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

namespace PuferFishTests.DataModelsTests;

internal class SupplyProductDataModelTests
{
    [Test]
    public void SuppliesIdIsNullOrEmptyTest()
    {
        var productSupplies = CreateDataModel(null, Guid.NewGuid().ToString(), 1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());

        productSupplies = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void SuppliesIdIsNotGuidTest()
    {
        var productSupplies = CreateDataModel("suppliesId", Guid.NewGuid().ToString(), 1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void ProductIdIsNullOrEmptyTest()
    {
        var productSupplies = CreateDataModel(Guid.NewGuid().ToString(), null, 1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());

        productSupplies = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void ProductIdIsNotGuidTest()
    {
        var productSupplies = CreateDataModel(Guid.NewGuid().ToString(), "productId", 1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void CountIsLessOrZeroTest()
    {
        var productSupplies = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());
        productSupplies = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -1);
        Assert.That(() => productSupplies.Validate(), Throws.TypeOf<ValidationException>());
    }

    [Test]
    public void AllFieldsIsCorrectTest()
    {
        var supplyId = Guid.NewGuid().ToString();
        var productId = Guid.NewGuid().ToString();
        var count = 1;
        var productSupplies = CreateDataModel(supplyId, productId, count);
        Assert.That(() => productSupplies.Validate(), Throws.Nothing);
        Assert.Multiple(() =>
        {
            Assert.That(productSupplies.SupplyId, Is.EqualTo(supplyId));
            Assert.That(productSupplies.ProductId, Is.EqualTo(productId));
            Assert.That(productSupplies.Count, Is.EqualTo(count));
        });
    }

    private static SupplyProductDataModel CreateDataModel(string? suppliesId, string? productId, int count)
        => new(suppliesId, productId, count);
}