using RomashkiContracts.DataModels;
using RomashkiContracts.Exceptions;

namespace RomashkiTests
{
    [TestFixture]
    internal class BuyerDataModelTests
    {
        [Test]
        public void IdIsNullOrEmptyTest()
        {
            var buyer = CreateDataModel(null, "fio", "email@123.qwe", 10, 10);
            Assert.That(() => buyer.Validate(),
            Throws.TypeOf<ValidationException>());
            buyer = CreateDataModel(string.Empty, "fio", "email@123.qwe", 10, 10);
            Assert.That(() => buyer.Validate(),
            Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void IdIsNotGuidTest()
        {
            var buyer = CreateDataModel("id", "fio", "email@123.qwe", 10, 10);
            Assert.That(() => buyer.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void FIOIsNullOrEmptyTest()
        {
            var buyer = CreateDataModel(Guid.NewGuid().ToString(), null, "email@123.qwe", 10, 10);
            Assert.That(() => buyer.Validate(), Throws.TypeOf<ValidationException>());
            buyer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "email@123.qwe", 10, 10);
            Assert.That(() => buyer.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void EmailIsNullOrEmptyTest()
        {
            var buyer = CreateDataModel(Guid.NewGuid().ToString(), "fio", null, 10, 10);
            Assert.That(() => buyer.Validate(), Throws.TypeOf<ValidationException>());
            buyer = CreateDataModel(Guid.NewGuid().ToString(), "fio", string.Empty, 10, 10);
            Assert.That(() => buyer.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void PhoneNumberIsIncorrectTest()
        {
            var buyer = CreateDataModel(Guid.NewGuid().ToString(), "fio", "email", 10, 10);
            Assert.That(() => buyer.Validate(), Throws.TypeOf<ValidationException>());
        }
        [Test]
        public void AllFieldsIsCorrectTest()
        {
            var buyerId = Guid.NewGuid().ToString();
            var fio = "Fio";
            var email = "email@123.qwe";
            var totalSpend = 10;
            var discountSize = 11;
            var buyer = CreateDataModel(buyerId, fio, email, totalSpend, discountSize);
            Assert.That(() => buyer.Validate(), Throws.Nothing);
            Assert.Multiple(() =>
            {
                Assert.That(buyer.Id, Is.EqualTo(buyerId));
                Assert.That(buyer.FIO, Is.EqualTo(fio));
                Assert.That(buyer.Email, Is.EqualTo(email));
                Assert.That(buyer.TotalSpend, Is.EqualTo(totalSpend));
                Assert.That(buyer.DiscountSize, Is.EqualTo(discountSize));
            });
        }
        private static BuyerDataModel CreateDataModel(string? id, string? fio, string? email,
            float totalSpend, double discountSize) => new(id, fio, email, totalSpend, discountSize);
    }

}