Retructured solution

2026-05-13 20:06:24 +02:00
parent 26075cd9a7
commit a42c51d7b2
231 changed files with 1618 additions and 1408 deletions
@@ -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);
+    }
+}
@@ -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));
+        }
+    }
+}
@@ -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));
+        }
+    }
+}
@@ -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);
+    }
+}
@@ -0,0 +1,17 @@
+using LiteCharms.Features.Shop.Customers.Entities;
+using LiteCharms.Features.Shop.Quotes.Entities;
+using LiteCharms.Features.Shop.ShoppingCarts.Entities;
+
+namespace LiteCharms.Features.Shop.Orders.Entities;
+
+[EntityTypeConfiguration<OrderConfiguration, Order>]
+public class Order : Models.Order
+{
+    public virtual ICollection<OrderRefund>? Refunds { get; set; }
+
+    public virtual Customer? Customer { get; set; }
+
+    public virtual Quote? Quote { get; set; }
+
+    public virtual ShoppingCart? ShoppingCart { get; set; }
+}
@@ -0,0 +1,25 @@
+namespace LiteCharms.Features.Shop.Orders.Entities;
+
+public class OrderConfiguration : IEntityTypeConfiguration<Order>
+{
+    public void Configure(EntityTypeBuilder<Order> builder)
+    {
+        builder.ToTable(nameof(Order));
+
+        builder.HasKey(f => f.Id);
+        builder.Property(f => f.CreatedAt).ValueGeneratedOnAdd().HasDefaultValueSql("now()");
+        builder.Property(f => f.UpdatedAt).IsRequired(false);
+        builder.Property(f => f.CustomerId).IsRequired();
+        builder.Property(f => f.Status).HasConversion<int>().IsRequired();
+        builder.Property(f => f.Requirements).HasColumnType("jsonb").IsRequired(false);
+        builder.Property(f => f.Notes).HasColumnType("jsonb").IsRequired(false);
+        builder.Property(f => f.Terms).HasColumnType("jsonb").IsRequired(false);
+        builder.Property(f => f.InvoiceUrl).IsRequired(false).HasMaxLength(2048);
+
+        builder.HasOne(o => o.Customer)
+           .WithMany(c => c.Orders)
+           .HasForeignKey(o => o.CustomerId)
+           .IsRequired()
+           .OnDelete(DeleteBehavior.Restrict);
+    }
+}
@@ -0,0 +1,7 @@
+namespace LiteCharms.Features.Shop.Orders.Entities;
+
+[EntityTypeConfiguration<OrderRefundConfiguration, OrderRefund>]
+public class OrderRefund : Models.OrderRefund
+{
+    public virtual Order? Order { get; set; }
+}
@@ -0,0 +1,21 @@
+namespace LiteCharms.Features.Shop.Orders.Entities;
+
+public class OrderRefundConfiguration : IEntityTypeConfiguration<OrderRefund>
+{
+    public void Configure(EntityTypeBuilder<OrderRefund> builder)
+    {
+        builder.ToTable(nameof(OrderRefund));
+
+        builder.HasKey(f => f.Id);
+        builder.Property(f => f.CreatedAt).ValueGeneratedOnAdd().HasDefaultValueSql("now()");
+        builder.Property(f => f.OrderId).IsRequired();
+        builder.Property(f => f.Reason).IsRequired();
+        builder.Property(f => f.Amount).IsRequired().HasPrecision(18, 2);
+
+        builder.HasOne(r => r.Order)
+               .WithMany(o => o.Refunds)
+               .HasForeignKey(r => r.OrderId)
+               .IsRequired()
+               .OnDelete(DeleteBehavior.Cascade);
+    }
+}
@@ -0,0 +1,22 @@
+namespace LiteCharms.Features.Shop.Orders.Models;
+
+public class Order
+{
+    public Guid Id { get; set; }
+
+    public DateTimeOffset CreatedAt { get; set; }
+
+    public DateTimeOffset? UpdatedAt { get; set; }
+
+    public Guid CustomerId { get; set; }
+
+    public OrderStatus Status { get; set; }
+
+    public string[]? Requirements { get; set; }
+
+    public string[]? Notes { get; set; }
+
+    public string[]? Terms { get; set; }
+
+    public string? InvoiceUrl { get; set; }
+}
@@ -0,0 +1,14 @@
+namespace LiteCharms.Features.Shop.Orders.Models;
+
+public class OrderRefund
+{
+    public Guid Id { get; set; }
+
+    public DateTimeOffset CreatedAt { get; set; }
+
+    public Guid OrderId { get; set; }
+
+    public string? Reason { get; set; }
+
+    public decimal Amount { get; set; }
+}
@@ -0,0 +1,18 @@
+using LiteCharms.Features.Shop.Orders.Models;
+
+namespace LiteCharms.Features.Orders.Queries;
+
+public class GetCustomerOrdersQuery : IRequest<Result<Order[]>>
+{
+    public Guid CustomerId { get; }
+
+    private GetCustomerOrdersQuery(Guid customerId) => CustomerId = customerId;
+
+    public static GetCustomerOrdersQuery Create(Guid customerId)
+    {
+        if (customerId == Guid.Empty)
+            throw new ArgumentException("CustomerId is required.", nameof(customerId));
+
+        return new(customerId);
+    }
+}
@@ -0,0 +1,27 @@
+using LiteCharms.Features.Shop.Orders.Models;
+
+namespace LiteCharms.Features.Orders.Queries;
+
+public class GetOrderRefundQuery : IRequest<Result<OrderRefund>>
+{
+    public Guid OrderId { get; set; }
+
+    public Guid OrderRefundId { get; set; }
+
+    private GetOrderRefundQuery(Guid orderId, Guid orderRefundId)
+    {
+        OrderId = orderId;
+        OrderRefundId = orderRefundId;
+    }
+
+    public static GetOrderRefundQuery Create(Guid orderId, Guid orderRefundId)
+    {
+        if (orderId == Guid.Empty)
+            throw new ArgumentException("OrderId is required.", nameof(orderId));
+
+        if (orderRefundId == Guid.Empty)
+            throw new ArgumentException("OrderRefundId is required.", nameof(orderRefundId));
+
+        return new(orderId, orderRefundId);
+    }
+}
@@ -0,0 +1,30 @@
+using LiteCharms.Features.Shop.Orders.Models;
+
+namespace LiteCharms.Features.Orders.Queries;
+
+public class GetOrdersQuery : IRequest<Result<Order[]>>
+{
+    public DateOnly From { get; set; }
+
+    public DateOnly To { get; set; }
+
+    public int MaxRecords { get; set; }
+
+    private GetOrdersQuery(DateOnly from, DateOnly to, int maxRecords = 1000)
+    {
+        From = from;
+        To = to;
+        MaxRecords = maxRecords;
+    }
+
+    public static GetOrdersQuery Create(DateOnly from, DateOnly to, int maxRecords = 1000)
+    {
+        if (from > to)
+            throw new ArgumentException("From date cannot be greater than To date.");
+
+        if(maxRecords <= 0)
+            throw new ArgumentException("MaxRecords must be a positive integer.");
+
+        return new(from, to, maxRecords);
+    }
+}
@@ -0,0 +1,32 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Orders.Models;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Orders.Queries.Handlers;
+
+public class GetCustomerOrdersQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetCustomerOrdersQuery, Result<Order[]>>
+{
+    public async ValueTask<Result<Order[]>> Handle(GetCustomerOrdersQuery request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if(!await context.Customers.AsNoTracking().AnyAsync(c => c.Id == request.CustomerId, cancellationToken))
+                return Result.Fail<Order[]>(new Error($"Customer with Id {request.CustomerId} does not exist."));
+
+            var orders = await context.Orders.AsNoTracking()
+                .OrderByDescending(o => o.CreatedAt)
+                .Where(o => o.CustomerId == request.CustomerId)
+                .ToArrayAsync(cancellationToken);
+
+            return orders?.Length > 0
+                ? Result.Ok(orders.Select(o => o.ToModel()).ToArray())
+                : Result.Fail<Order[]>(new Error($"No orders found for customer with Id {request.CustomerId}."));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<Order[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
@@ -0,0 +1,27 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Orders.Models;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Orders.Queries.Handlers;
+
+public class GetOrderRefundQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetOrderRefundQuery, Result<OrderRefund>>
+{
+    public async ValueTask<Result<OrderRefund>> Handle(GetOrderRefundQuery request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var refund = await context.OrderRefunds.AsNoTracking()
+                .FirstOrDefaultAsync(r => r.OrderId == request.OrderId && r.Id == request.OrderRefundId, cancellationToken);
+            
+            return refund is not null
+                ? Result.Ok(refund.ToModel())
+                : Result.Fail<OrderRefund>(new Error($"Refund {request.OrderRefundId} not found for the given OrderId: {request.OrderId}"));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<OrderRefund>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
@@ -0,0 +1,34 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Orders.Models;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Orders.Queries.Handlers;
+
+public class GetOrdersQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetOrdersQuery, Result<Order[]>>
+{
+    public async ValueTask<Result<Order[]>> Handle(GetOrdersQuery request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            var fromDate = request.From.ToDateTime(TimeOnly.MinValue);
+            var toDate = request.To.ToDateTime(TimeOnly.MaxValue);
+
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var orders = await context.Orders
+                .AsNoTracking()
+                .OrderByDescending(o => o.CreatedAt)
+                .Where(o => o.CreatedAt >= fromDate && o.CreatedAt <= toDate)
+                .Take(request.MaxRecords)
+                .ToArrayAsync(cancellationToken);   
+
+            return orders?.Length > 0
+                ? Result.Ok(orders.Select(o => o.ToModel()).ToArray())
+                : Result.Fail<Order[]>(new Error($"No orders found for the specified date range {request.From} - {request.To}."));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<Order[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
@@ -0,0 +1,39 @@
+using LiteCharms.Features.Shop.Orders.Refunds.Commands;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Shop.Orders.Refunds.Commands.Handlers;
+
+public class RefundCustomerCommandHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<RefundCustomerCommand, Result<Guid>>
+{
+    public async ValueTask<Result<Guid>> Handle(RefundCustomerCommand request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            if(!await context.Orders.AnyAsync(o => o.Id == request.OrderId, cancellationToken))
+                return Result.Fail<Guid>(new Error($"Order with Id: {request.OrderId} does not exist"));
+
+            if (!await context.Customers.AnyAsync(c => c.Id == request.CustomerId, cancellationToken))
+                return Result.Fail<Guid>(new Error($"Customer with Id: {request.CustomerId} does not exist"));
+
+            if(!await context.Orders.AnyAsync(o => o.Id == request.OrderId && o.CustomerId == request.CustomerId, cancellationToken))
+                return Result.Fail<Guid>(new Error($"Order with Id: {request.OrderId} does not belong to Customer with Id: {request.CustomerId}"));
+
+            var refund = context.OrderRefunds.Add(new Entities.OrderRefund
+            {
+                OrderId = request.OrderId,
+                Reason = request.Reason,
+                Amount = request.Amount
+            });
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok(refund.Entity.Id)
+                : Result.Fail<Guid>(new Error($"Failed to create refund for OrderId: {request.OrderId}"));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<Guid>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
@@ -0,0 +1,31 @@
+using LiteCharms.Features.Shop.Orders.Refunds.Commands;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Shop.Orders.Refunds.Commands.Handlers;
+
+public class UpdateOrderRefundCommandHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<UpdateOrderRefundCommand, Result>
+{
+    public async ValueTask<Result> Handle(UpdateOrderRefundCommand request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var refund = await context.OrderRefunds.FirstOrDefaultAsync(r => r.Id == request.OrderRefundId, cancellationToken);
+
+            if (refund is null)
+                return Result.Fail($"Order refund not found with id {request.OrderRefundId}");
+
+            refund.Reason = request.Reason;
+            refund.Amount = request.Amount;
+
+            return await context.SaveChangesAsync(cancellationToken) > 0
+                ? Result.Ok()
+                : Result.Fail($"Failed to update order refund {request.OrderRefundId}");
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
@@ -0,0 +1,38 @@
+namespace LiteCharms.Features.Shop.Orders.Refunds.Commands;
+
+public class RefundCustomerCommand : IRequest<Result<Guid>>
+{
+    public Guid OrderId { get; set; }
+
+    public Guid CustomerId { get; set; }
+
+    public string? Reason { get; set; }
+
+    public decimal Amount { get; set; }
+
+    private RefundCustomerCommand(Guid orderId, Guid customerId, string? reason, decimal amount)
+    {
+        OrderId = orderId;
+        CustomerId = customerId;
+        Reason = reason;
+        Amount = amount;
+        CustomerId = customerId;
+    }
+
+    public static RefundCustomerCommand Create(Guid orderId, Guid customerId, string? reason, decimal amount)
+    {
+        if (orderId == Guid.Empty)
+            throw new ArgumentException("OrderId is required", nameof(orderId));
+
+        if (customerId == Guid.Empty)
+            throw new ArgumentException("CustomerId is required", nameof(customerId));
+
+        if (amount <= 0)
+            throw new ArgumentException("Amount must be greater than zero", nameof(amount));
+
+        if (string.IsNullOrWhiteSpace(reason))
+            throw new ArgumentException("Reason is required", nameof(reason));
+
+        return new(orderId, customerId, reason, amount);
+    }
+}
@@ -0,0 +1,28 @@
+namespace LiteCharms.Features.Shop.Orders.Refunds.Commands;
+
+public class UpdateOrderRefundCommand : IRequest<Result>
+{
+    public Guid OrderRefundId { get; set; }
+
+    public string? Reason { get; set; }
+
+    public decimal Amount { get; set; }
+
+    private UpdateOrderRefundCommand(Guid orderRefundId, string? reason, decimal amount)
+    {
+        OrderRefundId = orderRefundId;
+        Reason = reason;
+        Amount = amount;
+    }
+
+    public static UpdateOrderRefundCommand Create(Guid orderRefundId, string? reason, decimal amount)
+    {
+        if (orderRefundId == Guid.Empty)
+            throw new ArgumentException("Order refund id is required.", nameof(orderRefundId));
+
+        if (string.IsNullOrWhiteSpace(reason))
+            throw new ArgumentException("Refund update reason is required");
+        
+        return new(orderRefundId, reason, amount);
+    }
+}
@@ -0,0 +1,18 @@
+using LiteCharms.Features.Shop.Orders.Models;
+
+namespace LiteCharms.Features.Shop.Orders.Refunds.Queries;
+
+public class GetCustomerRefundsQuery : IRequest<Result<OrderRefund[]>>
+{
+    public Guid CustomerId { get; set; }
+
+    private GetCustomerRefundsQuery(Guid customerId) => CustomerId = customerId;
+
+    public static GetCustomerRefundsQuery Create(Guid customerId)
+    {
+        if (customerId == Guid.Empty)
+            throw new ArgumentException("CustomerId is required.", nameof(customerId));
+
+        return new(customerId);
+    }
+}
@@ -0,0 +1,18 @@
+using LiteCharms.Features.Shop.Orders.Models;
+
+namespace LiteCharms.Features.Shop.Orders.Refunds.Queries;
+
+public class GetRefundQuery : IRequest<Result<OrderRefund>>
+{
+    public Guid OrderRefundId { get; set; }
+
+    private GetRefundQuery(Guid orderRefundId) => OrderRefundId = orderRefundId;
+
+    public static GetRefundQuery Create(Guid orderRefundId)
+    {
+        if(orderRefundId == Guid.Empty)
+            throw new ArgumentException("Customer ID is required.", nameof(orderRefundId));
+
+        return new(orderRefundId);
+    }
+}
@@ -0,0 +1,32 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Orders.Models;
+using LiteCharms.Features.Shop.Orders.Refunds.Queries;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Shop.Orders.Refunds.Queries.Handlers;
+
+public class GetCustomerRefundsQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetCustomerRefundsQuery, Result<OrderRefund[]>>
+{
+    public async ValueTask<Result<OrderRefund[]>> Handle(GetCustomerRefundsQuery 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<OrderRefund[]>(new Error($"Customer with Id {request.CustomerId} does not exist."));
+
+            var refunds = await context.OrderRefunds.AsNoTracking().AsSplitQuery()
+                .OrderByDescending(o => o.CreatedAt)
+                .Where(r => r.Order!.CustomerId == request.CustomerId).ToArrayAsync(cancellationToken);
+
+            return refunds?.Length > 0 
+                ? Result.Ok(refunds.Select(r => r.ToModel()).ToArray()) 
+                : Result.Fail<OrderRefund[]>(new Error($"No refunds found for customer with Id {request.CustomerId}."));
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<OrderRefund[]>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}
@@ -0,0 +1,27 @@
+using LiteCharms.Extensions;
+using LiteCharms.Features.Shop.Orders.Models;
+using LiteCharms.Features.Shop.Orders.Refunds.Queries;
+using LiteCharms.Features.Shop.Postgres;
+
+namespace LiteCharms.Features.Shop.Orders.Refunds.Queries.Handlers;
+
+public class GetRefundQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetRefundQuery, Result<OrderRefund>>
+{
+    public async ValueTask<Result<OrderRefund>> Handle(GetRefundQuery request, CancellationToken cancellationToken)
+    {
+		try
+		{
+            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
+
+            var refund = await context.OrderRefunds.AsNoTracking().FirstOrDefaultAsync(r => r.Id == request.OrderRefundId, cancellationToken);
+
+            return refund is not null
+                ? Result.Ok(refund.ToModel())
+                : Result.Fail<OrderRefund>($"Order refund could not be found with id {request.OrderRefundId}");
+        }
+		catch (Exception ex)
+		{
+            return Result.Fail<OrderRefund>(new Error(ex.Message).CausedBy(ex));
+        }
+    }
+}