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

namespace AndDietCokeTests.DataModelsTests;

[TestFixture]
internal class BuyerDataModelTests
{
    [Test]
    public void IdIsNullOrEmptyTest()
    {
        var buyer = CreateDataModel(null, "name", "number", 10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
        buyer = CreateDataModel(string.Empty, "name", "number", 10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void IdIsNotGuidTest()
    {
        var buyer = CreateDataModel("id", "name", "number", 10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void NameIsNullOrEmptyTest()
    {
        var buyer = CreateDataModel(Guid.NewGuid().ToString(), null,
        "number", 10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
        buyer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty,
        "number", 10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void PhoneNumberIsNullOrEmptyTest()
    {
        var buyer = CreateDataModel(Guid.NewGuid().ToString(), "name", null,
        10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
        buyer = CreateDataModel(Guid.NewGuid().ToString(), "name",
        string.Empty, 10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void PhoneNumberIsIncorrectTest()
    {
        var buyer = CreateDataModel(Guid.NewGuid().ToString(), "name", "777",
        10);
        Assert.That(() => buyer.Validate(),
        Throws.TypeOf<ValidationException>());
    }
    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var buyerId = Guid.NewGuid().ToString();
        var name = "name";
        var phoneNumber = "+7-777-777-77-77";
        var discount = 11;
        var buyer = CreateDataModel(buyerId, name, phoneNumber, discount);
        Assert.That(() => buyer.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(buyer.Id, Is.EqualTo(buyerId));
            Assert.That(buyer.Name, Is.EqualTo(name));
            Assert.That(buyer.PhoneNumber, Is.EqualTo(phoneNumber));
            Assert.That(buyer.Discount, Is.EqualTo(discount));
        });
    }
    private static BuyerDataModel CreateDataModel(string? id, string? name,
    string? phoneNumber, double discount) =>
    new(id, name, phoneNumber, discount);

}