From 70860efcfb02289578908711c25b236e5e5eb788 Mon Sep 17 00:00:00 2001
From: Khwezi Mngoma <khwezi@msn.com>
Date: Tue, 26 May 2026 08:24:38 +0200
Subject: [PATCH] Created Order, Refund, Shipping

---
 .../LiteCharms.Features.MidrandBooks.csproj   |   4 -
 .../Orders/Entities/Order.cs                  |  11 ++
 .../Orders/Entities/OrderConfiguration.cs     |  17 +++
 .../Orders/Entities/OrderItem.cs              |  14 +++
 .../Orders/Entities/OrderItemConfiguration.cs |  31 +++++
 .../Orders/Entities/Refund.cs                 |   7 ++
 .../Orders/Entities/RefundConfiguration.cs    |  22 ++++
 .../Orders/Entities/Shipping.cs               |  13 +++
 .../Orders/Entities/ShippingConfiguration.cs  |  32 +++++
 .../Orders/Entities/ShippingProvider.cs       |   6 +
 .../Entities/ShippingProviderConfiguration.cs |  17 +++
 .../{Order => Orders}/Models/Order.cs         |   6 +-
 .../Orders/Models/OrderItem.cs                |  16 +++
 .../Orders/Models/Records.cs                  |   5 +
 .../{Order => Orders}/Models/Refund.cs        |   2 +-
 .../{Order => Orders}/Models/Shipping.cs      |   6 +-
 .../Models/ShippingProvider.cs                |   2 +-
 .../Orders/OrderService.cs                    | 109 ++++++++++++++++++
 .../Postgres/MidrandBooksDbContext.cs         |  11 ++
 19 files changed, 320 insertions(+), 11 deletions(-)
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/Order.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/OrderConfiguration.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItem.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItemConfiguration.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/Refund.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/RefundConfiguration.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/Shipping.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingConfiguration.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProvider.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProviderConfiguration.cs
 rename LiteCharms.Features.MidrandBooks/{Order => Orders}/Models/Order.cs (69%)
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Models/OrderItem.cs
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/Models/Records.cs
 rename LiteCharms.Features.MidrandBooks/{Order => Orders}/Models/Refund.cs (85%)
 rename LiteCharms.Features.MidrandBooks/{Order => Orders}/Models/Shipping.cs (61%)
 rename LiteCharms.Features.MidrandBooks/{Order => Orders}/Models/ShippingProvider.cs (84%)
 create mode 100644 LiteCharms.Features.MidrandBooks/Orders/OrderService.cs

diff --git a/LiteCharms.Features.MidrandBooks/LiteCharms.Features.MidrandBooks.csproj b/LiteCharms.Features.MidrandBooks/LiteCharms.Features.MidrandBooks.csproj
index 34c16e0..552ce45 100644
--- a/LiteCharms.Features.MidrandBooks/LiteCharms.Features.MidrandBooks.csproj
+++ b/LiteCharms.Features.MidrandBooks/LiteCharms.Features.MidrandBooks.csproj
@@ -163,8 +163,4 @@
     </None>
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Order\Entities\" />
-  </ItemGroup>
-
 </Project>
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/Order.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/Order.cs
new file mode 100644
index 0000000..ddc8468
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/Order.cs
@@ -0,0 +1,11 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+[EntityTypeConfiguration<OrderConfiguration, Order>]
+public class Order : Models.Order
+{
+    public virtual Shipping? Shipping { get; set; }
+
+    public virtual ICollection<OrderItem> OrderItems { get; set; } = [];
+
+    public virtual ICollection<Refund> Refunds { get; set; } = [];
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderConfiguration.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderConfiguration.cs
new file mode 100644
index 0000000..4063456
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderConfiguration.cs
@@ -0,0 +1,17 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+public class OrderConfiguration : IEntityTypeConfiguration<Order>
+{
+    public void Configure(EntityTypeBuilder<Order> builder)
+    {
+        builder.ToTable("Orders");
+
+        builder.HasKey(o => o.Id);
+        builder.Property(o => o.CustomerId).IsRequired();
+        builder.Property(o => o.CreatedAt).IsRequired().ValueGeneratedOnAdd().HasDefaultValueSql("now()");
+        builder.Property(o => o.UpdatedAt).HasDefaultValueSql("now()");
+        builder.Property(o => o.Status).IsRequired();
+        builder.Property(o => o.Total).IsRequired().HasColumnType("decimal(18,2)");
+        builder.Property(o => o.Notes).HasMaxLength(1000);        
+    }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItem.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItem.cs
new file mode 100644
index 0000000..d255a04
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItem.cs
@@ -0,0 +1,14 @@
+using LiteCharms.Features.MidrandBooks.AuthorBooks.Entities;
+using LiteCharms.Features.MidrandBooks.Products.Entities;
+
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+[EntityTypeConfiguration<OrderItemConfiguration, OrderItem>]
+public class OrderItem : Models.OrderItem
+{
+    public virtual Order? Order { get; set; }
+
+    public virtual AuthorBook? AuthorBook { get; set; }
+
+    public virtual ProductPrice? ProductPrice { get; set; }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItemConfiguration.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItemConfiguration.cs
new file mode 100644
index 0000000..50ac4da
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/OrderItemConfiguration.cs
@@ -0,0 +1,31 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+public class OrderItemConfiguration : IEntityTypeConfiguration<OrderItem>
+{
+    public void Configure(EntityTypeBuilder<OrderItem> builder)
+    {
+        builder.ToTable("OrderItems");
+
+        builder.HasKey(oi => oi.Id);
+        builder.Property(oi => oi.CreatedAt).IsRequired().ValueGeneratedOnAdd().HasDefaultValueSql("new()");
+        builder.Property(oi => oi.OrderId).IsRequired();
+        builder.Property(oi => oi.AuthorBookId).IsRequired();
+        builder.Property(oi => oi.ProductPriceId).IsRequired();
+        builder.Property(oi => oi.Quantity).IsRequired();
+
+        builder.HasOne(oi => oi.Order)
+            .WithMany(o => o.OrderItems)
+            .HasForeignKey(oi => oi.OrderId)
+            .OnDelete(DeleteBehavior.Cascade);
+
+        builder.HasOne(oi => oi.AuthorBook)
+            .WithMany()
+            .HasForeignKey(oi => oi.AuthorBookId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(oi => oi.ProductPrice)
+            .WithMany()
+            .HasForeignKey(oi => oi.ProductPriceId)
+            .OnDelete(DeleteBehavior.Restrict);
+    }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/Refund.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/Refund.cs
new file mode 100644
index 0000000..3116896
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/Refund.cs
@@ -0,0 +1,7 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+[EntityTypeConfiguration<RefundConfiguration, Refund>]
+public class Refund : Models.Refund
+{
+    public virtual Order? Order { get; set; }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/RefundConfiguration.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/RefundConfiguration.cs
new file mode 100644
index 0000000..566b779
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/RefundConfiguration.cs
@@ -0,0 +1,22 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+public class RefundConfiguration : IEntityTypeConfiguration<Refund>
+{
+    public void Configure(EntityTypeBuilder<Refund> builder)
+    {
+        builder.ToTable("Refunds");
+
+        builder.HasKey(r => r.Id);
+        builder.Property(r => r.OrderId).IsRequired();
+        builder.Property(o => o.CreatedAt).IsRequired().ValueGeneratedOnAdd().HasDefaultValueSql("now()");
+        builder.Property(o => o.UpdatedAt).HasDefaultValueSql("now()");
+        builder.Property(o => o.Status).IsRequired();
+        builder.Property(r => r.Amount).IsRequired().HasPrecision(18, 2);
+        builder.Property(r => r.Reason).HasMaxLength(1000);
+
+        builder.HasOne(r => r.Order)
+            .WithMany(o => o.Refunds)
+            .HasForeignKey(r => r.OrderId)
+            .OnDelete(DeleteBehavior.Restrict);
+    }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/Shipping.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/Shipping.cs
new file mode 100644
index 0000000..d8f9e07
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/Shipping.cs
@@ -0,0 +1,13 @@
+using LiteCharms.Features.MidrandBooks.Customers.Entities;
+
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+[EntityTypeConfiguration<ShippingConfiguration, Shipping>]
+public class Shipping : Models.Shipping
+{
+    public virtual Order? Order { get; set; }
+
+    public virtual Address? Address { get; set; }
+
+    public virtual ShippingProvider? ShippingProvider { get; set; }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingConfiguration.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingConfiguration.cs
new file mode 100644
index 0000000..2da9465
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingConfiguration.cs
@@ -0,0 +1,32 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+public class ShippingConfiguration : IEntityTypeConfiguration<Shipping>
+{
+    public void Configure(EntityTypeBuilder<Shipping> builder)
+    {
+        builder.ToTable("Shippings");
+
+        builder.HasKey(s => s.Id);
+        builder.Property(s => s.OrderId).IsRequired();
+        builder.Property(s => s.AddressId).IsRequired();
+        builder.Property(s => s.ShippingProviderId).IsRequired();
+        builder.Property(s => s.CreatedAt).IsRequired().ValueGeneratedOnAdd().HasDefaultValueSql("now()");
+        builder.Property(s => s.UpdatedAt).HasDefaultValueSql("now()");
+        builder.Property(s => s.Status).IsRequired();
+
+        builder.HasOne(s => s.Order)
+            .WithOne(o => o.Shipping)
+            .HasForeignKey<Shipping>(s => s.OrderId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(s => s.Address)
+            .WithMany()
+            .HasForeignKey(s => s.AddressId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(f => f.ShippingProvider)
+            .WithMany(f => f.Shippings)
+            .HasForeignKey(f => f.ShippingProviderId)
+            .OnDelete(DeleteBehavior.Restrict);
+    }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProvider.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProvider.cs
new file mode 100644
index 0000000..1fc3127
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProvider.cs
@@ -0,0 +1,6 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+public class ShippingProvider : Models.ShippingProvider
+{
+    public virtual ICollection<Shipping> Shippings { get; set; } = [];
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProviderConfiguration.cs b/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProviderConfiguration.cs
new file mode 100644
index 0000000..003ab98
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Entities/ShippingProviderConfiguration.cs
@@ -0,0 +1,17 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Entities;
+
+public class ShippingProviderConfiguration : IEntityTypeConfiguration<ShippingProvider>
+{
+    public void Configure(EntityTypeBuilder<ShippingProvider> builder)
+    {
+        builder.ToTable("ShippingProviders");
+
+        builder.HasKey(f => f.Id);
+        builder.Property(f => f.CreatedAt).IsRequired().ValueGeneratedOnAdd().HasDefaultValueSql("now()");
+        builder.Property(f => f.UpdatedAt).HasDefaultValueSql("now()");
+        builder.Property(f => f.Type).IsRequired();
+        builder.Property(f => f.Name).IsRequired().HasMaxLength(100);
+        builder.Property(f => f.Price).IsRequired().HasPrecision(18, 2);
+        builder.Property(f => f.Enabled).HasDefaultValue(true);
+    }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Order/Models/Order.cs b/LiteCharms.Features.MidrandBooks/Orders/Models/Order.cs
similarity index 69%
rename from LiteCharms.Features.MidrandBooks/Order/Models/Order.cs
rename to LiteCharms.Features.MidrandBooks/Orders/Models/Order.cs
index e0c1c73..a86c03e 100644
--- a/LiteCharms.Features.MidrandBooks/Order/Models/Order.cs
+++ b/LiteCharms.Features.MidrandBooks/Orders/Models/Order.cs
@@ -1,4 +1,4 @@
-namespace LiteCharms.Features.MidrandBooks.Order.Models;
+namespace LiteCharms.Features.MidrandBooks.Orders.Models;
 
 public class Order
 {
@@ -14,9 +14,7 @@ public class Order
 
     public decimal Total { get; set; }
 
-    public string[]? Notes { get; set; }
-
-    public string[]? Terms { get; set; }
+    public string? Notes { get; set; }
 
     public string? InvoiceUrl { get; set; }
 }
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Models/OrderItem.cs b/LiteCharms.Features.MidrandBooks/Orders/Models/OrderItem.cs
new file mode 100644
index 0000000..424ad4f
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Models/OrderItem.cs
@@ -0,0 +1,16 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Models;
+
+public class OrderItem
+{
+    public long Id { get; set; }
+
+    public DateTime CreatedAt { get; set; }
+
+    public long OrderId { get; set; }
+
+    public long AuthorBookId { get; set; }
+
+    public long ProductPriceId { get; set; }
+
+    public int Quantity { get; set; }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Orders/Models/Records.cs b/LiteCharms.Features.MidrandBooks/Orders/Models/Records.cs
new file mode 100644
index 0000000..a77d3aa
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/Models/Records.cs
@@ -0,0 +1,5 @@
+namespace LiteCharms.Features.MidrandBooks.Orders.Models;
+
+public record CreateOrder(long CustomerId, decimal TotalPrice, string? Notes);
+
+public record CreateOrderItem(long AuthorBookId, long ProductPriceId, int Quantity);
diff --git a/LiteCharms.Features.MidrandBooks/Order/Models/Refund.cs b/LiteCharms.Features.MidrandBooks/Orders/Models/Refund.cs
similarity index 85%
rename from LiteCharms.Features.MidrandBooks/Order/Models/Refund.cs
rename to LiteCharms.Features.MidrandBooks/Orders/Models/Refund.cs
index 920145e..3f5eec4 100644
--- a/LiteCharms.Features.MidrandBooks/Order/Models/Refund.cs
+++ b/LiteCharms.Features.MidrandBooks/Orders/Models/Refund.cs
@@ -1,4 +1,4 @@
-namespace LiteCharms.Features.MidrandBooks.Order.Models;
+namespace LiteCharms.Features.MidrandBooks.Orders.Models;
 
 public class Refund
 {
diff --git a/LiteCharms.Features.MidrandBooks/Order/Models/Shipping.cs b/LiteCharms.Features.MidrandBooks/Orders/Models/Shipping.cs
similarity index 61%
rename from LiteCharms.Features.MidrandBooks/Order/Models/Shipping.cs
rename to LiteCharms.Features.MidrandBooks/Orders/Models/Shipping.cs
index 975ab91..c43bc1f 100644
--- a/LiteCharms.Features.MidrandBooks/Order/Models/Shipping.cs
+++ b/LiteCharms.Features.MidrandBooks/Orders/Models/Shipping.cs
@@ -1,4 +1,4 @@
-namespace LiteCharms.Features.MidrandBooks.Order.Models;
+namespace LiteCharms.Features.MidrandBooks.Orders.Models;
 
 public class Shipping
 {
@@ -10,5 +10,9 @@ public class Shipping
 
     public long OrderId { get; set; }
 
+    public long AddressId { get; set; }
+
+    public long ShippingProviderId { get; set; }
+
     public ShippingStatuses Status { get; set; }
 }
diff --git a/LiteCharms.Features.MidrandBooks/Order/Models/ShippingProvider.cs b/LiteCharms.Features.MidrandBooks/Orders/Models/ShippingProvider.cs
similarity index 84%
rename from LiteCharms.Features.MidrandBooks/Order/Models/ShippingProvider.cs
rename to LiteCharms.Features.MidrandBooks/Orders/Models/ShippingProvider.cs
index 8c129b4..76a396e 100644
--- a/LiteCharms.Features.MidrandBooks/Order/Models/ShippingProvider.cs
+++ b/LiteCharms.Features.MidrandBooks/Orders/Models/ShippingProvider.cs
@@ -1,4 +1,4 @@
-namespace LiteCharms.Features.MidrandBooks.Order.Models;
+namespace LiteCharms.Features.MidrandBooks.Orders.Models;
 
 public class ShippingProvider
 {
diff --git a/LiteCharms.Features.MidrandBooks/Orders/OrderService.cs b/LiteCharms.Features.MidrandBooks/Orders/OrderService.cs
new file mode 100644
index 0000000..9e37122
--- /dev/null
+++ b/LiteCharms.Features.MidrandBooks/Orders/OrderService.cs
@@ -0,0 +1,109 @@
+using LiteCharms.Features.MidrandBooks.Abstractions;
+using LiteCharms.Features.MidrandBooks.Orders.Models;
+using LiteCharms.Features.MidrandBooks.Postgres;
+
+namespace LiteCharms.Features.MidrandBooks.Orders;
+
+public class OrderService(IDbContextFactory<MidrandBooksDbContext> contextFactory) : IService
+{
+    public async ValueTask<Result<long>> CreateOrderAsync(long customerId, CreateOrder request, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if (!await context.Customers.AnyAsync(c => c.Id == customerId, cancellationToken))
+                return Result.Fail<long>("Customer not found.");
+
+            var order = context.Orders.Add(new Entities.Order
+            {
+                CustomerId = customerId,
+                Status = OrderStatus.Pending,
+                Total = request.TotalPrice
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok(order.Entity.Id)
+                : Result.Fail<long>("Failed to create order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<long>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<long>> AddItemToOrderAsync(long orderId, CreateOrderItem request, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if (!await context.Orders.AnyAsync(o => o.Id == orderId, cancellationToken))
+                return Result.Fail<long>("Order not found.");
+
+            if(!await context.Books.AnyAsync(ab => ab.Id == request.AuthorBookId, cancellationToken))
+                return Result.Fail<long>("Author book not found.");
+
+            if (!await context.Prices.AnyAsync(pp => pp.Id == request.ProductPriceId, cancellationToken))
+                return Result.Fail<long>("Product price not found.");
+
+            var orderItem = context.OrderItems.Add(new Entities.OrderItem
+            {
+                OrderId = orderId,
+                AuthorBookId = request.AuthorBookId,
+                ProductPriceId = request.ProductPriceId,
+                Quantity = request.Quantity
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok(orderItem.Entity.Id)
+                : Result.Fail<long>("Failed to add item to order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<long>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> AddItemsToOrderAsync(long orderId, CreateOrderItem[] items, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            if(items.Length == 0)
+                return Result.Fail("No items to add.");
+
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if (!await context.Orders.AnyAsync(o => o.Id == orderId, cancellationToken))
+                return Result.Fail("Order not found.");
+                        
+            var existingItems = context.OrderItems.Where(oi => oi.OrderId == orderId);
+            context.OrderItems.RemoveRange(existingItems);
+
+            foreach (var item in items)
+            {
+                if (!await context.Books.AnyAsync(ab => ab.Id == item.AuthorBookId, cancellationToken))
+                    return Result.Fail($"Author book with ID {item.AuthorBookId} not found.");
+
+                if (!await context.Prices.AnyAsync(pp => pp.Id == item.ProductPriceId, cancellationToken))
+                    return Result.Fail($"Product price with ID {item.ProductPriceId} not found.");
+
+                context.OrderItems.Add(new Entities.OrderItem
+                {
+                    OrderId = orderId,
+                    AuthorBookId = item.AuthorBookId,
+                    ProductPriceId = item.ProductPriceId,
+                    Quantity = item.Quantity
+                });
+            }
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to add items to order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
diff --git a/LiteCharms.Features.MidrandBooks/Postgres/MidrandBooksDbContext.cs b/LiteCharms.Features.MidrandBooks/Postgres/MidrandBooksDbContext.cs
index d786b93..901933e 100644
--- a/LiteCharms.Features.MidrandBooks/Postgres/MidrandBooksDbContext.cs
+++ b/LiteCharms.Features.MidrandBooks/Postgres/MidrandBooksDbContext.cs
@@ -1,6 +1,7 @@
 using LiteCharms.Features.MidrandBooks.AuthorBooks.Entities;
 using LiteCharms.Features.MidrandBooks.Authors.Entities;
 using LiteCharms.Features.MidrandBooks.Customers.Entities;
+using LiteCharms.Features.MidrandBooks.Orders.Entities;
 using LiteCharms.Features.MidrandBooks.Pages.Entities;
 using LiteCharms.Features.MidrandBooks.Products.Entities;
 
@@ -23,4 +24,14 @@ public class MidrandBooksDbContext(DbContextOptions<MidrandBooksDbContext> optio
     public DbSet<Address> Addresses => Set<Address>();
 
     public DbSet<Customer> Customers => Set<Customer>();
+
+    public DbSet<Order> Orders => Set<Order>();
+
+    public DbSet<OrderItem> OrderItems => Set<OrderItem>();
+
+    public DbSet<Refund> Refunds => Set<Refund>();
+
+    public DbSet<Shipping> Shippings => Set<Shipping>();
+
+    public DbSet<ShippingProvider> ShippingProviders => Set<ShippingProvider>();
 }