Update Next.js configuration for S3 support and enhance admin dashboard functionality - Added S3 hostname to next.config.js for image uploads - Updated package.json and package-lock.json with AWS SDK dependencies - Improved admin layout with S3 status component and enhanced dashboard statistics loading logic - Refactored news loading in NewsBlock component to handle errors gracefully.

lib/hooks/useFileUpload.ts

@@ -0,0 +1,114 @@
+import { useState, useCallback } from 'react';
+
+export interface UploadOptions {
+  folder?: string;
+  maxSize?: number; // в MB
+  allowedTypes?: string[];
+}
+
+export interface UploadResult {
+  key: string;
+  url: string;
+  publicUrl: string;
+}
+
+export interface UseFileUploadReturn {
+  uploadFile: (file: File, options?: UploadOptions) => Promise<UploadResult>;
+  deleteFile: (url: string) => Promise<void>;
+  isUploading: boolean;
+  error: string | null;
+  clearError: () => void;
+}
+
+export function useFileUpload(): UseFileUploadReturn {
+  const [isUploading, setIsUploading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const clearError = useCallback(() => {
+    setError(null);
+  }, []);
+
+  const uploadFile = useCallback(async (
+    file: File,
+    options: UploadOptions = {}
+  ): Promise<UploadResult> => {
+    const {
+      folder = 'uploads',
+      maxSize = 10,
+      allowedTypes = [
+        'image/jpeg',
+        'image/png',
+        'image/gif',
+        'image/webp',
+        'image/svg+xml',
+        'application/pdf',
+        'application/msword',
+        'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+      ]
+    } = options;
+
+    setIsUploading(true);
+    setError(null);
+
+    try {
+      // Валидация размера файла
+      if (file.size > maxSize * 1024 * 1024) {
+        throw new Error(`Файл слишком большой. Максимальный размер: ${maxSize} MB`);
+      }
+
+      // Валидация типа файла
+      if (!allowedTypes.includes(file.type)) {
+        throw new Error(`Неподдерживаемый тип файла. Разрешены: ${allowedTypes.join(', ')}`);
+      }
+
+      const formData = new FormData();
+      formData.append('file', file);
+      formData.append('folder', folder);
+
+      const response = await fetch('/api/upload', {
+        method: 'POST',
+        body: formData,
+      });
+
+      const result = await response.json();
+
+      if (!response.ok) {
+        throw new Error(result.error || 'Ошибка при загрузке файла');
+      }
+
+      return result.data;
+    } catch (err) {
+      const errorMessage = err instanceof Error ? err.message : 'Ошибка при загрузке файла';
+      setError(errorMessage);
+      throw new Error(errorMessage);
+    } finally {
+      setIsUploading(false);
+    }
+  }, []);
+
+  const deleteFile = useCallback(async (url: string): Promise<void> => {
+    try {
+      const response = await fetch(`/api/upload?url=${encodeURIComponent(url)}`, {
+        method: 'DELETE',
+      });
+
+      const result = await response.json();
+
+      if (!response.ok) {
+        throw new Error(result.error || 'Ошибка при удалении файла');
+      }
+    } catch (err) {
+      const errorMessage = err instanceof Error ? err.message : 'Ошибка при удалении файла';
+      setError(errorMessage);
+      throw new Error(errorMessage);
+    }
+  }, []);
+
+  return {
+    uploadFile,
+    deleteFile,
+    isUploading,
+    error,
+    clearError,
+  };
+}