using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SoftwareInstallationContracts.DataModels;
using SoftwareInstallationContracts.Exceptions;

namespace SoftwareInstallationTests.DataModelsTests;

internal class CompanyDataModelTests
{
    private CompanyDataModel company;

    [Test]
    public void IdIsNullEmptyTest()
    {
        company = CreateDataModel(null, "name");
        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationFieldException>());
        company = CreateDataModel(string.Empty, "name");
        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationFieldException>());
    }

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

    [Test]
    public void companyNameIsNullOrEmptyTest()
    {
        company = CreateDataModel(Guid.NewGuid().ToString(), null);
        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationFieldException>());
        company = CreateDataModel(Guid.NewGuid().ToString(), string.Empty);
        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationFieldException>());
    }

    [Test]
    public void AllFieldsIsCorrectTest()
    {
        string companyId = Guid.NewGuid().ToString();
        string companyName = "name";
        string prevcompanyName = "prevcompanyName";
        string prevPrevcompanyName = "prevPrevcompanyName";
        company = CreateDataModel(companyId, companyName, prevcompanyName, prevPrevcompanyName);
        Assert.That(() => company.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(company.Id, Is.EqualTo(companyId));
            Assert.That(company.CompanyName, Is.EqualTo(companyName));
            Assert.That(company.PrevCompanyName, Is.EqualTo(prevcompanyName));
            Assert.That(company.PrevPrevCompanyName, Is.EqualTo(prevPrevcompanyName));
        });
    }

    private static CompanyDataModel CreateDataModel(string? id, string? companyName, string? prevcompanyName = null, string? prevPrevcompanyName = null) =>
        new(id, companyName, prevcompanyName, prevPrevcompanyName);
}