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

namespace RomashkiTests
{
    [TestFixture]
    internal class WorkerDataModelTests
    {
        [Test]
        public void IdIsNullOrEmptyTest()
        {
            var worker = CreateDataModel(null, "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
            worker = CreateDataModel(string.Empty, "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void IdIsNotGuidTest()
        {
            var worker = CreateDataModel("id", "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void FIOIsNullOrEmptyTest()
        {
            var worker = CreateDataModel(Guid.NewGuid().ToString(), null, 
                Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
            worker = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 
            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void PostIdIsNullOrEmptyTest()
        {
            var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", null,
            DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
            worker = CreateDataModel(Guid.NewGuid().ToString(), "fio",
            string.Empty, DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void PostIdIsNotGuidTest()
        {
        var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", "postId", DateTime.Now.AddYears(-18), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void BirthDateIsNotCorrectTest()
        {
            var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio",
            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(1), DateTime.Now, false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void BirthDateAndEmploymentDateIsNotCorrectTest()
        {
            var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio",
            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now.AddYears(-18).AddDays(-1), false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
            worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", 
                Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now.AddYears(-16), false);
            Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void AllFieldsIsCorrectTest()
        {
            var workerId = Guid.NewGuid().ToString();
            var fio = "fio";
            var postId = Guid.NewGuid().ToString();
            var birthDate = DateTime.Now.AddYears(-16).AddDays(-1);
            var employmentDate = DateTime.Now;
            var isDelete = false;
            var worker = CreateDataModel(workerId, fio, postId, birthDate, employmentDate, isDelete);
            Assert.That(() => worker.Validate(), Throws.Nothing);
            Assert.Multiple(() =>
            {
                Assert.That(worker.Id, Is.EqualTo(workerId));
                Assert.That(worker.FIO, Is.EqualTo(fio));
                Assert.That(worker.PostId, Is.EqualTo(postId));
                Assert.That(worker.BirthDate, Is.EqualTo(birthDate));
                Assert.That(worker.EmploymentDate, Is.EqualTo(employmentDate));
                Assert.That(worker.IsDeleted, Is.EqualTo(isDelete));
            });
        }
        private static WorkerDataModel CreateDataModel(string? id, string? fio, 
            string? postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) => 
            new(id, fio, postId, birthDate, employmentDate, isDeleted);
    }
}