using MagicCarpetContracts.DataModels;
using MagicCarpetContracts.Exceptions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MagicCarpetTests.DataModelTests;

[TestFixture]
internal class TourHistoryDataModelTests
{
    [Test]
    public void CocktailIdIsNullOrEmptyTest()
    {
        var tour = CreateDataModel(null, 10);
        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
        tour = CreateDataModel(string.Empty, 10);
        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void ProductIdIsNotGuidTest()
    {
        var tour = CreateDataModel("id", 10);
        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void OldPriceIsLessOrZeroTest()
    {
        var tour = CreateDataModel(Guid.NewGuid().ToString(), 0);
        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
        tour = CreateDataModel(Guid.NewGuid().ToString(), -10);
        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var tourId = Guid.NewGuid().ToString();
        var oldPrice = 10;
        var tourHistory = CreateDataModel(tourId, oldPrice);
        Assert.That(() => tourHistory.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(tourHistory.TourId, Is.EqualTo(tourId));
            Assert.That(tourHistory.OldPrice, Is.EqualTo(oldPrice));
            Assert.That(tourHistory.ChangeDate, Is.LessThan(DateTime.UtcNow));
            Assert.That(tourHistory.ChangeDate, Is.GreaterThan(DateTime.UtcNow.AddMinutes(-1)));
        });
    }

    private static TourHistoryDataModel CreateDataModel(string? tourId, double oldPrice) =>
        new(tourId, oldPrice);
}