using System;
using System.Threading;
using System.Threading.Tasks;
using HN.Domain;
using MediatR;

namespace HN.Application {
    public class AddLinkCommand : IRequest<Guid>
    {
        public string Url { get; set; }
    }

    public class AddLinkCommandHandler : IRequestHandler<AddLinkCommand, Guid>
    {
        private readonly ILinkRepository _repository;

        public AddLinkCommandHandler(ILinkRepository repository)
        {
            this._repository = repository;
        }

        public async Task<Guid> Handle(AddLinkCommand request, CancellationToken cancellationToken)
        {
            var link = new Link(request.Url);

            await this._repository.AddAsync(link);

            return link.Id;
        }
    }
}