using Modules.Library.Domain.Entities.Genre;
using Modules.Library.Domain.Exceptions.Genre;
using Modules.Library.Domain.Gateways;

namespace Modules.Library.Domain.Interactors;

public class GenreInteractor(IGenreGateway gateway)
{
    public async Task<Guid> Create(string name)
    {
        if (string.IsNullOrWhiteSpace(name)) throw new ArgumentNullException(name);
        if (await gateway.GetFirstOrDefaultWhere(q => q.Name == name) != null) throw new GenreIsAlreadyExistException();
        var newGenre = new Genre(name);
        return await gateway.AddAsync(newGenre);
    }

    public async Task Edit(Guid genreId, string name)
    {
        if (string.IsNullOrWhiteSpace(name)) throw new ArgumentNullException(name);
        var genre = await gateway.GetByIdAsync(genreId);
        if (await gateway.GetFirstOrDefaultWhere(q => q.Name == name) != null) throw new GenreWithSameNameIsAlreadyExistException();
        genre.SetName(name);
        if (!await gateway.UpdateAsync(genre)) throw new Exception("Save unsuccessfull");
    }


    public async Task Delete(Guid genreId)
    {
        var genre = await gateway.GetByIdAsync(genreId);
        //await gateway.DeleteAsync(genre);
        if (genre.Deleted) throw new Exception("AlreadyDeleted");
        genre.SetDeleted();
        if (!await gateway.UpdateAsync(genre)) throw new Exception("Save unsuccessfull");
    }
}