Add maintenance management features: implement maintenance endpoints in the API, enhance media upload handling to skip duplicate files, and update frontend routes and translations for maintenance operations.

frontend/src/features/admin/maintenance/MaintenancePanel.tsx

@@ -0,0 +1,132 @@
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
+import { useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import { AlertTriangle } from 'lucide-react'
+import { HttpError } from '@/shared/api/client'
+import { Button } from '@/shared/ui/button'
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/shared/ui/card'
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/shared/ui/select'
+import { toast } from '@/shared/ui/toast-store'
+import { listShows } from '@/features/admin/shows/api'
+import { clearAllMedia, deleteAllShows, deleteShowMedia } from './api'
+
+export function MaintenancePanel() {
+  const { t } = useTranslation()
+  const queryClient = useQueryClient()
+  const [showId, setShowId] = useState('')
+
+  const { data: shows } = useQuery({ queryKey: ['admin', 'shows'], queryFn: listShows })
+
+  const onError = (error: unknown) =>
+    toast.error(error instanceof HttpError ? error.detail : t('common.error'))
+
+  // Затрагиваются медиа/шоу/каналы — сбрасываем все связанные кэши.
+  const invalidateAll = () => {
+    for (const key of [['admin', 'media'], ['admin', 'shows'], ['admin', 'channels']])
+      void queryClient.invalidateQueries({ queryKey: key })
+  }
+
+  const clearMedia = useMutation({
+    mutationFn: clearAllMedia,
+    onSuccess: (count) => {
+      toast.success(t('admin.maintenance.doneCount', { count }))
+      invalidateAll()
+    },
+    onError,
+  })
+
+  const clearShows = useMutation({
+    mutationFn: deleteAllShows,
+    onSuccess: (count) => {
+      toast.success(t('admin.maintenance.doneCount', { count }))
+      invalidateAll()
+    },
+    onError,
+  })
+
+  const clearShowMedia = useMutation({
+    mutationFn: () => deleteShowMedia(showId),
+    onSuccess: (count) => {
+      setShowId('')
+      toast.success(t('admin.maintenance.doneCount', { count }))
+      invalidateAll()
+    },
+    onError,
+  })
+
+  const confirmed = (message: string, run: () => void) => {
+    if (window.confirm(message)) run()
+  }
+
+  return (
+    <div className="flex flex-col gap-4">
+      <div className="flex items-center gap-2">
+        <AlertTriangle className="h-5 w-5 text-red-500" />
+        <h2 className="crt-glow text-xl font-semibold">{t('admin.maintenance.title')}</h2>
+      </div>
+      <p className="text-sm text-muted-foreground">{t('admin.maintenance.warning')}</p>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>{t('admin.maintenance.clearMedia')}</CardTitle>
+          <CardDescription>{t('admin.maintenance.clearMediaHint')}</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Button
+            variant="destructive"
+            disabled={clearMedia.isPending}
+            onClick={() => confirmed(t('admin.maintenance.confirmClearMedia'), () => clearMedia.mutate())}
+          >
+            {t('admin.maintenance.clearMedia')}
+          </Button>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>{t('admin.maintenance.clearShowMedia')}</CardTitle>
+          <CardDescription>{t('admin.maintenance.clearShowMediaHint')}</CardDescription>
+        </CardHeader>
+        <CardContent className="flex flex-wrap items-center gap-2">
+          <Select value={showId} onValueChange={setShowId}>
+            <SelectTrigger className="max-w-xs">
+              <SelectValue placeholder={t('admin.maintenance.pickShow')} />
+            </SelectTrigger>
+            <SelectContent>
+              {shows?.map((s) => (
+                <SelectItem key={s.id} value={s.id}>
+                  {s.name}
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+          <Button
+            variant="destructive"
+            disabled={!showId || clearShowMedia.isPending}
+            onClick={() =>
+              confirmed(t('admin.maintenance.confirmClearShowMedia'), () => clearShowMedia.mutate())
+            }
+          >
+            {t('admin.maintenance.clearShowMedia')}
+          </Button>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>{t('admin.maintenance.deleteShows')}</CardTitle>
+          <CardDescription>{t('admin.maintenance.deleteShowsHint')}</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Button
+            variant="destructive"
+            disabled={clearShows.isPending}
+            onClick={() => confirmed(t('admin.maintenance.confirmDeleteShows'), () => clearShows.mutate())}
+          >
+            {t('admin.maintenance.deleteShows')}
+          </Button>
+        </CardContent>
+      </Card>
+    </div>
+  )
+}

frontend/src/features/admin/maintenance/api.ts

@@ -0,0 +1,13 @@
+import { apiRequest } from '@/shared/api/client'
+
+export function clearAllMedia() {
+  return apiRequest<number>('/admin/maintenance/clear-media', { method: 'POST' })
+}
+
+export function deleteAllShows() {
+  return apiRequest<number>('/admin/maintenance/clear-shows', { method: 'POST' })
+}
+
+export function deleteShowMedia(showId: string) {
+  return apiRequest<number>(`/admin/maintenance/shows/${showId}/clear-media`, { method: 'POST' })
+}

frontend/src/features/admin/media/MediaPanel.tsx

@@ -64,15 +64,31 @@ export function MediaPanel() {
   const deleteMutation = useMutation({ mutationFn: deleteMedia, onSuccess: invalidate, onError })
 
   // Массовая загрузка: файлы отправляются по одному (обработка всё равно в очереди по одному),
-  // прогресс — «текущий/всего · %». Список обновляется после каждого файла.
+  // прогресс — «текущий/всего · %». Дубликаты по имени пропускаются заранее (сервер тоже отклонит).
   const handleFiles = async (files: FileList) => {
     const list = Array.from(files)
+
+    let existing = new Set<string>()
+    try {
+      const all = await listMedia({
+        page: 1,
+        pageSize: 1000,
+        statuses: ['Pending', 'Processing', 'Ready'],
+      })
+      existing = new Set(all.items.map((a) => a.originalFileName))
+    } catch {
+      // Не удалось получить список — положимся на серверную проверку дубликатов.
+    }
+
+    const toUpload = list.filter((f) => !existing.has(f.name))
+    const skipped = list.length - toUpload.length
+
     let uploaded = 0
-    for (let i = 0; i < list.length; i++) {
-      setUpload({ current: i + 1, total: list.length, percent: 0 })
+    for (let i = 0; i < toUpload.length; i++) {
+      setUpload({ current: i + 1, total: toUpload.length, percent: 0 })
       try {
-        await uploadMedia(list[i], (percent) =>
-          setUpload({ current: i + 1, total: list.length, percent }),
+        await uploadMedia(toUpload[i], (percent) =>
+          setUpload({ current: i + 1, total: toUpload.length, percent }),
         )
         uploaded++
         invalidate()
@@ -83,6 +99,7 @@ export function MediaPanel() {
     setUpload(null)
     if (fileInput.current) fileInput.current.value = ''
     if (uploaded > 0) toast.success(t('admin.media.uploadedCount', { count: uploaded }))
+    if (skipped > 0) toast.message(t('admin.media.skippedDuplicates', { count: skipped }))
   }
 
   return (