Add Admin roles

src/Managing.Application/Shared/AdminConfigurationService.cs

@@ -0,0 +1,55 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+
+namespace Managing.Application.Shared;
+
+public interface IAdminConfigurationService
+{
+    bool IsUserAdmin(string userName);
+    List<string> GetAdminUserNames();
+}
+
+public class AdminConfigurationService : IAdminConfigurationService
+{
+    private readonly IConfiguration _configuration;
+    private readonly ILogger<AdminConfigurationService> _logger;
+
+    public AdminConfigurationService(IConfiguration configuration, ILogger<AdminConfigurationService> logger)
+    {
+        _configuration = configuration;
+        _logger = logger;
+    }
+
+    public bool IsUserAdmin(string userName)
+    {
+        if (string.IsNullOrEmpty(userName))
+        {
+            return false;
+        }
+
+        var adminUserNames = GetAdminUserNames();
+        var isAdmin = adminUserNames.Contains(userName, StringComparer.OrdinalIgnoreCase);
+        
+        if (isAdmin)
+        {
+            _logger.LogInformation("User {UserName} has admin privileges", userName);
+        }
+        
+        return isAdmin;
+    }
+
+    public List<string> GetAdminUserNames()
+    {
+        var adminUsers = _configuration["AdminUsers"];
+        if (string.IsNullOrEmpty(adminUsers))
+        {
+            _logger.LogDebug("No admin users configured. Set AdminUsers environment variable.");
+            return new List<string>();
+        }
+
+        return adminUsers.Split(';', StringSplitOptions.RemoveEmptyEntries)
+                       .Select(u => u.Trim())
+                       .Where(u => !string.IsNullOrEmpty(u))
+                       .ToList();
+    }
+}