Khwezi Mngoma
31 lines
1.4 KiB
C#
31 lines
1.4 KiB
C#
using LiteCharms.Extensions;
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using LiteCharms.Features.Shop.Postgres;
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using LiteCharms.Features.Shop.ShoppingCarts.Models;
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using LiteCharms.Features.ShoppingCarts.Queries;
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namespace LiteCharms.Features.ShoppingCarts.Queries.Handlers;
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public class GetCustomerShoppingCartsQueryHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<GetCustomerShoppingCartsQuery, Result<ShoppingCart[]>>
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{
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public async ValueTask<Result<ShoppingCart[]>> Handle(GetCustomerShoppingCartsQuery request, CancellationToken cancellationToken)
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{
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try
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{
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using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
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if (!await context.Customers.AnyAsync(c => c.Id == request.CustomerId, cancellationToken))
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return Result.Fail<ShoppingCart[]>(new Error($"Customer with Id {request.CustomerId} does not exist."));
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var shoppingCarts = await context.ShoppingCarts.Where(sc => sc.CustomerId == request.CustomerId).ToArrayAsync(cancellationToken);
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return shoppingCarts?.Length > 0
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? Result.Ok(shoppingCarts.Select(c => c.ToModel()).ToArray())
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: Result.Fail<ShoppingCart[]>(new Error($"No shopping carts found for customer with Id {request.CustomerId}."));
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}
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catch (Exception ex)
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{
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return Result.Fail<ShoppingCart[]>(new Error(ex.Message).CausedBy(ex));
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}
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}
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}
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