components/LiteCharms.Features/Customers/Commands/Handlers/UpdateCustomerCommandHandler.cs

using LiteCharms.Infrastructure.Database;

namespace LiteCharms.Features.Customers.Commands.Handlers;

public class UpdateCustomerCommandHandler(IDbContextFactory<ShopDbContext> contextFactory) : IRequestHandler<UpdateCustomerCommand, Result>
{
    public async ValueTask<Result> Handle(UpdateCustomerCommand request, CancellationToken cancellationToken)
    {
        try
        {
            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);

            var customer = await context.Customers.FirstOrDefaultAsync(c => c.Id == request.CustomerId, cancellationToken);

            if (customer is null)
                return Result.Fail(new Error($"Customer with ID {request.CustomerId} not found."));

            customer.Name = request.Name;
            customer.LastName = request.LastName;
            customer.Email = request.Email;
            customer.Company = request.Company;
            customer.Address = request.Address;
            customer.City = request.City;
            customer.Region = request.Region;
            customer.Country = request.Country;
            customer.PostalCode = request.PostalCode;
            customer.Phone = request.Phone;
            customer.Tax = request.Tax;
            customer.City = request.City;
            customer.Discord = request.Discord;
            customer.Slack = request.Slack;
            customer.LinkedIn = request.LinkedIn;
            customer.Whatsapp = request.Whatsapp;

            return await context.SaveChangesAsync(cancellationToken) > 0
                ? Result.Ok()
                : Result.Fail(new Error($"Failed to update the customer {request.CustomerId}."));
        }
        catch (Exception ex)
        {
            return Result.Fail(new Error(ex.Message).CausedBy(ex));
        }
    }
}