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/Controllers/AdminController.cs

@@ -0,0 +1,85 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using SkyArtShop.Models;
+using SkyArtShop.Services;
+
+namespace SkyArtShop.Controllers
+{
+    [Route("admin")]
+    [Authorize(Roles = "Admin")]
+    public class AdminController : Controller
+    {
+        private readonly MongoDBService _mongoService;
+        private readonly SignInManager<SkyArtShop.Data.ApplicationUser> _signInManager;
+        private readonly UserManager<SkyArtShop.Data.ApplicationUser> _userManager;
+
+        public AdminController(MongoDBService mongoService,
+            SignInManager<SkyArtShop.Data.ApplicationUser> signInManager,
+            UserManager<SkyArtShop.Data.ApplicationUser> userManager)
+        {
+            _mongoService = mongoService;
+            _signInManager = signInManager;
+            _userManager = userManager;
+        }
+
+        [HttpGet("login")]
+        [AllowAnonymous]
+        public IActionResult Login()
+        {
+            if (User.Identity?.IsAuthenticated == true)
+            {
+                return RedirectToAction("Dashboard");
+            }
+            return View();
+        }
+
+        [HttpPost("login")]
+        [AllowAnonymous]
+        public async Task<IActionResult> Login(string email, string password)
+        {
+            var user = await _userManager.FindByEmailAsync(email);
+            if (user == null)
+            {
+                ViewBag.Error = "Invalid email or password";
+                return View();
+            }
+            var result = await _signInManager.PasswordSignInAsync(user, password, true, false);
+            if (!result.Succeeded)
+            {
+                ViewBag.Error = "Invalid email or password";
+                return View();
+            }
+            return RedirectToAction("Dashboard");
+        }
+
+        [HttpGet("logout")]
+        public async Task<IActionResult> Logout()
+        {
+            await _signInManager.SignOutAsync();
+            return RedirectToAction("Login");
+        }
+
+        [HttpGet("dashboard")]
+        public async Task<IActionResult> Dashboard()
+        {
+            var products = await _mongoService.GetAllAsync<Product>("Products");
+            var projects = await _mongoService.GetAllAsync<PortfolioProject>("PortfolioProjects");
+            var blogPosts = await _mongoService.GetAllAsync<BlogPost>("BlogPosts");
+            var pages = await _mongoService.GetAllAsync<Page>("Pages");
+            var settings = (await _mongoService.GetAllAsync<SiteSettings>("SiteSettings")).FirstOrDefault();
+
+            ViewBag.ProductCount = products.Count;
+            ViewBag.ProjectCount = projects.Count;
+            ViewBag.BlogCount = blogPosts.Count;
+            ViewBag.PageCount = pages.Count;
+            ViewBag.SiteName = settings?.SiteName ?? "Sky Art Shop";
+            ViewBag.AdminEmail = User.Identity?.Name;
+
+            return View();
+        }
+
+        [HttpGet("")]
+        public IActionResult Index() => RedirectToAction("Dashboard");
+    }
+}