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

namespace SmallSoftwareTests.DataModelsTests;

[TestFixture]
internal class PostDataModelTests
{
    [Test]
    public void IdIsNullOrEmptyTest()
    {
        var post = CreateDataModel(null, "name",
        PostType.SoftInstaller, 10, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(),
        Throws.TypeOf<ValidationException>());
        post = CreateDataModel(string.Empty, "name", PostType.SoftInstaller, 10, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void IdIsNotGuidTest()
    {
        var post = CreateDataModel("id", "name", PostType.SoftInstaller, 10, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]

    public void PostNameIsEmptyTest()
    {
        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null, PostType.SoftInstaller, 10, true, DateTime.UtcNow);
        Assert.That(() => manufacturer.Validate(),
        Throws.TypeOf<ValidationException>());
        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, PostType.SoftInstaller, 10, true,
        DateTime.UtcNow);
        Assert.That(() => manufacturer.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void PostTypeIsNoneTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.None, 10, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void SalaryIsLessOrZeroTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(),
        "name", PostType.SoftInstaller, 0, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(),
        Throws.TypeOf<ValidationException>());
        post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.SoftInstaller, -10, true,
        DateTime.UtcNow);
        Assert.That(() => post.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var postId = Guid.NewGuid().ToString();
        var postPostId = Guid.NewGuid().ToString();
        var postName = "name";
        var postType = PostType.SoftInstaller;
        var salary = 10;
        var isActual = false;
        var changeDate = DateTime.UtcNow.AddDays(-1);
        var post = CreateDataModel(postId, postName, postType,
        salary, isActual, changeDate);
        Assert.That(() => post.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(post.Id, Is.EqualTo(postId));
            Assert.That(post.PostName, Is.EqualTo(postName));
            Assert.That(post.PostType, Is.EqualTo(postType));
            Assert.That(post.Salary, Is.EqualTo(salary));
        });
    }
    private static PostDataModel CreateDataModel(string? id, 
    string? postName, PostType postType, double salary, bool isActual, DateTime
    changeDate) => 
        new (id, postName, postType, salary);
}