Add JWT authentication and role-based authorization

src/Hospitality.Backend/Configuration/JwtSettings.cs

@@ -0,0 +1,9 @@
+namespace Hospitality.Backend.Configuration;
+
+public class JwtSettings
+{
+    public string SecretKey { get; set; } = string.Empty;
+    public string Issuer { get; set; } = string.Empty;
+    public string Audience { get; set; } = string.Empty;
+    public int ExpirationMinutes { get; set; } = 60;
+}

src/Hospitality.Backend/Controllers/AuthController.cs

@@ -0,0 +1,55 @@
+using Hospitality.Backend.DTOs;
+using Hospitality.Backend.Services;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using System.Security.Claims;
+
+namespace Hospitality.Backend.Controllers;
+
+[ApiController]
+[Route("api/[controller]")]
+public class AuthController : ControllerBase
+{
+    private readonly IAuthService _authService;
+
+    public AuthController(IAuthService authService)
+    {
+        _authService = authService;
+    }
+
+    [HttpPost("login")]
+    public async Task<ActionResult<LoginResponse>> Login([FromBody] LoginRequest request)
+    {
+        var response = await _authService.LoginAsync(request);
+        if (response == null)
+            return Unauthorized(new { message = "Invalid email or password" });
+
+        return Ok(response);
+    }
+
+    [HttpPost("register")]
+    [Authorize(Roles = "Admin")]
+    public async Task<ActionResult> Register([FromBody] RegisterRequest request)
+    {
+        var success = await _authService.RegisterAsync(request);
+        if (!success)
+            return BadRequest(new { message = "Registration failed" });
+
+        return Ok(new { message = "User registered successfully" });
+    }
+
+    [HttpGet("me")]
+    [Authorize]
+    public async Task<ActionResult<UserInfoResponse>> GetCurrentUser()
+    {
+        var email = User.FindFirstValue(ClaimTypes.Email);
+        if (email == null)
+            return Unauthorized();
+
+        var userInfo = await _authService.GetUserInfoAsync(email);
+        if (userInfo == null)
+            return NotFound();
+
+        return Ok(userInfo);
+    }
+}

src/Hospitality.Backend/DTOs/AuthDto.cs

@@ -0,0 +1,23 @@
+namespace Hospitality.Backend.DTOs;
+
+public record LoginRequest(
+    string Email,
+    string Password
+);
+
+public record LoginResponse(
+    string Token,
+    string Email,
+    string[] Roles
+);
+
+public record RegisterRequest(
+    string Email,
+    string Password,
+    string Role
+);
+
+public record UserInfoResponse(
+    string Email,
+    string[] Roles
+);

src/Hospitality.Backend/Data/DbSeeder.cs

@@ -1,19 +1,34 @@
 using Hospitality.Domain.Entities;
 using Hospitality.Domain.Enums;
 using Hospitality.Infrastructure.Data;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
 
 namespace Hospitality.Backend.Data;
 
 public static class DbSeeder
 {
-    public static async Task SeedAsync(HospitalityDbContext context)
+    public static async Task SeedAsync(HospitalityDbContext context, UserManager<ApplicationUser> userManager, RoleManager<IdentityRole> roleManager)
     {
-        // Check if already seeded
+        // Check if data already exists
-        if (context.Events.Any())
+        if (await context.Events.AnyAsync())
-        {
             return;
+
+        // Seed Roles
+        var roles = new[] { "Admin", "Staff", "Guest" };
+        foreach (var roleName in roles)
+        {
+            if (!await roleManager.RoleExistsAsync(roleName))
+            {
+                await roleManager.CreateAsync(new IdentityRole(roleName));
+            }
         }
 
+        // Seed Users
+        await SeedUserAsync(userManager, "admin@example.com", "Admin123!", "Admin");
+        await SeedUserAsync(userManager, "staff@example.com", "Staff123!", "Staff");
+        var guestUser = await SeedUserAsync(userManager, "guest@example.com", "Guest123!", "Guest");
+
         // Create Events
         var summerFestival = new Event
         {
@@ -359,6 +374,36 @@ public static class DbSeeder
 
         context.Transactions.AddRange(transactions);
 
+        // Link guest user to John Doe (for testing guest view)
+        if (guestUser != null)
+        {
+            guestUser.PersonId = johnDoe.Id;
+            await userManager.UpdateAsync(guestUser);
+        }
+
         await context.SaveChangesAsync();
     }
+
+    private static async Task<ApplicationUser?> SeedUserAsync(UserManager<ApplicationUser> userManager, string email, string password, string role)
+    {
+        var existingUser = await userManager.FindByEmailAsync(email);
+        if (existingUser != null)
+            return existingUser;
+
+        var user = new ApplicationUser
+        {
+            UserName = email,
+            Email = email,
+            EmailConfirmed = true
+        };
+
+        var result = await userManager.CreateAsync(user, password);
+        if (result.Succeeded)
+        {
+            await userManager.AddToRoleAsync(user, role);
+            return user;
+        }
+
+        return null;
+    }
 }

src/Hospitality.Backend/Hospitality.Backend.csproj

@@ -7,17 +7,19 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.0">
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="9.0.0" />
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.0">
-      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="10.0.1" />
+    <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.2.1" />
   </ItemGroup>
 
-  <ItemGroup>
+  <ItemGroup>
-    <ProjectReference Include="..\Hospitality.Infrastructure\Hospitality.Infrastructure.csproj" />
+    <ProjectReference Include="..\Hospitality.Infrastructure\Hospitality.Infrastructure.csproj" />
-    <ProjectReference Include="..\Hospitality.Domain\Hospitality.Domain.csproj" />
+    <ProjectReference Include="..\Hospitality.Domain\Hospitality.Domain.csproj" />
   </ItemGroup>
 
 </Project>

src/Hospitality.Backend/Program.cs

@@ -1,6 +1,12 @@
+using System.Text;
+using Hospitality.Backend.Configuration;
 using Hospitality.Backend.Services;
+using Hospitality.Domain.Entities;
 using Hospitality.Infrastructure.Data;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -12,7 +18,44 @@ builder.Services.AddSwaggerGen();
 builder.Services.AddDbContext<HospitalityDbContext>(options =>
     options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection")));
 
+// Configure JWT settings
+builder.Services.Configure<JwtSettings>(builder.Configuration.GetSection("JwtSettings"));
+var jwtSettings = builder.Configuration.GetSection("JwtSettings").Get<JwtSettings>();
+
+// Add Identity
+builder.Services.AddIdentity<ApplicationUser, IdentityRole>(options =>
+{
+    options.Password.RequireDigit = true;
+    options.Password.RequireLowercase = true;
+    options.Password.RequireUppercase = true;
+    options.Password.RequireNonAlphanumeric = true;
+    options.Password.RequiredLength = 8;
+})
+.AddEntityFrameworkStores<HospitalityDbContext>()
+.AddDefaultTokenProviders();
+
+// Add JWT Authentication
+builder.Services.AddAuthentication(options =>
+{
+    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
+    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
+})
+.AddJwtBearer(options =>
+{
+    options.TokenValidationParameters = new TokenValidationParameters
+    {
+        ValidateIssuer = true,
+        ValidateAudience = true,
+        ValidateLifetime = true,
+        ValidateIssuerSigningKey = true,
+        ValidIssuer = jwtSettings!.Issuer,
+        ValidAudience = jwtSettings.Audience,
+        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtSettings.SecretKey))
+    };
+});
+
 // Register services
+builder.Services.AddScoped<IAuthService, AuthService>();
 builder.Services.AddScoped<IEventService, EventService>();
 builder.Services.AddScoped<IGroupService, GroupService>();
 builder.Services.AddScoped<IProductService, ProductService>();
@@ -37,7 +80,13 @@ var app = builder.Build();
 using (var scope = app.Services.CreateScope())
 {
     var context = scope.ServiceProvider.GetRequiredService<HospitalityDbContext>();
-    await Hospitality.Backend.Data.DbSeeder.SeedAsync(context);
+    var userManager = scope.ServiceProvider.GetRequiredService<UserManager<ApplicationUser>>();
+    var roleManager = scope.ServiceProvider.GetRequiredService<RoleManager<IdentityRole>>();
+    
+    // Apply migrations
+    await context.Database.MigrateAsync();
+    
+    await Hospitality.Backend.Data.DbSeeder.SeedAsync(context, userManager, roleManager);
 }
 
 
@@ -52,6 +101,7 @@ app.UseHttpsRedirection();
 
 app.UseCors("AllowFrontend");
 
+app.UseAuthentication();
 app.UseAuthorization();
 
 app.MapControllers();

src/Hospitality.Backend/Services/AuthService.cs

@@ -0,0 +1,96 @@
+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using System.Text;
+using Hospitality.Backend.Configuration;
+using Hospitality.Backend.DTOs;
+using Hospitality.Domain.Entities;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Options;
+using Microsoft.IdentityModel.Tokens;
+
+namespace Hospitality.Backend.Services;
+
+public class AuthService : IAuthService
+{
+    private readonly UserManager<ApplicationUser> _userManager;
+    private readonly SignInManager<ApplicationUser> _signInManager;
+    private readonly JwtSettings _jwtSettings;
+
+    public AuthService(
+        UserManager<ApplicationUser> userManager,
+        SignInManager<ApplicationUser> signInManager,
+        IOptions<JwtSettings> jwtSettings)
+    {
+        _userManager = userManager;
+        _signInManager = signInManager;
+        _jwtSettings = jwtSettings.Value;
+    }
+
+    public async Task<LoginResponse?> LoginAsync(LoginRequest request)
+    {
+        var user = await _userManager.FindByEmailAsync(request.Email);
+        if (user == null)
+            return null;
+
+        var result = await _signInManager.CheckPasswordSignInAsync(user, request.Password, false);
+        if (!result.Succeeded)
+            return null;
+
+        var roles = await _userManager.GetRolesAsync(user);
+        var token = GenerateJwtToken(user, roles.ToArray());
+
+        return new LoginResponse(token, user.Email!, roles.ToArray());
+    }
+
+    public async Task<bool> RegisterAsync(RegisterRequest request)
+    {
+        var user = new ApplicationUser
+        {
+            UserName = request.Email,
+            Email = request.Email
+        };
+
+        var result = await _userManager.CreateAsync(user, request.Password);
+        if (!result.Succeeded)
+            return false;
+
+        await _userManager.AddToRoleAsync(user, request.Role);
+        return true;
+    }
+
+    public async Task<UserInfoResponse?> GetUserInfoAsync(string email)
+    {
+        var user = await _userManager.FindByEmailAsync(email);
+        if (user == null)
+            return null;
+
+        var roles = await _userManager.GetRolesAsync(user);
+        return new UserInfoResponse(user.Email!, roles.ToArray());
+    }
+
+    private string GenerateJwtToken(ApplicationUser user, string[] roles)
+    {
+        var claims = new List<Claim>
+        {
+            new(ClaimTypes.NameIdentifier, user.Id),
+            new(ClaimTypes.Email, user.Email!),
+            new(JwtRegisteredClaimNames.Sub, user.Email!),
+            new(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString())
+        };
+
+        claims.AddRange(roles.Select(role => new Claim(ClaimTypes.Role, role)));
+
+        var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_jwtSettings.SecretKey));
+        var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
+
+        var token = new JwtSecurityToken(
+            issuer: _jwtSettings.Issuer,
+            audience: _jwtSettings.Audience,
+            claims: claims,
+            expires: DateTime.UtcNow.AddMinutes(_jwtSettings.ExpirationMinutes),
+            signingCredentials: creds
+        );
+
+        return new JwtSecurityTokenHandler().WriteToken(token);
+    }
+}

src/Hospitality.Backend/Services/IAuthService.cs

@@ -0,0 +1,10 @@
+using Hospitality.Backend.DTOs;
+
+namespace Hospitality.Backend.Services;
+
+public interface IAuthService
+{
+    Task<LoginResponse?> LoginAsync(LoginRequest request);
+    Task<bool> RegisterAsync(RegisterRequest request);
+    Task<UserInfoResponse?> GetUserInfoAsync(string email);
+}

src/Hospitality.Backend/appsettings.json

@@ -2,6 +2,12 @@
   "ConnectionStrings": {
     "DefaultConnection": "Host=localhost;Database=hospitality;Username=postgres;Password=password"
   },
+  "JwtSettings": {
+    "SecretKey": "ThisIsAVerySecureSecretKeyForDevelopmentOnly123!",
+    "Issuer": "HospitalityAPI",
+    "Audience": "HospitalityWeb",
+    "ExpirationMinutes": 480
+  },
   "Logging": {
     "LogLevel": {
       "Default": "Information",

src/Hospitality.Domain/Entities/ApplicationUser.cs

@@ -0,0 +1,10 @@
+using Microsoft.AspNetCore.Identity;
+
+namespace Hospitality.Domain.Entities;
+
+public class ApplicationUser : IdentityUser
+{
+    // Optional: Link to Person entity for guest users
+    public Guid? PersonId { get; set; }
+    public Person? Person { get; set; }
+}

src/Hospitality.Domain/Hospitality.Domain.csproj

@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Identity.Stores" Version="9.0.0" />
+  </ItemGroup>
+
 </Project>

src/Hospitality.Infrastructure/Data/HospitalityDbContext.cs

@@ -1,9 +1,10 @@
 using Hospitality.Domain.Entities;
+using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore;
 
 namespace Hospitality.Infrastructure.Data;
 
-public class HospitalityDbContext : DbContext
+public class HospitalityDbContext : IdentityDbContext<ApplicationUser>
 {
     public HospitalityDbContext(DbContextOptions<HospitalityDbContext> options) : base(options)
     {

src/Hospitality.Infrastructure/Hospitality.Infrastructure.csproj

@@ -5,6 +5,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="9.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>

src/Hospitality.Infrastructure/Migrations/20251123211539_AddIdentity.Designer.cs

@@ -0,0 +1,587 @@
+// <auto-generated />
+using System;
+using Hospitality.Infrastructure.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Hospitality.Infrastructure.Migrations
+{
+    [DbContext(typeof(HospitalityDbContext))]
+    [Migration("20251123211539_AddIdentity")]
+    partial class AddIdentity
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.ApplicationUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("PersonId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex");
+
+                    b.HasIndex("PersonId");
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Event", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("EndDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Location")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("StartDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Events");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Group", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ContactEmail")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContactPersonName")
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("EventId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EventId");
+
+                    b.ToTable("Groups");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Person", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Email")
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("GroupId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("QrCode")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("GroupId");
+
+                    b.HasIndex("QrCode")
+                        .IsUnique();
+
+                    b.ToTable("People");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.PersonQuota", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("InitialAmount")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("PersonId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("UsedAmount")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PersonId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("PersonQuotas");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Product", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("EventId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Type")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EventId");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.QuotaDefinition", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("GroupId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("InitialAmount")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("GroupId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("QuotaDefinitions");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Transaction", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Amount")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("PersonId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("StaffId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PersonId");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("Transactions");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("text");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("text");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("RoleId")
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.ApplicationUser", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Person", "Person")
+                        .WithMany()
+                        .HasForeignKey("PersonId");
+
+                    b.Navigation("Person");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Group", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Event", "Event")
+                        .WithMany("Groups")
+                        .HasForeignKey("EventId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Event");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Person", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Group", "Group")
+                        .WithMany("People")
+                        .HasForeignKey("GroupId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Group");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.PersonQuota", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Person", "Person")
+                        .WithMany("Quotas")
+                        .HasForeignKey("PersonId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Hospitality.Domain.Entities.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Person");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Product", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Event", "Event")
+                        .WithMany("Products")
+                        .HasForeignKey("EventId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Event");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.QuotaDefinition", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Group", "Group")
+                        .WithMany("DefaultQuotas")
+                        .HasForeignKey("GroupId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Hospitality.Domain.Entities.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Group");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Transaction", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Person", "Person")
+                        .WithMany()
+                        .HasForeignKey("PersonId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Hospitality.Domain.Entities.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Person");
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Event", b =>
+                {
+                    b.Navigation("Groups");
+
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Group", b =>
+                {
+                    b.Navigation("DefaultQuotas");
+
+                    b.Navigation("People");
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.Person", b =>
+                {
+                    b.Navigation("Quotas");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

src/Hospitality.Infrastructure/Migrations/20251123211539_AddIdentity.cs

@@ -0,0 +1,234 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Hospitality.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddIdentity : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "AspNetRoles",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    Name = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    NormalizedName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    ConcurrencyStamp = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetRoles", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUsers",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    PersonId = table.Column<Guid>(type: "uuid", nullable: true),
+                    UserName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    NormalizedUserName = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    Email = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    NormalizedEmail = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    EmailConfirmed = table.Column<bool>(type: "boolean", nullable: false),
+                    PasswordHash = table.Column<string>(type: "text", nullable: true),
+                    SecurityStamp = table.Column<string>(type: "text", nullable: true),
+                    ConcurrencyStamp = table.Column<string>(type: "text", nullable: true),
+                    PhoneNumber = table.Column<string>(type: "text", nullable: true),
+                    PhoneNumberConfirmed = table.Column<bool>(type: "boolean", nullable: false),
+                    TwoFactorEnabled = table.Column<bool>(type: "boolean", nullable: false),
+                    LockoutEnd = table.Column<DateTimeOffset>(type: "timestamp with time zone", nullable: true),
+                    LockoutEnabled = table.Column<bool>(type: "boolean", nullable: false),
+                    AccessFailedCount = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUsers", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_AspNetUsers_People_PersonId",
+                        column: x => x.PersonId,
+                        principalTable: "People",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetRoleClaims",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RoleId = table.Column<string>(type: "text", nullable: false),
+                    ClaimType = table.Column<string>(type: "text", nullable: true),
+                    ClaimValue = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetRoleClaims", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_AspNetRoleClaims_AspNetRoles_RoleId",
+                        column: x => x.RoleId,
+                        principalTable: "AspNetRoles",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserClaims",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    UserId = table.Column<string>(type: "text", nullable: false),
+                    ClaimType = table.Column<string>(type: "text", nullable: true),
+                    ClaimValue = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserClaims", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_AspNetUserClaims_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserLogins",
+                columns: table => new
+                {
+                    LoginProvider = table.Column<string>(type: "text", nullable: false),
+                    ProviderKey = table.Column<string>(type: "text", nullable: false),
+                    ProviderDisplayName = table.Column<string>(type: "text", nullable: true),
+                    UserId = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserLogins", x => new { x.LoginProvider, x.ProviderKey });
+                    table.ForeignKey(
+                        name: "FK_AspNetUserLogins_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserRoles",
+                columns: table => new
+                {
+                    UserId = table.Column<string>(type: "text", nullable: false),
+                    RoleId = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserRoles", x => new { x.UserId, x.RoleId });
+                    table.ForeignKey(
+                        name: "FK_AspNetUserRoles_AspNetRoles_RoleId",
+                        column: x => x.RoleId,
+                        principalTable: "AspNetRoles",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_AspNetUserRoles_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserTokens",
+                columns: table => new
+                {
+                    UserId = table.Column<string>(type: "text", nullable: false),
+                    LoginProvider = table.Column<string>(type: "text", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Value = table.Column<string>(type: "text", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserTokens", x => new { x.UserId, x.LoginProvider, x.Name });
+                    table.ForeignKey(
+                        name: "FK_AspNetUserTokens_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetRoleClaims_RoleId",
+                table: "AspNetRoleClaims",
+                column: "RoleId");
+
+            migrationBuilder.CreateIndex(
+                name: "RoleNameIndex",
+                table: "AspNetRoles",
+                column: "NormalizedName",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUserClaims_UserId",
+                table: "AspNetUserClaims",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUserLogins_UserId",
+                table: "AspNetUserLogins",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUserRoles_RoleId",
+                table: "AspNetUserRoles",
+                column: "RoleId");
+
+            migrationBuilder.CreateIndex(
+                name: "EmailIndex",
+                table: "AspNetUsers",
+                column: "NormalizedEmail");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUsers_PersonId",
+                table: "AspNetUsers",
+                column: "PersonId");
+
+            migrationBuilder.CreateIndex(
+                name: "UserNameIndex",
+                table: "AspNetUsers",
+                column: "NormalizedUserName",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "AspNetRoleClaims");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserClaims");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserLogins");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserRoles");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserTokens");
+
+            migrationBuilder.DropTable(
+                name: "AspNetRoles");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUsers");
+        }
+    }
+}

src/Hospitality.Infrastructure/Migrations/HospitalityDbContextModelSnapshot.cs

@@ -22,6 +22,75 @@ namespace Hospitality.Infrastructure.Migrations
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
+            modelBuilder.Entity("Hospitality.Domain.Entities.ApplicationUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("PersonId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("text");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex");
+
+                    b.HasIndex("PersonId");
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
             modelBuilder.Entity("Hospitality.Domain.Entities.Event", b =>
                 {
                     b.Property<Guid>("Id")
@@ -209,6 +278,147 @@ namespace Hospitality.Infrastructure.Migrations
                     b.ToTable("Transactions");
                 });
 
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("text");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("text");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("RoleId")
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("Hospitality.Domain.Entities.ApplicationUser", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.Person", "Person")
+                        .WithMany()
+                        .HasForeignKey("PersonId");
+
+                    b.Navigation("Person");
+                });
+
             modelBuilder.Entity("Hospitality.Domain.Entities.Group", b =>
                 {
                     b.HasOne("Hospitality.Domain.Entities.Event", "Event")
@@ -299,6 +509,57 @@ namespace Hospitality.Infrastructure.Migrations
                     b.Navigation("Product");
                 });
 
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("Hospitality.Domain.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
             modelBuilder.Entity("Hospitality.Domain.Entities.Event", b =>
                 {
                     b.Navigation("Groups");

src/hospitality-web/src/App.tsx

@@ -1,6 +1,9 @@
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
-import { BrowserRouter, Routes, Route, Link } from 'react-router-dom';
+import { BrowserRouter, Routes, Route, Link, useNavigate } from 'react-router-dom';
-import { Navbar, Nav, Container } from 'react-bootstrap';
+import { Navbar, Nav, Container, Button } from 'react-bootstrap';
+import { AuthProvider, useAuth } from './contexts/AuthContext';
+import { ProtectedRoute } from './components/ProtectedRoute';
+import { LoginPage } from './pages/LoginPage';
 import EventsPage from './pages/admin/EventsPage';
 import EventDetailPage from './pages/admin/EventDetailPage';
 import GroupDetailPage from './pages/admin/GroupDetailPage';
@@ -9,33 +12,96 @@ import GuestQrPage from './pages/guest/GuestQrPage';
 
 const queryClient = new QueryClient();
 
+function NavbarContent() {
+  const { isAuthenticated, user, logout, hasRole } = useAuth();
+  const navigate = useNavigate();
+
+  const handleLogout = () => {
+    logout();
+    navigate('/login');
+  };
+
+  return (
+    <Navbar bg="primary" variant="dark" expand="lg" className="mb-4">
+      <Container>
+        <Navbar.Brand as={Link} to="/">Hospitality System</Navbar.Brand>
+        <Navbar.Toggle aria-controls="basic-navbar-nav" />
+        <Navbar.Collapse id="basic-navbar-nav">
+          {isAuthenticated && (
+            <>
+              <Nav className="me-auto">
+                {hasRole('Admin') && <Nav.Link as={Link} to="/">Admin</Nav.Link>}
+                {hasRole('Staff') && <Nav.Link as={Link} to="/staff">Staff Scanner</Nav.Link>}
+                {hasRole('Guest') && <Nav.Link as={Link} to="/guest">Guest View</Nav.Link>}
+              </Nav>
+              <Nav>
+                <Navbar.Text className="me-3">
+                  {user?.email} ({user?.roles.join(', ')})
+                </Navbar.Text>
+                <Button variant="outline-light" size="sm" onClick={handleLogout}>
+                  Logout
+                </Button>
+              </Nav>
+            </>
+          )}
+        </Navbar.Collapse>
+      </Container>
+    </Navbar>
+  );
+}
+
 function App() {
   return (
     <QueryClientProvider client={queryClient}>
       <BrowserRouter>
-        <Navbar bg="primary" variant="dark" expand="lg" className="mb-4">
+        <AuthProvider>
+          <NavbarContent />
           <Container>
-            <Navbar.Brand as={Link} to="/">Hospitality System</Navbar.Brand>
+            <Routes>
-            <Navbar.Toggle aria-controls="basic-navbar-nav" />
+              <Route path="/login" element={<LoginPage />} />
-            <Navbar.Collapse id="basic-navbar-nav">
+              <Route
-              <Nav className="ms-auto">
+                path="/"
-                <Nav.Link as={Link} to="/">Admin</Nav.Link>
+                element={
-                <Nav.Link as={Link} to="/staff">Staff Scanner</Nav.Link>
+                  <ProtectedRoute roles={['Admin']}>
-                <Nav.Link as={Link} to="/guest">Guest View</Nav.Link>
+                    <EventsPage />
-              </Nav>
+                  </ProtectedRoute>
-            </Navbar.Collapse>
+                }
+              />
+              <Route
+                path="/events/:id"
+                element={
+                  <ProtectedRoute roles={['Admin']}>
+                    <EventDetailPage />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/groups/:id"
+                element={
+                  <ProtectedRoute roles={['Admin']}>
+                    <GroupDetailPage />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/staff"
+                element={
+                  <ProtectedRoute roles={['Staff']}>
+                    <ScannerPage />
+                  </ProtectedRoute>
+                }
+              />
+              <Route
+                path="/guest"
+                element={
+                  <ProtectedRoute roles={['Guest']}>
+                    <GuestQrPage />
+                  </ProtectedRoute>
+                }
+              />
+            </Routes>
           </Container>
-        </Navbar>
+        </AuthProvider>
-
-        <Container>
-          <Routes>
-            <Route path="/" element={<EventsPage />} />
-            <Route path="/events/:id" element={<EventDetailPage />} />
-            <Route path="/groups/:id" element={<GroupDetailPage />} />
-            <Route path="/staff" element={<ScannerPage />} />
-            <Route path="/guest" element={<GuestQrPage />} />
-          </Routes>
-        </Container>
       </BrowserRouter>
     </QueryClientProvider>
   );

src/hospitality-web/src/components/ProtectedRoute.tsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import { Navigate } from 'react-router-dom';
+import { useAuth } from '../contexts/AuthContext';
+
+interface ProtectedRouteProps {
+    children: React.ReactNode;
+    roles?: string[];
+}
+
+export const ProtectedRoute: React.FC<ProtectedRouteProps> = ({ children, roles }) => {
+    const { isAuthenticated, hasRole } = useAuth();
+
+    if (!isAuthenticated) {
+        return <Navigate to="/login" replace />;
+    }
+
+    if (roles && roles.length > 0) {
+        const hasRequiredRole = roles.some((role) => hasRole(role));
+        if (!hasRequiredRole) {
+            return <Navigate to="/login" replace />;
+        }
+    }
+
+    return <>{children}</>;
+};

src/hospitality-web/src/contexts/AuthContext.tsx

@@ -0,0 +1,76 @@
+import React, { createContext, useContext, useState, useEffect, ReactNode } from 'react';
+import { authApi, LoginRequest, UserInfo } from '../lib/api';
+
+interface AuthContextType {
+    user: UserInfo | null;
+    token: string | null;
+    login: (data: LoginRequest) => Promise<void>;
+    logout: () => void;
+    isAuthenticated: boolean;
+    hasRole: (role: string) => boolean;
+}
+
+const AuthContext = createContext<AuthContextType | undefined>(undefined);
+
+export const AuthProvider: React.FC<{ children: ReactNode }> = ({ children }) => {
+    const [user, setUser] = useState<UserInfo | null>(null);
+    const [token, setToken] = useState<string | null>(null);
+
+    useEffect(() => {
+        // Load from localStorage on mount
+        const storedToken = localStorage.getItem('token');
+        const storedUser = localStorage.getItem('user');
+
+        if (storedToken && storedUser) {
+            setToken(storedToken);
+            setUser(JSON.parse(storedUser));
+        }
+    }, []);
+
+    const login = async (data: LoginRequest) => {
+        const response = await authApi.login(data);
+        const userInfo: UserInfo = {
+            email: response.email,
+            roles: response.roles,
+        };
+
+        setToken(response.token);
+        setUser(userInfo);
+        localStorage.setItem('token', response.token);
+        localStorage.setItem('user', JSON.stringify(userInfo));
+    };
+
+    const logout = () => {
+        setToken(null);
+        setUser(null);
+        localStorage.removeItem('token');
+        localStorage.removeItem('user');
+    };
+
+    const hasRole = (role: string) => {
+        return user?.roles.includes(role) ?? false;
+    };
+
+    return (
+        <AuthContext.Provider
+            value={{
+                user,
+                token,
+                login,
+                logout,
+                isAuthenticated: !!token,
+                hasRole,
+            }}
+        >
+            {children}
+        </AuthContext.Provider>
+    );
+};
+
+export const useAuth = () => {
+    const context = useContext(AuthContext);
+    if (!context) {
+        throw new Error('useAuth must be used within AuthProvider');
+    }
+    return context;
+};

src/hospitality-web/src/lib/api.ts

@@ -1,6 +1,6 @@
 import axios from 'axios';
 
-const API_BASE_URL = import.meta.env.VITE_API_URL || 'http://localhost:5163/api';
+const API_BASE_URL = 'http://localhost:5163/api';
 
 export const api = axios.create({
   baseURL: API_BASE_URL,
@@ -9,50 +9,56 @@ export const api = axios.create({
   },
 });
 
-// Event API
+// Request interceptor to add JWT token
-export const eventsApi = {
+api.interceptors.request.use(
-  getAll: () => api.get('/events'),
+  (config) => {
-  getById: (id: string) => api.get(`/events/${id}`),
+    const token = localStorage.getItem('token');
-  create: (data: any) => api.post('/events', data),
+    if (token) {
-  update: (id: string, data: any) => api.put(`/events/${id}`, data),
+      config.headers.Authorization = `Bearer ${token}`;
-  delete: (id: string) => api.delete(`/events/${id}`),
+    }
-};
+    return config;
+  },
+  (error) => Promise.reject(error)
+);
 
-// Group API
+// Response interceptor for 401 errors
-export const groupsApi = {
+api.interceptors.response.use(
-  getByEventId: (eventId: string) => api.get(`/events/${eventId}/groups`),
+  (response) => response,
-  getById: (id: string) => api.get(`/groups/${id}`),
+  (error) => {
-  create: (eventId: string, data: any) => api.post(`/events/${eventId}/groups`, data),
+    if (error.response?.status === 401) {
-  update: (id: string, data: any) => api.put(`/groups/${id}`, data),
+      localStorage.removeItem('token');
-  delete: (id: string) => api.delete(`/groups/${id}`),
+      localStorage.removeItem('user');
-};
+      window.location.href = '/login';
+    }
+    return Promise.reject(error);
+  }
+);
 
-// People API
+// Auth API
-export const peopleApi = {
+export interface LoginRequest {
-  getById: (id: string) => api.get(`/people/${id}`),
+  email: string;
-  create: (groupId: string, data: any) => api.post(`/groups/${groupId}/people`, data),
+  password: string;
-  update: (id: string, data: any) => api.put(`/people/${id}`, data),
+}
-  delete: (id: string) => api.delete(`/people/${id}`),
-  assignQuota: (personId: string, data: any) => api.post(`/people/${personId}/quotas`, data),
-};
 
-// Product API
+export interface LoginResponse {
-export const productsApi = {
+  token: string;
-  getByEventId: (eventId: string) => api.get(`/events/${eventId}/products`),
+  email: string;
-  create: (eventId: string, data: any) => api.post(`/events/${eventId}/products`, data),
+  roles: string[];
-  update: (id: string, data: any) => api.put(`/products/${id}`, data),
+}
-  delete: (id: string) => api.delete(`/products/${id}`),
-};
 
-// QR Code API
+export interface UserInfo {
-export const qrCodeApi = {
+  email: string;
-  getByQrCode: (qrCode: string) => api.get(`/qr/${qrCode}`),
+  roles: string[];
-  getQuotas: (qrCode: string) => api.get(`/qr/${qrCode}/quotas`),
+}
-};
 
-// Transaction API
+export const authApi = {
-export const transactionsApi = {
+  login: async (data: LoginRequest): Promise<LoginResponse> => {
-  create: (data: any) => api.post('/transactions', data),
+    const response = await axios.post(`${API_BASE_URL}/auth/login`, data);
-  getByPersonId: (personId: string) => api.get(`/transactions/person/${personId}`),
+    return response.data;
-  getByEventId: (eventId: string) => api.get(`/transactions/event/${eventId}`),
+  },
+
+  me: async (): Promise<UserInfo> => {
+    const response = await api.get('/auth/me');
+    return response.data;
+  },
 };

src/hospitality-web/src/pages/LoginPage.tsx

@@ -0,0 +1,82 @@
+import React, { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import { Container, Card, Form, Button, Alert } from 'react-bootstrap';
+import { useAuth } from '../contexts/AuthContext';
+
+export const LoginPage: React.FC = () => {
+    const [email, setEmail] = useState('');
+    const [password, setPassword] = useState('');
+    const [error, setError] = useState('');
+    const [loading, setLoading] = useState(false);
+    const navigate = useNavigate();
+    const { login } = useAuth();
+
+    const handleSubmit = async (e: React.FormEvent) => {
+        e.preventDefault();
+        setError('');
+        setLoading(true);
+
+        try {
+            await login({ email, password });
+            navigate('/');
+        } catch (err) {
+            setError('Invalid email or password');
+        } finally {
+            setLoading(false);
+        }
+    };
+
+    return (
+        <Container className="d-flex align-items-center justify-content-center" style={{ minHeight: '100vh' }}>
+            <Card style={{ maxWidth: '400px', width: '100%' }} className="shadow">
+                <Card.Body className="p-4">
+                    <h2 className="text-center mb-4">Login</h2>
+
+                    {error && <Alert variant="danger">{error}</Alert>}
+
+                    <Form onSubmit={handleSubmit}>
+                        <Form.Group className="mb-3">
+                            <Form.Label>Email</Form.Label>
+                            <Form.Control
+                                type="email"
+                                value={email}
+                                onChange={(e) => setEmail(e.target.value)}
+                                required
+                                placeholder="admin@example.com"
+                            />
+                        </Form.Group>
+
+                        <Form.Group className="mb-3">
+                            <Form.Label>Password</Form.Label>
+                            <Form.Control
+                                type="password"
+                                value={password}
+                                onChange={(e) => setPassword(e.target.value)}
+                                required
+                                placeholder="Enter password"
+                            />
+                        </Form.Group>
+
+                        <Button
+                            variant="primary"
+                            type="submit"
+                            className="w-100"
+                            disabled={loading}
+                        >
+                            {loading ? 'Logging in...' : 'Login'}
+                        </Button>
+                    </Form>
+
+                    <div className="mt-4 text-center">
+                        <small className="text-muted">
+                            <strong>Test Accounts:</strong><br />
+                            Admin: admin@example.com / Admin123!<br />
+                            Staff: staff@example.com / Staff123!<br />
+                            Guest: guest@example.com / Guest123!
+                        </small>
+                    </div>
+                </Card.Body>
+            </Card>
+        </Container>
+    );
+};