using ElectricalRepairServiceContract.DataModels;
using ElectricalRepairServiceContract.Enums;
using ElectricalRepairServiceContract.Exceptions;
using NUnit.Framework;
using System;

namespace ElectricalRepairServiceTests.DataModelsTests
{
    [TestFixture]
    internal class PostDataModelTest
    {
        [Test]
        public void IdIsNullOrEmptyTest()
        {
            var post = CreateDataModel(null, PostType.Manager, true, DateTime.Now, "Valid description");
            Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());

            post = CreateDataModel(string.Empty, PostType.Manager, true, DateTime.Now, "Valid description");
            Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
        }

        [Test]
        public void IdIsNotGuidTest()
        {
            var post = CreateDataModel("invalid-id", PostType.Manager, true, DateTime.Now, "Valid description");
            Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
        }

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

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

        [Test]
        public void AllFieldsCorrectTest()
        {
            var id = Guid.NewGuid().ToString();
            var postType = PostType.Manager;
            var isActual = true;
            var changeDate = DateTime.Now;
            var description = "Responsible for managing the team";

            var post = CreateDataModel(id, postType, isActual, changeDate, description);

            Assert.That(post.Id, Is.EqualTo(id));
            Assert.That(post.PostType, Is.EqualTo(postType));
            Assert.That(post.IsActual, Is.EqualTo(isActual));
            Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
            Assert.That(post.Description, Is.EqualTo(description));
        }

        private PostDataModel CreateDataModel(string id, PostType postType, bool isActual, DateTime changeDate, string description)
            => new PostDataModel(id, postType, isActual, changeDate, description);
    }
}