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 SalaryDataModelTests
{
    [Test]
    public void EmployeeIdIsEmptyTest()
    {
        var salary = CreateDataModel(null, DateTime.Now, 10);
        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
        salary = CreateDataModel(string.Empty, DateTime.Now, 10);
        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void EmployeeIdIsNotGuidTest()
    {
        var salary = CreateDataModel("employeeId", DateTime.Now, 10);
        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void SalaryIsLessOrZeroTest()
    {
        var salary = CreateDataModel(Guid.NewGuid().ToString(), DateTime.Now, 0);
        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
        salary = CreateDataModel(Guid.NewGuid().ToString(), DateTime.Now, -10);
        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var employeeId = Guid.NewGuid().ToString();
        var salaryDate = DateTime.Now.AddDays(-3).AddMinutes(-5);
        var enployeeSalary = 10;
        var salary = CreateDataModel(employeeId, salaryDate, enployeeSalary);
        Assert.That(() => salary.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(salary.EmployeeId, Is.EqualTo(employeeId));
            Assert.That(salary.SalaryDate, Is.EqualTo(salaryDate));
            Assert.That(salary.Salary, Is.EqualTo(enployeeSalary));
        });
    }

    private static SalaryDataModel CreateDataModel(string? employeeId, DateTime salaryDate, double employeeSalary) =>
        new(employeeId, salaryDate, employeeSalary);
}