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 TourSuppliesDataModelTests
{
    [Test]
    public void SuppliesIdIsNullOrEmptyTest()
    {
        var model = CreateDataModel(null, Guid.NewGuid().ToString(), 1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());

        model = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void SuppliesIdIsNotGuidTest()
    {
        var model = CreateDataModel("id", Guid.NewGuid().ToString(), 1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void TourIdIsNullOrEmptyTest()
    {
        var model = CreateDataModel(Guid.NewGuid().ToString(), null, 1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());

        model = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void TourIdIsNotGuidTest()
    {
        var model = CreateDataModel(Guid.NewGuid().ToString(), "id", 1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void CountIsLessOrZeroTest()
    {
        var model = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
        model = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -1);
        Assert.That(() => model.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var suppliesId = Guid.NewGuid().ToString();
        var tourId = Guid.NewGuid().ToString();
        var count = 1;
        var model = CreateDataModel(suppliesId, tourId, count);
        Assert.That(() => model.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(model.SuppliesId, Is.EqualTo(suppliesId));
            Assert.That(model.TourId, Is.EqualTo(tourId));
            Assert.That(model.Count, Is.EqualTo(count));
        });
    }

    private static TourSuppliesDataModel CreateDataModel(string? suppliesId, string? tourId, int count)
        => new(suppliesId, tourId, count);
}