using Contracts.DTO;
using Contracts.Repositories;
using Contracts.SearchModels;
using Contracts.Services;
using Contracts.ViewModels;
using Moq;
using Services.Support.Exceptions;

namespace Services.Tests.Domain;

public class SpendingGroupServiceTests
{
    [Fact]
    public async Task Create_ReturnsSpendingGroupViewModel()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Create(It.IsAny<SpendingGroupDto>())).ReturnsAsync(new SpendingGroupDto());
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        var result = await spendingGroupService.Create(new());

        spendingGroupRepoMock.Verify(repo => repo.Create(It.IsAny<SpendingGroupDto>()), Times.Once);
        Assert.NotNull(result);
        Assert.IsType<SpendingGroupViewModel>(result);
    }

    [Fact]
    public async Task GetList_ReturnsSpendingGroupViewModels()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.GetList(It.IsAny<SpendingGroupSearch>())).ReturnsAsync(_getAllSpendingGroups());
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        var result = await spendingGroupService.GetList();

        spendingGroupRepoMock.Verify(repo => repo.GetList(It.IsAny<SpendingGroupSearch>()), Times.Once);
        Assert.NotNull(result);
        Assert.IsType<List<SpendingGroupViewModel>>(result.ToList());
    }

    [Fact]
    public async Task Delete_ReturnsSpendingGroupViewModel()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Delete(It.IsAny<SpendingGroupSearch>())).ReturnsAsync(new SpendingGroupDto());
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        var result = await spendingGroupService.Delete(new());

        spendingGroupRepoMock.Verify(repo => repo.Delete(It.IsAny<SpendingGroupSearch>()), Times.Once);
        Assert.NotNull(result);
        Assert.IsType<SpendingGroupViewModel>(result);
    }

    [Fact]
    public void Delete_WhenSpendingGroupNotFound_ThrowsEntityNotFoundException()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Delete(It.IsAny<SpendingGroupSearch>())).ReturnsAsync((SpendingGroupDto)null);
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        Assert.ThrowsAsync<EntityNotFoundException>(() => spendingGroupService.Delete(new()));
    }

    [Fact]
    public async Task Update_ReturnsSpendingGroupViewModel()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Update(It.IsAny<SpendingGroupDto>())).ReturnsAsync(new SpendingGroupDto());
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        var result = await spendingGroupService.Update(new());

        spendingGroupRepoMock.Verify(repo => repo.Update(It.IsAny<SpendingGroupDto>()), Times.Once);
        Assert.NotNull(result);
        Assert.IsType<SpendingGroupViewModel>(result);
    }

    [Fact]
    public void Update_WhenSpendingGroupNotFound_ThrowsEntityNotFoundException()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Update(It.IsAny<SpendingGroupDto>())).ReturnsAsync((SpendingGroupDto)null);
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        Assert.ThrowsAsync<EntityNotFoundException>(() => spendingGroupService.Update(new()));
    }

    [Fact]
    public async Task GetDetails_ReturnsSpendingGroupViewModel()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Get(It.IsAny<SpendingGroupSearch>())).ReturnsAsync(new SpendingGroupDto());
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        var result = await spendingGroupService.GetDetails(new());

        spendingGroupRepoMock.Verify(repo => repo.Get(It.IsAny<SpendingGroupSearch>()), Times.Once);
        Assert.NotNull(result);
        Assert.IsType<SpendingGroupViewModel>(result);
    }

    [Fact]
    public void GetDetails_WhenSpendingGroupNotFound_ThrowsEntityNotFoundException()
    {
        var spendingGroupRepoMock = new Mock<ISpendingGroupRepo>();
        spendingGroupRepoMock.Setup(repo => repo.Get(It.IsAny<SpendingGroupSearch>())).ReturnsAsync((SpendingGroupDto)null);
        var spendingGroupService = new SpendingGroupService(spendingGroupRepoMock.Object);

        Assert.ThrowsAsync<EntityNotFoundException>(() => spendingGroupService.GetDetails(new()));
    }

    private IEnumerable<SpendingGroupDto> _getAllSpendingGroups() => new List<SpendingGroupDto>()
    {
        new() { Id = Guid.NewGuid(), Name = "Group 1" },
        new() { Id = Guid.NewGuid(), Name = "Group 2" }
    };
}