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

namespace SoftwareInstallationTests.DataModelsTests;

[TestFixture]
internal class SoftwareHistoryDataModelTests
{
    private SoftwareHistoryDataModel programHistory;

    [Test]
    public void programHistoryIdIsNullOrEmptyTest()
    {
        programHistory = CreateDataModel(null, 10);
        Assert.That(() => programHistory.Validate(), Throws.TypeOf<ValidationFieldException>());
        programHistory = CreateDataModel(string.Empty, 10);
        Assert.That(() => programHistory.Validate(), Throws.TypeOf<ValidationFieldException>());
    }

    [Test]
    public void programHistoryIdIsNotGuidTest()
    {
        programHistory = CreateDataModel("id", 10);
        Assert.That(() => programHistory.Validate(), Throws.TypeOf<ValidationFieldException>());
    }

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

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


    private static SoftwareHistoryDataModel CreateDataModel(string? programHistoryId, double oldPrice) =>
        new(programHistoryId, oldPrice);
}