Fix admin route access and backend configuration

- Added /admin redirect to login page in nginx config
- Fixed backend server.js route ordering for proper admin handling
- Updated authentication middleware and routes
- Added user management routes
- Configured PostgreSQL integration
- Updated environment configuration

Sky_Art_shop/Services/MongoDBService.cs

@@ -0,0 +1,64 @@
+using MongoDB.Driver;
+using Microsoft.Extensions.Options;
+
+namespace SkyArtShop.Services
+{
+    public class MongoDBSettings
+    {
+        public string ConnectionString { get; set; } = string.Empty;
+        public string DatabaseName { get; set; } = string.Empty;
+        public Dictionary<string, string> Collections { get; set; } = new Dictionary<string, string>();
+    }
+
+    public class MongoDBService
+    {
+        private readonly IMongoDatabase _database;
+        private readonly MongoDBSettings _settings;
+
+        public MongoDBService(IOptions<MongoDBSettings> settings)
+        {
+            _settings = settings.Value;
+            var client = new MongoClient(_settings.ConnectionString);
+            _database = client.GetDatabase(_settings.DatabaseName);
+        }
+
+        public IMongoCollection<T> GetCollection<T>(string collectionName)
+        {
+            return _database.GetCollection<T>(collectionName);
+        }
+
+        // Helper methods for common operations
+        public async Task<List<T>> GetAllAsync<T>(string collectionName)
+        {
+            var collection = GetCollection<T>(collectionName);
+            return await collection.Find(_ => true).ToListAsync();
+        }
+
+        public async Task<T> GetByIdAsync<T>(string collectionName, string id)
+        {
+            var collection = GetCollection<T>(collectionName);
+            var filter = Builders<T>.Filter.Eq("_id", MongoDB.Bson.ObjectId.Parse(id));
+            return await collection.Find(filter).FirstOrDefaultAsync();
+        }
+
+        public async Task InsertAsync<T>(string collectionName, T document)
+        {
+            var collection = GetCollection<T>(collectionName);
+            await collection.InsertOneAsync(document);
+        }
+
+        public async Task UpdateAsync<T>(string collectionName, string id, T document)
+        {
+            var collection = GetCollection<T>(collectionName);
+            var filter = Builders<T>.Filter.Eq("_id", MongoDB.Bson.ObjectId.Parse(id));
+            await collection.ReplaceOneAsync(filter, document);
+        }
+
+        public async Task DeleteAsync<T>(string collectionName, string id)
+        {
+            var collection = GetCollection<T>(collectionName);
+            var filter = Builders<T>.Filter.Eq("_id", MongoDB.Bson.ObjectId.Parse(id));
+            await collection.DeleteOneAsync(filter);
+        }
+    }
+}

Sky_Art_shop/Services/SlugService.cs

@@ -0,0 +1,33 @@
+using System.Text.RegularExpressions;
+
+namespace SkyArtShop.Services
+{
+    public class SlugService
+    {
+        public string GenerateSlug(string text)
+        {
+            if (string.IsNullOrWhiteSpace(text))
+                return string.Empty;
+
+            // Convert to lowercase
+            var slug = text.ToLowerInvariant();
+
+            // Replace spaces with hyphens
+            slug = slug.Replace(" ", "-");
+
+            // Replace & with "and"
+            slug = slug.Replace("&", "and");
+
+            // Remove invalid characters
+            slug = Regex.Replace(slug, @"[^a-z0-9\-]", "");
+
+            // Replace multiple hyphens with single hyphen
+            slug = Regex.Replace(slug, @"-+", "-");
+
+            // Trim hyphens from start and end
+            slug = slug.Trim('-');
+
+            return slug;
+        }
+    }
+}