using BitterlyAndExclamationMarkContracts.DataModels;
using BitterlyAndExclamationMarkContracts.Exceptions;
namespace BitterlyAndExclamationMarkTests.DataModelsTests;

[TestFixture]
internal class DishHistoryDataModelTests
{
    [Test]
    public void DishIdIsNullOrEmptyTest()
    {
        var dish = CreateDataModel(null, 10);
        Assert.That(() => dish.Validate(), Throws.TypeOf<ValidationException>());
        dish = CreateDataModel(string.Empty, 10);
        Assert.That(() => dish.Validate(),  Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void DishIdIsNotGuidTest()
    {
        var dish = CreateDataModel("id", 10);
        Assert.That(() => dish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void OldPriceIsLessOrZeroTest()
    {
        var dish = CreateDataModel(Guid.NewGuid().ToString(), 0);
        Assert.That(() => dish.Validate(), Throws.TypeOf<ValidationException>());
        dish = CreateDataModel(Guid.NewGuid().ToString(), -10);
        Assert.That(() => dish.Validate(), Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var dishId = Guid.NewGuid().ToString();
        var oldPrice = 10;
        var dishHistory = CreateDataModel(dishId, oldPrice);
        Assert.That(() => dishHistory.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(dishHistory.DishId, Is.EqualTo(dishId));
            Assert.That(dishHistory.OldPrice, Is.EqualTo(oldPrice));
            Assert.That(dishHistory.ChangeDate, Is.LessThan(DateTime.UtcNow));
            Assert.That(dishHistory.ChangeDate, Is.GreaterThan(DateTime.UtcNow.AddMinutes(-1)));
        });
    }
    private static DishHistoryDataModel CreateDataModel(string? dishId, double oldPrice) =>
        new(dishId, oldPrice);
}