using Grand.Business.Core.Queries.Catalog;
using Grand.Domain.Data;
using Grand.Domain.Vendors;
using MediatR;

namespace Grand.Business.Catalog.Queries.Handlers
{
    public class GetVendorByIdQueryHandler : IRequestHandler<GetVendorByIdQuery, Vendor>
    {
        private readonly IRepository<Vendor> _vendorRepository;

        public GetVendorByIdQueryHandler(IRepository<Vendor> vendorRepository)
        {
            _vendorRepository = vendorRepository;
        }

        public Task<Vendor> Handle(GetVendorByIdQuery request, CancellationToken cancellationToken)
        {
            return string.IsNullOrWhiteSpace(request.Id) ? Task.FromResult<Vendor>(null) : _vendorRepository.GetByIdAsync(request.Id);
        }
    }
}
