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

namespace NorthBridgeTests.DataModelsTests;

[TestFixture]
internal class PostDataModelTests
{
    [Test]
    public void IdIsNullOrEmptyTest()
    {
        var post = CreateDataModel(null, Guid.NewGuid().ToString(), "PostName", PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());

        post = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), "PostName", PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void IdIsNotGuidTest()
    {
        var post = CreateDataModel("not-a-guid", Guid.NewGuid().ToString(), "PostName", PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void PostIdIsNullOrEmptyTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(), null, "PostName", PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());

        post = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "PostName", PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void PostIdIsNotGuidTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(), "not-a-guid", "PostName", PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void PostNameIsNullOrEmptyTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());

        post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, PostType.Manager, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void PostTypeIsNoneTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "PostName", PostType.None, 1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void SalaryIsLessOrEqualToZeroTest()
    {
        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "PostName", PostType.Manager, 0, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());

        post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "PostName", PostType.Manager, -1000, true, DateTime.UtcNow);
        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsAreCorrectTest()
    {
        var postId = Guid.NewGuid().ToString();
        var postPostId = Guid.NewGuid().ToString();
        var postName = "PostName";
        var postType = PostType.Manager;
        var salary = 1000.0;
        var isActual = true;
        var changeDate = DateTime.UtcNow;

        var post = CreateDataModel(postId, postPostId, postName, postType, salary, isActual, changeDate);

        Assert.That(() => post.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(post.Id, Is.EqualTo(postId));
            Assert.That(post.PostId, Is.EqualTo(postPostId));
            Assert.That(post.PostName, Is.EqualTo(postName));
            Assert.That(post.PostType, Is.EqualTo(postType));
            Assert.That(post.Salary, Is.EqualTo(salary));
            Assert.That(post.IsActual, Is.EqualTo(isActual));
            Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
        });
    }

    private static PostDataModel CreateDataModel(string? id, string? postId, string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
        new(id, postId, postName, postType, salary, isActual, changeDate);
}