Add complete CKE Project implementation with news management system

app/admin/news/[id]/edit/page.tsx

@@ -0,0 +1,545 @@
+'use client';
+
+import React, { useState, useEffect } from 'react';
+import { useRouter } from 'next/navigation';
+import Link from 'next/link';
+import { ArrowLeft, Save, Eye, Upload, X, Trash2 } from 'lucide-react';
+import { NEWS_CATEGORIES, NewsFormData, NewsCategory } from '@/lib/types';
+// import { getNewsById } from '@/lib/news-data';
+
+interface EditNewsPageProps {
+  params: Promise<{
+    id: string;
+  }>;
+}
+
+export default function EditNewsPage({ params }: EditNewsPageProps) {
+  const router = useRouter();
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const [showPreview, setShowPreview] = useState(false);
+  const [imagePreview, setImagePreview] = useState<string>('');
+  const [isLoading, setIsLoading] = useState(true);
+  const [newsId, setNewsId] = useState<string>('');
+  
+  const [formData, setFormData] = useState<NewsFormData>({
+    title: '',
+    summary: '',
+    content: '',
+    category: 'company',
+    imageUrl: '',
+    featured: false,
+    published: true,
+    publishedAt: new Date().toISOString().slice(0, 16),
+    tags: []
+  });
+
+  const [errors, setErrors] = useState<Partial<NewsFormData>>({});
+  const [tagInput, setTagInput] = useState('');
+
+  useEffect(() => {
+    const loadNews = async () => {
+      const resolvedParams = await params;
+      const id = resolvedParams.id;
+      setNewsId(id);
+      
+      try {
+        const response = await fetch(`/api/news/${id}`);
+        const data = await response.json();
+        
+        if (data.success && data.data) {
+          const news = data.data;
+          setFormData({
+            title: news.title,
+            summary: news.summary,
+            content: news.content,
+            category: news.category,
+            imageUrl: news.imageUrl || '',
+            featured: news.featured || false,
+            published: news.published !== false,
+            publishedAt: new Date(news.publishedAt).toISOString().slice(0, 16),
+            tags: news.tags || []
+          });
+          
+          if (news.imageUrl) {
+            setImagePreview(news.imageUrl);
+          }
+        }
+      } catch (error) {
+        console.error('Error loading news:', error);
+      }
+      setIsLoading(false);
+    };
+
+    loadNews();
+  }, [params]);
+
+  const validateForm = (): boolean => {
+    const newErrors: Partial<NewsFormData> = {};
+
+    if (!formData.title.trim()) {
+      newErrors.title = 'Заголовок обязателен';
+    }
+
+    if (!formData.summary.trim()) {
+      newErrors.summary = 'Краткое описание обязательно';
+    }
+
+    if (!formData.content.trim()) {
+      newErrors.content = 'Содержание обязательно';
+    }
+
+    if (formData.summary.length > 200) {
+      newErrors.summary = 'Краткое описание не должно превышать 200 символов';
+    }
+
+    setErrors(newErrors);
+    return Object.keys(newErrors).length === 0;
+  };
+
+  const generateSlug = (title: string): string => {
+    return title
+      .toLowerCase()
+      .replace(/[а-я]/g, (char) => {
+        const map: { [key: string]: string } = {
+          'а': 'a', 'б': 'b', 'в': 'v', 'г': 'g', 'д': 'd', 'е': 'e', 'ё': 'yo',
+          'ж': 'zh', 'з': 'z', 'и': 'i', 'й': 'j', 'к': 'k', 'л': 'l', 'м': 'm',
+          'н': 'n', 'о': 'o', 'п': 'p', 'р': 'r', 'с': 's', 'т': 't', 'у': 'u',
+          'ф': 'f', 'х': 'h', 'ц': 'c', 'ч': 'ch', 'ш': 'sh', 'щ': 'sch',
+          'ъ': '', 'ы': 'y', 'ь': '', 'э': 'e', 'ю': 'yu', 'я': 'ya'
+        };
+        return map[char] || char;
+      })
+      .replace(/[^a-z0-9]+/g, '-')
+      .replace(/^-+|-+$/g, '');
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    
+    if (!validateForm()) {
+      return;
+    }
+
+    setIsSubmitting(true);
+
+    try {
+      // Генерируем slug
+      const slug = generateSlug(formData.title);
+      
+      // Обновляем новость через API
+      const response = await fetch(`/api/news/${newsId}`, {
+        method: 'PUT',
+        headers: {
+          'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+          ...formData,
+          slug,
+          publishedAt: new Date(formData.publishedAt).toISOString()
+        })
+      });
+
+      const data = await response.json();
+      
+      if (data.success) {
+        router.push('/admin/news');
+      } else {
+        console.error('Error updating news:', data.error);
+        alert('Ошибка при сохранении новости');
+      }
+    } catch (error) {
+      console.error('Error updating news:', error);
+      alert('Ошибка при сохранении новости');
+    } finally {
+      setIsSubmitting(false);
+    }
+  };
+
+  const handleDelete = async () => {
+    if (!confirm('Вы уверены, что хотите удалить эту новость? Это действие нельзя отменить.')) {
+      return;
+    }
+
+    try {
+      const response = await fetch(`/api/news/${newsId}`, {
+        method: 'DELETE'
+      });
+
+      const data = await response.json();
+      
+      if (data.success) {
+        router.push('/admin/news');
+      } else {
+        console.error('Error deleting news:', data.error);
+        alert('Ошибка при удалении новости');
+      }
+    } catch (error) {
+      console.error('Error deleting news:', error);
+      alert('Ошибка при удалении новости');
+    }
+  };
+
+  const handleImageUpload = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (file) {
+      const reader = new FileReader();
+      reader.onload = (e) => {
+        const result = e.target?.result as string;
+        setImagePreview(result);
+        setFormData(prev => ({ ...prev, imageUrl: result }));
+      };
+      reader.readAsDataURL(file);
+    }
+  };
+
+  const removeImage = () => {
+    setImagePreview('');
+    setFormData(prev => ({ ...prev, imageUrl: '' }));
+  };
+
+  const handleAddTag = () => {
+    if (tagInput.trim() && !formData.tags.includes(tagInput.trim())) {
+      setFormData(prev => ({
+        ...prev,
+        tags: [...prev.tags, tagInput.trim()]
+      }));
+      setTagInput('');
+    }
+  };
+
+  const handleRemoveTag = (tagToRemove: string) => {
+    setFormData(prev => ({
+      ...prev,
+      tags: prev.tags.filter(tag => tag !== tagToRemove)
+    }));
+  };
+
+  const formatContentForPreview = (content: string) => {
+    return content
+      .replace(/\n/g, '<br>')
+      .replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>')
+      .replace(/\*(.*?)\*/g, '<em>$1</em>');
+  };
+
+  if (isLoading) {
+    return (
+      <div className="flex items-center justify-center min-h-96">
+        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600"></div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="max-w-4xl mx-auto space-y-6">
+      {/* Header */}
+      <div className="flex items-center justify-between">
+        <div className="flex items-center space-x-4">
+          <Link
+            href="/admin/news"
+            className="flex items-center text-gray-600 hover:text-gray-900"
+          >
+            <ArrowLeft className="h-4 w-4 mr-2" />
+            Назад к списку
+          </Link>
+          <h1 className="text-3xl font-bold text-gray-900">Редактировать новость</h1>
+        </div>
+        
+        <div className="flex items-center space-x-3">
+          <button
+            type="button"
+            onClick={handleDelete}
+            className="flex items-center px-4 py-2 border border-red-300 text-red-600 rounded-md hover:bg-red-50"
+          >
+            <Trash2 className="h-4 w-4 mr-2" />
+            Удалить
+          </button>
+          
+          <button
+            type="button"
+            onClick={() => setShowPreview(!showPreview)}
+            className="flex items-center px-4 py-2 border border-gray-300 rounded-md hover:bg-gray-50"
+          >
+            <Eye className="h-4 w-4 mr-2" />
+            {showPreview ? 'Скрыть превью' : 'Показать превью'}
+          </button>
+        </div>
+      </div>
+
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+        {/* Form */}
+        <div className="bg-white rounded-lg shadow-sm p-6">
+          <form onSubmit={handleSubmit} className="space-y-6">
+            {/* Title */}
+            <div>
+              <label htmlFor="title" className="block text-sm font-medium text-gray-700 mb-2">
+                Заголовок *
+              </label>
+              <input
+                id="title"
+                type="text"
+                value={formData.title}
+                onChange={(e) => setFormData(prev => ({ ...prev, title: e.target.value }))}
+                className={`w-full px-3 py-2 border rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent ${
+                  errors.title ? 'border-red-500' : 'border-gray-300'
+                }`}
+                placeholder="Введите заголовок новости"
+              />
+              {errors.title && (
+                <p className="mt-1 text-sm text-red-600">{errors.title}</p>
+              )}
+            </div>
+
+            {/* Category */}
+            <div>
+              <label htmlFor="category" className="block text-sm font-medium text-gray-700 mb-2">
+                Категория *
+              </label>
+              <select
+                id="category"
+                value={formData.category}
+                onChange={(e) => setFormData(prev => ({ ...prev, category: e.target.value as NewsCategory }))}
+                className="w-full px-3 py-2 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+              >
+                {NEWS_CATEGORIES.map((category) => (
+                  <option key={category.id} value={category.id}>
+                    {category.name}
+                  </option>
+                ))}
+              </select>
+            </div>
+
+            {/* Summary */}
+            <div>
+              <label htmlFor="summary" className="block text-sm font-medium text-gray-700 mb-2">
+                Краткое описание * ({formData.summary.length}/200)
+              </label>
+              <textarea
+                id="summary"
+                value={formData.summary}
+                onChange={(e) => setFormData(prev => ({ ...prev, summary: e.target.value }))}
+                rows={3}
+                className={`w-full px-3 py-2 border rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent ${
+                  errors.summary ? 'border-red-500' : 'border-gray-300'
+                }`}
+                placeholder="Краткое описание новости для превью"
+              />
+              {errors.summary && (
+                <p className="mt-1 text-sm text-red-600">{errors.summary}</p>
+              )}
+            </div>
+
+            {/* Content */}
+            <div>
+              <label htmlFor="content" className="block text-sm font-medium text-gray-700 mb-2">
+                Содержание *
+              </label>
+              <textarea
+                id="content"
+                value={formData.content}
+                onChange={(e) => setFormData(prev => ({ ...prev, content: e.target.value }))}
+                rows={12}
+                className={`w-full px-3 py-2 border rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent ${
+                  errors.content ? 'border-red-500' : 'border-gray-300'
+                }`}
+                placeholder="Полное содержание новости. Поддерживается простая разметка: **жирный**, *курсив*"
+              />
+              {errors.content && (
+                <p className="mt-1 text-sm text-red-600">{errors.content}</p>
+              )}
+            </div>
+
+            {/* Tags */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Теги
+              </label>
+              <div className="flex flex-wrap gap-2 mb-2">
+                {formData.tags.map((tag, index) => (
+                  <span
+                    key={index}
+                    className="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-blue-100 text-blue-800"
+                  >
+                    {tag}
+                    <button
+                      type="button"
+                      onClick={() => handleRemoveTag(tag)}
+                      className="ml-1 text-blue-600 hover:text-blue-800"
+                    >
+                      <X className="h-3 w-3" />
+                    </button>
+                  </span>
+                ))}
+              </div>
+              <div className="flex gap-2">
+                <input
+                  type="text"
+                  value={tagInput}
+                  onChange={(e) => setTagInput(e.target.value)}
+                  onKeyPress={(e) => e.key === 'Enter' && (e.preventDefault(), handleAddTag())}
+                  className="flex-1 px-3 py-2 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+                  placeholder="Добавить тег"
+                />
+                <button
+                  type="button"
+                  onClick={handleAddTag}
+                  className="px-4 py-2 bg-blue-600 text-white rounded-md hover:bg-blue-700"
+                >
+                  Добавить
+                </button>
+              </div>
+            </div>
+
+            {/* Image Upload */}
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-2">
+                Изображение
+              </label>
+              {imagePreview ? (
+                <div className="relative">
+                  <img
+                    src={imagePreview}
+                    alt="Preview"
+                    className="w-full h-48 object-cover rounded-md"
+                  />
+                  <button
+                    type="button"
+                    onClick={removeImage}
+                    className="absolute top-2 right-2 p-1 bg-red-500 text-white rounded-full hover:bg-red-600"
+                  >
+                    <X className="h-4 w-4" />
+                  </button>
+                </div>
+              ) : (
+                <div className="border-2 border-dashed border-gray-300 rounded-md p-6 text-center">
+                  <Upload className="mx-auto h-12 w-12 text-gray-400 mb-4" />
+                  <label htmlFor="image-upload" className="cursor-pointer">
+                    <span className="text-blue-600 hover:text-blue-800">Загрузить изображение</span>
+                    <input
+                      id="image-upload"
+                      type="file"
+                      accept="image/*"
+                      onChange={handleImageUpload}
+                      className="hidden"
+                    />
+                  </label>
+                </div>
+              )}
+            </div>
+
+            {/* Settings */}
+            <div className="space-y-4">
+              <div className="flex items-center space-x-3">
+                <input
+                  id="featured"
+                  type="checkbox"
+                  checked={formData.featured}
+                  onChange={(e) => setFormData(prev => ({ ...prev, featured: e.target.checked }))}
+                  className="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded"
+                />
+                <label htmlFor="featured" className="text-sm font-medium text-gray-700">
+                  Рекомендуемая новость
+                </label>
+              </div>
+
+              <div className="flex items-center space-x-3">
+                <input
+                  id="published"
+                  type="checkbox"
+                  checked={formData.published}
+                  onChange={(e) => setFormData(prev => ({ ...prev, published: e.target.checked }))}
+                  className="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded"
+                />
+                <label htmlFor="published" className="text-sm font-medium text-gray-700">
+                  Опубликовано
+                </label>
+              </div>
+
+              <div>
+                <label htmlFor="publishedAt" className="block text-sm font-medium text-gray-700 mb-2">
+                  Дата публикации
+                </label>
+                <input
+                  id="publishedAt"
+                  type="datetime-local"
+                  value={formData.publishedAt}
+                  onChange={(e) => setFormData(prev => ({ ...prev, publishedAt: e.target.value }))}
+                  className="w-full px-3 py-2 border border-gray-300 rounded-md focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+                />
+              </div>
+            </div>
+
+            {/* Submit Button */}
+            <div className="pt-6">
+              <button
+                type="submit"
+                disabled={isSubmitting}
+                className="w-full flex items-center justify-center px-4 py-2 bg-blue-600 text-white rounded-md hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed"
+              >
+                {isSubmitting ? (
+                  <div className="animate-spin rounded-full h-4 w-4 border-b-2 border-white mr-2"></div>
+                ) : (
+                  <Save className="h-4 w-4 mr-2" />
+                )}
+                {isSubmitting ? 'Сохранение...' : 'Сохранить изменения'}
+              </button>
+            </div>
+          </form>
+        </div>
+
+        {/* Preview */}
+        {showPreview && (
+          <div className="bg-white rounded-lg shadow-sm p-6">
+            <h3 className="text-lg font-semibold text-gray-900 mb-4">Предварительный просмотр</h3>
+            
+            <div className="space-y-4">
+              {imagePreview && (
+                <img
+                  src={imagePreview}
+                  alt="Preview"
+                  className="w-full h-48 object-cover rounded-md"
+                />
+              )}
+              
+              <div>
+                <h4 className="text-xl font-bold text-gray-900 mb-2">
+                  {formData.title || 'Заголовок новости'}
+                </h4>
+                
+                <div className="flex items-center space-x-2 mb-4">
+                  <span className={`px-2 py-1 rounded-full text-xs font-medium text-white ${
+                    NEWS_CATEGORIES.find(cat => cat.id === formData.category)?.color || 'bg-gray-500'
+                  }`}>
+                    {NEWS_CATEGORIES.find(cat => cat.id === formData.category)?.name}
+                  </span>
+                  {formData.featured && (
+                    <span className="px-2 py-1 rounded-full text-xs font-medium bg-yellow-100 text-yellow-800">
+                      Рекомендуемое
+                    </span>
+                  )}
+                  <span className={`px-2 py-1 rounded-full text-xs font-medium ${
+                    formData.published 
+                      ? 'bg-green-100 text-green-800' 
+                      : 'bg-gray-100 text-gray-800'
+                  }`}>
+                    {formData.published ? 'Опубликовано' : 'Черновик'}
+                  </span>
+                </div>
+                
+                <p className="text-gray-600 mb-4 italic">
+                  {formData.summary || 'Краткое описание новости'}
+                </p>
+                
+                <div 
+                  className="prose prose-sm max-w-none"
+                  dangerouslySetInnerHTML={{ 
+                    __html: formatContentForPreview(formData.content || 'Содержание новости') 
+                  }}
+                />
+              </div>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}