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

namespace PapaCarloTests.DataModelsTests;

[TestFixture]
internal class BlankDataModelTests
{
    [Test]
    public void IdIsNullEmptyTest()
    {
        var blank = CreateDataModel(null, "name");
        Assert.That(() => blank.Validate(), Throws.TypeOf<ValidationException>());
        blank = CreateDataModel(string.Empty, "name");
        Assert.That(() => blank.Validate(), Throws.TypeOf<ValidationException>());
    }

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

    [Test]
    public void BlankNameIsNullOrEmptyTest()
    {
        var blank = CreateDataModel(Guid.NewGuid().ToString(), null);
        Assert.That(() => blank.Validate(), Throws.TypeOf<ValidationException>());
        blank = CreateDataModel(Guid.NewGuid().ToString(), string.Empty);
        Assert.That(() => blank.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var blankId = Guid.NewGuid().ToString();
        var blankName = "name";
        var prevBlankName = "prevBlankName";
        var prevPrevBlankName = "prevPrevBlankName";
        var blank = CreateDataModel(blankId, blankName, prevBlankName, prevPrevBlankName);
        Assert.That(() => blank.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(blank.Id, Is.EqualTo(blankId));
            Assert.That(blank.BlankName, Is.EqualTo(blankName));
            Assert.That(blank.PrevBlankName, Is.EqualTo(prevBlankName));
            Assert.That(blank.PrevPrevBlankName, Is.EqualTo(prevPrevBlankName));
        });
    }

    private static BlankDataModel CreateDataModel(string? id, string? blankName, string? prevBlankName = null, string? prevPrevBlankName = null) =>
        new(id, blankName, prevBlankName, prevPrevBlankName);
}