Acme.BookStore.Application/Authors/AuthorAppService.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Acme.BookStore.Permissions;
using Microsoft.AspNetCore.Authorization;
using Volo.Abp.Application.Dtos;
using Volo.Abp.Domain.Repositories;

namespace Acme.BookStore.Authors
{
    [Authorize(BookStorePermissions.Authors.Default)]
    public class AuthorAppService : BookStoreAppService, IAuthorAppService
    {
        private readonly IAuthorRepository _authorRepository;
        private readonly AuthorManager _authorManager;

        public AuthorAppService(
            IAuthorRepository authorRepository,
            AuthorManager authorManager)
        {
            _authorRepository = authorRepository;
            _authorManager = authorManager;
        }

        public async Task<AuthorDto> GetAsync(Guid id)
        {
            var author = await _authorRepository.GetAsync(id);
            return ObjectMapper.Map<Author, AuthorDto>(author);
        }

        public async Task<PagedResultDto<AuthorDto>> GetListAsync(GetAuthorListDto input)
        {
            if (input.Sorting.IsNullOrWhiteSpace())
            {
                input.Sorting = nameof(Author.Name);
            }

            var authors = await _authorRepository.GetListAsync(
                input.SkipCount,
                input.MaxResultCount,
                input.Sorting,
                input.Filter
            );

            var totalCount = input.Filter == null
                ? await _authorRepository.CountAsync()
                : await _authorRepository.CountAsync(author => author.Name.Contains(input.Filter));

            return new PagedResultDto<AuthorDto>(
                totalCount,
                ObjectMapper.Map<List<Author>, List<AuthorDto>>(authors)
            );
        }

        [Authorize(BookStorePermissions.Authors.Create)]
        public async Task<AuthorDto> CreateAsync(CreateAuthorDto input)
        {
            var author = await _authorManager.CreateAsync(
                input.Name,