using AutoMapper;
using Diligent.WebAPI.Business.MappingProfiles;
using Diligent.WebAPI.Business.Services;
using Diligent.WebAPI.Contracts.DTOs.Ad;
using Diligent.WebAPI.Contracts.DTOs.Applicant;
using Diligent.WebAPI.Contracts.Exceptions;
using Diligent.WebAPI.Data.Entities;
using Microsoft.Extensions.Logging;

namespace Diligent.WebAPI.Tests.Services
{
    public class ApplicantServiceTests
    {
        private readonly IMapper _mapper;
        private ILogger<ApplicantService> _logger = Substitute.For<ILogger<ApplicantService>>();
        private readonly List<Applicant> _applicants;
        private readonly List<Ad> _ads;
        public ApplicantServiceTests()
        {
            _applicants = MockData.GetListOfApplicants();

            _ads = MockData.GetListOfAds();

            // configure mapper
            var configuration = new MapperConfiguration(cfg => cfg.AddProfiles(
                new List<Profile>
            {
                new ApplicantMappingProfile(),
                new AdMappingProfile(),
                new SelectionProcessMappingProfile()
            }));
            _mapper = new Mapper(configuration);
        }

        [Fact]
        public async Task GetFilteredApplicants_ShouldReturnListOfApplicants_Always()
        {
            var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);

            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            var filterDto = new ApplicantFilterDto();

            var result = await applicantService.GetFilteredApplicants(filterDto);

            Assert.Equal(_applicants.Count,result.Total);
        }

        [Fact]
        public async Task GetById_ShouldReturnApplicant_WhenApplicantExist()
        {
            var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            var result = await applicantService.GetById(1);

            result.Should().BeEquivalentTo(_mapper.Map<ApplicantViewDto>(_applicants[0]));
        }

        [Fact]
        public async Task GetById_ShouldThrowEntityNotFooundException_WhenApplicantDontExist()
        {
            var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            await Assert.ThrowsAsync<EntityNotFoundException>(async () => await applicantService.GetById(1000));
        }

        //[Fact]
        //public async Task CreateApplicant_ShouldAddEntityIntoDatabase_Always()
        //{
        //    var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
        //    ApplicantService applicantService = new(databaseContext, _mapper, _logger);

        //    ApplicantCreateDto applicantCreateDto = new()
        //    {
        //        ApplicationChannel = "Facebook",
        //        BitBucketLink = null,
        //        CV = "link",
        //        Email = "some@mail.com",
        //        Experience = 1,
        //        FirstName = "Meris",
        //        LastName = "Ahmatovic",
        //        GithubLink = null,
        //        LinkedlnLink = null,
        //        PhoneNumber = "432424",
        //        Position = ".NET Developer",
        //        TypeOfEmployment = TypesOfEmployment.Intership.ToString()
        //    };

        //    await applicantService.CreateApplicant(applicantCreateDto);

        //    var filterDto = new ApplicantFilterDto
        //    {
        //        CurrentPage = 1,
        //        PageSize = 4
        //    };

        //    var result = await applicantService.GetFilteredApplicants(filterDto);

        //    Assert.Equal(2, result.Total);
        //}

        [Fact]
        public async Task DeleteApplicant_ShouldDeleteApplicant_WhenApplicantExist()
        {
            var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            await applicantService.DeleteApplicant(1);

            var filterDto = MockData.GetApplicantFilters();

            var applicants = await applicantService.GetFilteredApplicants(filterDto);

            Assert.Empty(applicants.Items);
        }

        [Fact]
        public async Task DeleteApplicant_ShouldThrowEntityNotFooundException_WhenApplicantDontExist()
        {
            var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            await Assert.ThrowsAsync<EntityNotFoundException>(async () => await applicantService.DeleteApplicant(1000));
        }

        //[Fact]
        //public async Task UpdateApplicant_ShouldUpdateApplicant_WhenApplicantExist()
        //{
        //    var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
        //    ApplicantService applicantService = new(databaseContext, _mapper, _logger);

        //    ApplicantUpdateDto applicantUpdateDto = new()
        //    {
        //        ApplicationChannel = "Instagram",
        //        BitBucketLink = null,
        //        CV = "link",
        //        Email = "some@mail.com",
        //        Experience = 1,
        //        FirstName = "Dzenis",
        //        LastName = "Hadzifejzovic",
        //        GithubLink = null,
        //        LinkedlnLink = null,
        //        PhoneNumber = "432424",
        //        Position = "React Developer"
        //    };

        //    await applicantService.UpdateApplicant(1, applicantUpdateDto);
        //    var applicant = await applicantService.GetById(1);

        //    Assert.Equal(applicant.Position, applicantUpdateDto.Position);
        //}

        [Fact]
        public async Task GetAllAdsApplicants_ShouldReturnListOfAdApplicants_Always()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            var filterDto = MockData.GetApplicantFilters();

            var result = await applicantService.GetAllAdsApplicants(filterDto);

            result.Should().BeEquivalentTo(_mapper.Map<List<AdApplicantsViewDto>>(_ads));
        }

        [Fact]
        public async Task GetApplicantWithSelectionProcessesById_ShouldReturnApplicant_WhenApplicantExists()
        {
            var databaseContext = await Helpers<Applicant>.GetDatabaseContext(_applicants);
            ApplicantService applicantService = new(databaseContext, _mapper, _logger);

            var result = await applicantService.GetApplicantWithSelectionProcessesById(1);
            var processes = result.SelectionProcesses;

            processes.Should().HaveCount(3);
            result.Should().BeEquivalentTo(_mapper.Map<ApplicantViewDto>(_applicants[0]));
        }


    }
}