Remove Repositories folder reference from project file

Removed the <ItemGroup> entry for the "Repositories" folder in DbFirst.Domain.csproj. This change only affects the project file and does not delete the folder or its contents from the file system.

DbFirst.API/Program.cs

@@ -1,10 +1,8 @@
+using DbFirst.API.Middleware;
 using DbFirst.Application;
-using DbFirst.Application.Catalogs;
-using DbFirst.Domain.Repositories;
+using DbFirst.Application.Repositories;
 using DbFirst.Infrastructure;
 using DbFirst.Infrastructure.Repositories;
-using MediatR;
-using DbFirst.API.Middleware;
 
 var builder = WebApplication.CreateBuilder(args);
 

DbFirst.API/appsettings.json

@@ -8,6 +8,18 @@
       "http://localhost:5101"
     ]
   },
+  "TableConfigurations": {
+    "VwmyCatalog": {
+      "ViewName": "VWMY_CATALOG",
+      "GuidColumnName": "GUID",
+      "CatTitleColumnName": "CAT_TITLE",
+      "CatStringColumnName": "CAT_STRING",
+      "AddedWhoColumnName": "ADDED_WHO",
+      "AddedWhenColumnName": "ADDED_WHEN",
+      "ChangedWhoColumnName": "CHANGED_WHO",
+      "ChangedWhenColumnName": "CHANGED_WHEN"
+    }
+  },
   "Logging": {
     "LogLevel": {
       "Default": "Information",

DbFirst.Application/Catalogs/CatalogService.cs

@@ -1,102 +0,0 @@
-using AutoMapper;
-using DbFirst.Domain.Repositories;
-using DbFirst.Domain.Entities;
-using DbFirst.Domain;
-
-namespace DbFirst.Application.Catalogs;
-
-//TODO: create generic service to reduce code duplication
-
-/* Copilot's Response:
-A generic CRUD base service adds little value in your case:
-
-Pros:
-• Less boilerplate for simple entities without special logic.
-• Uniform CRUD signatures.
-
-Cons/Practical here:
-• Domain logic differs per entity(unique title check, setting audit fields, forbidding title changes, stored procs with output GUID).
-• Generic services tend to be diluted by virtual methods/hooks for special cases—ending up with per-entity overrides and little real gain.
-• With stored procedures and output parameters, the pattern doesn’t fit cleanly because operations aren’t symmetric (separate procs for insert/update/delete).
-
-Conclusion: For this solution a generic service would be more overhead than benefit. If you later have multiple very similar entities without special logic,
-you could consider a lightweight generic interface/base; for now, the specialized service implementation is cleaner. */
-
-/* Hakan's Response: 
- * No, it absolutely makes sense to create a generic service using Options pattern. So, you can easily inject your SQL queries or stored procedure names via configuration.
- * see: https://docs.microsoft.com/en-us/dotnet/core/extensions/options
- */
-
-//TODO: implement CQRS pattern with MediatR
-
-/* Hakan's response
- * Here is the main part. We dont even need a service layer if we implement CQRS with MediatR at least for CRUD operations.
- */
-
-public class CatalogService : ICatalogService
-{
-    private readonly ICatalogRepository _repository;
-    private readonly IMapper _mapper;
-
-    public CatalogService(ICatalogRepository repository, IMapper mapper)
-    {
-        _repository = repository;
-        _mapper = mapper;
-    }
-
-    public async Task<List<CatalogReadDto>> GetAllAsync(CancellationToken cancellationToken = default)
-    {
-        var items = await _repository.GetAllAsync(cancellationToken);
-        return _mapper.Map<List<CatalogReadDto>>(items);
-    }
-
-    public async Task<CatalogReadDto?> GetByIdAsync(int id, CancellationToken cancellationToken = default)
-    {
-        var item = await _repository.GetByIdAsync(id, cancellationToken);
-        return item == null ? null : _mapper.Map<CatalogReadDto>(item);
-    }
-
-    public async Task<CatalogReadDto?> CreateAsync(CatalogWriteDto dto, CancellationToken cancellationToken = default)
-    {
-        var existing = await _repository.GetByTitleAsync(dto.CatTitle, cancellationToken);
-        if (existing != null)
-        {
-            return null;
-        }
-
-        var entity = _mapper.Map<VwmyCatalog>(dto);
-        entity.AddedWho = "system";
-        entity.AddedWhen = DateTime.UtcNow;
-        entity.ChangedWho = "system";
-        entity.ChangedWhen = DateTime.UtcNow;
-
-        var created = await _repository.InsertAsync(entity, cancellationToken);
-        return _mapper.Map<CatalogReadDto>(created);
-    }
-
-    public async Task<CatalogReadDto?> UpdateAsync(int id, CatalogWriteDto dto, CancellationToken cancellationToken = default)
-    {
-        var existing = await _repository.GetByIdAsync(id, cancellationToken);
-        if (existing == null)
-        {
-            return null;
-        }
-
-        var entity = _mapper.Map<VwmyCatalog>(dto);
-        entity.Guid = id;
-        entity.CatTitle = dto.UpdateProcedure == CatalogUpdateProcedure.Update ? existing.CatTitle : dto.CatTitle;
-        entity.AddedWho = existing.AddedWho;
-        entity.AddedWhen = existing.AddedWhen;
-        entity.ChangedWho = "system";
-        entity.ChangedWhen = DateTime.UtcNow;
-
-        var procedure = dto.UpdateProcedure;
-        var updated = await _repository.UpdateAsync(id, entity, procedure, cancellationToken);
-        return updated == null ? null : _mapper.Map<CatalogReadDto>(updated);
-    }
-
-    public async Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default)
-    {
-        return await _repository.DeleteAsync(id, cancellationToken);
-    }
-}

DbFirst.Application/Catalogs/Commands/CreateCatalogCommand.cs

@@ -1,4 +1,3 @@
-using DbFirst.Application.Catalogs;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Commands;

DbFirst.Application/Catalogs/Commands/CreateCatalogHandler.cs

@@ -1,6 +1,6 @@
 using AutoMapper;
+using DbFirst.Application.Repositories;
 using DbFirst.Domain.Entities;
-using DbFirst.Domain.Repositories;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Commands;

DbFirst.Application/Catalogs/Commands/DeleteCatalogHandler.cs

@@ -1,4 +1,4 @@
-using DbFirst.Domain.Repositories;
+using DbFirst.Application.Repositories;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Commands;

DbFirst.Application/Catalogs/Commands/UpdateCatalogCommand.cs

@@ -1,4 +1,3 @@
-using DbFirst.Application.Catalogs;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Commands;

DbFirst.Application/Catalogs/Commands/UpdateCatalogHandler.cs

@@ -1,6 +1,6 @@
 using AutoMapper;
+using DbFirst.Application.Repositories;
 using DbFirst.Domain.Entities;
-using DbFirst.Domain.Repositories;
 using DbFirst.Domain;
 using MediatR;
 

DbFirst.Application/Catalogs/ICatalogService.cs

@@ -1,27 +0,0 @@
-namespace DbFirst.Application.Catalogs;
-
-//TODO: create generic service to reduce code duplication
-
-/* Copilot's Response:
-A generic CRUD base service adds little value in your case:
-
-Pros:
-• Less boilerplate for simple entities without special logic.
-• Uniform CRUD signatures.
-
-Cons/Practical here:
-• Domain logic differs per entity(unique title check, setting audit fields, forbidding title changes, stored procs with output GUID).
-• Generic services tend to be diluted by virtual methods/hooks for special cases—ending up with per-entity overrides and little real gain.
-• With stored procedures and output parameters, the pattern doesn’t fit cleanly because operations aren’t symmetric (separate procs for insert/update/delete).
-
-Conclusion: For this solution a generic service would be more overhead than benefit. If you later have multiple very similar entities without special logic,
-you could consider a lightweight generic interface/base; for now, the specialized service implementation is cleaner. */
-
-public interface ICatalogService
-{
-    Task<List<CatalogReadDto>> GetAllAsync(CancellationToken cancellationToken = default);
-    Task<CatalogReadDto?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
-    Task<CatalogReadDto?> CreateAsync(CatalogWriteDto dto, CancellationToken cancellationToken = default);
-    Task<CatalogReadDto?> UpdateAsync(int id, CatalogWriteDto dto, CancellationToken cancellationToken = default);
-    Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default);
-}

DbFirst.Application/Catalogs/Queries/GetAllCatalogsHandler.cs

@@ -1,5 +1,5 @@
 using AutoMapper;
-using DbFirst.Domain.Repositories;
+using DbFirst.Application.Repositories;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Queries;

DbFirst.Application/Catalogs/Queries/GetAllCatalogsQuery.cs

@@ -1,4 +1,3 @@
-using DbFirst.Application.Catalogs;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Queries;

DbFirst.Application/Catalogs/Queries/GetCatalogByIdHandler.cs

@@ -1,5 +1,5 @@
 using AutoMapper;
-using DbFirst.Domain.Repositories;
+using DbFirst.Application.Repositories;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Queries;

DbFirst.Application/Catalogs/Queries/GetCatalogByIdQuery.cs

@@ -1,4 +1,3 @@
-using DbFirst.Application.Catalogs;
 using MediatR;
 
 namespace DbFirst.Application.Catalogs.Queries;

DbFirst.Application/Repositories/ICatalogRepository.cs

@@ -0,0 +1,10 @@
+using DbFirst.Domain;
+using DbFirst.Domain.Entities;
+
+namespace DbFirst.Application.Repositories;
+
+public interface ICatalogRepository : IRepository<VwmyCatalog>
+{
+    Task<VwmyCatalog?> GetByTitleAsync(string title, CancellationToken cancellationToken = default);
+    Task<VwmyCatalog?> UpdateAsync(int id, VwmyCatalog catalog, CatalogUpdateProcedure procedure, CancellationToken cancellationToken = default);
+}

DbFirst.Application/Repositories/IRepository.cs

@@ -0,0 +1,10 @@
+namespace DbFirst.Application.Repositories;
+
+public interface IRepository<T>
+{
+    Task<List<T>> GetAllAsync(CancellationToken cancellationToken = default);
+    Task<T?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
+    Task<T> InsertAsync(T entity, CancellationToken cancellationToken = default);
+    Task<T?> UpdateAsync(int id, T entity, CancellationToken cancellationToken = default);
+    Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default);
+}

DbFirst.Domain/DbFirst.Domain.csproj

@@ -6,8 +6,4 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <Folder Include="Repositories\" />
-  </ItemGroup>
-
 </Project>

DbFirst.Domain/Repositories/ICatalogRepository.cs

@@ -1,46 +0,0 @@
-using DbFirst.Domain.Entities;
-using DbFirst.Domain;
-
-namespace DbFirst.Domain.Repositories;
-
-// TODO: instead of creating interface per entity, consider using generic repository pattern (eg. IRepository<T>) to reduce code duplication.
-
-/* Copilot's Response:
-
-A generic Repository<T> isn’t really worthwhile here:
-    • Reads from the view are generic, but inserts/updates/deletes go through stored procedures with special parameters/output GUIDs.You’d need lots of exceptions/overrides—little gain.
-    • Operations aren’t symmetric (separate procs for insert/update/delete with output handling and reload), so a one-size-fits-all CRUD pattern doesn’t fit well.
-    • Better to keep the specialized repo.If you want reuse, extract small helpers (e.g., for proc calls/output parameters/reload) instead of forcing a generic repository. */
-
-
-/* Hakan's Response: 
- * I think it still makes sense. An execute SQL method can be added to repository. The relevant SQL can be executed in the application layer.
- * Because the application layer is no longer dependent on a method like CreateAsync. It is now directly dependent on that procedure.
- */
-
-// TODO: move to application layer as a part of clean architecture
-
-/* Copilot's Response:
-
-    • Common: Keep the interface in the Domain layer, implementation in Infrastructure. Domain defines the data access contract, Infrastructure provides the implementation.
-    That matches typical DDD/Clean Architecture.
-    • Alternative: Move the interface to the Application layer. Then only Application depends on Infrastructure, Domain stays isolated from infra contracts.
-    Pro: Domain contains only models/rules.
-    Con: If Domain logic needs repos, it would depend on Application, weakening the layer separation.
-    Recommendation: Keep the interface in Domain. It’s conventional, clean, and avoids a Domain -> Application dependency. Implementation stays in Infrastructure. */
-
-/* Hakan's Response:
- *  I don't think there's any point in keeping repository interfaces in the domain layer. These interfaces will be used in the application layer, not the domain layer. 
- *  Furthermore, this is how they are used in the most popular clean architecture pattern. 
- *  See: https://github.com/jasontaylordev/CleanArchitecture/blob/main/src/Infrastructure/Identity/IdentityService.cs
- */
-
-public interface ICatalogRepository
-{
-    Task<List<VwmyCatalog>> GetAllAsync(CancellationToken cancellationToken = default);
-    Task<VwmyCatalog?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
-    Task<VwmyCatalog?> GetByTitleAsync(string title, CancellationToken cancellationToken = default);
-    Task<VwmyCatalog> InsertAsync(VwmyCatalog catalog, CancellationToken cancellationToken = default);
-    Task<VwmyCatalog?> UpdateAsync(int id, VwmyCatalog catalog, CatalogUpdateProcedure procedure, CancellationToken cancellationToken = default);
-    Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default);
-}

DbFirst.Infrastructure/ApplicationDbContext.cs

@@ -1,49 +1,54 @@
 using DbFirst.Domain.Entities;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
 
 namespace DbFirst.Infrastructure;
 
 public partial class ApplicationDbContext : DbContext
 {
-    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
+    private readonly TableConfigurations _config;
+
+    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options, IOptionsMonitor<TableConfigurations> configOptions)
         : base(options)
     {
+        _config = configOptions.CurrentValue;
     }
 
     public virtual DbSet<VwmyCatalog> VwmyCatalogs { get; set; }
 
-    // TODO: Configure column names on appsettings via IConfiguration
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
+        var catCfg = _config.VwmyCatalog;
+
         modelBuilder.Entity<VwmyCatalog>(entity =>
         {
             entity.HasKey(e => e.Guid);
 
-            entity.ToView("VWMY_CATALOG");
+            entity.ToView(catCfg.ViewName);
 
-            entity.Property(e => e.Guid).HasColumnName("GUID");
+            entity.Property(e => e.Guid).HasColumnName(catCfg.GuidColumnName);
             entity.Property(e => e.AddedWho)
                 .HasMaxLength(30)
                 .IsUnicode(false)
-                .HasColumnName("ADDED_WHO");
+                .HasColumnName(catCfg.AddedWhoColumnName);
             entity.Property(e => e.AddedWhen)
                 .HasColumnType("datetime")
-                .HasColumnName("ADDED_WHEN");
+                .HasColumnName(catCfg.AddedWhenColumnName);
             entity.Property(e => e.CatString)
                 .HasMaxLength(900)
                 .IsUnicode(false)
-                .HasColumnName("CAT_STRING");
+                .HasColumnName(catCfg.CatStringColumnName);
             entity.Property(e => e.CatTitle)
                 .HasMaxLength(100)
                 .IsUnicode(false)
-                .HasColumnName("CAT_TITLE");
+                .HasColumnName(catCfg.CatTitleColumnName);
             entity.Property(e => e.ChangedWhen)
                 .HasColumnType("datetime")
-                .HasColumnName("CHANGED_WHEN");
+                .HasColumnName(catCfg.ChangedWhenColumnName);
             entity.Property(e => e.ChangedWho)
                 .HasMaxLength(30)
                 .IsUnicode(false)
-                .HasColumnName("CHANGED_WHO");
+                .HasColumnName(catCfg.ChangedWhoColumnName);
         });
 
         OnModelCreatingPartial(modelBuilder);

DbFirst.Infrastructure/DbFirst.Infrastructure.csproj

@@ -16,10 +16,12 @@
     </PackageReference>
     <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="8.0.0" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\DbFirst.Domain\DbFirst.Domain.csproj" />
+    <ProjectReference Include="..\DbFirst.Application\DbFirst.Application.csproj" />
   </ItemGroup>
 
 </Project>

DbFirst.Infrastructure/DependencyInjection.cs

@@ -8,6 +8,7 @@ public static class DependencyInjection
 {
     public static IServiceCollection AddInfrastructure(this IServiceCollection services, IConfiguration configuration)
     {
+        services.Configure<TableConfigurations>(configuration.GetSection("TableConfigurations"));
         services.AddDbContext<ApplicationDbContext>(options =>
             options.UseSqlServer(configuration.GetConnectionString("DefaultConnection")));
         return services;

DbFirst.Infrastructure/Repositories/CatalogRepository.cs

@@ -1,17 +1,9 @@
-using Azure;
+using DbFirst.Domain;
 using DbFirst.Domain.Entities;
-using DbFirst.Domain.Repositories;
+using DbFirst.Application.Repositories;
 using Microsoft.Data.SqlClient;
 using Microsoft.EntityFrameworkCore;
-using System;
-using System.Collections.Generic;
 using System.Data;
-using System.Diagnostics.Metrics;
-using System.Text;
-using System.Threading.Channels;
-using static Microsoft.EntityFrameworkCore.DbLoggerCategory;
-using static System.Runtime.InteropServices.JavaScript.JSType;
-using DbFirst.Domain;
 
 namespace DbFirst.Infrastructure.Repositories;
 
@@ -115,6 +107,11 @@ public class CatalogRepository : ICatalogRepository
         return await _db.VwmyCatalogs.AsNoTracking().FirstOrDefaultAsync(x => x.Guid == guid, cancellationToken);
     }
 
+    public async Task<VwmyCatalog?> UpdateAsync(int id, VwmyCatalog catalog, CancellationToken cancellationToken = default)
+    {
+        return await UpdateAsync(id, catalog, CatalogUpdateProcedure.Update, cancellationToken);
+    }
+
     public async Task<bool> DeleteAsync(int id, CancellationToken cancellationToken = default)
     {
         var exists = await _db.VwmyCatalogs.AsNoTracking().AnyAsync(x => x.Guid == id, cancellationToken);

DbFirst.Infrastructure/TableConfigurations.cs

@@ -0,0 +1,19 @@
+namespace DbFirst.Infrastructure
+{
+    public class TableConfigurations
+    {
+        public VwmyCatalogConfiguration VwmyCatalog { get; set; } = new();
+    }
+
+    public class VwmyCatalogConfiguration
+    {
+        public string ViewName { get; set; } = "VWMY_CATALOG";
+        public string GuidColumnName { get; set; } = "GUID";
+        public string CatTitleColumnName { get; set; } = "CAT_TITLE";
+        public string CatStringColumnName { get; set; } = "CAT_STRING";
+        public string AddedWhoColumnName { get; set; } = "ADDED_WHO";
+        public string AddedWhenColumnName { get; set; } = "ADDED_WHEN";
+        public string ChangedWhoColumnName { get; set; } = "CHANGED_WHO";
+        public string ChangedWhenColumnName { get; set; } = "CHANGED_WHEN";
+    }
+}