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

namespace Diligent.WebAPI.Tests.Services
{
    public class AdServiceTests
    {
        private readonly IMapper _mapper;
        private readonly List<Ad> _ads = new List<Ad>();
        private readonly Ad _ad;
        private ITechnologyService _technologyService = Substitute.For<ITechnologyService>();
        private ILogger<AdService> _logger = Substitute.For<ILogger<AdService>>();
        private readonly List<Technology> _technologies = new List<Technology>();

        public AdServiceTests()
        {
            var configuration = new MapperConfiguration(cfg => cfg.AddProfiles(
                new List<Profile>
            {
                new AdMappingProfile(),
                new TechnologyMappingProfile()
            }));
            _mapper = new Mapper(configuration);

            _ad = new Ad
            {

                Id = 1,
                Title = "React Developer",
                MinimumExperience = 0,
                CreatedAt = DateTime.Now,
                ExpiredAt = DateTime.Now.AddDays(30),
                KeyResponsibilities = "KR|KR",
                Requirements = "R|R|R",
                Offer = "O|O",
                WorkHour = WorkHours.FullTime,
                EmploymentType = EmploymentTypes.Intership,
                Technologies = new List<Technology> 
                {
                    new Technology { TechnologyId = 1, Name = "React", TechnologyType = TechnologyTypes.Backend}
                }
            };

            _ads.Add(_ad);
            _ads.Add(new Ad 
            {
                Id = 2,
                Title = ".NET Developer",
                MinimumExperience = 0,
                CreatedAt = DateTime.Now.AddDays(-2),
                ExpiredAt = DateTime.Now.AddDays(-1),
                KeyResponsibilities = "KR|KR",
                Requirements = "R|R|R",
                Offer = "O|O",
                WorkHour = WorkHours.FullTime,
                EmploymentType = EmploymentTypes.Intership,
                Technologies = new List<Technology>
                {
                    new Technology { TechnologyId = 2, Name = ".NET", TechnologyType = TechnologyTypes.Frontend}
                }
            });

            _technologies.Add(new Technology
            {
                TechnologyId = 1,
                Name = ".NET"
            });
        }

        [Fact]
        public async Task GetAll_ShouldReturnListOfAds_WhenCalled()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            var result = await adService.GetAllAsync();

            //result.Should().BeEquivalentTo(_mapper.Map<List<AdResponseDto>>(_ads));
            Assert.Equal(result.Count, 1);
        }

        [Fact]
        public async Task GetById_ShouldReturnAd_WhenAdExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            var result = await adService.GetByIdAsync(1);

            result.Should().BeEquivalentTo(_mapper.Map<AdResponseDto>(_ad));
        }

        [Fact]
        public async Task GetById_ShouldThrowEntityNotFoundException_WhenAdDontExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            await Assert.ThrowsAsync<EntityNotFoundException>(async () => await adService.GetByIdAsync(1000));
        }

        [Fact]
        public async Task GetAdDetailsById_ShouldReturnAd_WhenAdExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            var result = await adService.GetAdDetailsByIdAsync(1);

            result.Should().BeEquivalentTo(_mapper.Map<AdDetailsResponseDto>(_ad));
        }

        [Fact]
        public async Task GetAdDetailsById_ShouldThrowEntityNotFoundException_WhenAdDontExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            await Assert.ThrowsAsync<EntityNotFoundException>(async () => await adService.GetAdDetailsByIdAsync(1000));
        }

        [Fact]
        public async Task GetArchiveAds_ShouldReturnListOfAds_WhenCalled()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            var result = await adService.GetArchiveAds();

            //result.Should().BeEquivalentTo(_mapper.Map<List<AdResponseDto>>(_ads));
            Assert.Equal(result.Count, 1);
        }

        [Fact]
        public async Task GetFilteredAds_ShouldReturnListOfAds_WhenCalled()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            var result = await adService.GetFilteredAdsAsync(new AdFilterDto
            {
                MinExperience = 0,
                MaxExperience = 10,
                EmploymentType = "Intership",
                WorkHour = "FullTime",
                Technologies = new string[]
                {
                    ".NET"
                }
            });

            Assert.Equal(result.Count, 1);
        }

        [Fact]
        public async Task CreateAd_ShouldAddAdIntoDatabase_WhenCalled()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);
            _technologyService.GetEntityByIdAsync(Arg.Any<int>()).Returns(new Technology
            {
                TechnologyId = 3,
                Name = "Vue"
            });

            AdCreateDto adCreateDto = new AdCreateDto
            {
                Title = "Vue Developer",
                MinimumExperience = 0,
                CreatedAt = DateTime.Now,
                ExpiredAt = DateTime.Now.AddDays(30),
                KeyResponsibilities = "KR|KR",
                Requirements = "R|R|R",
                Offer = "O|O",
                WorkHour = "FullTime",
                EmploymentType = "Intership",
                TechnologiesIds = new List<int> { 3 }
            };

            await adService.CreateAsync(adCreateDto);

            var ads = await adService.GetAllAsync();

            Assert.Equal(2, ads.Count);
        }

        [Fact]
        public async Task UpdateAd_ShouldUpdateAd_WhenAdExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            var updateForAd = new AdUpdateDto
            {
                Title = "Vue Developer",
                MinimumExperience = 0,
                CreatedAt = DateTime.Now,
                ExpiredAt = DateTime.Now.AddDays(30),
                KeyResponsibilities = "KR|KR",
                Requirements = "R|R|R",
                Offer = "O|O",
                WorkHour = "FullTime",
                EmploymentType = "Intership",
            };

            await adService.UpdateAsync(1, updateForAd);

            var ads = await adService.GetAllAsync();

            Assert.Equal(ads[0].Title, "Vue Developer");
        }

        [Fact]
        public async Task UpdateAd_ShouldThrowEntityNotFoundException_WhenAdDontExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            await Assert.ThrowsAsync<EntityNotFoundException>(async () => await adService.UpdateAsync(1000, new AdUpdateDto
            {
                Title = "Vue Developer",
                MinimumExperience = 0,
                CreatedAt = DateTime.Now,
                ExpiredAt = DateTime.Now.AddDays(30),
                KeyResponsibilities = "KR|KR",
                Requirements = "R|R|R",
                Offer = "O|O",
                WorkHour = "FullTime",
                EmploymentType = "Intership",
            }));
        }

        [Fact]
        public async Task DeleteAd_ShouldDeleteAdFromDatabase_WhenAdExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            await adService.DeleteAsync(1);

            var ads = await adService.GetAllAsync();

            Assert.Equal(0, ads.Count);
        }

        [Fact]
        public async Task DeleteAd_ShouldThrowEntityNotFoundException_WhenAdDontExists()
        {
            var databaseContext = await Helpers<Ad>.GetDatabaseContext(_ads);
            AdService adService = new(databaseContext, _mapper, _technologyService, _logger);

            await Assert.ThrowsAsync<EntityNotFoundException>(async () => await adService.DeleteAsync(1000));
        }
    }
}