Completed initial database design

Sealed qualifying public classes
Migrated database changes

LiteCharms.Features.MidrandBooks/Orders/OrderService.cs

@@ -1,10 +1,12 @@
 using LiteCharms.Features.MidrandBooks.Abstractions;
+using LiteCharms.Features.MidrandBooks.Extensions;
 using LiteCharms.Features.MidrandBooks.Orders.Models;
 using LiteCharms.Features.MidrandBooks.Postgres;
+using LiteCharms.Features.Models;
 
 namespace LiteCharms.Features.MidrandBooks.Orders;
 
-public class OrderService(IDbContextFactory<MidrandBooksDbContext> contextFactory) : IService
+public sealed class OrderService(IDbContextFactory<MidrandBooksDbContext> contextFactory) : IService
 {
     public async ValueTask<Result<long>> CreateOrderAsync(long customerId, CreateOrder request, CancellationToken cancellationToken = default)
     {
@@ -106,4 +108,356 @@ public class OrderService(IDbContextFactory<MidrandBooksDbContext> contextFactor
             return Result.Fail(new Error(ex.Message).CausedBy(ex));
         }
     }
+
+    public async ValueTask<Result> RemoveItemFromOrderAsync(long orderId, long orderItemId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var orderItem = await context.OrderItems.FirstOrDefaultAsync(oi => oi.Id == orderItemId && oi.OrderId == orderId, cancellationToken);
+
+            if (orderItem is null)
+                return Result.Fail("Order item not found.");
+
+            context.OrderItems.Remove(orderItem);
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to remove item from order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> ClearOrderItemasAsync(long orderId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var orderItems = context.OrderItems.Where(oi => oi.OrderId == orderId);
+
+            context.OrderItems.RemoveRange(orderItems);
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to clear order items.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> CancelOrderAsync(long orderId, CancellationToken cancellationToken = default) =>
+        await UpdateOrderStatusAsync(orderId, OrderStatus.Cancelled, cancellationToken);
+
+    public async ValueTask<Result<Order>> GetOrderAsync(long orderId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var order = await context.Orders.AsNoTracking().FirstOrDefaultAsync(o => o.Id == orderId, cancellationToken);
+
+            return order is not null
+                ? Result.Ok(order.ToModel())
+                : Result.Fail<Order>("Order not found.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Order>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<Order[]>> GetOrdersByCustomerAsync(long customerId, 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<Order[]>("Customer not found.");
+
+            var orders = await context.Orders
+                .AsNoTracking()
+                .Where(o => o.CustomerId == customerId)
+                .ToListAsync(cancellationToken);
+
+            return Result.Ok(orders.Select(o => o.ToModel()).ToArray());
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Order[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<Order[]>> GetOrdersAsync(DateRange range, int index, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var orders = await context.Orders
+                .AsNoTracking()
+                .Where(o => o.CreatedAt >= range.From.ToDateTime(TimeOnly.MinValue) && o.CreatedAt <= range.To.ToDateTime(TimeOnly.MaxValue))
+                .Skip(index * range.MaxRecords)
+                .ToListAsync(cancellationToken);
+
+            return Result.Ok(orders.Select(o => o.ToModel()).ToArray());
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Order[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> UpdateOrderStatusAsync(long orderId, OrderStatus newStatus, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var order = await context.Orders.FirstOrDefaultAsync(o => o.Id == orderId, cancellationToken);
+
+            if (order is null)
+                return Result.Fail("Order not found.");
+
+            order.UpdatedAt = DateTime.UtcNow;
+            order.Status = newStatus;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to update order status.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> AddShippingToOrderAsync(long orderId, CreateShipping 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("Order not found.");
+
+            if(!await context.Addresses.AnyAsync(a => a.Id == request.AddressId, cancellationToken))
+                return Result.Fail("Address not found.");
+
+            if(!await context.ShippingProviders.AnyAsync(sp => sp.Id == request.ShippingProviderId && sp.Enabled, cancellationToken))
+                return Result.Fail("Shipping provider not found or disabled.");
+
+            if(await context.Shippings.AnyAsync(s => s.OrderId == orderId, cancellationToken))
+                return Result.Fail("Shipping already exists for this order.");
+
+            var shipping = context.Shippings.Add(new Entities.Shipping
+            {
+                OrderId = orderId,
+                AddressId = request.AddressId,
+                ShippingProviderId = request.ShippingProviderId,
+                Status = ShippingStatuses.Pending,
+                TrackingNumber = request.TrackingNumber
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to add shipping to order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> UpdateShippingStatusAsync(long orderId, ShippingStatuses newStatus, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var shipping = await context.Shippings.FirstOrDefaultAsync(s => s.OrderId == orderId, cancellationToken);
+
+            if (shipping is null)
+                return Result.Fail("Shipping not found for this order.");
+
+            shipping.UpdatedAt = DateTime.UtcNow;
+            shipping.Status = newStatus;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to update shipping status.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async Task<Result<Shipping>> GetShippingByOrderIdAsync(long orderId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var shipping = await context.Shippings
+                .AsNoTracking()
+                .FirstOrDefaultAsync(s => s.OrderId == orderId, cancellationToken);
+
+            return shipping is not null
+                ? Result.Ok(shipping.ToModel())
+                : Result.Fail<Shipping>("Shipping not found for this order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<Shipping>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async Task<Result> RemoveShippingFromOrderAsync(long orderId, long shippingId, 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("Order not found.");
+
+            var shipping = await context.Shippings.AsNoTracking()
+                .FirstOrDefaultAsync(s => s.OrderId == orderId && s.Id == shippingId, cancellationToken);
+
+            if (shipping is null)
+                return Result.Fail("Shipping not found for this order.");
+
+            context.Shippings.Remove(shipping);
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to remove shipping from order.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> UpdateShippingTrackingNumberAsync(long orderId, long shippingId, string trackingNumber, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var shipping = await context.Shippings.FirstOrDefaultAsync(s => s.OrderId == orderId && s.Id == shippingId, cancellationToken);
+
+            if (shipping is null)
+                return Result.Fail("Shipping not found for this order.");
+
+            shipping.UpdatedAt = DateTime.UtcNow;
+            shipping.TrackingNumber = trackingNumber;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to update shipping tracking number.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> CreateShippingProviderAsync(CreateShippingProvider request, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if(await context.ShippingProviders.AnyAsync(sp => sp.Type == request.Type, cancellationToken))
+                return Result.Fail("Shipping provider with the same type already exists.");
+
+            var shippingProvider = context.ShippingProviders.Add(new Entities.ShippingProvider
+            {
+                Name = request.Name,
+                Type = request.Type,
+                Price = request.Price,
+                TrackingUrl = request.TrackingUrl
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to create shipping provider.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<ShippingProvider[]>> GetShippingProvidersAsync(bool isEnabled, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var providers = await context.ShippingProviders.AsNoTracking().Where(sp => sp.Enabled == isEnabled)
+                .ToListAsync(cancellationToken);
+
+            return Result.Ok(providers.Select(sp => sp.ToModel()).ToArray());
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<ShippingProvider[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result<ShippingProvider>> GetShippingProviderAsync(long providerId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var provider = await context.ShippingProviders.AsNoTracking()
+                .FirstOrDefaultAsync(sp => sp.Id == providerId, cancellationToken);
+
+            return provider is not null
+                ? Result.Ok(provider.ToModel())
+                : Result.Fail<ShippingProvider>("Shipping provider not found.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail<ShippingProvider>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+
+    public async ValueTask<Result> UpdateShippingProviderAsync(UpdateShippingProvider request, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            await using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var provider = await context.ShippingProviders.FirstOrDefaultAsync(sp => sp.Id == request.ProviderId, cancellationToken);
+
+            if (provider is null)
+                return Result.Fail("Shipping provider not found.");
+
+            provider.UpdatedAt = DateTime.UtcNow;
+            provider.Enabled = request.Enabled;
+            provider.Name = request.Name;
+            provider.Price = request.Price;
+            provider.TrackingUrl = request.TrackingUrl;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail("Failed to update shipping provider status.");
+        }
+        catch (Exception ex)
+        {
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }       
 }