
            <h2 className="text-xl font-bold mb-4 text-gray-800 dark:text-white">Git Deploy</h2>
            <div className="flex gap-2 mb-4">
              <button
                type="button"
                onClick={() => setGitAction('clone')}
                className={`px-3 py-1.5 rounded text-sm ${gitAction === 'clone' ? 'bg-emerald-600 text-white' : 'bg-gray-200 dark:bg-gray-700'}`}
              >
                Clone
              </button>
              <button
                type="button"
                onClick={() => setGitAction('pull')}
                className={`px-3 py-1.5 rounded text-sm ${gitAction === 'pull' ? 'bg-emerald-600 text-white' : 'bg-gray-200 dark:bg-gray-700'}`}
              >
                Pull
              </button>
            </div>
            {gitAction === 'clone' ? (
              <form onSubmit={handleGitClone} className="space-y-4">
                <div>
                  <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Repository URL</label>
                  <input
                    value={gitUrl}
                    onChange={(e) => setGitUrl(e.target.value)}
                    placeholder="https://github.com/user/repo.git"
                    className="w-full px-4 py-2 border rounded-lg bg-white dark:bg-gray-700"
                    required
                  />
                </div>
                <div>
                  <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Branch</label>
                  <input
                    value={gitBranch}
                    onChange={(e) => setGitBranch(e.target.value)}
                    placeholder="main"
                    className="w-full px-4 py-2 border rounded-lg bg-white dark:bg-gray-700"
                  />
                </div>
                <p className="text-xs text-gray-500">Site path must be empty. This will clone the repo into the site directory.</p>
                <div className="flex gap-2 justify-end">
                  <button type="button" onClick={() => { setGitSiteId(null); setGitAction(null) }} className="px-4 py-2 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700">Cancel</button>
                  <button type="submit" disabled={gitLoading} className="px-4 py-2 bg-emerald-600 text-white rounded-lg disabled:opacity-50">
                    {gitLoading ? 'Cloning...' : 'Clone'}
                  </button>
                </div>
              </form>
            ) : (
              <div>
                <p className="text-sm text-gray-600 dark:text-gray-400 mb-4">Pull latest changes from the remote repository.</p>
                <div className="flex gap-2 justify-end">
                  <button type="button" onClick={() => { setGitSiteId(null); setGitAction(null) }} className="px-4 py-2 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700">Cancel</button>
                  <button onClick={handleGitPull} disabled={gitLoading} className="px-4 py-2 bg-emerald-600 text-white rounded-lg disabled:opacity-50">
                    {gitLoading ? 'Pulling...' : 'Pull'}
                  </button>
                </div>
              </div>
            )}
          </div>
        </div>
      )}

      {redirectSiteId && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-6 w-full max-w-lg">
            <h2 className="text-xl font-bold mb-4 text-gray-800 dark:text-white">Redirects</h2>
            <form onSubmit={handleAddRedirect} className="space-y-2 mb-4">
              <div className="flex gap-2 flex-wrap">
                <input
                  value={redirectSource}
                  onChange={(e) => setRedirectSource(e.target.value)}
                  placeholder="/old-path"
                  className="flex-1 min-w-[100px] px-3 py-2 border rounded-lg bg-white dark:bg-gray-700"
                />
                <span className="self-center text-gray-500">→</span>
                <input
                  value={redirectTarget}
                  onChange={(e) => setRedirectTarget(e.target.value)}
                  placeholder="/new-path or https://..."
                  className="flex-1 min-w-[100px] px-3 py-2 border rounded-lg bg-white dark:bg-gray-700"
                />
                <select
                  value={redirectCode}
                  onChange={(e) => setRedirectCode(Number(e.target.value))}
                  className="px-3 py-2 border rounded-lg bg-white dark:bg-gray-700"
                >
                  <option value={301}>301</option>
                  <option value={302}>302</option>
                </select>
                <button type="submit" disabled={redirectAdding} className="px-4 py-2 bg-blue-600 text-white rounded-lg disabled:opacity-50">
                  Add
                </button>
              </div>
            </form>
            <div className="max-h-48 overflow-y-auto">
              {redirects.length === 0 ? (
                <p className="text-gray-500 text-sm">No redirects</p>
              ) : (
                <ul className="space-y-2">
                  {redirects.map((r) => (
                    <li key={r.id} className="flex items-center justify-between gap-2 text-sm py-1 border-b dark:border-gray-700">
                      <span className="font-mono truncate">{r.source}</span>
                      <span className="text-gray-500">→</span>
                      <span className="font-mono truncate flex-1">{r.target}</span>
                      <span className="text-gray-400">{r.code}</span>
                      <button onClick={() => handleDeleteRedirect(r.id)} className="p-1 text-red-600 hover:bg-red-50 rounded">
                        <Trash2 className="w-4 h-4" />
                      </button>
                    </li>
                  ))}
                </ul>
              )}
            </div>
            <div className="mt-4 flex justify-end">
              <button onClick={() => setRedirectSiteId(null)} className="px-4 py-2 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-700">
                Close
              </button>
            </div>
          </div>
        </div>
      )}

      {editSiteId && editForm && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-6 w-full max-w-md">
            <h2 className="text-xl font-bold mb-4 text-gray-800 dark:text-white">Edit Site</h2>
            <form onSubmit={handleEdit} className="space-y-4">
              {editError && (
                <div className="p-2 rounded bg-red-100 dark:bg-red-900/30 text-red-700 dark:text-red-300 text-sm">
                  {editError}
                </div>
              )}
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Domain(s) <span className="text-gray-500">(comma or space separated)</span>
                </label>
                <input
                  value={editForm.domains}
                  onChange={(e) => setEditForm({ ...editForm, domains: e.target.value })}
                  type="text"
                  placeholder="example.com www.example.com"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                  required
                />
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Path <span className="text-gray-500">(optional)</span>
                </label>
                <input
                  value={editForm.path}
                  onChange={(e) => setEditForm({ ...editForm, path: e.target.value })}
                  type="text"
                  placeholder="/www/wwwroot/example.com"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                />
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">PHP Version</label>
                <select
                  value={editForm.php_version}
                  onChange={(e) => setEditForm({ ...editForm, php_version: e.target.value })}
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                >
                  <option value="74">7.4</option>
                  <option value="80">8.0</option>
                  <option value="81">8.1</option>
                  <option value="82">8.2</option>
                </select>
              </div>
              <div className="flex items-center gap-2">
                <input
                  type="checkbox"
                  id="edit_force_https"
                  checked={editForm.force_https}
                  onChange={(e) => setEditForm({ ...editForm, force_https: e.target.checked })}
                  className="rounded"
                />
                <label htmlFor="edit_force_https" className="text-sm text-gray-700 dark:text-gray-300">
                  Force HTTPS
                </label>
              </div>
              <div>
                <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                  Note <span className="text-gray-500">(optional)</span>
                </label>
                <input
                  value={editForm.ps}
                  onChange={(e) => setEditForm({ ...editForm, ps: e.target.value })}
                  type="text"
                  placeholder="My website"
                  className="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white"
                />
              </div>
              <div className="flex gap-2 justify-end pt-2">
                <button
                  type="button"
                  onClick={() => { setEditSiteId(null); setEditForm(null) }}
                  className="px-4 py-2 text-gray-600 dark:text-gray-400 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg"
                >
                  Cancel
                </button>
                <button
                  type="submit"
                  disabled={editLoading}
                  className="px-4 py-2 bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white rounded-lg font-medium"
                >
                  {editLoading ? 'Saving...' : 'Save'}
                </button>
              </div>
            </form>
          </div>
        </div>
      )}

      {backupSiteId && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
          <div className="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-6 w-full max-w-lg">
            <h2 className="text-xl font-bold mb-4 text-gray-800 dark:text-white">Site Backup</h2>
            <div className="mb-4">
              <button
                onClick={handleCreateBackup}
                disabled={backupLoading}
                className="flex items-center gap-2 px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg disabled:opacity-50"
              >
                <Archive className="w-4 h-4" />
                {backupLoading ? 'Creating...' : 'Create Backup'}
              </button>
            </div>
            <div className="mb-4">
              <h3 className="text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">Existing backups</h3>
              {backups.length === 0 ? (
                <p className="text-gray-500 text-sm">No backups yet</p>
              ) : (
                <ul className="space-y-2 max-h-48 overflow-y-auto">
                  {backups.map((b) => (
                    <li key={b.filename} className="flex items-center justify-between gap-2 text-sm">
                      <span className="truncate font-mono text-gray-700 dark:text-gray-300 flex-1">{b.filename}</span>
                      <span className="text-gray-500 text-xs flex-shrink-0">{formatSize(b.size)}</span>
                      <span className="flex gap-1 flex-shrink-0">
                        <button
                          onClick={() => handleDownloadBackup(b.filename)}
                          className="p-1.5 text-blue-600 hover:bg-blue-50 dark:hover:bg-blue-900/20 rounded"
                          title="Download"
                        >
                          <Download className="w-4 h-4" />
                        </button>
                        <button
                          onClick={() => handleRestore(b.filename)}
                          disabled={backupLoading}
                          className="p-1.5 text-amber-600 hover:bg-amber-50 dark:hover:bg-amber-900/20 rounded disabled:opacity-50"
                          title="Restore"
                        >
                          <RotateCcw className="w-4 h-4" />
                        </button>
                      </span>
                    </li>
                  ))}
                </ul>
              )}
            </div>
            <div className="flex justify-end">
              <button
                onClick={() => setBackupSiteId(null)}
                className="px-4 py-2 text-gray-600 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-lg"
              >
                Close
              </button>
            </div>
          </div>
        </div>
      )}
    </div>
  )
}
