using System;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.Extensions.DependencyInjection;
using Xunit;
using Shouldly;
using Volo.Abp.Application.Dtos;

namespace Volo.Abp.Identity
{
    public class IdentityRoleAppService_Tests: AbpIdentityApplicationTestBase
    {
        private readonly IIdentityRoleAppService _roleAppService;
        private readonly IIdentityRoleRepository _roleRepository;

        public IdentityRoleAppService_Tests()
        {
            _roleAppService = ServiceProvider.GetRequiredService<IIdentityRoleAppService>();
            _roleRepository = ServiceProvider.GetRequiredService<IIdentityRoleRepository>();
        }

        [Fact]
        public async Task GetAsync()
        {
            //Arrange

            var moderator = await GetRoleAsync("moderator");

            //Act

            var result = await _roleAppService.GetAsync(moderator.Id);

            //Assert

            result.Id.ShouldBe(moderator.Id);
        }

        [Fact]
        public async Task GetListAsync()
        {
            //Act

            var result = await _roleAppService.GetListAsync(new GetIdentityRolesInput());

            //Assert

            result.TotalCount.ShouldBeGreaterThan(0);
            result.Items.Count.ShouldBeGreaterThan(0);
        }

        [Fact]
        public async Task CreateAsync()
        {
            //Arrange

            var input = new IdentityRoleCreateDto
            {
                Name = Guid.NewGuid().ToString("N").Left(8)
            };

            //Act

            var result = await _roleAppService.CreateAsync(input);

            //Assert

            result.Id.ShouldNotBe(Guid.Empty);
            result.Name.ShouldBe(input.Name);

            var role = await _roleRepository.GetAsync(result.Id);
            role.Name.ShouldBe(input.Name);
        }

        [Fact]
        public async Task UpdateAsync()
        {
            //Arrange

            var moderator = await GetRoleAsync("moderator");

            var input = new IdentityRoleUpdateDto
            {
                Name = Guid.NewGuid().ToString("N").Left(8)
            };

            //Act

            var result = await _roleAppService.UpdateAsync(moderator.Id, input);

            //Assert

            result.Id.ShouldBe(moderator.Id);
            result.Name.ShouldBe(input.Name);

            var updatedRole = await _roleRepository.GetAsync(moderator.Id);
            updatedRole.Name.ShouldBe(input.Name);
        }

        [Fact]
        public async Task DeleteAsync()
        {
            //Arrange

            var moderator = await GetRoleAsync("moderator");

            //Act

            await _roleAppService.DeleteAsync(moderator.Id);

            //Assert

            (await FindRoleAsync("moderator")).ShouldBeNull();
        }

        private async Task<IdentityRole> GetRoleAsync(string roleName)
        {
            return (await _roleRepository.GetListAsync()).First(u => u.Name == roleName);
        }

        private async Task<IdentityRole> FindRoleAsync(string roleName)
        {
            return (await _roleRepository.GetListAsync()).FirstOrDefault(u => u.Name == roleName);
        }
    }
}