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

namespace CandyHouseTests.DataModelsTests
{
    [TestFixture]
    public class SupplyItemDataModelTests
    {
        [Test]
        public void SupplyItem_ShouldThrowException_WhenSupplyIdIsInvalid()
        {
            var supplyItem = new SupplyItemDataModel("", Guid.NewGuid().ToString(), 10, ItemType.Ingredient);
            Assert.Throws<ValidationException>(supplyItem.Validate);
        }

        [Test]
        public void SupplyItem_ShouldThrowException_WhenItemIdIsInvalid()
        {
            var supplyItem = new SupplyItemDataModel(Guid.NewGuid().ToString(), "", 10, ItemType.Product);
            Assert.Throws<ValidationException>(supplyItem.Validate);
        }

        [Test]
        public void SupplyItem_ShouldThrowException_WhenQuantityIsZeroOrNegative()
        {
            var supplyItem = new SupplyItemDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0,
                ItemType.Product);
            Assert.Throws<ValidationException>(supplyItem.Validate);
        }

        [Test]
        public void SupplyItem_ShouldCreateSuccessfully_WithValidData()
        {
            var supplyItem = new SupplyItemDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,
                ItemType.Ingredient);
            Assert.That(supplyItem.Quantity, Is.EqualTo(10));
            Assert.That(supplyItem.ItemType, Is.EqualTo(ItemType.Ingredient));
        }
    }
}