Retructured solution

LiteCharms.Features/Shop/Orders/Commands/CreateOrderCommand.cs

@@ -0,0 +1,40 @@
+namespace LiteCharms.Features.Orders.Commands;
+
+public class CreateOrderCommand : IRequest<Result<Guid>>
+{
+    public Guid CustomerId { get; set; }
+
+    public Guid ShoppingCartId { get; set; }
+
+    public Guid? QuoteId { get; set; }
+
+    public string[]? Requirements { get; set; }
+
+    public string[]? Notes { get; set; }
+
+    public string[]? Terms { get; set; }
+
+    public bool DepositRequired { get; set; }
+
+    private CreateOrderCommand(Guid customerId, Guid shoppingCartId, bool depositRequired, Guid? quoteId = null, string[]? requirements = null, string[]? notes = null, string[]? terms = null)
+    {
+        CustomerId = customerId;
+        ShoppingCartId = shoppingCartId;
+        DepositRequired = depositRequired;
+        QuoteId = quoteId;
+        Requirements = requirements;
+        Notes = notes;
+        Terms = terms;
+    }
+
+    public static CreateOrderCommand Create(Guid customerId, Guid shoppingCartId, bool depositRequired, Guid? quoteId = null, string[]? requirements = null, string[]? notes = null, string[]? terms = null)
+    {
+        if (customerId == Guid.Empty)
+            throw new ArgumentException("CustomerId is required.", nameof(customerId));
+
+        if (shoppingCartId == Guid.Empty)
+            throw new ArgumentException("ShoppingCartId is required.", nameof(shoppingCartId));
+
+        return new(customerId, shoppingCartId, depositRequired, quoteId, requirements, notes, terms);
+    }
+}

LiteCharms.Features/Shop/Orders/Commands/Handlers/CreateOrderCommandHandler.cs

@@ -0,0 +1,46 @@
+using LiteCharms.Features.Shop;
+using LiteCharms.Features.Shop.Postgres;
+using LiteCharms.Models;
+
+namespace LiteCharms.Features.Orders.Commands.Handlers;
+
+public class CreateOrderCommandHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<CreateOrderCommand, Result<Guid>>
+{
+    public async ValueTask<Result<Guid>> Handle(CreateOrderCommand request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if(!await context.Customers.AnyAsync(c => c.Id == request.CustomerId, cancellationToken))
+                return Result.Fail<Guid>(new Error($"Customer {request.CustomerId} does not exist."));
+
+            if(!await context.ShoppingCarts.AnyAsync(sc => sc.Id == request.ShoppingCartId, cancellationToken))
+                return Result.Fail<Guid>(new Error($"Shopping cart {request.ShoppingCartId} does not exist."));
+
+            if(request.QuoteId.HasValue && !await context.Quotes.AnyAsync(q => q.Id == request.QuoteId.Value, cancellationToken))
+                return Result.Fail<Guid>(new Error($"Quote {request.QuoteId.Value} does not exist."));
+
+            var newOrder = context.Orders.Add(new Entities.Order
+            {
+                CreatedAt = DateTime.UtcNow,
+                Status = OrderStatus.Pending,
+                CustomerId = request.CustomerId,
+                QuoteId = request.QuoteId,
+                ShoppingCartId = request.ShoppingCartId,
+                DepositRequired = request.DepositRequired,
+                Requirements = request.Requirements,
+                Notes = request.Notes,
+                Terms = request.Terms
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok(newOrder.Entity.Id)
+                : Result.Fail<Guid>(new Error($"Failed to create customer {request.CustomerId} order using shopping cart {request.ShoppingCartId}."));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<Guid>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}

LiteCharms.Features/Shop/Orders/Commands/Handlers/UpdateOrderStatusCommandHandler.cs

@@ -0,0 +1,29 @@
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Orders.Commands.Handlers;
+
+public class UpdateOrderStatusCommandHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<UpdateOrderStatusCommand, Result>
+{
+    public async ValueTask<Result> Handle(UpdateOrderStatusCommand request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var order = await context.Orders.FirstOrDefaultAsync(o => o.Id == request.OrderId, cancellationToken);
+
+            if (order is null)
+                return Result.Fail(new Error($"Order {request.OrderId} not found"));
+
+            order.Status = request.Status;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail(new Error($"Failed to update order {request.OrderId}"));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}

LiteCharms.Features/Shop/Orders/Commands/UpdateOrderStatusCommand.cs

@@ -0,0 +1,31 @@
+using LiteCharms.Features.Shop;
+using LiteCharms.Models;
+
+namespace LiteCharms.Features.Orders.Commands;
+
+public class UpdateOrderStatusCommand : IRequest<Result>
+{
+    public Guid OrderId { get; set; }
+
+    public OrderStatus Status { get; set; }
+
+    public string? Note { get; set; }
+
+    private UpdateOrderStatusCommand(Guid orderId, OrderStatus status, string? note)
+    {
+        OrderId = orderId;
+        Status = status;
+        Note = note;
+    }
+
+    public static UpdateOrderStatusCommand Create(Guid orderId, OrderStatus status, string? note)
+    {
+        if (orderId == Guid.Empty)
+            throw new ArgumentException("OrderId is required.", nameof(orderId));
+
+        if (!Enum.IsDefined(typeof(OrderStatus), status))
+            throw new ArgumentException("Invalid order status.", nameof(status));
+
+        return new(orderId, status, note);
+    }
+}