using MagicCarpetBusinessLogic.Implementations;
using MagicCarpetContracts.DataModels;
using MagicCarpetContracts.Enums;
using MagicCarpetContracts.Exceptions;
using MagicCarpetContracts.StoragesContracts;
using MagicCarpetTests.DataModelTests;
using Microsoft.Extensions.Logging;
using Moq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MagicCarpetTests.BusinessLogicContractsTests;

[TestFixture]
internal class TourBusinessLogicContractTests
{
    private TourBusinessLogicContract _tourBusinessLogicContract;
    private Mock<ITourStorageContract> _tourStorageContract;

    [OneTimeSetUp]
    public void OneTimeSetUp()
    {
        _tourStorageContract = new Mock<ITourStorageContract>();
        _tourBusinessLogicContract = new TourBusinessLogicContract(_tourStorageContract.Object, new Mock<ILogger>().Object);
    }

    [SetUp]
    public void SetUp()
    {
        _tourStorageContract.Reset();
    }

    [Test]
    public void GetAllTours_ReturnListOfRecords_Test()
    {
        //Arrange
        var listOriginal = new List<TourDataModel>()
        {
            new(Guid.NewGuid().ToString(), "name 1", "country1", 15.5, TourType.Ski, [],[]),
            new(Guid.NewGuid().ToString(), "name 2", "country2", 10.1, TourType.Sightseeing,[],[]),
            new(Guid.NewGuid().ToString(), "name 3", "country3", 13.9, TourType.Beach,[],[]),
        };
        _tourStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
        //Act
        var list = _tourBusinessLogicContract.GetAllTours();
        //Assert
        Assert.That(list, Is.Not.Null);
        Assert.That(list, Is.EquivalentTo(listOriginal));
    }

    [Test]
    public void GetAllTours_ReturnEmptyList_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.GetList()).Returns([]);
        //Act
        var list = _tourBusinessLogicContract.GetAllTours();
        //Assert
        Assert.That(list, Is.Not.Null);
        Assert.That(list, Has.Count.EqualTo(0));
        _tourStorageContract.Verify(x => x.GetList(), Times.Once);
    }

    [Test]
    public void GetAllTours_ReturnNull_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetAllTours(), Throws.TypeOf<NullListException>());
        _tourStorageContract.Verify(x => x.GetList(), Times.Once);
    }

    [Test]
    public void GetAllTours_StorageThrowError_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetAllTours(), Throws.TypeOf<StorageException>());
        _tourStorageContract.Verify(x => x.GetList(), Times.Once);
    }

    [Test]
    public void GetTourHistoryByTour_ReturnListOfRecords_Test()
    {
        //Arrange
        var tourId = Guid.NewGuid().ToString();
        var listOriginal = new List<TourHistoryDataModel>()
        {
            new(Guid.NewGuid().ToString(), 10),
            new(Guid.NewGuid().ToString(), 15),
            new(Guid.NewGuid().ToString(), 12),
        };
        _tourStorageContract.Setup(x => x.GetHistoryByTourId(It.IsAny<string>())).Returns(listOriginal);
        //Act
        var list = _tourBusinessLogicContract.GetTourHistoryByTour(tourId);
        //Assert
        Assert.That(list, Is.Not.Null);
        Assert.That(list, Is.EquivalentTo(listOriginal));
        _tourStorageContract.Verify(x => x.GetHistoryByTourId(tourId), Times.Once);
    }

    [Test]
    public void GetTourHistoryByTour_ReturnEmptyList_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.GetHistoryByTourId(It.IsAny<string>())).Returns([]);
        //Act
        var list = _tourBusinessLogicContract.GetTourHistoryByTour(Guid.NewGuid().ToString());
        //Assert
        Assert.That(list, Is.Not.Null);
        Assert.That(list, Has.Count.EqualTo(0));
        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourHistoryByTour_TourIdIsNullOrEmpty_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(null), Throws.TypeOf<ArgumentNullException>());
        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(string.Empty), Throws.TypeOf<ArgumentNullException>());
        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Never);
    }

    [Test]
    public void GetTourHistoryByTour_TourIdIsNotGuid_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour("tourId"), Throws.TypeOf<ValidationException>());
        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Never);
    }

    [Test]
    public void GetTourHistoryByTour_ReturnNull_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourHistoryByTour_StorageThrowError_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.GetHistoryByTourId(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourByData_GetById_ReturnRecord_Test()
    {
        //Arrange
        var id = Guid.NewGuid().ToString();
        var record = new TourDataModel(id, "name", "country", 10, TourType.Ski, [], []);
        _tourStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
        //Act
        var element = _tourBusinessLogicContract.GetTourByData(id);
        //Assert
        Assert.That(element, Is.Not.Null);
        Assert.That(element.Id, Is.EqualTo(id));
        _tourStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourByData_GetByName_ReturnRecord_Test()
    {
        //Arrange
        var name = "name";
        var record = new TourDataModel(Guid.NewGuid().ToString(), name, "country", 10, TourType.Ski, [], []);
        _tourStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
        //Act
        var element = _tourBusinessLogicContract.GetTourByData(name);
        //Assert
        Assert.That(element, Is.Not.Null);
        Assert.That(element.TourName, Is.EqualTo(name));
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
    }
    [Test]
    public void GetTourByData_GetByCountry_ReturnRecord_Test()
    {
        //Arrange
        var country = "country";
        var record = new TourDataModel(Guid.NewGuid().ToString(), "name", country, 10, TourType.Ski, [], []);  
        _tourStorageContract.Setup(x => x.GetElementByName(country)).Returns(record);
        //Act
        var element = _tourBusinessLogicContract.GetTourByData(country);
        //Assert
        Assert.That(element, Is.Not.Null);
        Assert.That(element.TourCountry, Is.EqualTo(country));
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourByData_EmptyData_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourByData(null), Throws.TypeOf<ArgumentNullException>());
        Assert.That(() => _tourBusinessLogicContract.GetTourByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
    }

    [Test]
    public void GetTourByData_GetById_NotFoundRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
        _tourStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourByData_GetByName_NotFoundRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourByData("name"), Throws.TypeOf<ElementNotFoundException>());
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
    }
    [Test]
    public void GetTourByData_GetByCountry_NotFoundRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourByData("country"), Throws.TypeOf<ElementNotFoundException>());
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void GetTourByData_StorageThrowError_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
        _tourStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.GetTourByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
        Assert.That(() => _tourBusinessLogicContract.GetTourByData("name"), Throws.TypeOf<StorageException>());
        _tourStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void InsertTour_CorrectRecord_Test()
    {
        //Arrange
        var flag = false;
        var record = new TourDataModel(Guid.NewGuid().ToString(), "name","country",10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
        _agencyStorageContract.Setup(x => x.CheckComponents(It.IsAny<TourDataModel>())).Returns(true);
        _tourStorageContract.Setup(x => x.AddElement(It.IsAny<TourDataModel>()))
            .Callback((TourDataModel x) =>
            {
                flag = x.Id == record.Id && x.TourName == record.TourName && x.TourCountry == record.TourCountry 
                    && x.Price == record.Price && x.Type == record.Type;
            });
        //Act
        _tourBusinessLogicContract.InsertTour(record);
        //Assert
        _agencyStorageContract.Verify(x => x.CheckComponents(It.IsAny<TourDataModel>()), Times.Once);
        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Once);
        Assert.That(flag);
    }

    [Test]
    public void InsertTour_RecordWithExistsData_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.AddElement(It.IsAny<TourDataModel>())).Throws(new ElementExistsException("Data", "Data"));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.InsertTour(new(Guid.NewGuid().ToString(), "name","country",10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Once);
    }

    [Test]
    public void InsertTour_NullRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.InsertTour(null), Throws.TypeOf<ArgumentNullException>());
        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Never);
    }

    [Test]
    public void InsertTour_InvalidRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.InsertTour(new TourDataModel("id", "name", "country", 10, TourType.Ski, [], [])), Throws.TypeOf<ValidationException>());
        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Never);
    }

    [Test]
    public void InsertTour_StorageThrowError_ThrowException_Test()
    {
        //Arrange
        Assert.That(() => _tourBusinessLogicContract.InsertTour(new TourDataModel(Guid.NewGuid().ToString(), "name","country", 10, TourType.Ski,
            [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)], [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<InsufficientException>());
        //Act&Assert
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
    }

    [Test]
    public void InsertFurniture_InsufficientError_ThrowException_Test()
    {
        //Arrange
        Assert.That(() => _tourBusinessLogicContract.InsertTour(new TourDataModel(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])),Throws.TypeOf<InsufficientException>());
        //Act&Assert
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
    }

    [Test]
    public void UpdateTour_CorrectRecord_Test()
    {
        //Arrange
        var flag = false;
        var record = new TourDataModel(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>()))
            .Callback((TourDataModel x) =>
            {
                flag = x.Id == record.Id && x.TourName == record.TourName && x.TourCountry == record.TourCountry
                    && x.Price == record.Price && x.Type == record.Type;
            });
        //Act
        _tourBusinessLogicContract.UpdateTour(record);
        //Assert
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
        Assert.That(flag);
    }

    [Test]
    public void UpdateTour_RecordWithIncorrectData_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new ElementNotFoundException(""));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementNotFoundException>());
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
    }

    [Test]
    public void UpdateTour_RecordWithExistsData_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new ElementExistsException("Data", "Data"));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf <ElementExistsException>());
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
    }

    [Test]
    public void UpdateTour_NullRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.UpdateTour(null), Throws.TypeOf<ArgumentNullException>());
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
    }

    [Test]
    public void UpdateTour_InvalidRecord_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new TourDataModel("id", "name", "country", 10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ValidationException>());
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
    }

    [Test]
    public void UpdateTour_StorageThrowError_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new StorageException(new InvalidOperationException()));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski, [new TourSuppliesDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)],
            [new TourAgencyDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
    }

    [Test]
    public void DeleteTour_CorrectRecord_Test()
    {
        //Arrange
        var id = Guid.NewGuid().ToString();
        var flag = false;
        _tourStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
        //Act
        _tourBusinessLogicContract.DeleteTour(id);
        //Assert
        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
        Assert.That(flag);
    }

    [Test]
    public void DeleteTour_RecordWithIncorrectId_ThrowException_Test()
    {
        //Arrange
        var id = Guid.NewGuid().ToString();
        _tourStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.DeleteTour(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
    }

    [Test]
    public void DeleteTour_IdIsNullOrEmpty_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.DeleteTour(null), Throws.TypeOf<ArgumentNullException>());
        Assert.That(() => _tourBusinessLogicContract.DeleteTour(string.Empty), Throws.TypeOf<ArgumentNullException>());
        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
    }

    [Test]
    public void DeleteTour_IdIsNotGuid_ThrowException_Test()
    {
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.DeleteTour("id"), Throws.TypeOf<ValidationException>());
        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
    }

    [Test]
    public void DeleteTour_StorageThrowError_ThrowException_Test()
    {
        //Arrange
        _tourStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
        //Act&Assert
        Assert.That(() => _tourBusinessLogicContract.DeleteTour(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
    }
}