From e0cbf86fc80747d9905ebc1900c97b627377bd77 Mon Sep 17 00:00:00 2001
From: ConfuzzedCat <confuzzedcat@gmail.com>
Date: Mon, 6 Apr 2026 01:39:56 +0200
Subject: [PATCH] WIP, fix wish.price. Added Wish, Wishlist, services, data
 classes

---
 Wishlist/Data/AppDataContext.cs               |  18 ++
 Wishlist/Data/Constants.cs                    |   3 +
 Wishlist/Data/Entities/CurrencyInfo.cs        |  38 ++++
 Wishlist/Data/Entities/PriceInfo.cs           |  24 +++
 Wishlist/Data/Entities/ReserveStatus.cs       |  23 +++
 Wishlist/Data/Entities/User.cs                |   1 +
 Wishlist/Data/Entities/VisibilityStatus.cs    |  31 +++
 Wishlist/Data/Entities/Wish.cs                |  35 ++++
 Wishlist/Data/Entities/Wishlist.cs            |  28 +++
 Wishlist/Data/Services/Interfaces/ICrud.cs    |  12 ++
 .../Data/Services/Interfaces/IWishService.cs  |  17 ++
 .../Services/Interfaces/IWishlistService.cs   |   9 +
 Wishlist/Data/Services/WishService.cs         | 176 ++++++++++++++++++
 Wishlist/Data/Services/WishlistService.cs     |  86 +++++++++
 Wishlist/Program.cs                           |   4 +
 Wishlist/Wishlist.csproj                      |   5 +
 16 files changed, 510 insertions(+)
 create mode 100644 Wishlist/Data/Entities/CurrencyInfo.cs
 create mode 100644 Wishlist/Data/Entities/PriceInfo.cs
 create mode 100644 Wishlist/Data/Entities/ReserveStatus.cs
 create mode 100644 Wishlist/Data/Entities/VisibilityStatus.cs
 create mode 100644 Wishlist/Data/Entities/Wish.cs
 create mode 100644 Wishlist/Data/Entities/Wishlist.cs
 create mode 100644 Wishlist/Data/Services/Interfaces/ICrud.cs
 create mode 100644 Wishlist/Data/Services/Interfaces/IWishService.cs
 create mode 100644 Wishlist/Data/Services/Interfaces/IWishlistService.cs
 create mode 100644 Wishlist/Data/Services/WishService.cs
 create mode 100644 Wishlist/Data/Services/WishlistService.cs

diff --git a/Wishlist/Data/AppDataContext.cs b/Wishlist/Data/AppDataContext.cs
index b311b90..5ce0787 100644
--- a/Wishlist/Data/AppDataContext.cs
+++ b/Wishlist/Data/AppDataContext.cs
@@ -6,8 +6,26 @@ namespace Wishlist.Data;
 
 public class AppDataContext : IdentityDbContext<User>
 {
+
+    public DbSet<Entities.Wishlist> Wishlists { get; set; }
+    public DbSet<Wish> Wishes { get; set; }
     public AppDataContext() { }
     
     public AppDataContext(DbContextOptions<AppDataContext> options) : base(options) { }
 
+    protected override void OnModelCreating(ModelBuilder builder)
+    {
+        base.OnModelCreating(builder);
+        builder.Entity<Entities.Wishlist>()
+            .HasMany(e => e.Wishes)
+            .WithOne(e => e.Wishlist)
+            .HasForeignKey(e => e.WishlistId)
+            .OnDelete(DeleteBehavior.Cascade)
+            .IsRequired();
+        
+        builder.Entity<User>()
+            .HasMany(e => e.Wishlists)
+            .WithMany(e => e.Owners)
+            .UsingEntity(j => j.ToTable("OwnerWishlists"));
+    }
 }
\ No newline at end of file
diff --git a/Wishlist/Data/Constants.cs b/Wishlist/Data/Constants.cs
index 6d98f3c..a84a5df 100644
--- a/Wishlist/Data/Constants.cs
+++ b/Wishlist/Data/Constants.cs
@@ -1,3 +1,5 @@
+using Wishlist.Data.Entities;
+
 namespace Wishlist.Data;
 
 public class Constants
@@ -7,4 +9,5 @@ public class Constants
     public const string MemberRole = "Member";
     // Static Readonly (Runtime const)
     public static readonly string[] Roles = [AdminRole,  MemberRole];
+    public static readonly CurrencyInfo DefaultCurrency = CurrencyInfo.DKK;
 }
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/CurrencyInfo.cs b/Wishlist/Data/Entities/CurrencyInfo.cs
new file mode 100644
index 0000000..5dc946f
--- /dev/null
+++ b/Wishlist/Data/Entities/CurrencyInfo.cs
@@ -0,0 +1,38 @@
+namespace Wishlist.Data.Entities;
+
+public struct CurrencyInfo
+{
+    public CurrencyInfo()
+    {
+        CurrencyCode = string.Empty;
+        CurrencyName = string.Empty;
+        Symbol = string.Empty;
+    }
+
+    // ReSharper disable InconsistentNaming
+    public static readonly CurrencyInfo DKK = new()
+    {
+        CurrencyCode = "DKK",
+        CurrencyName = "Danish Crowns",
+        Symbol = "Kr",
+    };
+    public static readonly CurrencyInfo EURO = new()
+    {
+        CurrencyCode = "EURO",
+        CurrencyName = "Euros",
+        Symbol = "€"
+    };
+    public static readonly CurrencyInfo USD = new()
+    {
+        CurrencyCode = "USD",
+        CurrencyName = "US Dollars",
+        Symbol = "$"
+    };
+    // ReSharper restore InconsistentNaming
+    
+    
+    
+    public string CurrencyCode { get; set; }
+    public string CurrencyName { get; set; }
+    public string Symbol { get; set; }
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/PriceInfo.cs b/Wishlist/Data/Entities/PriceInfo.cs
new file mode 100644
index 0000000..830eea9
--- /dev/null
+++ b/Wishlist/Data/Entities/PriceInfo.cs
@@ -0,0 +1,24 @@
+namespace Wishlist.Data.Entities;
+
+public struct PriceInfo
+{
+    public double Price { get; set; }
+    public CurrencyInfo CurrencyInfo { get; set; }
+
+    public PriceInfo()
+    {
+        Price = 0;
+        CurrencyInfo = new CurrencyInfo();
+    }
+
+    public PriceInfo(double price)
+    {
+        Price = price;
+        CurrencyInfo = new CurrencyInfo();
+    }
+    public PriceInfo(double price, CurrencyInfo currencyInfo)
+    {
+        Price = price;
+        CurrencyInfo = currencyInfo;
+    }
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/ReserveStatus.cs b/Wishlist/Data/Entities/ReserveStatus.cs
new file mode 100644
index 0000000..ac8ec64
--- /dev/null
+++ b/Wishlist/Data/Entities/ReserveStatus.cs
@@ -0,0 +1,23 @@
+namespace Wishlist.Data.Entities;
+
+public struct ReserveStatus
+{
+    public User? ReserveUser { get; set; }
+    
+    public static readonly ReserveStatus NotReserve = new ();
+
+    public ReserveStatus()
+    {
+        ReserveUser = null;
+    }
+
+    public ReserveStatus(User? reserveUser)
+    {
+        ReserveUser = reserveUser;
+    }
+    
+    public bool IsReserved()
+    {
+        return ReserveUser is not null;
+    }
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/User.cs b/Wishlist/Data/Entities/User.cs
index 255606b..9d3df0c 100644
--- a/Wishlist/Data/Entities/User.cs
+++ b/Wishlist/Data/Entities/User.cs
@@ -4,5 +4,6 @@ namespace Wishlist.Data.Entities;
 
 public class User : IdentityUser
 {
+    public List<Wishlist> Wishlists { get; set; }
     
 }
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/VisibilityStatus.cs b/Wishlist/Data/Entities/VisibilityStatus.cs
new file mode 100644
index 0000000..c36c251
--- /dev/null
+++ b/Wishlist/Data/Entities/VisibilityStatus.cs
@@ -0,0 +1,31 @@
+namespace Wishlist.Data.Entities;
+
+public struct VisibilityStatus
+{
+    public VisibilityStatus() { }
+
+    public List<User> VisibleTo { get; set; } = [];
+    public bool Published { get; set; }
+    public bool Public { get; set; }
+
+    public bool IsVisibleForUSer(User user)
+    {
+        return Public || Published && VisibleTo.Contains(user);
+    }
+    
+    public void AddUser(User user)
+    {
+        VisibleTo.Add(user);
+    }
+
+    public void RemoveUser(User user)
+    {
+        VisibleTo.Remove(user);
+    }
+
+    public bool IsEmpty()
+    {
+        return VisibleTo.Count == 0;
+    }
+    
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/Wish.cs b/Wishlist/Data/Entities/Wish.cs
new file mode 100644
index 0000000..213503c
--- /dev/null
+++ b/Wishlist/Data/Entities/Wish.cs
@@ -0,0 +1,35 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Wishlist.Data.Entities;
+
+public class Wish
+{
+    public Guid Id { get; set; }
+    [MaxLength(50)]
+    public string Name { get; set; }
+    [MaxLength(2000)]
+    public string Description { get; set; }
+    public DateTime Created { get; set; }
+    public DateTime LastModified { get; set; }
+    public bool IsVisible { get; set; }
+    public ReserveStatus ReserveStatus { get; set; }
+    public PriceInfo Price { get; set; }
+    public Uri ImageUrl { get; set; }
+    public Uri StoreLink { get; set; }
+    public Guid WishlistId { get; set; }
+    public Wishlist Wishlist { get; set; } = null!;
+
+    public Wish()
+    {
+        Id = Guid.NewGuid();
+        Created = DateTime.UtcNow;
+        LastModified = DateTime.UtcNow;
+        IsVisible = false;
+        ReserveStatus = ReserveStatus.NotReserve;
+        Price = new(0, Constants.DefaultCurrency);
+        ImageUrl = new Uri(string.Empty);
+        StoreLink = new Uri(string.Empty);
+        Description = string.Empty;
+        Name = string.Empty;
+    }
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Entities/Wishlist.cs b/Wishlist/Data/Entities/Wishlist.cs
new file mode 100644
index 0000000..26d196d
--- /dev/null
+++ b/Wishlist/Data/Entities/Wishlist.cs
@@ -0,0 +1,28 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Wishlist.Data.Entities;
+
+public class Wishlist
+{
+    public Guid Id { get; set; }
+    [MaxLength(50)]
+    public string Title { get; set; }
+    [MaxLength(2000)]
+    public string Description { get; set; }
+    public List<Wish> Wishes { get; set; }
+    public List<User> Owners { get; set; }
+    public VisibilityStatus VisibilityStatus { get; set; }
+    public DateTime Created { get; set; }
+    public DateTime LastModified { get; set; }
+    
+    public Wishlist()
+    {        
+        Id = Guid.NewGuid();
+        Title = string.Empty;
+        Description = string.Empty;
+        Wishes = [];
+        VisibilityStatus = new VisibilityStatus();
+        Created = DateTime.UtcNow;
+        LastModified = DateTime.UtcNow;
+    }
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Services/Interfaces/ICrud.cs b/Wishlist/Data/Services/Interfaces/ICrud.cs
new file mode 100644
index 0000000..f3af27c
--- /dev/null
+++ b/Wishlist/Data/Services/Interfaces/ICrud.cs
@@ -0,0 +1,12 @@
+using CSharpFunctionalExtensions;
+
+namespace Wishlist.Data.Services.Interfaces;
+
+
+public interface ICrud<in TKey, TEntity>
+{
+    Task<Result<TEntity>> Create(TEntity entity);
+    Task<Maybe<TEntity>> Read(TKey entityId);
+    Task<Result<TEntity>> Update(TEntity entity);
+    Task<Result<TEntity>> Delete(TKey entityId);
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Services/Interfaces/IWishService.cs b/Wishlist/Data/Services/Interfaces/IWishService.cs
new file mode 100644
index 0000000..7c3acf9
--- /dev/null
+++ b/Wishlist/Data/Services/Interfaces/IWishService.cs
@@ -0,0 +1,17 @@
+using CSharpFunctionalExtensions;
+using Wishlist.Data.Entities;
+
+namespace Wishlist.Data.Services.Interfaces;
+
+public interface IWishService : ICrud<Guid, Wish>
+{
+    Task<Result<List<Wish>>> GetAllWishes(Guid listId);
+    Task<Result<Wish>> UpdateReservedStatus(Guid wishId, User? reservedBy);
+    Task<Result<Wish>> UpdatePriceInfo(Guid wishId, PriceInfo priceInfo);
+    Task<Result<Wish>> UpdateImage(Guid wishId, Uri  imageUri);
+    Task<Result<Wish>> UpdateStore(Guid wishId, Uri  storeUri);
+    Task<Result<Wish>> UpdateName(Guid wishId, string name);
+    Task<Result<Wish>> UpdateDescription(Guid wishId, string description);
+    Task<Result<Wish>> UpdateVisibility(Guid wishId,  bool isVisible);
+    Task<Result<Wish>> UpdatePrice(Guid wishId, double price);    
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Services/Interfaces/IWishlistService.cs b/Wishlist/Data/Services/Interfaces/IWishlistService.cs
new file mode 100644
index 0000000..1b2d8e3
--- /dev/null
+++ b/Wishlist/Data/Services/Interfaces/IWishlistService.cs
@@ -0,0 +1,9 @@
+using CSharpFunctionalExtensions;
+using Wishlist.Data.Entities;
+
+namespace Wishlist.Data.Services.Interfaces;
+
+public interface IWishlistService : ICrud<Guid, Entities.Wishlist>
+{
+    Task<Result<Wish>> AddWish(Guid id, Wish wish);
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Services/WishService.cs b/Wishlist/Data/Services/WishService.cs
new file mode 100644
index 0000000..3f2dd02
--- /dev/null
+++ b/Wishlist/Data/Services/WishService.cs
@@ -0,0 +1,176 @@
+using CSharpFunctionalExtensions;
+using Wishlist.Data.Entities;
+using Wishlist.Data.Services.Interfaces;
+
+namespace Wishlist.Data.Services;
+
+public class WishService : IWishService
+{
+    private readonly AppDataContext _context;
+    private readonly ILogger<WishService> _logger;
+    private readonly IWishlistService _wishlistService;
+
+    public WishService(AppDataContext context, ILogger<WishService> logger, IWishlistService wishlistService)
+    {
+        _context = context;
+        _logger = logger;
+        _wishlistService = wishlistService;
+    }
+
+    public async Task<Result<Wish>> Create(Wish entity)
+    {
+        try
+        {
+            _logger.LogInformation($"Creating Wish {entity.Id}");
+            entity.Created = DateTime.UtcNow;
+            entity.LastModified = entity.Created;
+            var createdEntity = await _context.Wishes.AddAsync(entity);
+            await _context.SaveChangesAsync();
+            return createdEntity.Entity;
+        }
+        catch (Exception e)
+        {
+            _logger.LogError("An error occurred while creating the Wish. {Entity} - {Error}", entity, e.Message);
+            return Result.Failure<Wish>($"An error occurred while creating the Wish. {e}");
+        }
+    }
+
+    public async Task<Maybe<Wish>> Read(Guid entityId)
+    {
+        var entity = await _context.Wishes.FindAsync(entityId);
+        return entity;
+    }
+
+    public async Task<Result<Wish>> Update(Wish entity)
+    {
+        var oldEntity = await Read(entity.Id);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        entity.LastModified =  DateTime.UtcNow;
+        _context.Wishes.Update(entity);
+        await _context.SaveChangesAsync();
+        return Result.Success(entity);
+    }
+
+    public async Task<Result<Wish>> Delete(Guid entityId)
+    {
+        var entity = await Read(entityId);
+        if (entity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var deletedEntity = _context.Wishes.Remove(entity.Value);
+        await _context.SaveChangesAsync();
+        return Result.Success(deletedEntity.Entity);
+    }
+
+    public async Task<Result<List<Wish>>> GetAllWishes(Guid listId)
+    {
+        var listMaybe = await _wishlistService.Read(listId);
+        if (listMaybe.HasNoValue)
+        {
+            return Result.Failure<List<Wish>>("The given list was not found.");
+        }
+        return listMaybe.Value.Wishes;
+    }
+
+    public async Task<Result<Wish>> UpdateReservedStatus(Guid wishId, User? reservedBy)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.ReserveStatus = new ReserveStatus(reservedBy);
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdatePriceInfo(Guid wishId, PriceInfo priceInfo)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.Price = priceInfo;
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdateImage(Guid wishId, Uri imageUri)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.ImageUrl = imageUri;
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdateStore(Guid wishId, Uri storeUri)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.StoreLink = storeUri;
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdateName(Guid wishId, string name)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.Name = name;
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdateDescription(Guid wishId, string description)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.Description = description;
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdateVisibility(Guid wishId, bool isVisible)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        wish.IsVisible = isVisible;
+        return await Update(wish);
+    }
+
+    public async Task<Result<Wish>> UpdatePrice(Guid wishId, double price)
+    {
+        var oldEntity = await Read(wishId);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Wish>("The given entity was not found.");
+        }
+        var wish = oldEntity.Value;
+        var oldPrice = wish.Price;
+        oldPrice.Price = price;
+        wish.Price = oldPrice;
+        return await Update(wish);
+    }
+}
\ No newline at end of file
diff --git a/Wishlist/Data/Services/WishlistService.cs b/Wishlist/Data/Services/WishlistService.cs
new file mode 100644
index 0000000..a6bfc9c
--- /dev/null
+++ b/Wishlist/Data/Services/WishlistService.cs
@@ -0,0 +1,86 @@
+using CSharpFunctionalExtensions;
+using Wishlist.Data.Entities;
+using Wishlist.Data.Services.Interfaces;
+
+namespace Wishlist.Data.Services;
+
+public class WishlistService : IWishlistService
+{
+    private readonly AppDataContext _context;
+    private readonly ILogger<WishlistService> _logger;
+
+    public WishlistService(AppDataContext context, ILogger<WishlistService> logger)
+    {
+        _context = context;
+        _logger = logger;
+    }
+
+    public async Task<Result<Entities.Wishlist>> Create(Entities.Wishlist entity)
+    {
+        try
+        {
+            _logger.LogInformation($"Creating Wishlist {entity.Id}");
+            entity.Created = DateTime.UtcNow;
+            entity.LastModified = entity.Created;
+            var createdEntity = await _context.Wishlists.AddAsync(entity);
+            await _context.SaveChangesAsync();
+            return createdEntity.Entity;
+        }
+        catch (Exception e)
+        {
+            _logger.LogError("An error occurred while creating the Wishlist. {Entity} - {Error}", entity, e.Message);
+            return Result.Failure<Entities.Wishlist>($"An error occurred while creating the Wishlist. {e}");
+        }
+    }
+
+    public async Task<Maybe<Entities.Wishlist>> Read(Guid entityId)
+    {
+        var entity = await _context.Wishlists.FindAsync(entityId);
+        return entity;
+    }
+
+    public async Task<Result<Entities.Wishlist>> Update(Entities.Wishlist entity)
+    {
+        var oldEntity = await Read(entity.Id);
+        if (oldEntity.HasNoValue)
+        {
+            return Result.Failure<Entities.Wishlist>("The given entity was not found.");
+        }
+        entity.LastModified =  DateTime.UtcNow;
+        _context.Wishlists.Update(entity);
+        await _context.SaveChangesAsync();
+        return Result.Success(entity);
+    }
+
+    public async Task<Result<Entities.Wishlist>> Delete(Guid entityId)
+    {
+        var entity = await Read(entityId);
+        if (entity.HasNoValue)
+        {
+            return Result.Failure<Entities.Wishlist>("The given entity was not found.");
+        }
+        var deletedEntity = _context.Wishlists.Remove(entity.Value);
+        await _context.SaveChangesAsync();
+        return Result.Success(deletedEntity.Entity);
+    }
+
+    public async Task<Result<Wish>> AddWish(Guid id, Wish wish)
+    {
+        var listMaybe = await Read(id);
+        if (listMaybe.HasNoValue)
+        {
+            return Result.Failure<Wish>($"Wishlist '{id}' was not found. Wish '{wish.Id}' not added");
+        }
+        var wishlist = listMaybe.Value;
+
+        wish.WishlistId = wishlist.Id;
+        wishlist.Wishes.Add(wish);
+        var update = await Update(wishlist);
+        if (update.IsFailure)
+        {
+            return Result.Failure<Wish>(update.Error);
+        }
+        await _context.SaveChangesAsync();
+        return Result.Success(wish);
+    }
+}
\ No newline at end of file
diff --git a/Wishlist/Program.cs b/Wishlist/Program.cs
index 1ed0eda..abcba56 100644
--- a/Wishlist/Program.cs
+++ b/Wishlist/Program.cs
@@ -6,6 +6,8 @@ using Microsoft.EntityFrameworkCore;
 using Wishlist.Components;
 using Wishlist.Data;
 using Wishlist.Data.Entities;
+using Wishlist.Data.Services;
+using Wishlist.Data.Services.Interfaces;
 
 namespace Wishlist;
 
@@ -26,6 +28,8 @@ public class Program
         builder.Services.AddScoped<IdentityUserAccessor>();
         builder.Services.AddScoped<IdentityRedirectManager>();
         builder.Services.AddScoped<AuthenticationStateProvider, IdentityRevalidatingAuthenticationStateProvider>();
+        builder.Services.AddScoped<IWishlistService, WishlistService>();
+        builder.Services.AddScoped<IWishService, WishService>();
 
         builder.Services.AddAuthentication(options =>
             {
diff --git a/Wishlist/Wishlist.csproj b/Wishlist/Wishlist.csproj
index 2ef5876..43af255 100644
--- a/Wishlist/Wishlist.csproj
+++ b/Wishlist/Wishlist.csproj
@@ -9,6 +9,11 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <PackageReference Include="CSharpFunctionalExtensions" Version="3.7.0" />
+        <PackageReference Include="CSharpFunctionalExtensions.Analyzers" Version="1.4.1">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
         <PackageReference Include="DotNetEnv" Version="3.1.1" />
         <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="9.0.12"/>
         <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="9.0.12"/>